feat: Add defaultinstance in OptimizelyFactory

Author: oakbani

Diff for: src/Optimizely/OptimizelyFactory.php

@@ -0,0 +1,42 @@
+<?php
+/**
+ * Copyright 2020, Optimizely
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+namespace Optimizely;
+
+use Optimizely\Optimizely;
+
+/**
+ * Class OptimizelyFactory
+ *
+ * @package Optimizely
+ */
+class OptimizelyFactory
+{
+    public static function createDefaultInstance($sdkKey, $fallbackDatafile = null)
+    {
+        return new Optimizely(
+            $fallbackDatafile,
+            null,
+            null,
+            null,
+            null,
+            null,
+            null,
+            null,
+            $sdkKey
+        );
+    }
+}

Diff for: tests/OptimizelyFactoryTest.php

@@ -0,0 +1,60 @@
+<?php
+/**
+ * Copyright 2020, Optimizely
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+namespace Optimizely\Tests;
+
+use Exception;
+use GuzzleHttp\Client;
+use GuzzleHttp\Handler\MockHandler;
+use GuzzleHttp\HandlerStack;
+use GuzzleHttp\Psr7\Response;
+use Optimizely\OptimizelyFactory;
+use Optimizely\ProjectConfigManager\HTTPProjectConfigManager;
+
+class OptimizelyFactoryTest extends \PHPUnit_Framework_TestCase
+{
+    public function setUp()
+    {
+        $this->datafile = DATAFILE;
+        $this->typedAudiencesDataFile = DATAFILE_WITH_TYPED_AUDIENCES;
+    }
+
+    public function testDefaultInstance()
+    {
+        $optimizelyClient = OptimizelyFactory::createDefaultInstance("some-sdk-key", $this->datafile);
+
+        // client hasn't been mocked yet. Hence, config manager should return config of hardcoded
+        // datafile.
+        $this->assertEquals('15', $optimizelyClient->configManager->getConfig()->getRevision());
+
+        // Mock http client to return a valid datafile
+        $mock = new MockHandler([
+            new Response(200, [], $this->typedAudiencesDataFile)
+        ]);
+
+        $handler = HandlerStack::create($mock);
+
+        $client = new Client(['handler' => $handler]);
+        $httpClient = new \ReflectionProperty(HTTPProjectConfigManager::class, 'httpClient');
+        $httpClient->setAccessible(true);
+        $httpClient->setValue($optimizelyClient->configManager, $client);
+
+        /// Fetch datafile
+        $optimizelyClient->configManager->fetch();
+
+        $this->assertEquals('3', $optimizelyClient->configManager->getConfig()->getRevision());
+    }
+}