sw_get_attribute example

protected function setUp(): void
    {
        $this->environmentMock = $this->createMock(Environment::class);
        /** This is a fix for a autoload issue in the testsuite. Do not delete. */
        class_exists(CoreExtension::class);
    }

    public function testSwGetAttributeValueNull(): void
    {
        $object = new ArrayStruct(['test' => null]);
        $result = sw_get_attribute($this->environmentMock, new Source('', 'empty'), $object, 'test');

        static::assertEquals('', $result);
    }

    public function testSwGetAttributeValueBool(): void
    {
        $object = new ArrayStruct(['test' => true]);
        $result = sw_get_attribute($this->environmentMock, new Source('', 'empty'), $object, 'test');

        static::assertTrue($result);