X-Git-Url: https://git.immae.eu/?a=blobdiff_plain;f=tests.js;h=1b1d44577a91b01e8addb301c54b707c594610c8;hb=9bc39377aa0317ffbfed3b6e29814bb26681cfd5;hp=7f133cd7e3d5ed4e9e700f0b6a4c0daaa54247ac;hpb=cf7258fd4f822891f8906844177d2839f63e861b;p=perso%2FImmae%2FProjets%2FCryptomonnaies%2FBIP39.git

diff --git a/tests.js b/tests.js
index 7f133cd..1b1d445 100644
--- a/tests.js
+++ b/tests.js
@@ -44,6 +44,67 @@ function waitForGenerate(fn, maxTime) {
     wait();
 }
 
+function waitForFeedback(fn, maxTime) {
+    if (!maxTime) {
+        maxTime = testMaxTime;
+    }
+    var start = new Date().getTime();
+    var wait = function keepWaiting() {
+        var now = new Date().getTime();
+        var hasTimedOut = now - start > maxTime;
+        if (hasTimedOut) {
+            console.log("Test timed out");
+            fn();
+            return;
+        }
+        var feedback = page.evaluate(function() {
+            var feedback = $(".feedback");
+            if (feedback.css("display") == "none") {
+                return "";
+            }
+            return feedback.text();
+        });
+        var hasFinished = feedback.length > 0 && feedback != "Calculating...";
+        if (hasFinished) {
+            fn();
+        }
+        else {
+            setTimeout(keepWaiting, 100);
+        }
+    }
+    wait();
+}
+
+function waitForEntropyFeedback(fn, maxTime) {
+    if (!maxTime) {
+        maxTime = testMaxTime;
+    }
+    var origFeedback = page.evaluate(function() {
+        return $(".entropy-container").text();
+    });
+    var start = new Date().getTime();
+    var wait = function keepWaiting() {
+        var now = new Date().getTime();
+        var hasTimedOut = now - start > maxTime;
+        if (hasTimedOut) {
+            console.log("Test timed out");
+            fn();
+            return;
+        }
+        var feedback = page.evaluate(function() {
+            return $(".entropy-container").text();
+        });
+        var hasFinished = feedback != origFeedback;
+        if (hasFinished) {
+            fn();
+        }
+        else {
+            setTimeout(keepWaiting, 100);
+        }
+    }
+    wait();
+}
+
 function next() {
     if (tests.length > 0) {
         var testsStr = tests.length == 1 ? "test" : "tests";
@@ -56,6 +117,21 @@ function next() {
     }
 }
 
+/**
+ * Randomize array element order in-place.
+ * Using Durstenfeld shuffle algorithm.
+ * See http://stackoverflow.com/a/12646864
+ */
+function shuffle(array) {
+    for (var i = array.length - 1; i > 0; i--) {
+        var j = Math.floor(Math.random() * (i + 1));
+        var temp = array[i];
+        array[i] = array[j];
+        array[j] = temp;
+    }
+    return array;
+}
+
 tests = [
 
 // Page loads with status of 'success'
@@ -86,18 +162,17 @@ page.open(url, function(status) {
 // Entering mnemonic generates addresses
 function() {
 page.open(url, function(status) {
-    var expected = "1Di3Vp7tBWtyQaDABLAjfWtF6V7hYKJtug";
     // set the phrase
     page.evaluate(function() {
         $(".phrase").val("abandon abandon ability").trigger("input");
     });
     // get the address
     waitForGenerate(function() {
-        var actual = page.evaluate(function() {
-            return $(".address:first").text();
+        var addressCount = page.evaluate(function() {
+            return $(".address").length;
         });
-        if (actual != expected) {
-            console.log("Mnemonic did not generate address");
+        if (addressCount != 20) {
+            console.log("Mnemonic did not generate addresses");
             console.log("Expected: " + expected);
             console.log("Got: " + actual);
             fail();
@@ -443,6 +518,90 @@ page.open(url, function(status) {
 });
 },
 
+// Network can be set to dash
+function() {
+page.open(url, function(status) {
+    // set the phrase and coin
+    var expected = "XdbhtMuGsPSkE6bPdNTHoFSszQKmK4S5LT";
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+        $(".network option[selected]").removeAttr("selected");
+        $(".network option[value=10]").prop("selected", true);
+        $(".network").trigger("change");
+    });
+    // check the address is generated correctly
+    waitForGenerate(function() {
+        var actual = page.evaluate(function() {
+            return $(".address:first").text();
+        });
+        if (actual != expected) {
+            console.log("DASH address is incorrect");
+            console.log("Expected: " + expected);
+            console.log("Actual: " + actual);
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Network can be set to namecoin
+function() {
+page.open(url, function(status) {
+    // set the phrase and coin
+    var expected = "Mw2vK2Bvex1yYtYF6sfbEg2YGoUc98YUD2";
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+        $(".network option[selected]").removeAttr("selected");
+        $(".network option[value=11]").prop("selected", true);
+        $(".network").trigger("change");
+    });
+    // check the address is generated correctly
+    waitForGenerate(function() {
+        var actual = page.evaluate(function() {
+            return $(".address:first").text();
+        });
+        if (actual != expected) {
+            console.log("Namecoin address is incorrect");
+            console.log("Expected: " + expected);
+            console.log("Actual: " + actual);
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Network can be set to peercoin
+function() {
+page.open(url, function(status) {
+    // set the phrase and coin
+    var expected = "PVAiioTaK2eDHSEo3tppT9AVdBYqxRTBAm";
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+        $(".network option[selected]").removeAttr("selected");
+        $(".network option[value=12]").prop("selected", true);
+        $(".network").trigger("change");
+    });
+    // check the address is generated correctly
+    waitForGenerate(function() {
+        var actual = page.evaluate(function() {
+            return $(".address:first").text();
+        });
+        if (actual != expected) {
+            console.log("Peercoin address is incorrect");
+            console.log("Expected: " + expected);
+            console.log("Actual: " + actual);
+            fail();
+        }
+        next();
+    });
+});
+},
+
 // BIP39 seed is set from phrase
 function() {
 page.open(url, function(status) {
@@ -525,57 +684,2250 @@ page.open(url, function(status) {
 },
 
 // BIP44 derivation path is shown
-// TODO finish these tests
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    var expected = "m/44'/0'/0'/0";
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+    });
+    // check the derivation path of the first address
+    waitForGenerate(function() {
+        var actual = page.evaluate(function() {
+            return $("#bip44 .path").val();
+        });
+        if (actual != expected) {
+            console.log("BIP44 derivation path is incorrect");
+            console.log("Expected: " + expected);
+            console.log("Actual: " + actual);
+            fail();
+        }
+        next();
+    });
+});
+},
 
 // BIP44 extended private key is shown
-// BIP44 extended public key is shown
-// BIP44 purpose field changes address list
-// BIP44 coin field changes address list
-// BIP44 account field changes address list
-// BIP44 external/internal field changes address list
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    var expected = "xprvA2DxxvPZcyRvYgZMGS53nadR32mVDeCyqQYyFhrCVbJNjPoxMeVf7QT5g7mQASbTf9Kp4cryvcXnu2qurjWKcrdsr91jXymdCDNxKgLFKJG";
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+    });
+    // check the BIP44 extended private key
+    waitForGenerate(function() {
+        var actual = page.evaluate(function() {
+            return $(".extended-priv-key").val();
+        });
+        if (actual != expected) {
+            console.log("BIP44 extended private key is incorrect");
+            console.log("Expected: " + expected);
+            console.log("Actual: " + actual);
+            fail();
+        }
+        next();
+    });
+});
+},
 
-// BIP32 derivation path can be set
-// BIP32 can use hardened derivation paths
-// BIP32 extended private key is shown
-// BIP32 extended public key is shown
+// BIP44 extended public key is shown
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    var expected = "xpub6FDKNRvTTLzDmAdpNTc49ia9b4byd6vqCdUa46Fp3vqMcC96uBoufCmZXQLiN5AK3iSCJMhf9gT2sxkpyaPepRuA7W3MujV5tGmF5VfbueM";
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+    });
+    // check the BIP44 extended public key
+    waitForGenerate(function() {
+        var actual = page.evaluate(function() {
+            return $(".extended-pub-key").val();
+        });
+        if (actual != expected) {
+            console.log("BIP44 extended public key is incorrect");
+            console.log("Expected: " + expected);
+            console.log("Actual: " + actual);
+            fail();
+        }
+        next();
+    });
+});
+},
 
-// Derivation path is shown in table
-// Derivation path for address can be hardened
-// Derivation path visibility can be toggled
-// Address is shown
-// Addresses are shown in order of derivation path
-// Address visibility can be toggled
-// Private key is shown
-// Private key visibility can be toggled
+// BIP44 purpose field changes address list
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    var expected = "1JbDzRJ2cDT8aat2xwKd6Pb2zzavow5MhF";
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+    });
+    waitForGenerate(function() {
+        // change the bip44 purpose field to 45
+        page.evaluate(function() {
+            $("#bip44 .purpose").val("45");
+            $("#bip44 .purpose").trigger("input");
+        });
+        waitForGenerate(function() {
+            // check the address for the new derivation path
+            var actual = page.evaluate(function() {
+                return $(".address:first").text();
+            });
+            if (actual != expected) {
+                console.log("BIP44 purpose field generates incorrect address");
+                console.log("Expected: " + expected);
+                console.log("Actual: " + actual);
+                fail();
+            }
+            next();
+        });
+    });
+});
+},
 
-// More addresses can be generated
-// A custom number of additional addresses can be generated
-// Additional addresses are shown in order of derivation path
+// BIP44 coin field changes address list
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    var expected = "1F6dB2djQYrxoyfZZmfr6D5voH8GkJTghk";
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+    });
+    waitForGenerate(function() {
+        // change the bip44 purpose field to 45
+        page.evaluate(function() {
+            $("#bip44 .coin").val("1");
+            $("#bip44 .coin").trigger("input");
+        });
+        waitForGenerate(function() {
+            // check the address for the new derivation path
+            var actual = page.evaluate(function() {
+                return $(".address:first").text();
+            });
+            if (actual != expected) {
+                console.log("BIP44 coin field generates incorrect address");
+                console.log("Expected: " + expected);
+                console.log("Actual: " + actual);
+                fail();
+            }
+            next();
+        });
+    });
+});
+},
 
-// BIP32 root key can be set by the user
-// Setting BIP32 root key clears the existing phrase, passphrase and seed
-// Clearing of phrase, passphrase and seed can be cancelled by user
-// Custom BIP32 root key is used when changing the derivation path
+// BIP44 account field changes address list
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    var expected = "1Nq2Wmu726XHCuGhctEtGmhxo3wzk5wZ1H";
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+    });
+    waitForGenerate(function() {
+        // change the bip44 purpose field to 45
+        page.evaluate(function() {
+            $("#bip44 .account").val("1");
+            $("#bip44 .account").trigger("input");
+        });
+        waitForGenerate(function() {
+            // check the address for the new derivation path
+            var actual = page.evaluate(function() {
+                return $(".address:first").text();
+            });
+            if (actual != expected) {
+                console.log("BIP44 account field generates incorrect address");
+                console.log("Expected: " + expected);
+                console.log("Actual: " + actual);
+                fail();
+            }
+            next();
+        });
+    });
+});
+},
+
+// BIP44 change field changes address list
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    var expected = "1KAGfWgqfVbSSXY56fNQ7YnhyKuoskHtYo";
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+    });
+    waitForGenerate(function() {
+        // change the bip44 purpose field to 45
+        page.evaluate(function() {
+            $("#bip44 .change").val("1");
+            $("#bip44 .change").trigger("input");
+        });
+        waitForGenerate(function() {
+            // check the address for the new derivation path
+            var actual = page.evaluate(function() {
+                return $(".address:first").text();
+            });
+            if (actual != expected) {
+                console.log("BIP44 change field generates incorrect address");
+                console.log("Expected: " + expected);
+                console.log("Actual: " + actual);
+                fail();
+            }
+            next();
+        });
+    });
+});
+},
+
+// BIP32 derivation path can be set
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    var expected = "16pYQQdLD1hH4hwTGLXBaZ9Teboi1AGL8L";
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+    });
+    // change tabs
+    waitForGenerate(function() {
+        page.evaluate(function() {
+            $("#bip32-tab a").click();
+        });
+        // set the derivation path to m/1
+        waitForGenerate(function() {
+            page.evaluate(function() {
+                $("#bip32 .path").val("m/1");
+                $("#bip32 .path").trigger("input");
+            });
+            // check the address is generated correctly
+            waitForGenerate(function() {
+                var actual = page.evaluate(function() {
+                    return $(".address:first").text();
+                });
+                if (actual != expected) {
+                    console.log("Custom BIP32 path generates incorrect address");
+                    console.log("Expected: " + expected);
+                    console.log("Actual: " + actual);
+                    fail();
+                }
+                next();
+            });
+        });
+    });
+});
+},
+
+// BIP32 can use hardened derivation paths
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    var expected = "14aXZeprXAE3UUKQc4ihvwBvww2LuEoHo4";
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+    });
+    // change tabs
+    waitForGenerate(function() {
+        page.evaluate(function() {
+            $("#bip32-tab a").click();
+        });
+        // set the derivation path to m/0'
+        waitForGenerate(function() {
+            page.evaluate(function() {
+                $("#bip32 .path").val("m/0'");
+                $("#bip32 .path").trigger("input");
+            });
+            // check the address is generated correctly
+            waitForGenerate(function() {
+                var actual = page.evaluate(function() {
+                    return $(".address:first").text();
+                });
+                if (actual != expected) {
+                    console.log("Hardened BIP32 path generates incorrect address");
+                    console.log("Expected: " + expected);
+                    console.log("Actual: " + actual);
+                    fail();
+                }
+                next();
+            });
+        });
+    });
+});
+},
+
+// BIP32 extended private key is shown
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    var expected = "xprv9va99uTVE5aLiutUVLTyfxfe8v8aaXjSQ1XxZbK6SezYVuikA9MnjQVTA8rQHpNA5LKvyQBpLiHbBQiiccKiBDs7eRmBogsvq3THFeLHYbe";
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+    });
+    // change tabs
+    waitForGenerate(function() {
+        page.evaluate(function() {
+            $("#bip32-tab a").click();
+        });
+        // check the extended private key is generated correctly
+        waitForGenerate(function() {
+            var actual = page.evaluate(function() {
+                return $(".extended-priv-key").val();
+            });
+            if (actual != expected) {
+                console.log("BIP32 extended private key is incorrect");
+                console.log("Expected: " + expected);
+                console.log("Actual: " + actual);
+                fail();
+            }
+            next();
+        });
+    });
+});
+},
+
+// BIP32 extended public key is shown
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    var expected = "xpub69ZVZQzP4T8dwPxwbMzz36cNgwy4yzTHmETZMyihzzXXNi3thgg3HCow1RtY252wdw5rS8369xKnraN5Q93y3FkFfJp2XEHWUrkyXsjS93P";
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+    });
+    // change tabs
+    waitForGenerate(function() {
+        page.evaluate(function() {
+            $("#bip32-tab a").click();
+        });
+        // check the extended public key is generated correctly
+        waitForGenerate(function() {
+            var actual = page.evaluate(function() {
+                return $(".extended-pub-key").val();
+            });
+            if (actual != expected) {
+                console.log("BIP32 extended public key is incorrect");
+                console.log("Expected: " + expected);
+                console.log("Actual: " + actual);
+                fail();
+            }
+            next();
+        });
+    });
+});
+},
+
+// Derivation path is shown in table
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    var expected = "m/44'/0'/0'/0/0";
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+    });
+    // check for derivation path in table
+    waitForGenerate(function() {
+        var actual = page.evaluate(function() {
+            return $(".index:first").text();
+        });
+        if (actual != expected) {
+            console.log("Derivation path shown incorrectly in table");
+            console.log("Expected: " + expected);
+            console.log("Actual: " + actual);
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Derivation path for address can be hardened
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    var expected = "18exLzUv7kfpiXRzmCjFDoC9qwNLFyvwyd";
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+    });
+    // change tabs
+    waitForGenerate(function() {
+        page.evaluate(function() {
+            $("#bip32-tab a").click();
+        });
+        waitForGenerate(function() {
+            // select the hardened addresses option
+            page.evaluate(function() {
+                $(".hardened-addresses").prop("checked", true);
+                $(".hardened-addresses").trigger("change");
+            });
+            waitForGenerate(function() {
+                // check the generated address is hardened
+                var actual = page.evaluate(function() {
+                    return $(".address:first").text();
+                });
+                if (actual != expected) {
+                    console.log("Hardened address is incorrect");
+                    console.log("Expected: " + expected);
+                    console.log("Actual: " + actual);
+                    fail();
+                }
+                next();
+            });
+        });
+    });
+});
+},
+
+// Derivation path visibility can be toggled
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+    });
+    waitForGenerate(function() {
+        // toggle path visibility
+        page.evaluate(function() {
+            $(".index-toggle").click();
+        });
+        // check the path is not visible
+        var isInvisible = page.evaluate(function() {
+            return $(".index:first span").hasClass("invisible");
+        });
+        if (!isInvisible) {
+            console.log("Toggled derivation path is visible");
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Address is shown
+function() {
+page.open(url, function(status) {
+    var expected = "1Di3Vp7tBWtyQaDABLAjfWtF6V7hYKJtug";
+    // set the phrase
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability").trigger("input");
+    });
+    // get the address
+    waitForGenerate(function() {
+        var actual = page.evaluate(function() {
+            return $(".address:first").text();
+        });
+        if (actual != expected) {
+            console.log("Address is not shown");
+            console.log("Expected: " + expected);
+            console.log("Got: " + actual);
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Addresses are shown in order of derivation path
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability").trigger("input");
+    });
+    // get the derivation paths
+    waitForGenerate(function() {
+        var paths = page.evaluate(function() {
+            return $(".index").map(function(i, e) {
+                return $(e).text();
+            });
+        });
+        if (paths.length != 20) {
+            console.log("Total paths is less than expected: " + paths.length);
+            fail();
+        }
+        for (var i=0; i<paths.length; i++) {
+            var expected = "m/44'/0'/0'/0/" + i;
+            var actual = paths[i];
+            if (actual != expected) {
+                console.log("Path " + i + " is incorrect");
+                console.log("Expected: " + expected);
+                console.log("Actual: " + actual);
+                fail();
+            }
+        }
+        next();
+    });
+});
+},
+
+// Address visibility can be toggled
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+    });
+    waitForGenerate(function() {
+        // toggle address visibility
+        page.evaluate(function() {
+            $(".address-toggle").click();
+        });
+        // check the address is not visible
+        var isInvisible = page.evaluate(function() {
+            return $(".address:first span").hasClass("invisible");
+        });
+        if (!isInvisible) {
+            console.log("Toggled address is visible");
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Public key is shown
+function() {
+page.open(url, function(status) {
+    var expected = "033f5aed5f6cfbafaf223188095b5980814897295f723815fea5d3f4b648d0d0b3";
+    // set the phrase
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability").trigger("input");
+    });
+    // get the address
+    waitForGenerate(function() {
+        var actual = page.evaluate(function() {
+            return $(".pubkey:first").text();
+        });
+        if (actual != expected) {
+            console.log("Public key is not shown");
+            console.log("Expected: " + expected);
+            console.log("Got: " + actual);
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Public key visibility can be toggled
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+    });
+    waitForGenerate(function() {
+        // toggle public key visibility
+        page.evaluate(function() {
+            $(".public-key-toggle").click();
+        });
+        // check the public key is not visible
+        var isInvisible = page.evaluate(function() {
+            return $(".pubkey:first span").hasClass("invisible");
+        });
+        if (!isInvisible) {
+            console.log("Toggled public key is visible");
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Private key is shown
+function() {
+page.open(url, function(status) {
+    var expected = "L26cVSpWFkJ6aQkPkKmTzLqTdLJ923e6CzrVh9cmx21QHsoUmrEE";
+    // set the phrase
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability").trigger("input");
+    });
+    // get the address
+    waitForGenerate(function() {
+        var actual = page.evaluate(function() {
+            return $(".privkey:first").text();
+        });
+        if (actual != expected) {
+            console.log("Private key is not shown");
+            console.log("Expected: " + expected);
+            console.log("Got: " + actual);
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Private key visibility can be toggled
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+    });
+    waitForGenerate(function() {
+        // toggle private key visibility
+        page.evaluate(function() {
+            $(".private-key-toggle").click();
+        });
+        // check the private key is not visible
+        var isInvisible = page.evaluate(function() {
+            return $(".privkey:first span").hasClass("invisible");
+        });
+        if (!isInvisible) {
+            console.log("Toggled private key is visible");
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// More addresses can be generated
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+    });
+    waitForGenerate(function() {
+        // generate more addresses
+        page.evaluate(function() {
+            $(".more").click();
+        });
+        waitForGenerate(function() {
+            // check there are more addresses
+            var addressCount = page.evaluate(function() {
+                return $(".address").length;
+            });
+            if (addressCount != 40) {
+                console.log("More addresses cannot be generated");
+                fail();
+            }
+            next();
+        });
+    });
+});
+},
+
+// A custom number of additional addresses can be generated
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+    });
+    waitForGenerate(function() {
+        // get the current number of addresses
+        var oldAddressCount = page.evaluate(function() {
+            return $(".address").length;
+        });
+        // set a custom number of additional addresses
+        page.evaluate(function() {
+            $(".rows-to-add").val(1);
+        });
+        // generate more addresses
+        page.evaluate(function() {
+            $(".more").click();
+        });
+        waitForGenerate(function() {
+            // check there are the correct number of addresses
+            var newAddressCount = page.evaluate(function() {
+                return $(".address").length;
+            });
+            if (newAddressCount - oldAddressCount != 1) {
+                console.log("Number of additional addresses cannot be customized");
+                console.log(newAddressCount)
+                console.log(oldAddressCount)
+                fail();
+            }
+            next();
+        });
+    });
+});
+},
+
+// Additional addresses are shown in order of derivation path
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability").trigger("input");
+    });
+    waitForGenerate(function() {
+        // generate more addresses
+        page.evaluate(function() {
+            $(".more").click();
+        });
+        // get the derivation paths
+        waitForGenerate(function() {
+            var paths = page.evaluate(function() {
+                return $(".index").map(function(i, e) {
+                    return $(e).text();
+                });
+            });
+            if (paths.length != 40) {
+                console.log("Total additional paths is less than expected: " + paths.length);
+                fail();
+            }
+            for (var i=0; i<paths.length; i++) {
+                var expected = "m/44'/0'/0'/0/" + i;
+                var actual = paths[i];
+                if (actual != expected) {
+                    console.log("Path " + i + " is not in correct order");
+                    console.log("Expected: " + expected);
+                    console.log("Actual: " + actual);
+                    fail();
+                }
+            }
+            next();
+        });
+    });
+});
+},
+
+// BIP32 root key can be set by the user
+function() {
+page.open(url, function(status) {
+    var expected = "1Di3Vp7tBWtyQaDABLAjfWtF6V7hYKJtug";
+    // set the root key
+    page.evaluate(function() {
+        $(".root-key").val("xprv9s21ZrQH143K2jkGDCeTLgRewT9F2pH5JZs2zDmmjXes34geVnFiuNa8KTvY5WoYvdn4Ag6oYRoB6cXtc43NgJAEqDXf51xPm6fhiMCKwpi").trigger("input");
+    });
+    waitForGenerate(function() {
+        var actual = page.evaluate(function() {
+            return $(".address:first").text();
+        });
+        if (actual != expected) {
+            console.log("Setting BIP32 root key results in wrong address");
+            console.log("Expected: " + expected);
+            console.log("Actual: " + actual);
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Setting BIP32 root key clears the existing phrase, passphrase and seed
+function() {
+page.open(url, function(status) {
+    var expected = "";
+    // set a mnemonic
+    page.evaluate(function() {
+        $(".phrase").val("A non-blank but invalid value");
+    });
+    // Accept any confirm dialogs
+    page.onConfirm = function() {
+        return true;
+    };
+    // set the root key
+    page.evaluate(function() {
+        $(".root-key").val("xprv9s21ZrQH143K2jkGDCeTLgRewT9F2pH5JZs2zDmmjXes34geVnFiuNa8KTvY5WoYvdn4Ag6oYRoB6cXtc43NgJAEqDXf51xPm6fhiMCKwpi").trigger("input");
+    });
+    waitForGenerate(function() {
+        var actual = page.evaluate(function() {
+            return $(".phrase").val();
+        });
+        if (actual != expected) {
+            console.log("Phrase not cleared when setting BIP32 root key");
+            console.log("Expected: " + expected);
+            console.log("Actual: " + actual);
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Clearing of phrase, passphrase and seed can be cancelled by user
+function() {
+page.open(url, function(status) {
+    var expected = "abandon abandon ability";
+    // set a mnemonic
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+    });
+    // Cancel any confirm dialogs
+    page.onConfirm = function() {
+        return false;
+    };
+    // set the root key
+    page.evaluate(function() {
+        $(".root-key").val("xprv9s21ZrQH143K3d3vzEDD3KpSKmxsZ3y7CqhAL1tinwtP6wqK4TKEKjpBuo6P2hUhB6ZENo7TTSRytiP857hBZVpBdk8PooFuRspE1eywwNZ").trigger("input");
+    });
+    var actual = page.evaluate(function() {
+        return $(".phrase").val();
+    });
+    if (actual != expected) {
+        console.log("Phrase not retained when cancelling changes to BIP32 root key");
+        console.log("Expected: " + expected);
+        console.log("Actual: " + actual);
+        fail();
+    }
+    next();
+});
+},
+
+// Custom BIP32 root key is used when changing the derivation path
+function() {
+page.open(url, function(status) {
+    var expected = "1Nq2Wmu726XHCuGhctEtGmhxo3wzk5wZ1H";
+    // set the root key
+    page.evaluate(function() {
+        $(".root-key").val("xprv9s21ZrQH143K2jkGDCeTLgRewT9F2pH5JZs2zDmmjXes34geVnFiuNa8KTvY5WoYvdn4Ag6oYRoB6cXtc43NgJAEqDXf51xPm6fhiMCKwpi").trigger("input");
+    });
+    waitForGenerate(function() {
+        // change the derivation path
+        page.evaluate(function() {
+            $("#account").val("1").trigger("input");
+        });
+        // check the bip32 root key is used for derivation, not the blank phrase
+        waitForGenerate(function() {
+            var actual = page.evaluate(function() {
+                return $(".address:first").text();
+            });
+            if (actual != expected) {
+                console.log("Changing the derivation path does not use BIP32 root key");
+                console.log("Expected: " + expected);
+                console.log("Actual: " + actual);
+                fail();
+            }
+            next();
+        });
+    });
+});
+},
+
+// Incorrect mnemonic shows error
+function() {
+page.open(url, function(status) {
+    // set the root key
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon abandon").trigger("input");
+    });
+    waitForFeedback(function() {
+        // check there is an error shown
+        var feedback = page.evaluate(function() {
+            return $(".feedback").text();
+        });
+        if (feedback.length <= 0) {
+            console.log("Invalid mnemonic does not show error");
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Incorrect word shows suggested replacement
+function() {
+page.open(url, function(status) {
+    // set the root key
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon abiliti").trigger("input");
+    });
+    // check there is a suggestion shown
+    waitForFeedback(function() {
+        var feedback = page.evaluate(function() {
+            return $(".feedback").text();
+        });
+        if (feedback.indexOf("did you mean ability?") < 0) {
+            console.log("Incorrect word does not show suggested replacement");
+            console.log("Error: " + error);
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Incorrect BIP32 root key shows error
+function() {
+page.open(url, function(status) {
+    // set the root key
+    page.evaluate(function() {
+        $(".root-key").val("xprv9s21ZrQH143K2jkGDCeTLgRewT9F2pH5JZs2zDmmjXes34geVnFiuNa8KTvY5WoYvdn4Ag6oYRoB6cXtc43NgJAEqDXf51xPm6fhiMCKwpj").trigger("input");
+    });
+    // check there is an error shown
+    waitForFeedback(function() {
+        var feedback = page.evaluate(function() {
+            return $(".feedback").text();
+        });
+        if (feedback != "Invalid root key") {
+            console.log("Invalid root key does not show error");
+            console.log("Error: " + error);
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Derivation path not starting with m shows error
+function() {
+page.open(url, function(status) {
+    // set the mnemonic phrase
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability").trigger("input");
+    });
+    waitForGenerate(function() {
+        // select the bip32 tab so custom derivation path can be set
+        page.evaluate(function() {
+            $("#bip32-tab a").click();
+        });
+        waitForGenerate(function() {
+            // set the incorrect derivation path
+            page.evaluate(function() {
+                $("#bip32 .path").val("n/0").trigger("input");
+            });
+            waitForFeedback(function() {
+                var feedback = page.evaluate(function() {
+                    return $(".feedback").text();
+                });
+                if (feedback != "First character must be 'm'") {
+                    console.log("Derivation path not starting with m should show error");
+                    console.log("Error: " + error);
+                    fail();
+                }
+                next();
+            });
+        });
+    });
+});
+},
+
+// Derivation path containing invalid characters shows useful error
+function() {
+page.open(url, function(status) {
+    // set the mnemonic phrase
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability").trigger("input");
+    });
+    waitForGenerate(function() {
+        // select the bip32 tab so custom derivation path can be set
+        page.evaluate(function() {
+            $("#bip32-tab a").click();
+        });
+        waitForGenerate(function() {
+            // set the incorrect derivation path
+            page.evaluate(function() {
+                $("#bip32 .path").val("m/1/0wrong1/1").trigger("input");
+            });
+            waitForFeedback(function() {
+                var feedback = page.evaluate(function() {
+                    return $(".feedback").text();
+                });
+                if (feedback != "Invalid characters 0wrong1 found at depth 2") {
+                    console.log("Derivation path with invalid characters should show error");
+                    console.log("Error: " + error);
+                    fail();
+                }
+                next();
+            });
+        });
+    });
+});
+},
+
+// Github Issue 11: Default word length is 15
+// https://github.com/iancoleman/bip39/issues/11
+function() {
+page.open(url, function(status) {
+    // get the word length
+    var defaultLength = page.evaluate(function() {
+        return $(".strength").val();
+    });
+    if (defaultLength != 15) {
+        console.log("Default word length is not 15");
+        fail();
+    }
+    next();
+});
+},
+
+
+// Github Issue 12: Generate more rows with private keys hidden
+// https://github.com/iancoleman/bip39/issues/12
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+    });
+    waitForGenerate(function() {
+        // toggle private keys hidden, then generate more addresses
+        page.evaluate(function() {
+            $(".private-key-toggle").click();
+            $(".more").click();
+        });
+        waitForGenerate(function() {
+            // check more have been generated
+            var expected = 40;
+            var numPrivKeys = page.evaluate(function() {
+                return $(".privkey").length;
+            });
+            if (numPrivKeys != expected) {
+                console.log("Wrong number of addresses when clicking 'more' with hidden privkeys");
+                console.log("Expected: " + expected);
+                console.log("Actual: " + numPrivKeys);
+                fail();
+            }
+            // check no private keys are shown
+            var numHiddenPrivKeys = page.evaluate(function() {
+                return $(".privkey span[class=invisible]").length;
+            });
+            if (numHiddenPrivKeys != expected) {
+                console.log("Generating more does not retain hidden state of privkeys");
+                console.log("Expected: " + expected);
+                console.log("Actual: " + numHiddenPrivKeys);
+                fail();
+            }
+            next();
+        });
+    });
+});
+},
+
+// Github Issue 19: Mnemonic is not sensitive to whitespace
+// https://github.com/iancoleman/bip39/issues/19
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    var expected = "xprv9s21ZrQH143K3isaZsWbKVoTtbvd34Y1ZGRugGdMeBGbM3AgBVzTH159mj1cbbtYSJtQr65w6L5xy5L9SFC7c9VJZWHxgAzpj4mun5LhrbC";
+    page.evaluate(function() {
+        var doubleSpace = "  ";
+        $(".phrase").val("urge cat" + doubleSpace + "bid");
+        $(".phrase").trigger("input");
+    });
+    waitForGenerate(function() {
+        // Check the bip32 root key is correct
+        var actual = page.evaluate(function() {
+            return $(".root-key").val();
+        });
+        if (actual != expected) {
+            console.log("Mnemonic is sensitive to whitespace");
+            console.log("Expected: " + expected);
+            console.log("Actual: " + actual);
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Github Issue 23: Part 1: Use correct derivation path when changing tabs
+// https://github.com/iancoleman/bip39/issues/23
+function() {
+page.open(url, function(status) {
+    // 1) and 2) set the phrase
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability").trigger("input");
+    });
+    waitForGenerate(function() {
+        // 3) select bip32 tab
+        page.evaluate(function() {
+            $("#bip32-tab a").click();
+        });
+        waitForGenerate(function() {
+            // 4) switch from bitcoin to litecoin
+            page.evaluate(function() {
+                $(".network").val("2").trigger("change");
+            });
+            waitForGenerate(function() {
+                // 5) Check derivation path is displayed correctly
+                var expected = "m/0/0";
+                var actual = page.evaluate(function() {
+                    return $(".index:first").text();
+                });
+                if (actual != expected) {
+                    console.log("Github Issue 23 Part 1: derivation path display error");
+                    console.log("Expected: " + expected);
+                    console.log("Actual: " + actual);
+                    fail();
+                }
+                // 5) Check address is displayed correctly
+                var expected = "LS8MP5LZ5AdzSZveRrjm3aYVoPgnfFh5T5";
+                var actual = page.evaluate(function() {
+                    return $(".address:first").text();
+                });
+                if (actual != expected) {
+                    console.log("Github Issue 23 Part 1: address display error");
+                    console.log("Expected: " + expected);
+                    console.log("Actual: " + actual);
+                    fail();
+                }
+                next();
+            });
+        });
+    });
+});
+},
+
+// Github Issue 23 Part 2: Coin selection in derivation path
+// https://github.com/iancoleman/bip39/issues/23#issuecomment-238011920
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability").trigger("input");
+    });
+    waitForGenerate(function() {
+        // switch from bitcoin to clam
+        page.evaluate(function() {
+            $(".network").val("9").trigger("change");
+        });
+        waitForGenerate(function() {
+            // check derivation path is displayed correctly
+            var expected = "m/44'/23'/0'/0/0";
+            var actual = page.evaluate(function() {
+                return $(".index:first").text();
+            });
+            if (actual != expected) {
+                console.log("Github Issue 23 Part 2: Coin in BIP44 derivation path is incorrect");
+                console.log("Expected: " + expected);
+                console.log("Actual: " + actual);
+                fail();
+            }
+            next();
+        });
+    });
+});
+},
+
+// Github Issue 26: When using a Root key derrived altcoins are incorrect
+// https://github.com/iancoleman/bip39/issues/26
+function() {
+page.open(url, function(status) {
+    // 1) 2) and 3) set the root key
+    page.evaluate(function() {
+        $(".root-key").val("xprv9s21ZrQH143K2jkGDCeTLgRewT9F2pH5JZs2zDmmjXes34geVnFiuNa8KTvY5WoYvdn4Ag6oYRoB6cXtc43NgJAEqDXf51xPm6fhiMCKwpi").trigger("input");
+    });
+    waitForGenerate(function() {
+        // 4) switch from bitcoin to viacoin
+        page.evaluate(function() {
+            $(".network").val("6").trigger("change");
+        });
+        waitForGenerate(function() {
+            // 5) ensure the derived address is correct
+            var expected = "Vq9Eq4N5SQnjqZvxtxzo7hZPW5XnyJsmXT";
+            var actual = page.evaluate(function() {
+                return $(".address:first").text();
+            });
+            if (actual != expected) {
+                console.log("Github Issue 26: address is incorrect when changing networks and using root-key to derive");
+                console.log("Expected: " + expected);
+                console.log("Actual: " + actual);
+                fail();
+            }
+            next();
+        });
+    });
+});
+},
+
+// Selecting a language with no existing phrase should generate a phrase in
+// that language.
+function() {
+page.open(url, function(status) {
+    // Select a language
+    // Need to manually simulate hash being set due to quirk between
+    // 'click' event triggered by javascript vs triggered by mouse.
+    // Perhaps look into page.sendEvent
+    // http://phantomjs.org/api/webpage/method/send-event.html
+    page.evaluate(function() {
+        window.location.hash = "#japanese";
+        $("a[href='#japanese']").trigger("click");
+    });
+    waitForGenerate(function() {
+        // Check the mnemonic is in Japanese
+        var phrase = page.evaluate(function() {
+            return $(".phrase").val();
+        });
+        if (phrase.length <= 0) {
+            console.log("No Japanese phrase generated");
+            fail();
+        }
+        if (phrase.charCodeAt(0) < 128) {
+            console.log("First character of Japanese phrase is ascii");
+            console.log("Phrase: " + phrase);
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Selecting a language with existing phrase should update the phrase to use
+// that language.
+function() {
+page.open(url, function(status) {
+    // Set the phrase to an English phrase.
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability").trigger("input");
+    });
+    waitForGenerate(function() {
+        // Change to Italian
+        // Need to manually simulate hash being set due to quirk between
+        // 'click' event triggered by javascript vs triggered by mouse.
+        // Perhaps look into page.sendEvent
+        // http://phantomjs.org/api/webpage/method/send-event.html
+        page.evaluate(function() {
+            window.location.hash = "#italian";
+            $("a[href='#italian']").trigger("click");
+        });
+        waitForGenerate(function() {
+            // Check only the language changes, not the phrase
+            var expected = "abaco abaco abbaglio";
+            var actual = page.evaluate(function() {
+                return $(".phrase").val();
+            });
+            if (actual != expected) {
+                console.log("Changing language with existing phrase");
+                console.log("Expected: " + expected);
+                console.log("Actual: " + actual);
+                fail();
+            }
+            // Check the address is correct
+            var expected = "1Dz5TgDhdki9spa6xbPFbBqv5sjMrx3xgV";
+            var actual = page.evaluate(function() {
+                return $(".address:first").text();
+            });
+            if (actual != expected) {
+                console.log("Changing language generates incorrect address");
+                console.log("Expected: " + expected);
+                console.log("Actual: " + actual);
+                fail();
+            }
+            next();
+        });
+    });
+});
+},
+
+// Suggested replacement for erroneous word in non-English language
+function() {
+page.open(url, function(status) {
+    // Set an incorrect phrase in Italian
+    page.evaluate(function() {
+        $(".phrase").val("abaco abaco zbbaglio").trigger("input");
+    });
+    waitForFeedback(function() {
+        // Check the suggestion is correct
+        var feedback = page.evaluate(function() {
+            return $(".feedback").text();
+        });
+        if (feedback.indexOf("did you mean abbaglio?") < 0) {
+            console.log("Incorrect Italian word does not show suggested replacement");
+            console.log("Error: " + error);
+            fail();
+        }
+        next();
+    });
+});
+},
+
+
+// Japanese word does not break across lines.
+// Point 2 from
+// https://github.com/bitcoin/bips/blob/master/bip-0039/bip-0039-wordlists.md#japanese
+function() {
+page.open(url, function(status) {
+    hasWordBreakCss = page.content.indexOf("word-break: keep-all;") > -1;
+    if (!hasWordBreakCss) {
+        console.log("Japanese words can break across lines mid-word");
+        console.log("Check CSS for '.phrase { word-break: keep-all; }'");
+        fail();
+    }
+    // Run the next test
+    next();
+});
+},
+
+// Language can be specified at page load using hash value in url
+function() {
+page.open(url, function(status) {
+    // Set the page hash as if it were on a fresh page load
+    page.evaluate(function() {
+        window.location.hash = "#japanese";
+    });
+    // Generate a random phrase
+    page.evaluate(function() {
+        $(".generate").trigger("click");
+    });
+    waitForGenerate(function() {
+        // Check the phrase is in Japanese
+        var phrase = page.evaluate(function() {
+            return $(".phrase").val();
+        });
+        if (phrase.length <= 0) {
+            console.log("No phrase generated using url hash");
+            fail();
+        }
+        if (phrase.charCodeAt(0) < 128) {
+            console.log("Language not detected from url hash on page load.");
+            console.log("Phrase: " + phrase);
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Entropy unit tests
+function() {
+page.open(url, function(status) {
+    var response = page.evaluate(function() {
+        var e;
+        // binary entropy is detected
+        try {
+            e = Entropy.fromString("01010101");
+            if (e.base.str != "binary") {
+                return "Binary entropy not detected correctly";
+            }
+        }
+        catch (e) {
+            return e.message;
+        }
+        // base6 entropy is detected
+        try {
+            e = Entropy.fromString("012345012345");
+            if (e.base.str != "base 6") {
+                return "base6 entropy not detected correctly";
+            }
+        }
+        catch (e) {
+            return e.message;
+        }
+        // dice entropy is detected
+        try {
+            e = Entropy.fromString("123456123456");
+            if (e.base.str != "base 6 (dice)") {
+                return "dice entropy not detected correctly";
+            }
+        }
+        catch (e) {
+            return e.message;
+        }
+        // base10 entropy is detected
+        try {
+            e = Entropy.fromString("0123456789");
+            if (e.base.str != "base 10") {
+                return "base10 entropy not detected correctly";
+            }
+        }
+        catch (e) {
+            return e.message;
+        }
+        // hex entropy is detected
+        try {
+            e = Entropy.fromString("0123456789ABCDEF");
+            if (e.base.str != "hexadecimal") {
+                return "hexadecimal entropy not detected correctly";
+            }
+        }
+        catch (e) {
+            return e.message;
+        }
+        // card entropy is detected
+        try {
+            e = Entropy.fromString("AC4DTHKS");
+            if (e.base.str != "card") {
+                return "card entropy not detected correctly";
+            }
+        }
+        catch (e) {
+            return e.message;
+        }
+        // entropy is case insensitive
+        try {
+            e = Entropy.fromString("aBcDeF");
+            if (e.cleanStr != "aBcDeF") {
+                return "Entropy should not be case sensitive";
+            }
+        }
+        catch (e) {
+            return e.message;
+        }
+        // dice entropy is converted to base6
+        try {
+            e = Entropy.fromString("123456");
+            if (e.cleanStr != "123450") {
+                return "Dice entropy is not automatically converted to base6";
+            }
+        }
+        catch (e) {
+            return e.message;
+        }
+        // dice entropy is preferred to base6 if ambiguous
+        try {
+            e = Entropy.fromString("12345");
+            if (e.base.str != "base 6 (dice)") {
+                return "dice not used as default over base 6";
+            }
+        }
+        catch (e) {
+            return e.message;
+        }
+        // unused characters are ignored
+        try {
+            e = Entropy.fromString("fghijkl");
+            if (e.cleanStr != "f") {
+                return "additional characters are not ignored";
+            }
+        }
+        catch (e) {
+            return e.message;
+        }
+        // the lowest base is used by default
+        // 7 could be decimal or hexadecimal, but should be detected as decimal
+        try {
+            e = Entropy.fromString("7");
+            if (e.base.str != "base 10") {
+                return "lowest base is not used";
+            }
+        }
+        catch (e) {
+            return e.message;
+        }
+        // Leading zeros are retained
+        try {
+            e = Entropy.fromString("000A");
+            if (e.cleanStr != "000A") {
+                return "Leading zeros are not retained";
+            }
+        }
+        catch (e) {
+            return e.message;
+        }
+        // Leading zeros are correctly preserved for hex in binary string
+        try {
+            e = Entropy.fromString("2A");
+            if (e.binaryStr != "00101010") {
+                return "Hex leading zeros are not correct in binary";
+            }
+        }
+        catch (e) {
+            return e.message;
+        }
+        // Leading zeros for base 6 as binary string
+        // 20 = 2 events at 2.58 bits per event = 5 bits
+        // 20 in base 6 = 12 in base 10 = 1100 in base 2
+        // so it needs 1 bit of padding to be the right bit length
+        try {
+            e = Entropy.fromString("20");
+            if (e.binaryStr != "01100") {
+                return "Base 6 as binary has leading zeros";
+            }
+        }
+        catch (e) {
+            return e.message;
+        }
+        // Leading zeros for base 10 as binary string
+        try {
+            e = Entropy.fromString("17");
+            if (e.binaryStr != "010001") {
+                return "Base 10 as binary has leading zeros";
+            }
+        }
+        catch (e) {
+            return e.message;
+        }
+        // Leading zeros for card entropy as binary string
+        try {
+            e = Entropy.fromString("2c");
+            if (e.binaryStr != "00001") {
+                return "Card entropy as binary has leading zeros";
+            }
+        }
+        catch (e) {
+            return e.message;
+        }
+        // Keyboard mashing results in weak entropy
+        // Despite being a long string, it's less than 30 bits of entropy
+        try {
+            e = Entropy.fromString("aj;se ifj; ask,dfv js;ifj");
+            if (e.binaryStr.length >= 30) {
+                return "Keyboard mashing should produce weak entropy";
+            }
+        }
+        catch (e) {
+            return e.message;
+        }
+        // Card entropy is used if every pair could be a card
+        try {
+            e = Entropy.fromString("4c3c2c");
+            if (e.base.str != "card") {
+                return "Card entropy not used if all pairs are cards";
+            }
+        }
+        catch (e) {
+            return e.message;
+        }
+        // Card entropy uses base 52
+        // [ cards, binary ]
+        try {
+            var cards = [
+                [ "ac", "00000" ],
+                [ "acac", "00000000000" ],
+                [ "acac2c", "00000000000000001" ],
+                [ "acks", "00000110011" ],
+                [ "acacks", "00000000000110011" ],
+                [ "2c", "00001" ],
+                [ "3d", "01111" ],
+                [ "4h", "11101" ],
+                [ "5s", "101011" ],
+                [ "6c", "00101" ],
+                [ "7d", "10011" ],
+                [ "8h", "100001" ],
+                [ "9s", "101111" ],
+                [ "tc", "01001" ],
+                [ "jd", "10111" ],
+                [ "qh", "100101" ],
+                [ "ks", "110011" ],
+                [ "ks2c", "101001011101" ],
+                [ "KS2C", "101001011101" ],
+            ];
+            for (var i=0; i<cards.length; i++) {
+                var card = cards[i][0];
+                var result = cards[i][1];
+                e = Entropy.fromString(card);
+                console.log(e.binary + " " + result);
+                if (e.binaryStr !== result) {
+                    return "card entropy not parsed correctly: " + result + " != " + e.binaryStr;
+                }
+            }
+        }
+        catch (e) {
+            return e.message;
+        }
+        return "PASS";
+    });
+    if (response != "PASS") {
+        console.log("Entropy unit tests");
+        console.log(response);
+        fail();
+    };
+    next();
+});
+},
+
+// Entropy can be entered by the user
+function() {
+page.open(url, function(status) {
+    expected = {
+        mnemonic: "abandon abandon ability",
+        address: "1Di3Vp7tBWtyQaDABLAjfWtF6V7hYKJtug",
+    }
+    // use entropy
+    page.evaluate(function() {
+        $(".use-entropy").prop("checked", true).trigger("change");
+        $(".entropy").val("00000000 00000000 00000000 00000000").trigger("input");
+    });
+    // check the mnemonic is set and address is correct
+    waitForGenerate(function() {
+        var actual = page.evaluate(function() {
+            return {
+                address: $(".address:first").text(),
+                mnemonic: $(".phrase").val(),
+            }
+        });
+        if (actual.mnemonic != expected.mnemonic) {
+            console.log("Entropy does not generate correct mnemonic");
+            console.log("Expected: " + expected.mnemonic);
+            console.log("Got: " + actual.mnemonic);
+            fail();
+        }
+        if (actual.address != expected.address) {
+            console.log("Entropy does not generate correct address");
+            console.log("Expected: " + expected.address);
+            console.log("Got: " + actual.address);
+            fail();
+        }
+        next();
+    });
+});
+},
 
-// Incorrect mnemonic shows error
-// Incorrect word shows suggested replacement
-// Incorrect BIP32 root key shows error
-// Derivation path not starting with m shows error
-// Derivation path containing invalid characters shows useful error
+// A warning about entropy is shown to the user, with additional information
+function() {
+page.open(url, function(status) {
+    // get text content from entropy sections of page
+    var hasWarning = page.evaluate(function() {
+        var entropyText = $(".entropy-container").text();
+        var warning = "mnemonic may be insecure";
+        if (entropyText.indexOf(warning) == -1) {
+            return false;
+        }
+        var readMoreText = $("#entropy-notes").parent().text();
+        var goodSources = "flipping a fair coin, rolling a fair dice, noise measurements etc";
+        if (readMoreText.indexOf(goodSources) == -1) {
+            return false;
+        }
+        return true;
+    });
+    // check the warnings and information are shown
+    if (!hasWarning) {
+        console.log("Page does not contain warning about using own entropy");
+        fail();
+    }
+    next();
+});
+},
 
-// Github Issue 11: Default word length is 15
-// https://github.com/dcpos/bip39/issues/11
+// The types of entropy available are described to the user
+function() {
+page.open(url, function(status) {
+    // get placeholder text for entropy field
+    var placeholder = page.evaluate(function() {
+        return $(".entropy").attr("placeholder");
+    });
+    var options = [
+        "binary",
+        "base 6",
+        "dice",
+        "base 10",
+        "hexadecimal",
+        "cards",
+    ];
+    for (var i=0; i<options.length; i++) {
+        var option = options[i];
+        if (placeholder.indexOf(option) == -1) {
+            console.log("Available entropy type is not shown to user: " + option);
+            fail();
+        }
+    }
+    next();
+});
+},
 
-// Github Issue 12: Generate more rows with private keys hidden
-// https://github.com/dcpos/bip39/issues/12
+// The actual entropy used is shown to the user
+function() {
+page.open(url, function(status) {
+    // use entropy
+    var badEntropySource = page.evaluate(function() {
+        var entropy = "Not A Very Good Entropy Source At All";
+        $(".use-entropy").prop("checked", true).trigger("change");
+        $(".entropy").val(entropy).trigger("input");
+    });
+    // check the actual entropy being used is shown
+    waitForEntropyFeedback(function() {
+        var expectedText = "AedEceAA";
+        var entropyText = page.evaluate(function() {
+            return $(".entropy-container").text();
+        });
+        if (entropyText.indexOf(expectedText) == -1) {
+            console.log("Actual entropy used is not shown");
+            fail();
+        }
+        next();
+    });
+});
+},
 
-// Github Issue 19: Mnemonic is not sensitive to whitespace
-// https://github.com/dcpos/bip39/issues/19
+// Binary entropy can be entered
+function() {
+page.open(url, function(status) {
+    // use entropy
+    page.evaluate(function() {
+        $(".use-entropy").prop("checked", true).trigger("change");
+        $(".entropy").val("01").trigger("input");
+    });
+    // check the entropy is shown to be the correct type
+    waitForEntropyFeedback(function() {
+        var entropyText = page.evaluate(function() {
+            return $(".entropy-container").text();
+        });
+        if (entropyText.indexOf("binary") == -1) {
+            console.log("Binary entropy is not detected and presented to user");
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Base 6 entropy can be entered
+function() {
+page.open(url, function(status) {
+    // use entropy
+    page.evaluate(function() {
+        $(".use-entropy").prop("checked", true).trigger("change");
+        $(".entropy").val("012345").trigger("input");
+    });
+    // check the entropy is shown to be the correct type
+    waitForEntropyFeedback(function() {
+        var entropyText = page.evaluate(function() {
+            return $(".entropy-container").text();
+        });
+        if (entropyText.indexOf("base 6") == -1) {
+            console.log("Base 6 entropy is not detected and presented to user");
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Base 6 dice entropy can be entered
+function() {
+page.open(url, function(status) {
+    // use entropy
+    page.evaluate(function() {
+        $(".use-entropy").prop("checked", true).trigger("change");
+        $(".entropy").val("123456").trigger("input");
+    });
+    // check the entropy is shown to be the correct type
+    waitForEntropyFeedback(function() {
+        var entropyText = page.evaluate(function() {
+            return $(".entropy-container").text();
+        });
+        if (entropyText.indexOf("dice") == -1) {
+            console.log("Dice entropy is not detected and presented to user");
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Base 10 entropy can be entered
+function() {
+page.open(url, function(status) {
+    // use entropy
+    page.evaluate(function() {
+        $(".use-entropy").prop("checked", true).trigger("change");
+        $(".entropy").val("789").trigger("input");
+    });
+    // check the entropy is shown to be the correct type
+    waitForEntropyFeedback(function() {
+        var entropyText = page.evaluate(function() {
+            return $(".entropy-container").text();
+        });
+        if (entropyText.indexOf("base 10") == -1) {
+            console.log("Base 10 entropy is not detected and presented to user");
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Hexadecimal entropy can be entered
+function() {
+page.open(url, function(status) {
+    // use entropy
+    page.evaluate(function() {
+        $(".use-entropy").prop("checked", true).trigger("change");
+        $(".entropy").val("abcdef").trigger("input");
+    });
+    // check the entropy is shown to be the correct type
+    waitForEntropyFeedback(function() {
+        var entropyText = page.evaluate(function() {
+            return $(".entropy-container").text();
+        });
+        if (entropyText.indexOf("hexadecimal") == -1) {
+            console.log("Hexadecimal entropy is not detected and presented to user");
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Dice entropy value is shown as the converted base 6 value
+function() {
+page.open(url, function(status) {
+    // use entropy
+    page.evaluate(function() {
+        $(".use-entropy").prop("checked", true).trigger("change");
+        $(".entropy").val("123456").trigger("input");
+    });
+    // check the entropy is shown as base 6, not as the original dice value
+    waitForEntropyFeedback(function() {
+        var entropyText = page.evaluate(function() {
+            return $(".entropy-container").text();
+        });
+        if (entropyText.indexOf("123450") == -1) {
+            console.log("Dice entropy is not shown to user as base 6 value");
+            fail();
+        }
+        if (entropyText.indexOf("123456") > -1) {
+            console.log("Dice entropy value is shown instead of true base 6 value");
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// The number of bits of entropy accumulated is shown
+function() {
+page.open(url, function(status) {
+    //[ entropy, bits ]
+    var tests = [
+        [ "0000 0000 0000 0000 0000", "20" ],
+        [ "0", "1" ],
+        [ "0000", "4" ],
+        [ "6", "2" ], // 6 in card is 0 in base 6, 0 in base 6 is 2.6 bits (rounded down to 2 bits)
+        [ "7", "3" ], // 7 in base 10 is 111 in base 2, no leading zeros
+        [ "8", "4" ],
+        [ "F", "4" ],
+        [ "29", "6" ],
+        [ "0A", "8" ],
+        [ "1A", "8" ], // hex is always multiple of 4 bits of entropy
+        [ "2A", "8" ],
+        [ "4A", "8" ],
+        [ "8A", "8" ],
+        [ "FA", "8" ],
+        [ "000A", "16" ],
+        [ "5555", "11" ],
+        [ "6666", "10" ], // uses dice, so entropy is actually 0000 in base 6, which is 4 lots of 2.58 bits, which is 10.32 bits (rounded down to 10 bits)
+        [ "2227", "13" ], // Uses base 10, which is 4 lots of 3.32 bits, which is 13.3 bits (rounded down to 13)
+        [ "222F", "16" ],
+        [ "FFFF", "16" ],
+        [ "0000101017", "33" ], // 10 events at 3.32 bits per event
+        [ "ac2c3c4c5c6c7c8c9ctcjcqckcad2d3d4d5d6d7d8d9dtdjdqdkdah2h3h4h5h6h7h8h9hthjhqhkhas2s3s4s5s6s7s8s9stsjsqsks", "226" ], // cards are not replaced, so a full deck is not 52^52 entropy which is 296 bits, it's 52!, which is 226 bits
+    ]
+    // use entropy
+    page.evaluate(function(e) {
+        $(".use-entropy").prop("checked", true).trigger("change");
+    });
+    // Run each test
+    var nextTest = function runNextTest(i) {
+        var entropy = tests[i][0];
+        var expected = tests[i][1];
+        // set entropy
+        page.evaluate(function(e) {
+            $(".entropy").val(e).trigger("input");
+        }, entropy);
+        // check the number of bits of entropy is shown
+        waitForEntropyFeedback(function() {
+            var entropyText = page.evaluate(function() {
+                return $(".entropy-container").text();
+            });
+            if (entropyText.replace(/\s/g,"").indexOf("Bits" + expected) == -1) {
+                console.log("Accumulated entropy is not shown correctly for " + entropy);
+                fail();
+            }
+            var isLastTest = i == tests.length - 1;
+            if (isLastTest) {
+                next();
+            }
+            else {
+                runNextTest(i+1);
+            }
+        });
+    }
+    nextTest(0);
+});
+},
+
+// There is feedback provided about the supplied entropy
+function() {
+page.open(url, function(status) {
+    var tests = [
+        {
+            entropy: "A",
+            filtered: "A",
+            type: "hexadecimal",
+            events: 1,
+            bits: 4,
+            words: 0,
+            strength: "extremely weak",
+        },
+        {
+            entropy: "AAAAAAAA",
+            filtered: "AAAAAAAA",
+            type: "hexadecimal",
+            events: 8,
+            bits: 32,
+            words: 3,
+            strength: "extremely weak",
+        },
+        {
+            entropy: "AAAAAAAA B",
+            filtered: "AAAAAAAAB",
+            type: "hexadecimal",
+            events: 9,
+            bits: 36,
+            words: 3,
+            strength: "extremely weak",
+        },
+        {
+            entropy: "AAAAAAAA BBBBBBBB",
+            filtered: "AAAAAAAABBBBBBBB",
+            type: "hexadecimal",
+            events: 16,
+            bits: 64,
+            words: 6,
+            strength: "very weak",
+        },
+        {
+            entropy: "AAAAAAAA BBBBBBBB CCCCCCCC",
+            filtered: "AAAAAAAABBBBBBBBCCCCCCCC",
+            type: "hexadecimal",
+            events: 24,
+            bits: 96,
+            words: 9,
+            strength: "weak",
+        },
+        {
+            entropy: "AAAAAAAA BBBBBBBB CCCCCCCC DDDDDDDD",
+            filtered: "AAAAAAAABBBBBBBBCCCCCCCCDDDDDDDD",
+            type: "hexadecimal",
+            events: 32,
+            bits: 128,
+            words: 12,
+            strength: "easily cracked",
+        },
+        {
+            entropy: "AAAAAAAA BBBBBBBB CCCCCCCC DDDDDDDA",
+            filtered: "AAAAAAAABBBBBBBBCCCCCCCCDDDDDDDA",
+            type: "hexadecimal",
+            events: 32,
+            bits: 128,
+            words: 12,
+            strength: "strong",
+        },
+        {
+            entropy: "AAAAAAAA BBBBBBBB CCCCCCCC DDDDDDDA EEEEEEEE",
+            filtered: "AAAAAAAABBBBBBBBCCCCCCCCDDDDDDDAEEEEEEEE",
+            type: "hexadecimal",
+            events: 40,
+            bits: 160,
+            words: 15,
+            strength: "very strong",
+        },
+        {
+            entropy: "AAAAAAAA BBBBBBBB CCCCCCCC DDDDDDDA EEEEEEEE FFFFFFFF",
+            filtered: "AAAAAAAABBBBBBBBCCCCCCCCDDDDDDDAEEEEEEEEFFFFFFFF",
+            type: "hexadecimal",
+            events: 48,
+            bits: 192,
+            words: 18,
+            strength: "extremely strong",
+        },
+        {
+            entropy: "7d",
+            type: "card",
+            events: 1,
+            bits: 5,
+            words: 0,
+            strength: "extremely weak",
+        },
+        {
+            entropy: "ac2c3c4c5c6c7c8c9ctcjcqckcad2d3d4d5d6d7d8d9dtdjdqdkdah2h3h4h5h6h7h8h9hthjhqhkhas2s3s4s5s6s7s8s9stsjsqsks",
+            type: "card (full deck)",
+            events: 52,
+            bits: 226,
+            words: 27,
+            strength: "extremely strong",
+        },
+        {
+            entropy: "ac2c3c4c5c6c7c8c9ctcjcqckcad2d3d4d5d6d7d8d9dtdjdqdkdah2h3h4h5h6h7h8h9hthjhqhkhas2s3s4s5s6s7s8s9stsjsqsks3d",
+            type: "card (full deck, 1 duplicate: 3d)",
+            events: 53,
+            bits: 226,
+            words: 27,
+            strength: "extremely strong",
+        },
+        {
+            entropy: "ac2c3c4c5c6c7c8c9ctcjcqckcad2d3d4d5d6d7d8d9dtdjdqdkdah2h3h4h5h6h7h8h9hthjhqhkhas2s3s4s5s6s7s8s9stsjsqs3d4d",
+            type: "card (2 duplicates: 3d 4d)",
+            events: 53,
+            bits: 226,
+            words: 27,
+            strength: "extremely strong",
+        },
+        {
+            entropy: "ac2c3c4c5c6c7c8c9ctcjcqckcad2d3d4d5d6d7d8d9dtdjdqdkdah2h3h4h5h6h7h8h9hthjhqhkhas2s3s4s5s6s7s8s9stsjsqs3d4d5d6d",
+            type: "card (4 duplicates: 3d 4d 5d...)",
+            events: 53,
+            bits: 226,
+            words: 27,
+            strength: "extremely strong",
+        },
+        // Next test was throwing uncaught error in zxcvbn
+        {
+            entropy: "ac2c3c4c5c6c7c8c9ctcjcqckcad2d3d4d5d6d7d8d9dtdjdqdkdah2h3h4h5h6h7h8h9hthjhqhkhas2s3s4s5s6s7s8s9stsjsqsksac2c3c4c5c6c7c8c9ctcjcqckcad2d3d4d5d6d7d8d9dtdjdqdkdah2h3h4h5h6h7h8h9hthjhqhkhas2s3s4s5s6s7s8s9stsjsqsks",
+            type: "card (full deck, 52 duplicates: ac 2c 3c...)",
+            events: 104,
+            bits: 226,
+            words: 54,
+            strength: "extremely strong",
+        },
+    ];
+    // use entropy
+    page.evaluate(function() {
+        $(".use-entropy").prop("checked", true).trigger("change");
+    });
+    var nextTest = function runNextTest(i) {
+        function getFeedbackError(expected, actual) {
+            if ("filtered" in expected && actual.indexOf(expected.filtered) == -1) {
+                return "Filtered value not in feedback";
+            }
+            if (actual.indexOf(expected.type) == -1) {
+                return "Entropy type not in feedback";
+            }
+            if (actual.indexOf(expected.events) == -1) {
+                return "Event count not in feedback";
+            }
+            if (actual.indexOf(expected.bits) == -1) {
+                return "Bit count not in feedback";
+            }
+            if (actual.indexOf(expected.strength) == -1) {
+                return "Strength not in feedback";
+            }
+            return false;
+        }
+        test = tests[i];
+        page.evaluate(function(e) {
+            $(".addresses").empty();
+            $(".phrase").val("");
+            $(".entropy").val(e).trigger("input");
+        }, test.entropy);
+        waitForEntropyFeedback(function() {
+            var mnemonic = page.evaluate(function() {
+                return $(".phrase").val();
+            });
+            // Check mnemonic length
+            if (test.words == 0) {
+                if (mnemonic.length > 0) {
+                    console.log("Mnemonic length for " + test.strength + " strength is not " + test.words);
+                    console.log("Mnemonic: " + mnemonic);
+                    fail();
+                }
+            }
+            else {
+                if (mnemonic.split(" ").length != test.words) {
+                    console.log("Mnemonic length for " + test.strength + " strength is not " + test.words);
+                    console.log("Mnemonic: " + mnemonic);
+                    fail();
+                }
+            }
+            // check feedback
+            var feedback = page.evaluate(function() {
+                return $(".entropy-container").text();
+            });
+            var feedbackError = getFeedbackError(test, feedback);
+            if (feedbackError) {
+                console.log("Entropy feedback for " + test.entropy + " returned error");
+                console.log(feedbackError);
+                fail();
+            }
+            // Run next test
+            var isLastTest = i == tests.length - 1;
+            if (isLastTest) {
+                next();
+            }
+            else {
+                runNextTest(i+1);
+            }
+        });
+    }
+    nextTest(0);
+});
+},
+
+// Entropy is truncated from the left
+function() {
+page.open(url, function(status) {
+    var expected = "avocado zoo zone";
+    // use entropy
+    page.evaluate(function() {
+        $(".use-entropy").prop("checked", true).trigger("change");
+        var entropy  = "00000000 00000000 00000000 00000000";
+            entropy += "11111111 11111111 11111111 1111"; // Missing last byte
+        $(".entropy").val(entropy).trigger("input");
+    });
+    // check the entropy is truncated from the right
+    waitForGenerate(function() {
+        var actual = page.evaluate(function() {
+            return $(".phrase").val();
+        });
+        if (actual != expected) {
+            console.log("Entropy is not truncated from the right");
+            console.log("Expected: " + expected);
+            console.log("Got: " + actual);
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Very large entropy results in very long mnemonics
+function() {
+page.open(url, function(status) {
+    // use entropy
+    page.evaluate(function() {
+        $(".use-entropy").prop("checked", true).trigger("change");
+        var entropy  = "";
+        // Generate a very long entropy string
+        for (var i=0; i<33; i++) {
+            entropy += "AAAAAAAA"; // 3 words * 33 iterations = 99 words
+        }
+        $(".entropy").val(entropy).trigger("input");
+    });
+    // check the mnemonic is very long
+    waitForGenerate(function() {
+        var wordCount = page.evaluate(function() {
+            return $(".phrase").val().split(" ").length;
+        });
+        if (wordCount != 99) {
+            console.log("Large entropy does not generate long mnemonic");
+            console.log("Expected 99 words, got " + wordCount);
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Is compatible with bip32jp entropy
+// https://bip32jp.github.io/english/index.html
+// NOTES:
+// Is incompatible with:
+//     base 20
+function() {
+page.open(url, function(status) {
+    var expected = "train then jungle barely whip fiber purpose puppy eagle cloud clump hospital robot brave balcony utility detect estate old green desk skill multiply virus";
+    // use entropy
+    page.evaluate(function() {
+        $(".use-entropy").prop("checked", true).trigger("change");
+        var entropy  = "543210543210543210543210543210543210543210543210543210543210543210543210543210543210543210543210543";
+        $(".entropy").val(entropy).trigger("input");
+    });
+    // check the mnemonic matches the expected value from bip32jp
+    waitForGenerate(function() {
+        var actual = page.evaluate(function() {
+            return $(".phrase").val();
+        });
+        if (actual != expected) {
+            console.log("Mnemonic does not match bip32jp for base 6 entropy");
+            console.log("Expected: " + expected);
+            console.log("Got: " + actual);
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Blank entropy does not generate mnemonic or addresses
+function() {
+page.open(url, function(status) {
+    // use entropy
+    page.evaluate(function() {
+        $(".use-entropy").prop("checked", true).trigger("change");
+        $(".entropy").val("").trigger("input");
+    });
+    waitForFeedback(function() {
+        // check there is no mnemonic
+        var phrase = page.evaluate(function() {
+            return $(".phrase").val();
+        });
+        if (phrase != "") {
+            console.log("Blank entropy does not result in blank mnemonic");
+            console.log("Got: " + phrase);
+            fail();
+        }
+        // check there are no addresses displayed
+        var addresses = page.evaluate(function() {
+            return $(".address").length;
+        });
+        if (addresses != 0) {
+            console.log("Blank entropy does not result in zero addresses");
+            fail();
+        }
+        // Check the feedback says 'blank entropy'
+        var feedback = page.evaluate(function() {
+            return $(".feedback").text();
+        });
+        if (feedback != "Blank entropy") {
+            console.log("Blank entropy does not show feedback message");
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Mnemonic length can be selected even for weak entropy
+function() {
+page.open(url, function(status) {
+    // use entropy
+    page.evaluate(function() {
+        $(".use-entropy").prop("checked", true).trigger("change");
+        $(".entropy").val("012345");
+        $(".mnemonic-length").val("18").trigger("change");
+    });
+    // check the mnemonic is the correct length
+    waitForGenerate(function() {
+        var phrase = page.evaluate(function() {
+            return $(".phrase").val();
+        });
+        var numberOfWords = phrase.split(/\s/g).length;
+        if (numberOfWords != 18) {
+            console.log("Weak entropy cannot be overridden to give 18 word mnemonic");
+            console.log(phrase);
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// If you wish to add more tests, do so here...
+
+// Here is a blank test template
+/*
+
+function() {
+page.open(url, function(status) {
+    // Do something on the page
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability").trigger("input");
+    });
+    waitForGenerate(function() {
+        // Check the result of doing the thing
+        var expected = "1Di3Vp7tBWtyQaDABLAjfWtF6V7hYKJtug";
+        var actual = page.evaluate(function() {
+            return $(".address:first").text();
+        });
+        if (actual != expected) {
+            console.log("A specific message about what failed");
+            console.log("Expected: " + expected);
+            console.log("Actual: " + actual);
+            fail();
+        }
+        // Run the next test
+        next();
+    });
+});
+},
 
-// Github Issue 23: Use correct derivation path when changing tabs
-// https://github.com/dcpos/bip39/issues/23
+*/
 
 ];
 
 console.log("Running tests...");
+tests = shuffle(tests);
 next();