DataTest.php

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<?php
namespace Magento\GoogleOptimizer\Test\Unit\Helper;

class DataTest extends \PHPUnit\Framework\TestCase
{
    protected $_scopeConfigMock;

    protected $_googleAnalyticsHelperMock;

    protected $_helper;

    protected function setUp()
    {
        $objectManagerHelper = new \Magento\Framework\TestFramework\Unit\Helper\ObjectManager($this);
        $className = \Magento\GoogleOptimizer\Helper\Data::class;
        $arguments = $objectManagerHelper->getConstructArguments($className);
        $context = $arguments['context'];
        $this->_scopeConfigMock = $context->getScopeConfig();
        $this->_googleAnalyticsHelperMock = $arguments['analyticsHelper'];
        $this->_helper = $objectManagerHelper->getObject($className, $arguments);
    }

    public function testGoogleExperimentIsEnabled($isExperimentsEnabled)
    {
        $store = 1;
        $this->_scopeConfigMock->expects(
            $this->once()
        )->method(
            'isSetFlag'
        )->with(
            \Magento\GoogleOptimizer\Helper\Data::XML_PATH_ENABLED,
            \Magento\Store\Model\ScopeInterface::SCOPE_STORE,
            $store
        )->will(
            $this->returnValue($isExperimentsEnabled)
        );

        $this->assertEquals($isExperimentsEnabled, $this->_helper->isGoogleExperimentEnabled($store));
    }

    public function dataProviderBoolValues()
    {
        return [[true], [false]];
    }

    public function testGoogleExperimentIsActive($isExperimentsEnabled, $isAnalyticsAvailable, $result)
    {
        $store = 1;
        $this->_scopeConfigMock->expects(
            $this->once()
        )->method(
            'isSetFlag'
        )->with(
            \Magento\GoogleOptimizer\Helper\Data::XML_PATH_ENABLED,
            \Magento\Store\Model\ScopeInterface::SCOPE_STORE,
            $store
        )->will(
            $this->returnValue($isExperimentsEnabled)
        );

        $this->_googleAnalyticsHelperMock->expects(
            $this->any()
        )->method(
            'isGoogleAnalyticsAvailable'
        )->with(
            $store
        )->will(
            $this->returnValue($isAnalyticsAvailable)
        );

        $this->assertEquals($result, $this->_helper->isGoogleExperimentActive($store));
    }

    public function dataProviderForTestGoogleExperimentIsActive()
    {
        return [
            [true, true, true],
            [false, true, false],
            [false, false, false],
            [true, false, false]
        ];
    }
}