Bart\Configuration\ConfigurationTest::testGetUsername PHP Method

    public function testGetUsername()
    {
        $this->shmockAndDieselify('\\Bart\\Shell', function ($shell) {
            $shell->get_effective_user_name()->once()->return_value('jbraynard');
        });
        $configs = new TestConfig();
        $username = $configs->username();
        $this->assertEquals('jbraynard', $username, 'username');
        // Should use cache and not call get_effective_user_name a second time
        $username = $configs->username();
        $this->assertEquals('jbraynard', $username, 'username');
    }