Add tests for GET /notes

src/test/java/com/seanstarkey/notesvault/controller/NoteListingControllerTest.java

@@ -0,0 +1,79 @@
+/**
+ * NoteListingControllerTest.java
+ *
+ * API-level tests for authenticated note listing behavior.
+ */
+package com.seanstarkey.notesvault.controller;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.http.HttpHeaders;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.UUID;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+/**
+ * Verifies GET /notes through the real Spring MVC, Security, JPA, validation,
+ * and Flyway-backed H2 application stack.
+ */
+@SpringBootTest
+@AutoConfigureMockMvc
+@Transactional
+class NoteListingControllerTest extends ControllerApiTestSupport {
+
+    /*
+     * Test: authenticated users can list owned and shared notes.
+     * Verifies that GET /notes returns notes owned by the bearer token subject,
+     * notes explicitly shared with that user as read-only, and no unrelated notes.
+     */
+    @Test
+    void listNotesReturnsOwnedAndSharedNotesOnly() throws Exception {
+        register("alice", "secret123");
+        register("bob", "secret456");
+        register("charlie", "secret789");
+        String aliceToken = jwtUtil.generateToken("alice");
+        String bobToken = jwtUtil.generateToken("bob");
+        String charlieToken = jwtUtil.generateToken("charlie");
+
+        UUID sharedNoteId = createNote(aliceToken, "Alice Shared", "Bob may read this");
+        UUID bobNoteId = createNote(bobToken, "Bob Private", "Bob owns this");
+        UUID charlieNoteId = createNote(charlieToken, "Charlie Private", "Bob cannot see this");
+
+        shareWith(sharedNoteId, "bob");
+
+        String responseBody = mockMvc.perform(get("/notes")
+                .header(HttpHeaders.AUTHORIZATION, "Bearer " + bobToken))
+            .andExpect(status().isOk())
+            .andExpect(jsonPath("$").isArray())
+            .andExpect(jsonPath("$.length()").value(2))
+            .andReturn()
+            .getResponse()
+            .getContentAsString();
+
+        assertThat(responseBody)
+            .contains(bobNoteId.toString())
+            .contains(sharedNoteId.toString())
+            .contains("\"access\":\"OWNER\"")
+            .contains("\"access\":\"SHARED_READ\"")
+            .doesNotContain(charlieNoteId.toString())
+            .doesNotContain("Charlie Private");
+    }
+
+    /*
+     * Test: note listing requires authentication.
+     * Verifies that GET /notes is protected by the JWT security chain and
+     * returns HTTP 401 when no bearer token is supplied.
+     */
+    @Test
+    void listNotesRequiresBearerToken() throws Exception {
+        mockMvc.perform(get("/notes"))
+            .andExpect(status().isUnauthorized())
+            .andExpect(jsonPath("$.error").value("Unauthorized"));
+    }
+}