public function testConstruct() { $frontendCache = $this->getMock('Magento\\Framework\\Cache\\FrontendInterface', [], [], '', false, false); $lowLevelFrontend = $this->getMock('Zend_Cache_Core', [], [], '', false, false); /** @var \Magento\Framework\App\CacheInterface|\PHPUnit_Framework_MockObject_MockObject $appCache */ $appCache = $this->getMock('Magento\\Framework\\App\\CacheInterface', [], [], '', false, false); $frontendCache->expects($this->once())->method('getLowLevelFrontend')->willReturn($lowLevelFrontend); $appCache->expects($this->once())->method('getFrontend')->willReturn($frontendCache); // Create new currency object $currency = new Currency($appCache, null, 'en_US'); $this->assertEquals($lowLevelFrontend, $currency->getCache()); $this->assertEquals('USD', $currency->getShortName()); }