public function testRender()
 {
     $template = $this->composeTemplate();
     $this->testInstance->setTemplate($template);
     $this->viewMock->expects($this->any())->method('getShared')->will($this->returnValue([]));
     $this->assertSame($this->testInstance->render(), (string) $this->testInstance);
     $this->assertSame('6', $this->testInstance->render(['a' => 6]));
     $this->testInstance->setTemplate($this->composeTemplate() . "{{\$b}}");
     try {
         $this->testInstance->render();
     } catch (\Exception $e) {
         $this->assertTrue($e instanceof \Exception);
     }
 }