diff --git a/packages/typespec-ts/package.json b/packages/typespec-ts/package.json
index 27af6a3740..458a63a7aa 100644
--- a/packages/typespec-ts/package.json
+++ b/packages/typespec-ts/package.json
@@ -58,7 +58,7 @@
     "stop-test-server": "npx tsp-spector server stop",
     "unit-test": "npm-run-all --parallel unit-test:rlc unit-test:modular",
     "unit-test:rlc": "cross-env TS_NODE_PROJECT=tsconfig.json mocha -r ts-node/register --experimental-specifier-resolution=node --experimental-modules=true  --timeout 36000 './test/unit/**/*.spec.ts'",
-    "unit-test:modular": "cross-env TS_NODE_PROJECT=tsconfig.test.json NODE_OPTIONS='--max-old-space-size=8192' mocha -r ts-node/register --experimental-specifier-resolution=node --experimental-modules=true  --no-timeout './test/modularUnit/**/*.spec.ts' --reporter-options maxDiffSize=20000",
+    "unit-test:modular": "cross-env TS_NODE_PROJECT=tsconfig.test.json mocha -r ts-node/register --experimental-specifier-resolution=node --experimental-modules=true  --no-timeout './test/modularUnit/**/*.spec.ts' --reporter-options maxDiffSize=20000",
     "regen-docs": "npm run build && tspd doc . --enable-experimental --output-dir ./website/src/content/docs/docs/emitters/clients/typespec-ts/reference --skip-js"
   },
   "author": "Jose Heredia <joheredi@microsoft.com>",
diff --git a/packages/typespec-ts/test/modularUnit/scenarios/operations/operations.md b/packages/typespec-ts/test/modularUnit/scenarios/operations/operations.md
index 0075fb93dd..ef35c9c3e5 100644
--- a/packages/typespec-ts/test/modularUnit/scenarios/operations/operations.md
+++ b/packages/typespec-ts/test/modularUnit/scenarios/operations/operations.md
@@ -1275,4 +1275,85 @@ export function bar(
     { itemName: "tests", nextLinkName: "next" },
   );
 }
+```
+
+# only: should support non-model type as response from TypeSpec
+
+## TypeSpec
+
+```tsp
+import "@typespec/http";
+import "@azure-tools/typespec-client-generator-core";
+using TypeSpec.Http;
+using Azure.ClientGenerator.Core;
+
+@service(#{
+  title: "Test Service"
+})
+namespace testService;
+model ListTestResult is string[];
+    
+model Test {
+  id: string;
+}
+    
+@route("/list-get")
+@post
+op bar(): ListTestResult;
+```
+
+The config would be like:
+
+```yaml
+withRawContent: true
+```
+
+## models
+
+```ts models
+// (file was not generated)
+```
+
+## Operations
+
+```ts operations
+import { testServiceContext as Client } from "./index.js";
+import { BarOptionalParams } from "./options.js";
+import {
+  StreamableMethod,
+  PathUncheckedResponse,
+  createRestError,
+  operationOptionsToRequestParameters,
+} from "@azure-rest/core-client";
+
+export function _barSend(
+  context: Client,
+  options: BarOptionalParams = { requestOptions: {} },
+): StreamableMethod {
+  return context
+    .path("/list-get")
+    .post({
+      ...operationOptionsToRequestParameters(options),
+      headers: { accept: "application/json", ...options.requestOptions?.headers },
+    });
+}
+
+export async function _barDeserialize(result: PathUncheckedResponse): Promise<string[]> {
+  const expectedStatuses = ["200"];
+  if (!expectedStatuses.includes(result.status)) {
+    throw createRestError(result);
+  }
+
+  return result.body.map((p: any) => {
+    return p;
+  });
+}
+
+export async function bar(
+  context: Client,
+  options: BarOptionalParams = { requestOptions: {} },
+): Promise<string[]> {
+  const result = await _barSend(context, options);
+  return _barDeserialize(result);
+}
 ```
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