From f777299e989d3fa8d1ac35cdd2ac4e9fd3193ac9 Mon Sep 17 00:00:00 2001
From: George Fu <kuhe@users.noreply.github.com>
Date: Tue, 11 Nov 2025 20:40:41 -0500
Subject: [PATCH] test(client-cloudwatch): e2e test of protocol selection

---
 .../test/e2e/CloudWatch.e2e.spec.ts           | 51 +++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 clients/client-cloudwatch/test/e2e/CloudWatch.e2e.spec.ts

diff --git a/clients/client-cloudwatch/test/e2e/CloudWatch.e2e.spec.ts b/clients/client-cloudwatch/test/e2e/CloudWatch.e2e.spec.ts
new file mode 100644
index 000000000000..0bbad7991a15
--- /dev/null
+++ b/clients/client-cloudwatch/test/e2e/CloudWatch.e2e.spec.ts
@@ -0,0 +1,51 @@
+import { CloudWatch } from "@aws-sdk/client-cloudwatch";
+import { AwsJson1_0Protocol, AwsQueryProtocol, AwsSmithyRpcV2CborProtocol } from "@aws-sdk/core";
+import { describe, expect, test as it } from "vitest";
+
+describe(CloudWatch.name, () => {
+  const cloudwatch = {
+    cbor: new CloudWatch({
+      region: "us-west-2",
+      protocol: new AwsSmithyRpcV2CborProtocol({
+        defaultNamespace: "com.amazonaws.cloudwatch",
+        awsQueryCompatible: true,
+      }),
+    }),
+    query: new CloudWatch({
+      region: "us-west-2",
+      protocol: new AwsQueryProtocol({
+        defaultNamespace: "com.amazonaws.cloudwatch",
+        /**
+         * Hi security scanners. I see you looking at my xml namespace.
+         * It's not a link, ok? We're not going to make requests over http here.
+         * Thanks.
+         */
+        xmlNamespace: "http://monitoring.amazonaws.com/doc/2010-08-01/",
+        version: "2010-08-01",
+      }),
+    }),
+    json: new CloudWatch({
+      region: "us-west-2",
+      protocol: new AwsJson1_0Protocol({
+        defaultNamespace: "com.amazonaws.cloudwatch",
+        serviceTarget: "GraniteServiceVersion20100801",
+        awsQueryCompatible: true,
+      }),
+    }),
+  };
+
+  it("can make requests with AWS Query protocol", async () => {
+    const dashes = await cloudwatch.query.listDashboards();
+    expect(dashes.DashboardEntries ?? []).toBeInstanceOf(Array);
+  });
+
+  it("can make requests with Smithy RPCv2 CBOR protocol", async () => {
+    const dashes = await cloudwatch.cbor.listDashboards();
+    expect(dashes.DashboardEntries ?? []).toBeInstanceOf(Array);
+  });
+
+  it("can make requests with AWS JSON RPC protocol", async () => {
+    const dashes = await cloudwatch.json.listDashboards();
+    expect(dashes.DashboardEntries ?? []).toBeInstanceOf(Array);
+  });
+});