doc/Unit-tests.md

   1 #Unit tests
   2
   3 ### Setup your environment for tests
   4 The framework used is [PHPUnit](https://phpunit.de/); it can be installed with [Composer](https://getcomposer.org/), which is a dependency management tool.[](.html)
   5
   6 Regarding Composer, you can either use:
   7 * a system-wide version, e.g. installed through your distro's package manager
   8 * a local version, downloadable [here](https://getcomposer.org/download/)[](.html)
   9
  10 #### Sample usage
  11 ```bash
  12 # system-wide version
  13 $ composer install
  14 $ composer update
  15
  16 # local version
  17 $ php composer.phar self-update
  18 $ php composer.phar install
  19 $ php composer.phar update
  20 ```
  21
  22 #### Install Shaarli dev dependencies
  23 ```bash
  24 $ cd /path/to/shaarli
  25 $ composer update
  26 ```
  27
  28 #### Install and enable Xdebug to generate PHPUnit coverage reports
  29 For Debian-based distros:
  30 ```bash
  31 $ aptitude install php5-xdebug
  32 ```
  33 For ArchLinux:
  34 ```bash
  35 $ pacman -S xdebug
  36 ```
  37
  38 Then add the following line to `/etc/php/php.ini`:
  39 ```ini
  40 zend_extension=xdebug.so
  41 ```
  42
  43 #### Run unit tests
  44 Successful test suite:
  45 ```bash
  46 $ make test
  47
  48 -------
  49 PHPUNIT
  50 -------
  51 PHPUnit 4.6.9 by Sebastian Bergmann and contributors.
  52
  53 Configuration read from /home/virtualtam/public_html/shaarli/phpunit.xml
  54
  55 ....................................
  56
  57 Time: 759 ms, Memory: 8.25Mb
  58
  59 OK (36 tests, 65 assertions)
  60 ```
  61
  62 Test suite with failures and errors:
  63 ```bash
  64 $ make test
  65 -------
  66 PHPUNIT
  67 -------
  68 PHPUnit 4.6.9 by Sebastian Bergmann and contributors.
  69
  70 Configuration read from /home/virtualtam/public_html/shaarli/phpunit.xml
  71
  72 E..FF...............................
  73
  74 Time: 802 ms, Memory: 8.25Mb
  75
  76 There was 1 error:
  77
  78 1) LinkDBTest::testConstructLoggedIn
  79 Missing argument 2 for LinkDB::__construct(), called in /home/virtualtam/public_html/shaarli/tests/Link\
  80 DBTest.php on line 79 and defined
  81
  82 /home/virtualtam/public_html/shaarli/application/LinkDB.php:58
  83 /home/virtualtam/public_html/shaarli/tests/LinkDBTest.php:79
  84
  85 --
  86
  87 There were 2 failures:
  88
  89 1) LinkDBTest::testCheckDBNew
  90 Failed asserting that two strings are equal.
  91 --- Expected
  92 +++ Actual
  93 @@ @@
  94 -'e3edea8ea7bb50be4bcb404df53fbb4546a7156e'
  95 +'85eab0c610d4f68025f6ed6e6b6b5fabd4b55834'
  96
  97 /home/virtualtam/public_html/shaarli/tests/LinkDBTest.php:121
  98
  99 2) LinkDBTest::testCheckDBLoad
 100 Failed asserting that two strings are equal.
 101 --- Expected
 102 +++ Actual
 103 @@ @@
 104 -'e3edea8ea7bb50be4bcb404df53fbb4546a7156e'
 105 +'85eab0c610d4f68025f6ed6e6b6b5fabd4b55834'
 106
 107 /home/virtualtam/public_html/shaarli/tests/LinkDBTest.php:133
 108
 109 FAILURES!
 110 Tests: 36, Assertions: 63, Errors: 1, Failures: 2.
 111 ```
 112
 113 #### Test results and coverage
 114 By default, PHPUnit will run all suitable tests found under the `tests` directory.
 115
 116 Each test has 3 possible outcomes:
 117 * `.` - success
 118 * `F` - failure: the test was run but its results are invalid
 119  * the code does not behave as expected
 120  * dependencies to external elements: globals, session, cache...
 121 * `E` - error: something went wrong and the tested code has crashed
 122  * typos in the code, or in the test code
 123  * dependencies to missing external elements
 124
 125 If Xdebug has been installed and activated, two coverage reports will be generated:
 126 * a summary in the console
 127 * a detailed HTML report with metrics for tested code
 128  * to open it in a web browser: `firefox coverage/index.html &`