added config tests

Tests/DependencyInjection/FOSMessageExtensionTest.php

@@ -0,0 +1,141 @@
+<?php
+
+namespace FOS\MessageBundle\Tests\DependencyInjection;
+
+use FOS\MessageBundle\DependencyInjection\FOSMessageExtension;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\Yaml\Parser;
+
+class FOSMessageExtensionTest extends \PHPUnit_Framework_TestCase
+{
+
+    /** @var ContainerBuilder */
+    protected $configuration;
+
+    /**
+     * @expectedException \Symfony\Component\Config\Definition\Exception\InvalidConfigurationException
+     */
+    public function testMessageLoadThrowsExceptionUnlessDbDriverSet()
+    {
+        $loader = new FOSMessageExtension();
+        $config = $this->getEmptyConfig();
+        unset($config['db_driver']);
+        $loader->load(array($config), new ContainerBuilder());
+    }
+
+    /**
+     * @expectedException \Symfony\Component\Config\Definition\Exception\InvalidConfigurationException
+     */
+    public function testMessageLoadThrowsExceptionUnlessThreadClassSet()
+    {
+        $loader = new FOSMessageExtension();
+        $config = $this->getEmptyConfig();
+        unset($config['thread_class']);
+        $loader->load(array($config), new ContainerBuilder());
+    }
+
+    /**
+     * @expectedException \Symfony\Component\Config\Definition\Exception\InvalidConfigurationException
+     */
+    public function testMessageLoadThrowsExceptionUnlessMessageClassSet()
+    {
+        $loader = new FOSMessageExtension();
+        $config = $this->getEmptyConfig();
+        unset($config['message_class']);
+        $loader->load(array($config), new ContainerBuilder());
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     * @expectedExceptionMessage Invalid db driver "foo"
+     */
+    public function testUnsupportedDbDriverThrowsException()
+    {
+        $loader = new FOSMessageExtension();
+        $config = $this->getEmptyConfig();
+        $config['db_driver'] = "foo";
+        $loader->load(array($config), new ContainerBuilder());
+    }
+
+    public function testFlashesAreDisabledByDefault()
+    {
+        $this->createEmptyConfiguration();
+        $this->assertNotHasDefinition('fos_message.flash_listener');
+    }
+
+    public function testUserEnablesFlashes()
+    {
+        $this->configuration = new ContainerBuilder();
+        $loader = new FOSMessageExtension();
+        $config = $this->getEmptyConfigWithFlashesEnabled();
+        $loader->load(array($config), $this->configuration);
+
+        $this->assertHasDefinition('fos_message.flash_listener');
+        $this->assertParameter('success', 'fos_message.flash_messages_key');
+    }
+
+    protected function createEmptyConfiguration()
+    {
+        $this->configuration = new ContainerBuilder();
+        $loader = new FOSMessageExtension();
+        $config = $this->getEmptyConfig();
+        $loader->load(array($config), $this->configuration);
+        $this->assertTrue($this->configuration instanceof ContainerBuilder);
+    }
+
+    /**
+     * getEmptyConfig
+     *
+     * @return array
+     */
+    protected function getEmptyConfig()
+    {
+        $yaml = <<<EOF
+db_driver: mongodb
+thread_class: Acme\MyBundle\Entity\Thread
+message_class: Acme\MyBundle\Entity\Message
+EOF;
+        $parser = new Parser();
+
+        return $parser->parse($yaml);
+    }
+
+    protected function getEmptyConfigWithFlashesEnabled()
+    {
+       $yaml = <<<EOF
+db_driver: mongodb
+thread_class: Acme\MyBundle\Entity\Thread
+message_class: Acme\MyBundle\Entity\Message
+flash_messages:
+    enabled: true
+EOF;
+        $parser = new Parser();
+
+        return $parser->parse($yaml);
+    }
+
+    /**
+     * @param mixed $value
+     * @param string $key
+     */
+    private function assertParameter($value, $key)
+    {
+        $this->assertEquals($value, $this->configuration->getParameter($key), sprintf('%s parameter is correct', $key));
+    }
+
+    /**
+     * @param string $id
+     */
+    private function assertHasDefinition($id)
+    {
+        $this->assertTrue(($this->configuration->hasDefinition($id) ? : $this->configuration->hasAlias($id)));
+    }
+
+    /**
+     * @param string $id
+     */
+    private function assertNotHasDefinition($id)
+    {
+        $this->assertFalse(($this->configuration->hasDefinition($id) ? : $this->configuration->hasAlias($id)));
+    }
+}