Example testing with in-memory SQLite database

CodeTest.php

<?php

/**
 * Intention:
 *
 * "testing" environment has a SQLite database configured
 * Run migrations against --env=testing
 *
 * Separate seeds run here per test method will delete the SQLite
 * code tables, and re-create them with codes that fit the needs
 * of the two tests here
 *
 * sudo apt-get update
 * sudo apt-get install libsqlite3-0 php5-sqlite
 */

class CodeTest extends TestCase {

    /**
     * Test if you get a shipping code because there are no
     * winnable codes.
     *
     * This happens if all codes in the past are marked as "won"
     * or "deleted" where "deleted" === won and claimed
     *
     * This also happens when there are no codes in the past.
     *
     * Also implicitly tests that you cannot get a code that's
     * from the future.
     */
    public function testGetShippingCodeIfNoWinnableCodes()
    {
        $this->migrate();
        $this->seed('TestUnwinnableSeeder');

        $codeRepo = App::make('Namespace\Repositories\Code\CodeInterface');

        // Test database should create 2 winnable codes
        // and then the free shipping code
        // The third code should therefore be the shipping code
        $code1 = $codeRepo->nextCode(new DateTime);
        $code2 = $codeRepo->nextCode(new DateTime);
        $code3 = $codeRepo->nextCode(new DateTime);

        $this->assertTrue($code1->code === 'ABC123');
        $this->assertTrue($code2->code === 'ABC123');
        $this->assertTrue($code3->code === 'ABC123');

    }

    /**
     * Test that you win a code
     *
     * This happens when there is a winning code in the past
     * but is not yet marked as "won" or "deleted", where
     * "deleted" === won and claimed
     */
    public function testGetWinningCode()
    {
        $this->migrate();
        $this->seed('TestWinnableSeeder');

        $codeRepo = App::make('Namespace\Repositories\Code\CodeInterface');

        // Test database should create 2 winnable codes
        // and then the free shipping code
        // The third code should therefore be the shipping code
        $code1 = $codeRepo->nextCode(new DateTime);
        $code2 = $codeRepo->nextCode(new DateTime);
        $code3 = $codeRepo->nextCode(new DateTime);

        $this->assertTrue($code1->code != 'ABC123');
        $this->assertTrue($code2->code != 'ABC123');
        $this->assertTrue($code3->code === 'ABC123');
    }

    /**
     * Add data tables to SQLite in-memory database
     * This database only lasts per request!
     *
     * Anything run in tests automatically uses the
     * "testing" environment
     */
    protected function migrate()
    {
        Artisan::call('migrate');
    }
}

database.php

<?php

//app/config/testing/database.php

return array(

    'default' => 'sqlite',

    'connections' => array(

        'sqlite' => array(
            'driver'   => 'sqlite',
            'database' => ':memory:',
            'prefix'   => '',
        ),

    ),

);