diff --git a/.github/workflows/_reusable-eng-tools-test.yaml b/.github/workflows/_reusable-eng-tools-test.yaml
index bf2b2d80b7b6..63e6859de05d 100644
--- a/.github/workflows/_reusable-eng-tools-test.yaml
+++ b/.github/workflows/_reusable-eng-tools-test.yaml
@@ -8,6 +8,9 @@ on:
         description: Name of package under eng/tools
         required: true
         type: string
+      sparse-checkout-paths:
+        description: Paths for sparse checkout
+        type: string
 
 jobs:
   test:
@@ -24,9 +27,15 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
+      - if: runner.os == 'Windows'
+        run: git config --global core.longpaths true
+        shell: pwsh
+
       - uses: actions/checkout@v4
         with:
-          sparse-checkout: eng
+          sparse-checkout: |
+            eng
+            ${{ inputs.sparse-checkout-paths }}
 
       - name: Use Node ${{ matrix.node-version }}.x
         uses: actions/setup-node@v4
diff --git a/.github/workflows/tsp-client-test.yaml b/.github/workflows/tsp-client-test.yaml
new file mode 100644
index 000000000000..a8b7a7e45b6f
--- /dev/null
+++ b/.github/workflows/tsp-client-test.yaml
@@ -0,0 +1,28 @@
+name: tsp-client - Test
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    paths:
+      - package-lock.json
+      - package.json
+      - tsconfig.json
+      - .github/workflows/_reusable-eng-tools-test.yaml
+      - .github/workflows/tsp-client-test.yaml
+      - eng/tools/package.json
+      - eng/tools/tsconfig.json
+      - eng/tools/tsp-client/**
+      - specification/keyvault
+      - specification/sphere
+
+jobs:
+  tsp-client:
+    uses: ./.github/workflows/_reusable-eng-tools-test.yaml
+    with:
+      package: tsp-client-tests
+      sparse-checkout-paths: |
+        specification/common-types
+        specification/keyvault
+        specification/sphere
diff --git a/eng/tools/package.json b/eng/tools/package.json
index 1c69ffb902f1..88119fc74c3b 100644
--- a/eng/tools/package.json
+++ b/eng/tools/package.json
@@ -2,6 +2,7 @@
   "name": "azure-rest-api-specs-eng-tools",
   "devDependencies": {
     "@azure-tools/suppressions": "file:suppressions",
+    "@azure-tools/tsp-client-tests": "file:tsp-client-tests",
     "@azure-tools/typespec-requirement": "file:typespec-requirement",
     "@azure-tools/typespec-validation": "file:typespec-validation"
   },
diff --git a/eng/tools/tsp-client-tests/package.json b/eng/tools/tsp-client-tests/package.json
new file mode 100644
index 000000000000..3a56644a56c0
--- /dev/null
+++ b/eng/tools/tsp-client-tests/package.json
@@ -0,0 +1,20 @@
+{
+  "name": "@azure-tools/tsp-client-tests",
+  "private": true,
+  "type": "module",
+  "devDependencies": {
+    "@types/node": "^18.19.31",
+    "execa": "^9.3.0",
+    "typescript": "~5.4.5",
+    "vitest": "^1.6.0"
+  },
+  "scripts": {
+    "build": "tsc",
+    "postinstall": "npm run build",
+    "test": "vitest",
+    "test:ci": "vitest run --reporter=verbose"
+  },
+  "engines": {
+    "node": ">= 18.0.0"
+  }
+}
diff --git a/eng/tools/tsp-client-tests/test/tsp-client.test.ts b/eng/tools/tsp-client-tests/test/tsp-client.test.ts
new file mode 100644
index 000000000000..501ceb2481a7
--- /dev/null
+++ b/eng/tools/tsp-client-tests/test/tsp-client.test.ts
@@ -0,0 +1,72 @@
+import { execa } from "execa";
+import { access, constants, mkdir, rm } from "fs/promises";
+import { dirname, join } from "path";
+import { ExpectStatic, test } from "vitest";
+
+const repoRoot = join(__dirname, "..", "..", "..", "..");
+
+async function tspClient(...args: string[]) {
+  const allArgs = ["exec", "--no", "--", "tsp-client"].concat(args);
+
+  console.log(`${repoRoot}$ npm ${allArgs.join(" ")}`);
+
+  return await execa("npm", allArgs, { all: true, cwd: repoRoot, reject: false });
+}
+
+async function convert(expect: ExpectStatic, readme: string) {
+  const specFolder = dirname(dirname(join(repoRoot, readme)));
+  const outputFolder = join(specFolder, "Test.TspClientConvert");
+
+  try {
+    await mkdir(outputFolder);
+  } catch {
+    // Delete and retry
+    await rm(outputFolder, { recursive: true, force: true });
+    await mkdir(outputFolder);
+  }
+
+  try {
+    const { stdout, all, exitCode } = await tspClient(
+      "convert",
+      "--no-prompt",
+      "--swagger-readme",
+      readme,
+      "-o",
+      outputFolder,
+      readme.includes("resource-manager") ? "--arm" : "",
+    );
+
+    expect(stdout).toContain("Converting");
+    expect(exitCode, all).toBe(0);
+
+    const tspConfigYaml = join(outputFolder, "tspconfig.yaml");
+    await access(tspConfigYaml, constants.R_OK);
+    console.log(`File exists: ${tspConfigYaml}`);
+
+    const mainTsp = join(outputFolder, "main.tsp");
+    await access(mainTsp, constants.R_OK);
+    console.log(`File exists: ${mainTsp}`);
+  } finally {
+    await rm(outputFolder, { recursive: true, force: true });
+  }
+
+  // Ensure outputFolder is deleted
+  expect(() => access(outputFolder)).rejects.toThrowError();
+}
+
+// TODO: Convert to `test.concurrent()` once Azure/azure-sdk-tools#8610 is merged,
+// which should fix race condition bug calling `npx autorest`.
+test("Usage", async ({ expect }) => {
+  const { stdout, exitCode } = await tspClient();
+
+  expect(stdout).toContain("Usage");
+  expect(exitCode).not.toBe(0);
+});
+
+test("Convert keyvault/data-plane", async ({ expect }) => {
+  await convert(expect, "specification/keyvault/data-plane/readme.md");
+});
+
+test("Convert sphere/resource-manager", async ({ expect }) => {
+  await convert(expect, "specification/sphere/resource-manager/readme.md");
+});
diff --git a/eng/tools/tsp-client-tests/tsconfig.json b/eng/tools/tsp-client-tests/tsconfig.json
new file mode 100644
index 000000000000..ec6d6640928a
--- /dev/null
+++ b/eng/tools/tsp-client-tests/tsconfig.json
@@ -0,0 +1,6 @@
+{
+  "extends": "../tsconfig.json",
+  "compilerOptions": {
+    "outDir": "./dist",
+  }
+}
diff --git a/eng/tools/tsp-client-tests/vite.config.ts b/eng/tools/tsp-client-tests/vite.config.ts
new file mode 100644
index 000000000000..56e16cce625c
--- /dev/null
+++ b/eng/tools/tsp-client-tests/vite.config.ts
@@ -0,0 +1,7 @@
+import { defineConfig } from "vite";
+
+export default defineConfig({
+  test: {
+    testTimeout: 240000,
+  },
+});
diff --git a/eng/tools/typespec-requirement/package.json b/eng/tools/typespec-requirement/package.json
index e82d0d39da50..6872c5db6c19 100644
--- a/eng/tools/typespec-requirement/package.json
+++ b/eng/tools/typespec-requirement/package.json
@@ -4,7 +4,6 @@
   "type": "module",
   "devDependencies": {
     "@types/node": "^18.19.31",
-    "@vitest/coverage-v8": "^1.6.0",
     "execa": "^9.3.0",
     "typescript": "~5.4.5",
     "vitest": "^1.6.0"
@@ -13,7 +12,7 @@
     "build": "tsc",
     "postinstall": "npm run build",
     "test": "vitest",
-    "test:ci": "vitest run --coverage --reporter=verbose"
+    "test:ci": "vitest run --reporter=verbose"
   },
   "engines": {
     "node": ">= 18.0.0"
diff --git a/package-lock.json b/package-lock.json
index d4cafb68ee5d..8e61301e8ffa 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -32,6 +32,7 @@
       "dev": true,
       "devDependencies": {
         "@azure-tools/suppressions": "file:suppressions",
+        "@azure-tools/tsp-client-tests": "file:tsp-client-tests",
         "@azure-tools/typespec-requirement": "file:typespec-requirement",
         "@azure-tools/typespec-validation": "file:typespec-validation"
       }
@@ -307,13 +308,26 @@
         "node": ">= 18.0.0"
       }
     },
+    "eng/tools/tsp-client-tests": {
+      "name": "@azure-tools/tsp-client-tests",
+      "dev": true,
+      "hasInstallScript": true,
+      "devDependencies": {
+        "@types/node": "^18.19.31",
+        "execa": "^9.3.0",
+        "typescript": "~5.4.5",
+        "vitest": "^1.6.0"
+      },
+      "engines": {
+        "node": ">= 18.0.0"
+      }
+    },
     "eng/tools/typespec-requirement": {
       "name": "@azure-tools/typespec-requirement",
       "dev": true,
       "hasInstallScript": true,
       "devDependencies": {
         "@types/node": "^18.19.31",
-        "@vitest/coverage-v8": "^1.6.0",
         "execa": "^9.3.0",
         "typescript": "~5.4.5",
         "vitest": "^1.6.0"
@@ -490,6 +504,10 @@
       "resolved": "eng/tools/suppressions",
       "link": true
     },
+    "node_modules/@azure-tools/tsp-client-tests": {
+      "resolved": "eng/tools/tsp-client-tests",
+      "link": true
+    },
     "node_modules/@azure-tools/typespec-apiview": {
       "version": "0.4.9",
       "resolved": "https://registry.npmjs.org/@azure-tools/typespec-apiview/-/typespec-apiview-0.4.9.tgz",