AccessProxyTest.php

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<?php
namespace Magento\Framework\App\Test\Unit\Cache\Type;

class AccessProxyTest extends \PHPUnit\Framework\TestCase
{
    public function testProxyMethod($method, $params, $disabledResult, $enabledResult)
    {
        $identifier = 'cache_type_identifier';

        $frontendMock = $this->createMock(\Magento\Framework\Cache\FrontendInterface::class);

        $cacheEnabler = $this->createMock(\Magento\Framework\App\Cache\StateInterface::class);
        $cacheEnabler->expects($this->at(0))->method('isEnabled')->with($identifier)->will($this->returnValue(false));
        $cacheEnabler->expects($this->at(1))->method('isEnabled')->with($identifier)->will($this->returnValue(true));

        $object = new \Magento\Framework\App\Cache\Type\AccessProxy($frontendMock, $cacheEnabler, $identifier);
        $helper = new \Magento\Framework\TestFramework\Unit\Helper\ProxyTesting();

        // For the first call the cache is disabled - so fake default result is returned
        $result = $helper->invokeWithExpectations($object, $frontendMock, $method, $params, $enabledResult);
        $this->assertSame($disabledResult, $result);

        // For the second call the cache is enabled - so real cache result is returned
        $result = $helper->invokeWithExpectations($object, $frontendMock, $method, $params, $enabledResult);
        $this->assertSame($enabledResult, $result);
    }

    public static function proxyMethodDataProvider()
    {
        return [
            ['test', ['record_id'], false, 111],
            ['load', ['record_id'], false, '111'],
            ['save', ['record_value', 'record_id', ['tag'], 555], true, false],
            ['remove', ['record_id'], true, false],
            ['clean', [\Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG, ['tag']], true, false]
        ];
    }
}