Added tests to UserREST.login

src/test/java/com/commafeed/frontend/resource/UserRestTest.java

@@ -0,0 +1,64 @@
+package com.commafeed.frontend.resource;
+
+import static org.mockito.Matchers.any;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.verifyZeroInteractions;
+import static org.mockito.Mockito.when;
+
+import javax.servlet.http.HttpSession;
+
+import org.junit.Test;
+
+import com.commafeed.backend.model.User;
+import com.commafeed.backend.service.UserService;
+import com.commafeed.frontend.model.request.LoginRequest;
+import com.google.common.base.Optional;
+
+public class UserRestTest {
+	
+	@Test public void
+	login_should_not_populate_http_session_if_unsuccessfull() {
+		// Absent user
+		Optional<User> absentUser = Optional.absent();
+		
+		// Create UserService partial mock
+		UserService service = mock(UserService.class);
+		when(service.login("user", "password")).thenReturn(absentUser);
+		when(service.login(any(String.class), any(String.class), any(HttpSession.class))).thenCallRealMethod();
+		
+		HttpSession session = mock(HttpSession.class);
+		UserREST userREST = new UserREST(null, null, null, service, null, null, null);
+		
+		LoginRequest req = new LoginRequest();
+		req.setName("user");
+		req.setPassword("password");
+		
+		userREST.login(req, session);
+		
+		verifyZeroInteractions(session);
+	}
+	
+	@Test public void
+	login_should_populate_http_session_if_successfull() {
+		// Create a user
+		User user = new User();
+		
+		// Create UserService partial mock
+		UserService service = mock(UserService.class);
+		when(service.login("user", "password")).thenReturn(Optional.of(user));
+		when(service.login(any(String.class), any(String.class), any(HttpSession.class))).thenCallRealMethod();
+		
+		HttpSession session = mock(HttpSession.class);
+		UserREST userREST = new UserREST(null, null, null, service, null, null, null);
+		
+		LoginRequest req = new LoginRequest();
+		req.setName("user");
+		req.setPassword("password");
+		
+		userREST.login(req, session);
+		
+		verify(session).setAttribute("user", user);
+	}
+
+}