UserControllerTest.java

package com.piggymetrics.auth.controller;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.piggymetrics.auth.AuthApplication;
import com.piggymetrics.auth.domain.User;
import com.piggymetrics.auth.service.UserService;
import com.sun.security.auth.UserPrincipal;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.springframework.boot.test.SpringApplicationConfiguration;
import org.springframework.http.MediaType;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.web.WebAppConfiguration;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;

import static org.mockito.MockitoAnnotations.initMocks;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;

@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = AuthApplication.class)
@WebAppConfiguration
public class UserControllerTest {

	private static final ObjectMapper mapper = new ObjectMapper();

	@InjectMocks
	private UserController accountController;

	@Mock
	private UserService userService;

	private MockMvc mockMvc;

	@Before
	public void setup() {
		initMocks(this);
		this.mockMvc = MockMvcBuilders.standaloneSetup(accountController).build();
	}

	@Test
	public void shouldCreateNewUser() throws Exception {

		final User user = new User();
		user.setUsername("test");
		user.setPassword("password");

		String json = mapper.writeValueAsString(user);

		mockMvc.perform(post("/users").contentType(MediaType.APPLICATION_JSON).content(json))
				.andExpect(status().isOk());
	}

	@Test
	public void shouldFailWhenUserIsNotValid() throws Exception {

		final User user = new User();
		user.setUsername("t");
		user.setPassword("p");

		mockMvc.perform(post("/users"))
				.andExpect(status().isBadRequest());
	}

	@Test
	public void shouldReturnCurrentUser() throws Exception {
		mockMvc.perform(get("/users/current").principal(new UserPrincipal("test")))
				.andExpect(jsonPath("$.name").value("test"))
				.andExpect(status().isOk());
	}
}