add test cases for clientNamespace on anonymous models

packages/typespec-client-generator-core/test/decorators/client-namespace.test.ts

@@ -1,4 +1,5 @@
-import { strictEqual } from "assert";
+import { AzureCoreTestLibrary } from "@azure-tools/typespec-azure-core/testing";
+import { ok, strictEqual } from "assert";
 import { beforeEach, describe, it } from "vitest";
 import { SdkClientType, SdkServiceOperation } from "../../src/interfaces.js";
 import { SdkTestRunner, createSdkTestRunner } from "../test-host.js";
@@ -24,6 +25,40 @@ describe("typespec-client-generator-core: @clientNamespace", () => {
       strictEqual(runner.context.sdkPackage.models[0].clientNamespace, "TestService");
     });
 
+    it("namespace on anonymous model", async () => {
+      await runner.compileWithBuiltInService(`
+        model Test {
+          prop: {
+            p1: string;
+            p2: int32;
+          }
+        }
+
+        op test(): Test;
+        `);
+
+      const models = runner.context.sdkPackage.models;
+      const testModel = models.find((m) => m.name === "Test");
+      ok(testModel);
+      const anonymousModel = testModel?.properties[0].type;
+      ok(anonymousModel);
+      strictEqual(anonymousModel.kind, "model");
+      strictEqual(anonymousModel.clientNamespace, "TestService");
+    });
+
+    it("namespace on alias", async () => {
+      await runner.compileWithBuiltInService(
+        `
+      alias Test = {
+        prop: string;
+      };
+
+      op test(): Test;
+      `,
+      );
+      strictEqual(runner.context.sdkPackage.models[0].clientNamespace, "TestService");
+    });
+
     it("namespace on enum", async () => {
       await runner.compileWithBuiltInService(
         `
@@ -37,6 +72,67 @@ describe("typespec-client-generator-core: @clientNamespace", () => {
       strictEqual(runner.context.sdkPackage.enums[0].clientNamespace, "TestService");
     });
 
+    it("namespace on anonymous response in a template", async () => {
+      runner = await createSdkTestRunner({
+        librariesToAdd: [AzureCoreTestLibrary],
+        autoUsings: ["Azure.Core", "Azure.Core.Traits"],
+        emitterName: "@azure-tools/typespec-java",
+      });
+      await runner.compileWithBuiltInAzureCoreService(`
+          alias ServiceTraits = SupportsRepeatableRequests &
+          SupportsConditionalRequests &
+          SupportsClientRequestId;
+
+          @route("service-status")
+          op getServiceStatus is RpcOperation<
+            {},
+            {
+              statusString: string;
+            },
+            ServiceTraits
+          >;
+        `);
+
+      const method = runner.context.sdkPackage.clients[0].methods[0];
+      strictEqual(method.kind, "basic");
+      const responseType = method.response.type;
+      ok(responseType);
+      strictEqual(responseType.kind, "model");
+      // TODO -- this is currently empty which might be an issue, tracking in @typespec/http library issue https://github.com/microsoft/typespec/issues/5664
+      strictEqual(responseType.clientNamespace, "");
+    });
+
+    it("namespace on concrete response in a template", async () => {
+      runner = await createSdkTestRunner({
+        librariesToAdd: [AzureCoreTestLibrary],
+        autoUsings: ["Azure.Core", "Azure.Core.Traits"],
+        emitterName: "@azure-tools/typespec-java",
+      });
+      await runner.compileWithBuiltInAzureCoreService(`
+          alias ServiceTraits = SupportsRepeatableRequests &
+          SupportsConditionalRequests &
+          SupportsClientRequestId;
+
+          model ServiceStatus {
+            statusString: string;
+          }
+
+          @route("service-status")
+          op getServiceStatus is RpcOperation<
+            {},
+            ServiceStatus,
+            ServiceTraits
+          >;
+        `);
+
+      const method = runner.context.sdkPackage.clients[0].methods[0];
+      strictEqual(method.kind, "basic");
+      const responseType = method.response.type;
+      ok(responseType);
+      strictEqual(responseType.kind, "model");
+      strictEqual(responseType.clientNamespace, "My.Service");
+    });
+
     it("namespace on union", async () => {
       await runner.compileWithBuiltInService(
         `