executeBeforeTest example

        $_SERVER = $this->serverVarsBackup;
        $_ENV = $this->envVarsBackup;
        Feature::resetRegisteredFeatures();
        Feature::registerFeatures($this->featureConfigBackup);
    }

    public function testAllFeatureFlagsAreActivated(): void
    {
        $_SERVER['V6_5_0_0'] = false;

        $this->extension->executeBeforeTest(__METHOD__);

        static::assertTrue(Feature::isActive('v6.5.0.0'));

        $this->extension->executeAfterTest(__METHOD__, 0.1);

        static::assertArrayHasKey('V6_5_0_0', $_SERVER);
        static::assertFalse($_SERVER['V6_5_0_0']);
    }

    public function testIsDoesNotAffectNonPureUnitTests(): void
    {