Read our [wiki](https://github.com/wp-cli/wp-cli/wiki) and find out how to create your own commands with our [commands cookbook](https://github.com/wp-cli/wp-cli/wiki/Commands-Cookbook).
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+
+Running tests
+-------------
+
+The tests use PHPUnit, which can be installed using [composer](http://getcomposer.org/).
+Once you've composer installed, run:
+
+ composer.phar install --dev
+
+Before running the tests, you'll need a MySQL user called wp_cli_test with the password password1 that
+has full privileges on the MySQL database wp_cli_test. Running the following
+as root in MySQL should do the trick:
+
+ GRANT ALL PRIVILEGES ON wp_cli_test.* TO "wp_cli_test"@"localhost"
+ IDENTIFIED BY "password1";
+
+Finally, to run the tests:
+
+ vendor/bin/phpunit tests
+
+