Rewrite test cases in TS

.eslintrc

@@ -40,5 +40,6 @@
                 "avoidEscape": true
             }
         ],
-    },
+        "@typescript-eslint/no-explicit-any": "off"
+    }
 }

.gitignore

@@ -400,6 +400,7 @@ FodyWeavers.xsd
 # bundled folder
 dist/
 dist-esm/
+out/
 types/
 
 # dotenv
@@ -409,4 +410,4 @@ types/
 *.tgz
 
 # examples
-examples/package-lock.json
+examples/package-lock.json

package.json

@@ -17,14 +17,15 @@
     "README.md"
   ],
   "scripts": {
-    "build": "npm run clean && npm run build-cjs && npm run build-esm",
+    "build": "npm run clean && npm run build-cjs && npm run build-esm && npm run build-test",
     "build-cjs": "rollup --config",
-    "build-esm": "tsc -p ./",
-    "clean": "rimraf dist dist-esm types",
+    "build-esm": "tsc -p ./tsconfig.json",
+    "build-test": "tsc -p ./tsconfig.test.json",
+    "clean": "rimraf dist dist-esm out types",
     "dev": "rollup --config --watch",
     "lint": "eslint src/ test/",
     "fix-lint": "eslint src/ test/ --fix",
-    "test": "mocha --timeout 10000"
+    "test": "mocha out/test/*.test.{js,cjs,mjs} --timeout 10000"
   },
   "repository": {
     "type": "git",
@@ -33,7 +34,10 @@
   "license": "MIT",
   "devDependencies": {
     "@rollup/plugin-typescript": "^11.1.2",
+    "@types/mocha": "^10.0.4",
     "@types/node": "^20.5.7",
+    "@types/sinon": "^17.0.1",
+    "@types/uuid": "^9.0.7",
     "@typescript-eslint/eslint-plugin": "^6.6.0",
     "@typescript-eslint/parser": "^6.6.0",
     "chai": "^4.3.7",

src/AzureAppConfiguration.ts

@@ -3,4 +3,4 @@
 
 export type AzureAppConfiguration = {
     // methods for advanced features, e.g. refresh()
-} & ReadonlyMap<string, unknown>;
+} & ReadonlyMap<string, any>;

test/clientOptions.test.js → test/clientOptions.test.ts

@@ -1,15 +1,18 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT license.
 
-const chai = require("chai");
-const chaiAsPromised = require("chai-as-promised");
+import * as chai from "chai";
+import * as chaiAsPromised from "chai-as-promised";
 chai.use(chaiAsPromised);
 const expect = chai.expect;
-const { load } = require("../dist/index");
-const { createMockedConnectionString } = require("./utils/testHelper");
-const nock = require("nock");
+import { load } from "./exportedApi";
+import { createMockedConnectionString } from "./utils/testHelper";
+import * as nock from "nock";
 
 class HttpRequestCountPolicy {
+    count: number;
+    name: string;
+
     constructor() {
         this.count = 0;
         this.name = "HttpRequestCountPolicy";
@@ -58,7 +61,7 @@ describe("custom client options", function () {
 
     it("should override default retry options", async () => {
         const countPolicy = new HttpRequestCountPolicy();
-        const loadWithMaxRetries = (maxRetries) => {
+        const loadWithMaxRetries = (maxRetries: number) => {
             return load(createMockedConnectionString(fakeEndpoint), {
                 clientOptions: {
                     additionalPolicies: [{

test/exportedApi.ts

@@ -0,0 +1,4 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+
+export { load } from "../src";

test/json.test.js → test/json.test.ts

@@ -1,18 +1,12 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT license.
 
-const chai = require("chai");
-const chaiAsPromised = require("chai-as-promised");
+import * as chai from "chai";
+import * as chaiAsPromised from "chai-as-promised";
 chai.use(chaiAsPromised);
 const expect = chai.expect;
-const { load } = require("../dist/index");
-const {
-    mockAppConfigurationClientListConfigurationSettings,
-    restoreMocks,
-    createMockedConnectionString,
-    createMockedKeyVaultReference,
-    createMockedJsonKeyValue
-} = require("./utils/testHelper");
+import { load } from "./exportedApi";
+import { mockAppConfigurationClientListConfigurationSettings, restoreMocks, createMockedConnectionString, createMockedKeyVaultReference, createMockedJsonKeyValue } from "./utils/testHelper";
 
 const jsonKeyValue = createMockedJsonKeyValue("json.settings.logging", '{"Test":{"Level":"Debug"},"Prod":{"Level":"Warning"}}');
 const keyVaultKeyValue = createMockedKeyVaultReference("TestKey", "https://fake-vault-name.vault.azure.net/secrets/fakeSecretName");

test/keyvault.test.js → test/keyvault.test.ts

@@ -1,16 +1,13 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT license.
 
-const chai = require("chai");
-const chaiAsPromised = require("chai-as-promised");
+import * as chai from "chai";
+import * as chaiAsPromised from "chai-as-promised";
 chai.use(chaiAsPromised);
 const expect = chai.expect;
-const { load } = require("../dist/index");
-const { sinon,
-    createMockedConnectionString,
-    createMockedTokenCredential,
-    mockAppConfigurationClientListConfigurationSettings, mockSecretClientGetSecret, restoreMocks, createMockedKeyVaultReference } = require("./utils/testHelper");
-const { SecretClient } = require("@azure/keyvault-secrets");
+import { load } from "./exportedApi";
+import { sinon, createMockedConnectionString, createMockedTokenCredential, mockAppConfigurationClientListConfigurationSettings, mockSecretClientGetSecret, restoreMocks, createMockedKeyVaultReference } from "./utils/testHelper";
+import { KeyVaultSecret, SecretClient } from "@azure/keyvault-secrets";
 
 const mockedData = [
     // key, secretUri, value
@@ -72,9 +69,9 @@ describe("key vault reference", function () {
 
         // mock specific behavior per secret client
         const client1 = new SecretClient("https://fake-vault-name.vault.azure.net", createMockedTokenCredential());
-        sinon.stub(client1, "getSecret").returns({ value: "SecretValueViaClient1" });
+        sinon.stub(client1, "getSecret").returns(Promise.resolve({value: "SecretValueViaClient1" } as KeyVaultSecret));
         const client2 = new SecretClient("https://fake-vault-name2.vault.azure.net", createMockedTokenCredential());
-        sinon.stub(client2, "getSecret").returns({ value: "SecretValueViaClient2" });
+        sinon.stub(client2, "getSecret").returns(Promise.resolve({value: "SecretValueViaClient2" } as KeyVaultSecret));
         const settings = await load(createMockedConnectionString(), {
             keyVaultOptions: {
                 secretClients: [

test/load.test.js → test/load.test.ts

@@ -1,19 +1,12 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT license.
 
-const chai = require("chai");
-const chaiAsPromised = require("chai-as-promised");
+import * as chai from "chai";
+import * as chaiAsPromised from "chai-as-promised";
 chai.use(chaiAsPromised);
 const expect = chai.expect;
-const { load } = require("../dist/index");
-const {
-    mockAppConfigurationClientListConfigurationSettings,
-    restoreMocks,
-    createMockedConnectionString,
-    createMockedEnpoint,
-    createMockedTokenCredential,
-    createMockedKeyValue,
-} = require("./utils/testHelper");
+import { load } from "./exportedApi";
+import { mockAppConfigurationClientListConfigurationSettings, restoreMocks, createMockedConnectionString, createMockedEnpoint, createMockedTokenCredential, createMockedKeyValue } from "./utils/testHelper";
 
 const mockedKVs = [{
     key: "app.settings.fontColor",

test/requestTracing.test.js → test/requestTracing.test.ts

@@ -1,14 +1,16 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT license.
 
-const chai = require("chai");
-const chaiAsPromised = require("chai-as-promised");
+import * as chai from "chai";
+import * as chaiAsPromised from "chai-as-promised";
 chai.use(chaiAsPromised);
 const expect = chai.expect;
-const { load } = require("../dist/index");
-const { createMockedConnectionString, createMockedTokenCredential } = require("./utils/testHelper");
-
+import { createMockedConnectionString, createMockedTokenCredential } from "./utils/testHelper";
+import { load } from "./exportedApi";
 class HttpRequestHeadersPolicy {
+    headers: any;
+    name: string;
+
     constructor() {
         this.headers = {};
         this.name = "HttpRequestHeadersPolicy";
@@ -22,13 +24,14 @@ class HttpRequestHeadersPolicy {
 describe("request tracing", function () {
     const fakeEndpoint = "https://127.0.0.1"; // sufficient to test the request it sends out
     const headerPolicy = new HttpRequestHeadersPolicy();
+    const position: "perCall" | "perRetry" = "perCall";
     const clientOptions = {
         retryOptions: {
             maxRetries: 0 // save time
         },
         additionalPolicies: [{
             policy: headerPolicy,
-            position: "perCall"
+            position
         }]
     };
 
@@ -43,7 +46,7 @@ describe("request tracing", function () {
             await load(createMockedConnectionString(fakeEndpoint), { clientOptions });
         } catch (e) { /* empty */ }
         expect(headerPolicy.headers).not.undefined;
-        expect(headerPolicy.headers.get("User-Agent")).satisfy(ua => ua.startsWith("javascript-appconfiguration-provider"));
+        expect(headerPolicy.headers.get("User-Agent")).satisfy((ua: string) => ua.startsWith("javascript-appconfiguration-provider"));
     });
 
     it("should have request type in correlation-context header", async () => {
@@ -99,7 +102,7 @@ describe("request tracing", function () {
         delete process.env.WEBSITE_SITE_NAME;
     });
 
-    it("should disable request tracing when AZURE_APP_CONFIGURATION_TRACING_DISABLED is true", async() => {
+    it("should disable request tracing when AZURE_APP_CONFIGURATION_TRACING_DISABLED is true", async () => {
         for (const indicator of ["TRUE", "true"]) {
             process.env.AZURE_APP_CONFIGURATION_TRACING_DISABLED = indicator;
             try {