Add tests for the CachedResourceMetadataFactory class

Author: meyerbaptiste

src/Metadata/Resource/Factory/CachedResourceMetadataFactory.php

@@ -56,12 +56,8 @@ public function create(string $resourceClass): ResourceMetadata
             return $resourceMetadata;
         }
 
-        try {
-            $cacheItem->set($resourceMetadata);
-            $this->cacheItemPool->save($cacheItem);
-        } catch (CacheException $e) {
-            // do nothing
-        }
+        $cacheItem->set($resourceMetadata);
+        $this->cacheItemPool->save($cacheItem);
 
         return $resourceMetadata;
     }

tests/Metadata/Resource/Factory/CachedResourceMetadataFactoryTest.php

@@ -0,0 +1,89 @@
+<?php
+
+/*
+ * This file is part of the API Platform project.
+ *
+ * (c) Kévin Dunglas <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace ApiPlatform\Core\Tests\Metadata\Resource\Factory;
+
+use ApiPlatform\Core\Metadata\Resource\Factory\CachedResourceMetadataFactory;
+use ApiPlatform\Core\Metadata\Resource\Factory\ResourceMetadataFactoryInterface;
+use ApiPlatform\Core\Metadata\Resource\ResourceMetadata;
+use ApiPlatform\Core\Tests\Fixtures\TestBundle\Entity\Dummy;
+use Psr\Cache\CacheException;
+use Psr\Cache\CacheItemInterface;
+use Psr\Cache\CacheItemPoolInterface;
+
+/**
+ * @author Baptiste Meyer <[email protected]>
+ */
+class CachedResourceMetadataFactoryTest extends \PHPUnit_Framework_TestCase
+{
+    public function testCreateWithItemHit()
+    {
+        $cacheItem = $this->prophesize(CacheItemInterface::class);
+        $cacheItem->isHit()->willReturn(true)->shouldBeCalled();
+        $cacheItem->get()->willReturn(new ResourceMetadata(null, 'Dummy.'))->shouldBeCalled();
+
+        $cacheItemPool = $this->prophesize(CacheItemPoolInterface::class);
+        $cacheItemPool->getItem($this->generateCacheKey())->willReturn($cacheItem->reveal())->shouldBeCalled();
+
+        $decoratedResourceMetadataFactory = $this->prophesize(ResourceMetadataFactoryInterface::class);
+
+        $cachedResourceMetadataFactory = new CachedResourceMetadataFactory($cacheItemPool->reveal(), $decoratedResourceMetadataFactory->reveal());
+        $resultedResourceMetadata = $cachedResourceMetadataFactory->create(Dummy::class);
+
+        $this->assertInstanceOf(ResourceMetadata::class, $resultedResourceMetadata);
+        $this->assertEquals(new ResourceMetadata(null, 'Dummy.'), $resultedResourceMetadata);
+    }
+
+    public function testCreateWithItemNotHit()
+    {
+        $propertyMetadata = new ResourceMetadata(null, 'Dummy.');
+
+        $decoratedResourceMetadataFactory = $this->prophesize(ResourceMetadataFactoryInterface::class);
+        $decoratedResourceMetadataFactory->create(Dummy::class)->willReturn($propertyMetadata)->shouldBeCalled();
+
+        $cacheItem = $this->prophesize(CacheItemInterface::class);
+        $cacheItem->isHit()->willReturn(false)->shouldBeCalled();
+        $cacheItem->set($propertyMetadata)->willReturn($cacheItem->reveal())->shouldBeCalled();
+
+        $cacheItemPool = $this->prophesize(CacheItemPoolInterface::class);
+        $cacheItemPool->getItem($this->generateCacheKey())->willReturn($cacheItem->reveal())->shouldBeCalled();
+        $cacheItemPool->save($cacheItem->reveal())->willReturn(true)->shouldBeCalled();
+
+        $cachedResourceMetadataFactory = new CachedResourceMetadataFactory($cacheItemPool->reveal(), $decoratedResourceMetadataFactory->reveal());
+        $resultedResourceMetadata = $cachedResourceMetadataFactory->create(Dummy::class);
+
+        $this->assertInstanceOf(ResourceMetadata::class, $resultedResourceMetadata);
+        $this->assertEquals(new ResourceMetadata(null, 'Dummy.'), $resultedResourceMetadata);
+    }
+
+    public function testCreateWithGetCacheItemThrowsCacheException()
+    {
+        $decoratedResourceMetadataFactory = $this->prophesize(ResourceMetadataFactoryInterface::class);
+        $decoratedResourceMetadataFactory->create(Dummy::class)->willReturn(new ResourceMetadata(null, 'Dummy.'))->shouldBeCalled();
+
+        $cacheException = $this->prophesize(CacheException::class);
+        $cacheException->willExtend(\Exception::class);
+
+        $cacheItemPool = $this->prophesize(CacheItemPoolInterface::class);
+        $cacheItemPool->getItem($this->generateCacheKey())->willThrow($cacheException->reveal())->shouldBeCalled();
+
+        $cachedResourceMetadataFactory = new CachedResourceMetadataFactory($cacheItemPool->reveal(), $decoratedResourceMetadataFactory->reveal());
+        $resultedResourceMetadata = $cachedResourceMetadataFactory->create(Dummy::class);
+
+        $this->assertInstanceOf(ResourceMetadata::class, $resultedResourceMetadata);
+        $this->assertEquals(new ResourceMetadata(null, 'Dummy.'), $resultedResourceMetadata);
+    }
+
+    private function generateCacheKey(string $resourceClass = Dummy::class)
+    {
+        return CachedResourceMetadataFactory::CACHE_KEY_PREFIX.md5(serialize([$resourceClass]));
+    }
+}