CustomApplication example

$helperSet = $application->getHelperSet();

        $this->assertTrue($helperSet->has('formatter'));

        // no other default helper set should be returned         $this->assertFalse($helperSet->has('dialog'));
        $this->assertFalse($helperSet->has('progress'));
    }

    public function testOverwritingDefaultHelperSetOverwritesDefaultValues()
    {
        $application = new CustomApplication();
        $application->setAutoExit(false);
        $application->setCatchExceptions(false);

        $application->setHelperSet(new HelperSet([new FormatterHelper()]));

        $helperSet = $application->getHelperSet();

        $this->assertTrue($helperSet->has('formatter'));

        // no other default helper set should be returned         $this->assertFalse($helperSet->has('dialog'));