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### Setup your environment for tests
The framework used is [PHPUnit](https://phpunit.de/); it can be installed with [Composer](https://getcomposer.org/), which is a dependency management tool.
### Install composer
You can either use:
- a system-wide version, e.g. installed through your distro's package manager (eg. `sudo apt install composer`)
- a local version, downloadable [here](https://getcomposer.org/download/). To update a local composer installation, run `php composer.phar self-update`
#### Install Shaarli dev dependencies
```bash
$ cd /path/to/shaarli
$ composer install
$ composer update
```
#### Install Xdebug
Xdebug must be installed and enable for PHPUnit to generate coverage reports. See http://xdebug.org/docs/install.
```bash
# for Debian-based distributions
$ aptitude install php5-xdebug
# for ArchLinux:
$ pacman -S xdebug
```
Then add the following line to `/etc/php/php.ini`:
```ini
zend_extension=xdebug.so
```
#### Run unit tests
Run `make test` and ensure tests return `OK`. If tests return failures, refer to PHPUnit messages and fix your code/tests accordingly.
By default, PHPUnit will run all suitable tests found under the `tests` directory. Each test has 3 possible outcomes:
- `.` - success
- `F` - failure: the test was run but its results are invalid
- the code does not behave as expected
- dependencies to external elements: globals, session, cache...
- `E` - error: something went wrong and the tested code has crashed
- typos in the code, or in the test code
- dependencies to missing external elements
If Xdebug has been installed and activated, two coverage reports will be generated:
- a summary in the console
- a detailed HTML report with metrics for tested code
- to open it in a web browser: `firefox coverage/index.html &`
### Executing specific tests
Add a [`@group`](https://phpunit.de/manual/current/en/appendixes.annotations.html#appendixes.annotations.group) annotation in a test class or method comment:
```php
/**
* Netscape bookmark import
* @group WIP
*/
class BookmarkImportTest extends PHPUnit_Framework_TestCase
{
[...]
}
```
To run all tests annotated with `@group WIP`:
```bash
$ vendor/bin/phpunit --group WIP tests/
```
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