Implement FileLoaderTest

composer.json

@@ -25,7 +25,8 @@
         "pimple/pimple": "~3.0",
         "symfony/dependency-injection": "^2.7",
         "symfony/config": "^2.7",
-        "symfony/expression-language": "^2.7"
+        "symfony/expression-language": "^2.7",
+        "mikey179/vfsStream": "^1.0"
     },
     "require-dev": {
         "phpunit/phpunit": "4.8.*"

tests/RuleSet/Loader/FileLoaderTest.php

@@ -2,14 +2,14 @@
 
 namespace SensioLabs\DeprecationDetector\Tests\RuleSet\Loader;
 
+use org\bovigo\vfs\vfsStream;
+use SensioLabs\DeprecationDetector\RuleSet\RuleSet;
+
 class FileLoaderTest extends \PHPUnit_Framework_TestCase
 {
     public function testClassIsInitializable()
     {
-        $dispatcher = $this->prophesize('Symfony\Component\EventDispatcher\EventDispatcher');
-        $loader = new \SensioLabs\DeprecationDetector\RuleSet\Loader\FileLoader($dispatcher->reveal());
-
-        $this->assertInstanceOf('SensioLabs\DeprecationDetector\RuleSet\Loader\FileLoader', $loader);
+        $this->assertInstanceOf('SensioLabs\DeprecationDetector\RuleSet\Loader\FileLoader', $this->getInstance());
     }
 
     /**
@@ -18,15 +18,44 @@ public function testClassIsInitializable()
      */
     public function testLoadingNotExistingFileThrowsAnException()
     {
-        $dispatcher = $this->prophesize('Symfony\Component\EventDispatcher\EventDispatcher');
-        $loader = new \SensioLabs\DeprecationDetector\RuleSet\Loader\FileLoader($dispatcher->reveal());
-
-        $loader->loadRuleSet('no_such.file');
+        $this->getInstance()->loadRuleSet('no_such.file');
     }
 
+    /**
+     * @expectedException \RuntimeException
+     * @expectedExceptionMessage Rule set file is not valid.
+     */
     public function testLoadRuleSetThrowsExceptionIfCachedIsNotAnInstanceOfRuleset()
     {
-        //@TODO: file_get_contents is untestable
-        $this->markTestSkipped();
+        $dummy = 'This is not a RuleSet';
+
+        $root = vfsStream::setup();
+        $virtualFile = vfsStream::newFile('dummy')
+            ->withContent(serialize($dummy))
+            ->at($root);
+
+        $this->getInstance()->loadRuleSet($virtualFile->url());
+    }
+
+    public function testLoadRuleSetSuccess()
+    {
+        $ruleSet = new RuleSet();
+
+        $root = vfsStream::setup();
+        $virtualFile = vfsStream::newFile('ruleSet')
+            ->withContent(serialize($ruleSet))
+            ->at($root);
+
+        $loader = $this->getInstance();
+
+        $actualRuleSet = $loader->loadRuleSet($virtualFile->url());
+
+        $this->assertInstanceOf('\SensioLabs\DeprecationDetector\RuleSet\RuleSet', $actualRuleSet);
+    }
+
+    protected function getInstance()
+    {
+        $dispatcher = $this->prophesize('Symfony\Component\EventDispatcher\EventDispatcher');
+        return new \SensioLabs\DeprecationDetector\RuleSet\Loader\FileLoader($dispatcher->reveal());
     }
 }