Play framework 2.2.1: Create Http.Context for tests

Question

I\'ve been trying to create an Http.Context for tests using its constructor unsuccessfully. Does anybody see what I\'m doing wrong?

I\'ve looked at the following but

Answer 1

Looks like this seems to have fixed it for me:

@Before
public void setUp() throws Exception {
    Map<String, String> flashData = Collections.emptyMap();
    Map<String, Object> argData = Collections.emptyMap();
    Long id = 2L;
    play.api.mvc.RequestHeader header = mock(play.api.mvc.RequestHeader.class);
    Http.Context context = new Http.Context(id, header, request, flashData, flashData, argData);
    Http.Context.current.set(context);
}

The part that fixes it specifically is:

Http.Context.current.set(context);

Answer 2

Just mocking context class solved the issue

@Before
public void setUp() throws Exception {
    Http.Context context = mock(Http.Context.class);
    Http.Context.current.set(context);
}

Answer 3

As a combination of the other answers:

In build.sbt:

libraryDependencies += "org.mockito" % "mockito-core" % "1.10.19" % "test"

In your test class:

import play.mvc.Http;
import static org.mockito.Mockito.*;

@Before
public void setUp() throws Exception {
    Http.Context context = mock(Http.Context.class);
    Http.Flash flash = mock(Http.Flash.class);
    when(context.flash()).thenReturn(flash);
    Http.Context.current.set(context);
}

If you need more, just Mockito's functionalities. In case you are seeing any exceptions, just inspect the compiled code. IN my case, it was in target/scala-2.11/twirl/main/views/html/main.template.scala.

Answer 4

Just to provide an alternative using Mockito, only mocking just what you need (no manual instantiating of any class):

private Http.Context getMockContext() {
    Http.Request mockRequest = mock(Http.Request.class);
    when(mockRequest.remoteAddress()).thenReturn("127.0.0.1");
    when(mockRequest.getHeader("User-Agent")).thenReturn("mocked user-agent");

    // ... and so on. Mock precisely what you need, then add it to your mocked Context

    Http.Context mockContext = mock(Http.Context.class);
    when(mockContext.request()).thenReturn(mockRequest);
    when(mockContext.lang()).thenReturn(Lang.forCode("en"));

    return mockContext;
}

You could also verify if those fields have been used:

@Test
public void testMockContext() {
    final Http.Context mockContext = getMockContext();

    assertThat(mockContext.request()).isNotNull();
    verify(mockContext).request();

    final String remoteAddress = mockContext.request().remoteAddress();
    assertThat(remoteAddress).isNotNull();
    assertThat(remoteAddress).isEqualTo("127.0.0.1");
    verify(mockContext.request()).remoteAddress();
}

Don't forget to import static org.mockito.Mockito.*