]> git.immae.eu Git - perso/Immae/Projets/Cryptomonnaies/BIP39.git/blobdiff - tests.js
Ethereum addresses include checksum
[perso/Immae/Projets/Cryptomonnaies/BIP39.git] / tests.js
index a0de5febd8ee3ceb56165b11226d8b10898cfceb..89f4ce367462fdf27dcff025ebebcec295ddc887 100644 (file)
--- a/tests.js
+++ b/tests.js
@@ -4,7 +4,12 @@
 
 var page = require('webpage').create();
 var url = 'src/index.html';
-var testMaxTime = 10000;
+var testMaxTime = 20000;
+
+page.viewportSize = {
+    width: 1024,
+    height: 720
+};
 
 page.onResourceError = function(e) {
     console.log("Error loading " + e.url);
@@ -602,6 +607,66 @@ page.open(url, function(status) {
 });
 },
 
+// Network can be set to ethereum
+function() {
+
+page.open(url, function(status) {
+
+    // set the phrase and coin
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+        $(".network option[selected]").removeAttr("selected");
+        $(".network option[value=13]").prop("selected", true);
+        $(".network").trigger("change");
+    });
+    waitForGenerate(function() {
+        // check the address is generated correctly
+        // this value comes from
+        // https://www.myetherwallet.com/#view-wallet-info
+        // Unusual capitalization is due to checksum
+        var expected = "0xe5815d5902Ad612d49283DEdEc02100Bd44C2772";
+        var actual = page.evaluate(function() {
+            return $(".address:first").text();
+        });
+        if (actual != expected) {
+            console.log("Ethereum address is incorrect");
+            console.log("Expected: " + expected);
+            console.log("Actual: " + actual);
+            fail();
+        }
+        // check the private key is correct
+        // this private key can be imported into
+        // https://www.myetherwallet.com/#view-wallet-info
+        // and it should correlate to the address above
+        var expected = "8f253078b73d7498302bb78c171b23ce7a8fb511987d2b2702b731638a4a15e7";
+        var actual = page.evaluate(function() {
+            return $(".privkey:first").text();
+        });
+        if (actual != expected) {
+            console.log("Ethereum privkey is incorrect");
+            console.log("Expected: " + expected);
+            console.log("Actual: " + actual);
+            fail();
+        }
+        // check the public key is correct
+        // TODO
+        // don't have any third-party source to generate the expected value
+        //var expected = "?";
+        //var actual = page.evaluate(function() {
+        //    return $(".pubkey:first").text();
+        //});
+        //if (actual != expected) {
+        //    console.log("Ethereum privkey is incorrect");
+        //    console.log("Expected: " + expected);
+        //    console.log("Actual: " + actual);
+        //    fail();
+        //}
+        next();
+    });
+});
+},
+
 // BIP39 seed is set from phrase
 function() {
 page.open(url, function(status) {
@@ -1557,6 +1622,31 @@ page.open(url, function(status) {
 });
 },
 
+// Github pull request 48
+// First four letters of word shows that word, not closest
+// since first four letters gives unique word in BIP39 wordlist
+// eg ille should show illegal, not idle
+function() {
+page.open(url, function(status) {
+    // set the incomplete word
+    page.evaluate(function() {
+        $(".phrase").val("ille").trigger("input");
+    });
+    // check there is a suggestion shown
+    waitForFeedback(function() {
+        var feedback = page.evaluate(function() {
+            return $(".feedback").text();
+        });
+        if (feedback.indexOf("did you mean illegal?") < 0) {
+            console.log("Start of word does not show correct suggestion");
+            console.log("Error: " + error);
+            fail();
+        }
+        next();
+    });
+});
+},
+
 // Incorrect BIP32 root key shows error
 function() {
 page.open(url, function(status) {
@@ -2149,10 +2239,11 @@ page.open(url, function(status) {
         catch (e) {
             return e.message;
         }
-        // Leading zeros for card entropy as binary string
+        // Leading zeros for card entropy as binary string.
+        // Card entropy is hashed so 2c does not necessarily produce leading zeros.
         try {
             e = Entropy.fromString("2c");
-            if (e.binaryStr != "00001") {
+            if (e.binaryStr != "0010") {
                 return "Card entropy as binary has leading zeros";
             }
         }
@@ -2184,25 +2275,24 @@ page.open(url, function(status) {
         // [ 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" ],
+                [ "ac", "0101" ],
+                [ "acqs", "11011100" ],
+                [ "acks", "01011100" ],
+                [ "2cac", "11111000" ],
+                [ "2c", "0010" ],
+                [ "3d", "0001" ],
+                [ "4h", "1001" ],
+                [ "5s", "1001" ],
+                [ "6c", "0000" ],
+                [ "7d", "0001" ],
+                [ "8h", "1011" ],
+                [ "9s", "0010" ],
+                [ "tc", "1001" ],
+                [ "jd", "1111" ],
+                [ "qh", "0010" ],
+                [ "ks", "0101" ],
+                [ "ks2c", "01010100" ],
+                [ "KS2C", "01010100" ],
             ];
             for (var i=0; i<cards.length; i++) {
                 var card = cards[i][0];
@@ -2210,7 +2300,7 @@ page.open(url, function(status) {
                 e = Entropy.fromString(card);
                 console.log(e.binary + " " + result);
                 if (e.binaryStr !== result) {
-                    return "card entropy not parsed correctly: " + result + " != " + e.binaryStr;
+                    return "card entropy " + card + " not parsed correctly: " + result + " != " + e.binaryStr;
                 }
             }
         }
@@ -2503,7 +2593,7 @@ page.open(url, function(status) {
         [ "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
+        [ "ac2c3c4c5c6c7c8c9ctcjcqckcad2d3d4d5d6d7d8d9dtdjdqdkdah2h3h4h5h6h7h8h9hthjhqhkhas2s3s4s5s6s7s8s9stsjsqsks", "225" ], // cards are not replaced, so a full deck is not 52^52 entropy which is 296 bits, it's 52!, which is 225 bits
     ]
     // use entropy
     page.evaluate(function(e) {
@@ -2636,41 +2726,42 @@ page.open(url, function(status) {
             entropy: "ac2c3c4c5c6c7c8c9ctcjcqckcad2d3d4d5d6d7d8d9dtdjdqdkdah2h3h4h5h6h7h8h9hthjhqhkhas2s3s4s5s6s7s8s9stsjsqsks",
             type: "card (full deck)",
             events: 52,
-            bits: 226,
-            words: 27,
+            bits: 225,
+            words: 21,
             strength: "extremely strong",
         },
         {
             entropy: "ac2c3c4c5c6c7c8c9ctcjcqckcad2d3d4d5d6d7d8d9dtdjdqdkdah2h3h4h5h6h7h8h9hthjhqhkhas2s3s4s5s6s7s8s9stsjsqsks3d",
             type: "card (full deck, 1 duplicate: 3d)",
             events: 53,
-            bits: 232,
-            words: 27,
+            bits: 254,
+            words: 21,
             strength: "extremely strong",
         },
         {
             entropy: "ac2c3c4c5c6c7c8c9ctcjcqckcad2d3d4d5d6d7d8d9dtdjdqdkdah2h3h4h5h6h7h8h9hthjhqhkhas2s3s4s5s6s7s8s9stsjsqs3d4d",
-            type: "card (2 duplicates: 3d 4d)",
+            type: "card (2 duplicates: 3d 4d, 1 missing: KS)",
             events: 53,
-            bits: 232,
-            words: 27,
+            bits: 254,
+            words: 21,
             strength: "extremely strong",
         },
         {
             entropy: "ac2c3c4c5c6c7c8c9ctcjcqckcad2d3d4d5d6d7d8d9dtdjdqdkdah2h3h4h5h6h7h8h9hthjhqhkhas2s3s4s5s6s7s8s9stsjsqs3d4d5d6d",
-            type: "card (4 duplicates: 3d 4d 5d...)",
+            type: "card (4 duplicates: 3d 4d 5d..., 1 missing: KS)",
             events: 53,
-            bits: 243,
-            words: 27,
+            bits: 264,
+            words: 24,
             strength: "extremely strong",
         },
         // Next test was throwing uncaught error in zxcvbn
+        // Also tests 451 bits, ie Math.log2(52!)*2 = 225.58 * 2
         {
             entropy: "ac2c3c4c5c6c7c8c9ctcjcqckcad2d3d4d5d6d7d8d9dtdjdqdkdah2h3h4h5h6h7h8h9hthjhqhkhas2s3s4s5s6s7s8s9stsjsqsksac2c3c4c5c6c7c8c9ctcjcqckcad2d3d4d5d6d7d8d9dtdjdqdkdah2h3h4h5h6h7h8h9hthjhqhkhas2s3s4s5s6s7s8s9stsjsqsks",
             type: "card (full deck, 52 duplicates: ac 2c 3c...)",
             events: 104,
-            bits: 452,
-            words: 54,
+            bits: 499,
+            words: 45,
             strength: "extremely strong",
         },
         // Case insensitivity to duplicate cards
@@ -2678,7 +2769,7 @@ page.open(url, function(status) {
             entropy: "asAS",
             type: "card (1 duplicate: AS)",
             events: 2,
-            bits: 12,
+            bits: 9,
             words: 0,
             strength: "extremely weak",
         },
@@ -2686,10 +2777,88 @@ page.open(url, function(status) {
             entropy: "ASas",
             type: "card (1 duplicate: as)",
             events: 2,
-            bits: 12,
+            bits: 9,
             words: 0,
             strength: "extremely weak",
         },
+        // Missing cards are detected
+        {
+            entropy: "ac2c3c4c5c6c7c8c  tcjcqckcad2d3d4d5d6d7d8d9dtdjdqdkdah2h3h4h5h6h7h8h9hthjhqhkhas2s3s4s5s6s7s8s9stsjsqsks",
+            type: "card (1 missing: 9C)",
+            events: 51,
+            bits: 221,
+            words: 18,
+            strength: "extremely strong",
+        },
+        {
+            entropy: "ac2c3c4c5c6c7c8c  tcjcqckcad2d3d4d  6d7d8d9dtdjdqdkdah2h3h4h5h6h7h8h9hthjhqhkhas2s3s4s5s6s7s8s9stsjsqsks",
+            type: "card (2 missing: 9C 5D)",
+            events: 50,
+            bits: 216,
+            words: 18,
+            strength: "extremely strong",
+        },
+        {
+            entropy: "ac2c3c4c5c6c7c8c  tcjcqckcad2d3d4d  6d7d8d9dtdjd  kdah2h3h  5h6h7h8h9hthjhqhkhas2s3s4s5s6s7s8s9stsjsqsks",
+            type: "card (4 missing: 9C 5D QD...)",
+            events: 48,
+            bits: 208,
+            words: 18,
+            strength: "extremely strong",
+        },
+        // More than six missing cards does not show message
+        {
+            entropy: "ac2c3c4c5c6c7c8c  tcjcqckcad2d3d4d  6d  8d9d  jd  kdah2h3h  5h6h7h8h9hthjhqhkh  2s3s4s5s6s7s8s9stsjsqsks",
+            type: "card",
+            events: 45,
+            bits: 195,
+            words: 18,
+            strength: "extremely strong",
+        },
+        // Multiple decks of cards increases bits per event
+        {
+            entropy: "3d",
+            events: 1,
+            bits: 4,
+            bitsPerEvent: 4.34,
+        },
+        {
+            entropy: "3d3d",
+            events: 2,
+            bits: 9,
+            bitsPerEvent: 4.80,
+        },
+        {
+            entropy: "3d3d3d",
+            events: 3,
+            bits: 15,
+            bitsPerEvent: 5.01,
+        },
+        {
+            entropy: "3d3d3d3d",
+            events: 4,
+            bits: 20,
+            bitsPerEvent: 5.14,
+        },
+        {
+            entropy: "3d3d3d3d3d",
+            events: 5,
+            bits: 26,
+            bitsPerEvent: 5.22,
+        },
+        {
+            entropy: "3d3d3d3d3d3d",
+            events: 6,
+            bits: 31,
+            bitsPerEvent: 5.28,
+        },
+        {
+            entropy: "3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d",
+            events: 33,
+            bits: 184,
+            bitsPerEvent: 5.59,
+            strength: 'easily cracked - Repeats like "abcabcabc" are only slightly harder to guess than "abc"',
+        },
     ];
     // use entropy
     page.evaluate(function() {
@@ -2700,18 +2869,21 @@ page.open(url, function(status) {
             if ("filtered" in expected && actual.indexOf(expected.filtered) == -1) {
                 return "Filtered value not in feedback";
             }
-            if (actual.indexOf(expected.type) == -1) {
+            if ("type" in expected && actual.indexOf(expected.type) == -1) {
                 return "Entropy type not in feedback";
             }
-            if (actual.indexOf(expected.events) == -1) {
+            if ("events" in expected && actual.indexOf(expected.events) == -1) {
                 return "Event count not in feedback";
             }
-            if (actual.indexOf(expected.bits) == -1) {
+            if ("bits" in expected && actual.indexOf(expected.bits) == -1) {
                 return "Bit count not in feedback";
             }
-            if (actual.indexOf(expected.strength) == -1) {
+            if ("strength" in expected && actual.indexOf(expected.strength) == -1) {
                 return "Strength not in feedback";
             }
+            if ("bitsPerEvent" in expected && actual.indexOf(expected.bitsPerEvent) == -1) {
+                return "bitsPerEvent not in feedback";
+            }
             return false;
         }
         test = tests[i];
@@ -2725,16 +2897,18 @@ page.open(url, function(status) {
                 return $(".phrase").val();
             });
             // Check mnemonic length
-            if (test.words == 0) {
+            if ("words" in test && test.words == 0) {
                 if (mnemonic.length > 0) {
                     console.log("Mnemonic length for " + test.strength + " strength is not " + test.words);
+                    console.log("Entropy: " + test.entropy);
                     console.log("Mnemonic: " + mnemonic);
                     fail();
                 }
             }
-            else {
+            else if ("words" in test) {
                 if (mnemonic.split(" ").length != test.words) {
                     console.log("Mnemonic length for " + test.strength + " strength is not " + test.words);
+                    console.log("Entropy: " + test.entropy);
                     console.log("Mnemonic: " + mnemonic);
                     fail();
                 }
@@ -2912,6 +3086,339 @@ page.open(url, function(status) {
 });
 },
 
+// Github issue 33
+// https://github.com/iancoleman/bip39/issues/33
+// Final cards should contribute entropy
+function() {
+page.open(url, function(status) {
+    // use entropy
+    page.evaluate(function() {
+        $(".use-entropy").prop("checked", true).trigger("change");
+        $(".entropy").val("7S 9H 9S QH 8C KS AS 7D 7C QD 4S 4D TC 2D 5S JS 3D 8S 8H 4C 3C AC 3S QC 9C JC 7H AD TD JD 6D KH 5C QS 2S 6S 6H JH KD 9D-6C TS TH 4H KC 5H 2H AH 2C 8D 3H 5D").trigger("input");
+    });
+    // get the mnemonic
+    waitForGenerate(function() {
+        var originalPhrase = page.evaluate(function() {
+            return $(".phrase").val();
+        });
+        // Set the last 12 cards to be AS
+        page.evaluate(function() {
+            $(".addresses").empty();
+            $(".entropy").val("7S 9H 9S QH 8C KS AS 7D 7C QD 4S 4D TC 2D 5S JS 3D 8S 8H 4C 3C AC 3S QC 9C JC 7H AD TD JD 6D KH 5C QS 2S 6S 6H JH KD 9D-AS AS AS AS AS AS AS AS AS AS AS AS").trigger("input");
+        });
+        // get the new mnemonic
+        waitForGenerate(function() {
+            var newPhrase = page.evaluate(function() {
+                return $(".phrase").val();
+            });
+            // check the phrase has changed
+            if (newPhrase == originalPhrase) {
+                console.log("Changing last 12 cards does not change mnemonic");
+                console.log("Original:");
+                console.log(originalPhrase);
+                console.log("New:");
+                console.log(newPhrase);
+                fail();
+            }
+            next();
+        });
+    });
+});
+},
+
+// Github issue 35
+// https://github.com/iancoleman/bip39/issues/35
+// QR Code support
+function() {
+page.open(url, function(status) {
+    // use entropy
+    page.evaluate(function() {
+        $(".generate").click();
+    });
+    waitForGenerate(function() {
+        var p = page.evaluate(function() {
+            // get position of mnemonic element
+            return $(".phrase").offset();
+        });
+        p.top = Math.ceil(p.top);
+        p.left = Math.ceil(p.left);
+        // check the qr code shows
+        page.sendEvent("mousemove", p.left+4, p.top+4);
+        var qrShowing = page.evaluate(function() {
+            return $(".qr-container").find("canvas").length > 0;
+        });
+        if (!qrShowing) {
+            console.log("QR Code does not show");
+            fail();
+        }
+        // check the qr code hides
+        page.sendEvent("mousemove", p.left-4, p.top-4);
+        var qrHidden = page.evaluate(function() {
+            return $(".qr-container").find("canvas").length == 0;
+        });
+        if (!qrHidden) {
+            console.log("QR Code does not hide");
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// BIP44 account extendend private key is shown
+// github issue 37 - compatibility with electrum
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    var expected = "xprv9yzrnt4zWVJUr1k2VxSPy9ettKz5PpeDMgaVG7UKedhqnw1tDkxP2UyYNhuNSumk2sLE5ctwKZs9vwjsq3e1vo9egCK6CzP87H2cVYXpfwQ";
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+    });
+    // check the BIP44 account extended private key
+    waitForGenerate(function() {
+        var actual = page.evaluate(function() {
+            return $(".account-xprv").val();
+        });
+        if (actual != expected) {
+            console.log("BIP44 account extended private key is incorrect");
+            console.log("Expected: " + expected);
+            console.log("Actual: " + actual);
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// BIP44 account extendend public key is shown
+// github issue 37 - compatibility with electrum
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    var expected = "xpub6CzDCPbtLrrn4VpVbyyQLHbdSMpZoHN4iuW64VswCyEpfjM2mJGdaHJ2DyuZwtst96E16VvcERb8BBeJdHSCVmAq9RhtRQg6eAZFrTKCNqf";
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+    });
+    // check the BIP44 account extended public key
+    waitForGenerate(function() {
+        var actual = page.evaluate(function() {
+            return $(".account-xpub").val();
+        });
+        if (actual != expected) {
+            console.log("BIP44 account extended public key is incorrect");
+            console.log("Expected: " + expected);
+            console.log("Actual: " + actual);
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// github issue 40
+// BIP32 root key can be set as an xpub
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    page.evaluate(function() {
+        // set xpub for account 0 of bip44 for 'abandon abandon ability'
+        var bip44AccountXpub = "xpub6CzDCPbtLrrn4VpVbyyQLHbdSMpZoHN4iuW64VswCyEpfjM2mJGdaHJ2DyuZwtst96E16VvcERb8BBeJdHSCVmAq9RhtRQg6eAZFrTKCNqf";
+        $("#root-key").val(bip44AccountXpub);
+        $("#root-key").trigger("input");
+    });
+    waitForFeedback(function() {
+        page.evaluate(function() {
+            // Use bip32 tab
+            $("#bip32-tab a").click();
+        });
+        waitForGenerate(function() {
+            page.evaluate(function() {
+                // derive external addresses for this xpub
+                var firstAccountDerivationPath = "m/0";
+                $("#bip32-path").val(firstAccountDerivationPath);
+                $("#bip32-path").trigger("input");
+            });
+            waitForGenerate(function() {
+                // check the addresses are generated
+                var expected = "1Di3Vp7tBWtyQaDABLAjfWtF6V7hYKJtug";
+                var actual = page.evaluate(function() {
+                    return $(".address:first").text();
+                });
+                if (actual != expected) {
+                    console.log("xpub key does not generate addresses in table");
+                    console.log("Expected: " + expected);
+                    console.log("Actual: " + actual);
+                    fail();
+                }
+                // check the xprv key is not set
+                var expected = "NA";
+                var actual = page.evaluate(function() {
+                    return $(".extended-priv-key").val();
+                });
+                if (actual != expected) {
+                    console.log("xpub key as root shows derived bip32 xprv key");
+                    console.log("Expected: " + expected);
+                    console.log("Actual: " + actual);
+                    fail();
+                }
+                // check the private key is not set
+                var expected = "NA";
+                var actual = page.evaluate(function() {
+                    return $(".privkey:first").text();
+                });
+                if (actual != expected) {
+                    console.log("xpub key generates private key in addresses table");
+                    console.log("Expected: " + expected);
+                    console.log("Actual: " + actual);
+                    fail();
+                }
+                next();
+            });
+        });
+    });
+});
+},
+
+// github issue 40
+// xpub for bip32 root key will not work with hardened derivation paths
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    page.evaluate(function() {
+        // set xpub for account 0 of bip44 for 'abandon abandon ability'
+        var bip44AccountXpub = "xpub6CzDCPbtLrrn4VpVbyyQLHbdSMpZoHN4iuW64VswCyEpfjM2mJGdaHJ2DyuZwtst96E16VvcERb8BBeJdHSCVmAq9RhtRQg6eAZFrTKCNqf";
+        $("#root-key").val(bip44AccountXpub);
+        $("#root-key").trigger("input");
+    });
+    waitForFeedback(function() {
+        // Check feedback is correct
+        var expected = "Hardened derivation path is invalid with xpub key";
+        var actual = page.evaluate(function() {
+            return $(".feedback").text();
+        });
+        if (actual != expected) {
+            console.log("xpub key with hardened derivation path does not show feedback");
+            console.log("Expected: " + expected);
+            console.log("Actual: " + actual);
+            fail();
+        }
+        // Check no addresses are shown
+        var expected = 0;
+        var actual = page.evaluate(function() {
+            return $(".addresses tr").length;
+        });
+        if (actual != expected) {
+            console.log("addresses still show after setting xpub key with hardened derivation path");
+            console.log("Expected: " + expected);
+            console.log("Actual: " + actual);
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// github issue 39
+// no root key shows feedback
+function() {
+page.open(url, function(status) {
+    // click the bip32 tab on fresh page
+    page.evaluate(function() {
+        $("#bip32-tab a").click();
+    });
+    waitForFeedback(function() {
+        // Check feedback is correct
+        var expected = "No root key";
+        var actual = page.evaluate(function() {
+            return $(".feedback").text();
+        });
+        if (actual != expected) {
+            console.log("Blank root key not detected");
+            console.log("Expected: " + expected);
+            console.log("Actual: " + actual);
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// Github issue 44
+// display error switching tabs while addresses are generating
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability").trigger("input");
+    });
+    waitForGenerate(function() {
+        // set to generate 500 more addresses
+        // generate more addresses
+        // change tabs which should cancel the previous generating
+        page.evaluate(function() {
+            $(".rows-to-add").val("100");
+            $(".more").click();
+            $("#bip32-tab a").click();
+        });
+        // check the derivation paths are in order and of the right quantity
+        waitForGenerate(function() {
+            var paths = page.evaluate(function() {
+                return $(".index").map(function(i, e) {
+                    return $(e).text();
+                });
+            });
+            for (var i=0; i<paths.length; i++) {
+                var expected = "m/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();
+                }
+            }
+            if (paths.length != 20) {
+                console.log("Generation was not cancelled by new action");
+                fail();
+            }
+            next();
+        });
+    });
+});
+},
+
+// Github issue 49
+// padding for binary should give length with multiple of 256
+// hashed entropy 1111 is length 252, so requires 4 leading zeros
+// prior to issue 49 it would only generate 2 leading zeros, ie missing 2
+function() {
+page.open(url, function(status) {
+    expected = "avocado valid quantum cross link predict excuse edit street able flame large galaxy ginger nuclear"
+    // use entropy
+    page.evaluate(function() {
+        $(".use-entropy").prop("checked", true).trigger("change");
+        $(".mnemonic-length").val("15");
+        $(".entropy").val("1111").trigger("input");
+    });
+    waitForGenerate(function() {
+        // get the mnemonic
+        var actual = page.evaluate(function() {
+            return $(".phrase").val();
+        });
+        // check the mnemonic is correct
+        if (actual != expected) {
+            console.log("Left padding error for entropy");
+            console.log("Expected: " + expected);
+            console.log("Actual: " + actual);
+            fail();
+        }
+        next();
+    });
+});
+},
+
 // If you wish to add more tests, do so here...
 
 // Here is a blank test template