feat(controller): add ItemController class with GET /items endpoint a…

src/main/java/com/mrxgrc/inventory/InventoryApiApplication.java

@@ -1,3 +1,4 @@
+// Main entry point of the application
 package com.mrxgrc.inventory;
 
 import org.springframework.boot.SpringApplication;

src/main/java/com/mrxgrc/inventory/ItemController.java

@@ -0,0 +1,13 @@
+package com.mrxgrc.inventory;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class ItemController {
+
+    @GetMapping("/items")
+    public String getItems() {
+        return "List of items";
+    }
+}

src/test/java/com/mrxgrc/inventory/InventoryApiApplicationTests.java

@@ -1,3 +1,4 @@
+// Generated by the protocol buffer compiler to check spring application context starts without errors.
 package com.mrxgrc.inventory;
 
 import org.junit.jupiter.api.Test;

src/test/java/com/mrxgrc/inventory/ItemControllerTest.java

@@ -0,0 +1,26 @@
+package com.mrxgrc.inventory;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.test.web.servlet.MockMvc;
+
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+@WebMvcTest(ItemController.class)
+public class ItemControllerTest {
+
+    @Autowired
+    private MockMvc mockMvc;
+
+    @Test
+    void getItemsReturnsListofItems() throws Exception{
+        this.mockMvc.perform(get("/items"))
+                .andExpect(status().isOk())
+                .andExpect(content().string("List of items"));
+
+
+    }
+}