Add unit tests

Author: jetsaii

src/main/java/leetcode/api/StatsResponse.java

@@ -86,4 +86,13 @@ public int getContributionPoints() {
     public int getReputation() {
         return reputation;
     }
+
+    public boolean equals(StatsResponse s) {
+        // Compared with itself
+        if (s == this) {
+            return true;
+        }
+
+        return status.equals(s.getStatus()) && message.equals(s.getMessage()) && totalSolved == s.getTotalSolved() && totalQuestions == s.getTotalQuestions() && easySolved == s.getEasySolved() && totalEasy == s.getTotalEasy() && mediumSolved == s.getMediumSolved() && totalMedium == s.getTotalMedium() && hardSolved == s.getHardSolved() && totalHard == s.getTotalHard() && acceptanceRate == s.getAcceptanceRate() && ranking == s.getRanking() && contributionPoints == s.getContributionPoints() && reputation == s.getReputation();
+    }
 }

src/test/java/leetcode/api/StatsResponseTests.java

@@ -0,0 +1,92 @@
+package leetcode.api;
+
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+public class StatsResponseTests {
+    StatsResponse s = new StatsResponse("success", "retrieved", 1, 2, 3, 4, 5, 6, 7, 8, (float) 99.99, 10, 11, 12);
+
+    @Test
+    void statusCorrect() {
+        assertEquals("success", s.getStatus());
+    }
+
+    @Test
+    void messageCorrect() {
+        assertEquals("retrieved", s.getMessage());
+    }
+
+    @Test
+    void totalSolvedCorrect() {
+        assertEquals(1, s.getTotalSolved());
+    }
+
+    @Test
+    void totalQuestionsCorrect() {
+        assertEquals(2, s.getTotalQuestions());
+    }
+
+    @Test
+    void easySolvedCorrect() {
+        assertEquals(3, s.getEasySolved());
+    }
+
+    @Test
+    void totalEasyCorrect() {
+        assertEquals(4, s.getTotalEasy());
+    }
+
+    @Test
+    void mediumSolvedCorrect() {
+        assertEquals(5, s.getMediumSolved());
+    }
+
+    @Test
+    void totalMediumCorrect() {
+        assertEquals(6, s.getTotalMedium());
+    }
+
+    @Test
+    void hardSolvedCorrect() {
+        assertEquals(7, s.getHardSolved());
+    }
+
+    @Test
+    void totalHardCorrect() {
+        assertEquals(8, s.getTotalHard());
+    }
+
+    @Test
+    void acceptanceCorrect() {
+        assertEquals((float) 99.99, s.getAcceptanceRate());
+    }
+
+    @Test
+    void rankingCorrect() {
+        assertEquals(10, s.getRanking());
+    }
+
+    @Test
+    void contributionPointsCorrect() {
+        assertEquals(11, s.getContributionPoints());
+    }
+
+    @Test
+    void reputationCorrect() {
+        assertEquals(12, s.getReputation());
+    }
+
+    @Test
+    void sameRefEqualCorrect() {
+        assertEquals(s, s);
+    }
+
+    @Test
+    void sameValEqualCorrect() {
+        StatsResponse copy = new StatsResponse("success", "retrieved", 1, 2, 3, 4, 5, 6, 7, 8, (float) 99.99, 10, 11, 12);
+        assertTrue(s.equals(copy));
+    }
+}

src/test/java/leetcode/api/UserControllerTests.java

@@ -1,4 +1,52 @@
 package leetcode.api;
 
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.mockito.Mockito.when;
+import org.springframework.test.web.servlet.MvcResult;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.test.web.servlet.MockMvc;
+
+@WebMvcTest(UserController.class)
 public class UserControllerTests {
+    @Autowired
+    private MockMvc mockMvc;
+
+    @MockBean
+    private StatsService service;
+
+
+    @Test
+    void validUsername() throws Exception {
+        StatsResponse mockResponse = new StatsResponse("success", "retrieved", 1, 2,3, 4, 5, 6, 7, 8, (float) 99.99, 10, 11, 12);
+        when(service.getStats("user_exists")).thenReturn(mockResponse);
+
+        MvcResult result = mockMvc.perform(get("/user_exists")).andExpect(status().isOk()).andReturn();
+        String resultStr = result.getResponse().getContentAsString();
+        String expected = "{\"status\":\"success\",\"message\":\"retrieved\",\"totalSolved\":1,\"totalQuestions\":2,\"easySolved\":3,\"totalEasy\":4,\"mediumSolved\":5,\"totalMedium\":6,\"hardSolved\":7,\"totalHard\":8,\"acceptanceRate\":99.99,\"ranking\":10,\"contributionPoints\":11,\"reputation\":12}";
+        assertEquals(resultStr, expected);
+    }
+
+    @Test
+    void noUsername() throws Exception {
+        MvcResult result = mockMvc.perform(get("/")).andExpect(status().isOk()).andReturn();
+        String resultStr = result.getResponse().getContentAsString();
+        String expected = "{\"status\":\"error\",\"message\":\"please enter your username (ex: leetcode-stats-api.herokuapp.com/LeetCodeUsername)\",\"totalSolved\":0,\"totalQuestions\":0,\"easySolved\":0,\"totalEasy\":0,\"mediumSolved\":0,\"totalMedium\":0,\"hardSolved\":0,\"totalHard\":0,\"acceptanceRate\":0.0,\"ranking\":0,\"contributionPoints\":0,\"reputation\":0}";
+        assertEquals(resultStr, expected);
+    }
+
+    @Test
+    void nonValidUsername() throws Exception {
+        StatsResponse mockResponse = new StatsResponse("error", "user does not exist", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+        when(service.getStats("user_does_not_exist")).thenReturn(mockResponse);
+
+        MvcResult result = mockMvc.perform(get("/user_does_not_exist")).andExpect(status().isOk()).andReturn();
+        String resultStr = result.getResponse().getContentAsString();
+        String expected = "{\"status\":\"error\",\"message\":\"user does not exist\",\"totalSolved\":0,\"totalQuestions\":0,\"easySolved\":0,\"totalEasy\":0,\"mediumSolved\":0,\"totalMedium\":0,\"hardSolved\":0,\"totalHard\":0,\"acceptanceRate\":0.0,\"ranking\":0,\"contributionPoints\":0,\"reputation\":0}";
+        assertEquals(resultStr, expected);
+    }
 }