BlueGreenDeploymentService example

class BlueGreenDeploymentServiceTest extends TestCase
{
    use EnvTestBehaviour;

    public function testSetsEnvironmentVariableToTrueIfTriggersCanBeCreated(): void
    {
        $this->setEnvVars([BlueGreenDeploymentService::ENV_NAME => '0']);

        $connection = $this->createMock(Connection::class);
        $connection->expects(static::exactly(3))->method('executeQuery');

        $service = new BlueGreenDeploymentService();
        $session = new Session(new MockArraySessionStorage());
        $service->setEnvironmentVariable($connection, $session);

        static::assertTrue($_ENV[BlueGreenDeploymentService::ENV_NAME]);
        static::assertTrue($_SERVER[BlueGreenDeploymentService::ENV_NAME]);
        static::assertTrue(EnvironmentHelper::getVariable(BlueGreenDeploymentService::ENV_NAME));
        static::assertTrue($session->get(BlueGreenDeploymentService::ENV_NAME));
    }

    public function testSetsEnvironmentVariableToFalseIfTriggersCanNotBeCreated(): void
    {