Added Twig template functions

6 files changed, 281 insertions, 2 deletions

diff --git a/tests/Unit/Renderer/Twig/Extensions/ConfigTest.php b/tests/Unit/Renderer/Twig/Extensions/ConfigTest.php
new file mode 100644
index 00000000..6a9cb78a
--- /dev/null
+++ b/tests/Unit/Renderer/Twig/Extensions/ConfigTest.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace Engelsystem\Test\Unit\Renderer\Twig\Extensions;
+
+use Engelsystem\Config\Config as EngelsystemConfig;
+use Engelsystem\Renderer\Twig\Extensions\Config;
+use PHPUnit\Framework\MockObject\MockObject;
+
+class ConfigTest extends ExtensionTest
+{
+    /**
+     * @covers \Engelsystem\Renderer\Twig\Extensions\Config::__construct
+     * @covers \Engelsystem\Renderer\Twig\Extensions\Config::getFunctions
+     */
+    public function testGetFunctions()
+    {
+        /** @var EngelsystemConfig|MockObject $config */
+        $config = $this->createMock(EngelsystemConfig::class);
+
+        $extension = new Config($config);
+        $functions = $extension->getFunctions();
+
+        $this->assertExtensionExists('config', [$config, 'get'], $functions);
+    }
+}
diff --git a/tests/Unit/Renderer/Twig/Extensions/ExtensionTest.php b/tests/Unit/Renderer/Twig/Extensions/ExtensionTest.php
new file mode 100644
index 00000000..10f2e69a
--- /dev/null
+++ b/tests/Unit/Renderer/Twig/Extensions/ExtensionTest.php
@@ -0,0 +1,48 @@
+<?php
+
+namespace Engelsystem\Test\Unit\Renderer\Twig\Extensions;
+
+use PHPUnit\Framework\TestCase;
+use Twig_Function as TwigFunction;
+
+abstract class ExtensionTest extends TestCase
+{
+    /**
+     * Assert that a twig function was registered
+     *
+     * @param string         $name
+     * @param callable       $callback
+     * @param TwigFunction[] $functions
+     */
+    protected function assertExtensionExists($name, $callback, $functions)
+    {
+        foreach ($functions as $function) {
+            if ($function->getName() != $name) {
+                continue;
+            }
+
+            $this->assertEquals($callback, $function->getCallable());
+            return;
+        }
+
+        $this->fail(sprintf('Function %s not found', $name));
+    }
+
+    /**
+     * Assert that a global exists
+     *
+     * @param string  $name
+     * @param mixed   $value
+     * @param mixed[] $globals
+     */
+    protected function assertGlobalsExists($name, $value, $globals)
+    {
+        if (isset($globals[$name])) {
+            $this->assertArraySubset([$name => $value], $globals);
+
+            return;
+        }
+
+        $this->fail(sprintf('Global %s not found', $name));
+    }
+}
diff --git a/tests/Unit/Renderer/Twig/Extensions/GlobalsTest.php b/tests/Unit/Renderer/Twig/Extensions/GlobalsTest.php
new file mode 100644
index 00000000..6cc3a4da
--- /dev/null
+++ b/tests/Unit/Renderer/Twig/Extensions/GlobalsTest.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace Engelsystem\Test\Unit\Renderer\Twig\Extensions;
+
+use Engelsystem\Renderer\Twig\Extensions\Globals;
+
+class GlobalsTest extends ExtensionTest
+{
+    /**
+     * @covers \Engelsystem\Renderer\Twig\Extensions\Globals::getGlobals
+     */
+    public function testGetGlobals()
+    {
+        $extension = new Globals();
+        $globals = $extension->getGlobals();
+
+        $this->assertGlobalsExists('user', [], $globals);
+
+        global $user;
+        $user['foo'] = 'bar';
+
+        $globals = $extension->getGlobals();
+        $this->assertGlobalsExists('user', ['foo' => 'bar'], $globals);
+    }
+}
diff --git a/tests/Unit/Renderer/Twig/Extensions/SessionTest.php b/tests/Unit/Renderer/Twig/Extensions/SessionTest.php
new file mode 100644
index 00000000..7ce4dc3a
--- /dev/null
+++ b/tests/Unit/Renderer/Twig/Extensions/SessionTest.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace Engelsystem\Test\Unit\Renderer\Twig\Extensions;
+
+use Engelsystem\Renderer\Twig\Extensions\Session;
+use PHPUnit\Framework\MockObject\MockObject;
+use Symfony\Component\HttpFoundation\Session\Session as SymfonySession;
+
+class SessionTest extends ExtensionTest
+{
+    /**
+     * @covers \Engelsystem\Renderer\Twig\Extensions\Session::__construct
+     * @covers \Engelsystem\Renderer\Twig\Extensions\Session::getFunctions
+     */
+    public function testGetGlobals()
+    {
+        /** @var SymfonySession|MockObject $session */
+        $session = $this->createMock(SymfonySession::class);
+
+        $extension = new Session($session);
+        $functions = $extension->getFunctions();
+
+        $this->assertExtensionExists('session_get', [$session, 'get'], $functions);
+    }
+}
diff --git a/tests/Unit/Renderer/Twig/Extensions/UrlTest.php b/tests/Unit/Renderer/Twig/Extensions/UrlTest.php
new file mode 100644
index 00000000..c7e40bea
--- /dev/null
+++ b/tests/Unit/Renderer/Twig/Extensions/UrlTest.php
@@ -0,0 +1,64 @@
+<?php
+
+namespace Engelsystem\Test\Unit\Renderer\Twig\Extensions;
+
+use Engelsystem\Http\UrlGenerator;
+use Engelsystem\Renderer\Twig\Extensions\Url;
+use PHPUnit\Framework\MockObject\MockObject;
+
+class UrlTest extends ExtensionTest
+{
+    /**
+     * @covers \Engelsystem\Renderer\Twig\Extensions\Url::__construct
+     * @covers \Engelsystem\Renderer\Twig\Extensions\Url::getFunctions
+     */
+    public function testGetGlobals()
+    {
+        /** @var UrlGenerator|MockObject $urlGenerator */
+        $urlGenerator = $this->createMock(UrlGenerator::class);
+
+        $extension = new Url($urlGenerator);
+        $functions = $extension->getFunctions();
+
+        $this->assertExtensionExists('url', [$extension, 'getUrl'], $functions);
+    }
+
+    /**
+     * @return string[][]
+     */
+    public function getUrls()
+    {
+        return [
+            ['/', '/', 'http://foo.bar/'],
+            ['/foo', '/foo', 'http://foo.bar/foo'],
+            ['foo_bar', 'foo-bar', 'http://foo.bar/foo-bar'],
+            ['dolor', 'dolor', 'http://foo.bar/dolor?lorem_ipsum=dolor', ['lorem_ipsum' => 'dolor']],
+        ];
+    }
+
+    /**
+     * @dataProvider getUrls
+     *
+     * @param string $url
+     * @param string $return
+     * @param string $urlTo
+     * @param array  $parameters
+     *
+     * @covers       \Engelsystem\Renderer\Twig\Extensions\Url::getUrl
+     */
+    public function testGetUrl($url, $urlTo, $return, $parameters = [])
+    {
+        /** @var UrlGenerator|MockObject $urlGenerator */
+        $urlGenerator = $this->createMock(UrlGenerator::class);
+
+        $urlGenerator->expects($this->once())
+            ->method('to')
+            ->with($urlTo, $parameters)
+            ->willReturn($return);
+
+        $extension = new Url($urlGenerator);
+        $generatedUrl = $extension->getUrl($url, $parameters);
+
+        $this->assertEquals($return, $generatedUrl);
+    }
+}
diff --git a/tests/Unit/Renderer/TwigServiceProviderTest.php b/tests/Unit/Renderer/TwigServiceProviderTest.php
index ede6fae4..3cd0da4d 100644
--- a/tests/Unit/Renderer/TwigServiceProviderTest.php
+++ b/tests/Unit/Renderer/TwigServiceProviderTest.php
@@ -7,17 +7,90 @@ use Engelsystem\Renderer\TwigLoader;
 use Engelsystem\Renderer\TwigServiceProvider;
 use Engelsystem\Test\Unit\ServiceProviderTest;
 use PHPUnit\Framework\MockObject\MockObject;
+use ReflectionClass as Reflection;
+use stdClass;
 use Twig_Environment as Twig;
+use Twig_ExtensionInterface as ExtensionInterface;
 use Twig_LoaderInterface as TwigLoaderInterface;
 
 class TwigServiceProviderTest extends ServiceProviderTest
 {
     /**
      * @covers \Engelsystem\Renderer\TwigServiceProvider::register
-     * @covers \Engelsystem\Renderer\TwigServiceProvider::registerTwigEngine
+     * @covers \Engelsystem\Renderer\TwigServiceProvider::registerTwigExtensions
      */
     public function testRegister()
     {
+        $app = $this->getApp(['make', 'instance', 'tag']);
+        $class = $this->createMock(stdClass::class);
+
+        $className = 'Foo\Bar\Class';
+        $classAlias = 'twig.extension.foo';
+
+        $app->expects($this->once())
+            ->method('make')
+            ->with('Foo\Bar\Class')
+            ->willReturn($class);
+
+        $app->expects($this->exactly(2))
+            ->method('instance')
+            ->withConsecutive(
+                [$className, $class],
+                [$classAlias, $class]
+            );
+
+        $app->expects($this->once())
+            ->method('tag')
+            ->with($classAlias, ['twig.extension']);
+
+        /** @var TwigServiceProvider|MockObject $serviceProvider */
+        $serviceProvider = $this->getMockBuilder(TwigServiceProvider::class)
+            ->setConstructorArgs([$app])
+            ->setMethods(['registerTwigEngine'])
+            ->getMock();
+        $serviceProvider->expects($this->once())
+            ->method('registerTwigEngine');
+        $this->setExtensionsTo($serviceProvider, ['foo' => 'Foo\Bar\Class']);
+
+        $serviceProvider->register();
+    }
+
+    /**
+     * @covers \Engelsystem\Renderer\TwigServiceProvider::boot
+     */
+    public function testBoot()
+    {
+        /** @var Twig|MockObject $twig */
+        $twig = $this->createMock(Twig::class);
+        /** @var ExtensionInterface|MockObject $firsExtension */
+        $firsExtension = $this->getMockForAbstractClass(ExtensionInterface::class);
+        /** @var ExtensionInterface|MockObject $secondExtension */
+        $secondExtension = $this->getMockForAbstractClass(ExtensionInterface::class);
+
+        $app = $this->getApp(['get', 'tagged']);
+
+        $app->expects($this->once())
+            ->method('get')
+            ->with('twig.environment')
+            ->willReturn($twig);
+        $app->expects($this->once())
+            ->method('tagged')
+            ->with('twig.extension')
+            ->willReturn([$firsExtension, $secondExtension]);
+
+        $twig->expects($this->exactly(2))
+            ->method('addExtension')
+            ->withConsecutive($firsExtension, $secondExtension);
+
+        $serviceProvider = new TwigServiceProvider($app);
+        $serviceProvider->boot();
+    }
+
+    /**
+     * @covers \Engelsystem\Renderer\TwigServiceProvider::registerTwigEngine
+     */
+    public function testRegisterTWigEngine()
+    {
         /** @var TwigEngine|MockObject $htmlEngine */
         $twigEngine = $this->createMock(TwigEngine::class);
         /** @var TwigLoader|MockObject $twigLoader */
@@ -41,12 +114,14 @@ class TwigServiceProviderTest extends ServiceProviderTest
                 $twigEngine
             );
 
-        $app->expects($this->exactly(4))
+        $app->expects($this->exactly(6))
             ->method('instance')
             ->withConsecutive(
                 [TwigLoader::class, $twigLoader],
                 [TwigLoaderInterface::class, $twigLoader],
+                ['twig.loader', $twigLoader],
                 [Twig::class, $twig],
+                ['twig.environment', $twig],
                 ['renderer.twigEngine', $twigEngine]
             );
 
@@ -58,6 +133,23 @@ class TwigServiceProviderTest extends ServiceProviderTest
         $this->setExpects($app, 'tag', ['renderer.twigEngine', ['renderer.engine']]);
 
         $serviceProvider = new TwigServiceProvider($app);
+        $this->setExtensionsTo($serviceProvider, []);
+
         $serviceProvider->register();
     }
+
+    /**
+     * @param TwigServiceProvider $serviceProvider
+     * @param array               $extensions
+     * @throws \ReflectionException
+     */
+    protected function setExtensionsTo($serviceProvider, $extensions)
+    {
+        $reflection = new Reflection(get_class($serviceProvider));
+
+        $property = $reflection->getProperty('extensions');
+        $property->setAccessible(true);
+
+        $property->setValue($serviceProvider, $extensions);
+    }
 }