[playframework#954] Enhance FunctionalTest to give access to renderArgs

documentation/manual/test.textile

@@ -32,7 +32,7 @@ public class MyTest extends UnitTest {
 
 h3. Functional test
 
-A functional test is written using JUnit. In this kind of test you can test your application by accessing directly the controller objects. 
+A functional test is written using JUnit. In this kind of test you can test your application by accessing directly the controller objects.
 
 Here is an example of a Functional test:
 
@@ -51,6 +51,16 @@ public class ApplicationTest extends FunctionalTest {
 
 }
 
+Using the @renderArgs()@ method, you can also get direct access to the arguments passed to the view, instead of having to make assertions about the response itself.  For example:
+
+bc. @Test
+public void testUserIsFoundAndPassedToView() {
+    Response response = POST("/user/find?name=mark&dob=18011977")
+    assertThat(renderArgs("user"), is(notNullValue());
+    User user = (User) renderArgs("user");
+    assertThat(user.name, is("mark"));
+}
+
 h3. Selenium test
 
 Acceptance tests are written using Selenium. Here you can test your application by running it in an automated browser. 

framework/src/play/test/FunctionalTest.java

@@ -23,6 +23,7 @@
 import play.mvc.Http;
 import play.mvc.Http.Request;
 import play.mvc.Http.Response;
+import play.mvc.Scope.RenderArgs;
 
 import com.ning.http.multipart.FilePart;
 import com.ning.http.multipart.MultipartRequestEntity;
@@ -44,6 +45,8 @@ public abstract class FunctionalTest extends BaseTest {
 
     private static Map<String, Http.Cookie> savedCookies; // cookies stored between calls
 
+    private static Map<String, Object> renderArgs = new HashMap<String, Object>();
+
     @Before
     public void clearCookies(){
         savedCookies = null;
@@ -261,8 +264,13 @@ public static void makeRequest(final Request request, final Response response) {
         final Future invocationResult = TestEngine.functionalTestsExecutor.submit(new Invoker.Invocation() {
 
             @Override
-            public void execute() throws Exception {                
+            public void execute() throws Exception {
+            	renderArgs.clear();
                 ActionInvoker.invoke(request, response);
+
+                if(RenderArgs.current().data != null) {
+                	renderArgs.putAll(RenderArgs.current().data);
+                }
             }
 
             @Override
@@ -428,6 +436,10 @@ public static String getContent(Response response) {
             throw new RuntimeException(ex);
         }
     }
+
+    public static Object renderArgs(String name) {
+    	return renderArgs.get(name);
+    }
 
     // Utils
 

samples-and-tests/just-test-cases/test/FunctionalTestTest.java

@@ -87,5 +87,13 @@ public void usingRedirection() {
         assertIsOk(response);
     }
 
+    @Test
+    public void canGetRenderArgs() {
+		Response response = GET("/users/edit");
+        assertIsOk(response);
+        assertNotNull(renderArgs("u"));
+        User u = (User) renderArgs("u");
+        assertEquals("Guillaume", u.name);
+    }
 }