MAGETWO-59003: Js file version regenerated in browser on every page reload in develop mode

Author: Karpenko, Oleksandr

dev/tests/integration/testsuite/Magento/Framework/App/View/Deployment/VersionTest.php

@@ -0,0 +1,106 @@
+<?php
+/**
+ * Copyright © 2016 Magento. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Framework\App\View\Deployment;
+
+use Magento\Framework\App\Filesystem\DirectoryList;
+use Magento\Framework\App\ObjectManager;
+use Magento\Framework\App\State;
+use Magento\Framework\App\View\Deployment\Version\Storage\File;
+use Magento\Framework\Filesystem\Directory\WriteInterface;
+
+class VersionTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @var File
+     */
+    private $fileStorage;
+
+    /**
+     * @var WriteInterface
+     */
+    private $directoryWrite;
+
+    /**
+     * @var string
+     */
+    private $fileName = 'deployed_version.txt';
+
+    public function setUp()
+    {
+        $this->fileStorage = ObjectManager::getInstance()->create(
+            File::class,
+            [
+                'directoryCode' => DirectoryList::STATIC_VIEW,
+                'fileName' => $this->fileName
+            ]
+        );
+        /** @var \Magento\TestFramework\App\Filesystem $filesystem */
+        $filesystem = ObjectManager::getInstance()->get(\Magento\TestFramework\App\Filesystem::class);
+        $this->directoryWrite = $filesystem->getDirectoryWrite(DirectoryList::STATIC_VIEW);
+        $this->removeDeployVersionFile();
+    }
+
+    /**
+     * @param string $mode
+     * @return Version
+     */
+    public function getVersionModel($mode)
+    {
+        $appState = ObjectManager::getInstance()->create(
+            State::class,
+            [
+                'mode' => $mode
+            ]
+        );
+        return ObjectManager::getInstance()->create(
+            Version::class,
+            [
+                'appState' => $appState
+            ]
+        );
+    }
+
+    protected function tearDown()
+    {
+        $this->removeDeployVersionFile();
+    }
+
+    private function removeDeployVersionFile()
+    {
+        if ($this->directoryWrite->isExist($this->fileName)) {
+            $this->directoryWrite->delete($this->fileName);
+        }
+    }
+
+    /**
+     * @expectedException \UnexpectedValueException
+     */
+    public function testGetValueInProductionModeWithoutVersion()
+    {
+        $this->assertFalse($this->directoryWrite->isExist($this->fileName));
+        $this->getVersionModel(State::MODE_PRODUCTION)->getValue();
+    }
+
+
+    public function testGetValueInDeveloperMode()
+    {
+        $this->assertFalse($this->directoryWrite->isExist($this->fileName));
+        $this->getVersionModel(State::MODE_DEVELOPER)->getValue();
+        $this->assertTrue($this->directoryWrite->isExist($this->fileName));
+    }
+
+    /**
+     * Assert that version is not regenerated on each request in developer mode
+     */
+    public function testGetValue()
+    {
+        $this->assertFalse($this->directoryWrite->isExist($this->fileName));
+        $versionModel = $this->getVersionModel(State::MODE_DEVELOPER);
+        $version = $versionModel->getValue();
+        $this->assertTrue($this->directoryWrite->isExist($this->fileName));
+        $this->assertEquals($version, $versionModel->getValue());
+    }
+}