Cache\Adapter\Common\Tests\CacheItemTest::testSet PHP Метод

    public function testSet()
    {
        $item = new CacheItem('test_key');
        $ref = new \ReflectionObject($item);
        $valueProp = $ref->getProperty('value');
        $valueProp->setAccessible(true);
        $hasValueProp = $ref->getProperty('hasValue');
        $hasValueProp->setAccessible(true);
        $this->assertEquals(null, $valueProp->getValue($item));
        $this->assertFalse($hasValueProp->getValue($item));
        $item->set('value');
        $this->assertEquals('value', $valueProp->getValue($item));
        $this->assertTrue($hasValueProp->getValue($item));
    }