test: Introduce AdkWebServerTest

dev/src/test/java/com/google/adk/web/AdkWebServerTest.java

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+/*
+ * Copyright 2025 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.adk.web;
+
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.delete;
+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.content;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+import org.hamcrest.Matchers;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.http.MediaType;
+import org.springframework.test.web.servlet.MockMvc;
+
+/**
+ * Integration tests for the {@link AdkWebServer}.
+ *
+ * <p>These tests use MockMvc to simulate HTTP requests and then verify the expected responses from
+ * the ADK API server.
+ *
+ * @author <a href="http://www.vorburger.ch">Michael Vorburger.ch</a>, with Google Gemini Code
+ *     Assist in Agent mode
+ */
+@SpringBootTest
+@AutoConfigureMockMvc
+public class AdkWebServerTest {
+
+  @Autowired private MockMvc mockMvc;
+
+  @Test
+  public void listApps_shouldReturnOkAndEmptyList() throws Exception {
+    mockMvc.perform(get("/list-apps")).andExpect(status().isOk()).andExpect(content().json("[]"));
+  }
+
+  @Test
+  public void createSession_shouldReturnCreated() throws Exception {
+    var result =
+        mockMvc
+            .perform(
+                post("/apps/test-app/users/test-user/sessions")
+                    .contentType(MediaType.APPLICATION_JSON)
+                    .content("{}"))
+            .andExpect(status().isOk())
+            .andExpect(jsonPath("$.appName", Matchers.is("test-app")))
+            .andExpect(jsonPath("$.userId", Matchers.is("test-user")))
+            .andReturn();
+
+    var responseBody = result.getResponse().getContentAsString();
+    var sessionId = com.jayway.jsonpath.JsonPath.read(responseBody, "$.id");
+    mockMvc.perform(delete("/apps/test-app/users/test-user/sessions/" + sessionId));
+  }
+
+  @Test
+  public void createSessionWithId_shouldReturnCreated() throws Exception {
+    try {
+      mockMvc
+          .perform(
+              post("/apps/test-app/users/test-user/sessions/test-session")
+                  .contentType(MediaType.APPLICATION_JSON)
+                  .content("{}"))
+          .andExpect(status().isOk())
+          .andExpect(jsonPath("$.appName", Matchers.is("test-app")))
+          .andExpect(jsonPath("$.userId", Matchers.is("test-user")))
+          .andExpect(jsonPath("$.id", Matchers.is("test-session")));
+    } finally {
+      mockMvc.perform(delete("/apps/test-app/users/test-user/sessions/test-session"));
+    }
+  }
+
+  @Test
+  public void deleteSession_shouldReturnNoContent() throws Exception {
+    mockMvc.perform(
+        post("/apps/test-app/users/test-user/sessions/test-session-to-delete")
+            .contentType(MediaType.APPLICATION_JSON)
+            .content("{}"));
+
+    mockMvc
+        .perform(delete("/apps/test-app/users/test-user/sessions/test-session-to-delete"))
+        .andExpect(status().isNoContent());
+  }
+
+  @Test
+  public void getSession_shouldReturnOk() throws Exception {
+    mockMvc.perform(
+        post("/apps/test-app/users/test-user/sessions/test-session")
+            .contentType(MediaType.APPLICATION_JSON)
+            .content("{}"));
+
+    try {
+      mockMvc
+          .perform(get("/apps/test-app/users/test-user/sessions/test-session"))
+          .andExpect(status().isOk())
+          .andExpect(jsonPath("$.appName", Matchers.is("test-app")))
+          .andExpect(jsonPath("$.userId", Matchers.is("test-user")))
+          .andExpect(jsonPath("$.id", Matchers.is("test-session")));
+    } finally {
+      mockMvc.perform(delete("/apps/test-app/users/test-user/sessions/test-session"));
+    }
+  }
+
+  @Test
+  public void listSessions_shouldReturnOk() throws Exception {
+    mockMvc.perform(
+        post("/apps/test-app/users/test-user/sessions/test-session-1")
+            .contentType(MediaType.APPLICATION_JSON)
+            .content("{}"));
+    mockMvc.perform(
+        post("/apps/test-app/users/test-user/sessions/test-session-2")
+            .contentType(MediaType.APPLICATION_JSON)
+            .content("{}"));
+
+    mockMvc
+        .perform(get("/apps/test-app/users/test-user/sessions"))
+        .andExpect(status().isOk())
+        .andExpect(
+            jsonPath(
+                "$[?(@.id == 'test-session-1' || @.id == 'test-session-2')].id",
+                Matchers.containsInAnyOrder("test-session-1", "test-session-2")));
+
+    mockMvc.perform(delete("/apps/test-app/users/test-user/sessions/test-session-1"));
+    mockMvc.perform(delete("/apps/test-app/users/test-user/sessions/test-session-2"));
+  }
+}