Improve and Add Comprehensive Test Coverage [#71]

.gitignore

@@ -5,4 +5,5 @@
 /docs/authenticators
 /site
 /authenticators
-/misc/authenticators
+/misc/authenticators
+/coverage

global.d.ts

@@ -0,0 +1,11 @@
+// global.d.ts
+import "jest";
+
+declare global {
+  var mockCreate: jest.Mock<any, any>;
+  var mockGet: jest.Mock<any, any>;
+  var mockIsUserVerifyingPlatformAuthenticatorAvailable: jest.Mock<any, any>;
+  var mockIsConditionalMediationAvailable: jest.Mock<any, any>;
+}
+
+export {};

jest.config.js

@@ -3,14 +3,17 @@
 //import { TextDecoder } from 'util';
 
 export default {
-  preset: 'ts-jest',
-  testEnvironment: 'node', // 'jsdom', //'node',
+  preset: "ts-jest",
+  testEnvironment: "node", // 'jsdom', //'node',
   moduleDirectories: ["node_modules", "src"],
-  resolver: "jest-ts-webcompat-resolver"
-  /*
-   globals: {
-    crypto,
-    TextDecoder
-  }
-  */
-};
+  resolver: "jest-ts-webcompat-resolver",
+  setupFilesAfterEnv: ["<rootDir>/jest_config/jest.setup.js"],
+  collectCoverage: true,
+  collectCoverageFrom: ["./src/**"],
+  coverageThreshold: {
+    global: {
+      lines: 90,
+    },
+  },
+  coveragePathIgnorePatterns: ["/node_modules/", "<rootDir>/src/authenticators.ts"],
+};

jest_config/jest.setup.js

@@ -0,0 +1,51 @@
+// jest.setup.js
+
+if (typeof globalThis.btoa === "undefined") {
+  globalThis.btoa = (data) => Buffer.from(data, "binary").toString("base64");
+}
+
+if (typeof globalThis.atob === "undefined") {
+  globalThis.atob = (data) => Buffer.from(data, "base64").toString("binary");
+}
+
+if (typeof globalThis.crypto === "undefined") {
+  const { webcrypto } = require("crypto");
+  globalThis.crypto = webcrypto;
+}
+
+if (typeof window !== "undefined" && typeof document !== "undefined") {
+  if (!crypto.randomUUID) {
+    crypto.randomUUID = () => "mock-uuid-1234";
+  }
+
+  // Mock the PublicKeyCredential and its static methods:
+  const mockIsUserVerifyingPlatformAuthenticatorAvailable = jest.fn();
+  const mockIsConditionalMediationAvailable = jest.fn();
+
+  Object.defineProperty(window, "PublicKeyCredential", {
+    writable: true,
+    value: class {
+      static isUserVerifyingPlatformAuthenticatorAvailable =
+        mockIsUserVerifyingPlatformAuthenticatorAvailable;
+      static isConditionalMediationAvailable = mockIsConditionalMediationAvailable;
+    },
+  });
+
+  // Mock navigator.credentials.create and .get:
+  const mockCreate = jest.fn();
+  const mockGet = jest.fn();
+
+  Object.defineProperty(navigator, "credentials", {
+    writable: true,
+    value: {
+      create: mockCreate,
+      get: mockGet,
+    },
+  });
+
+  global.mockCreate = mockCreate;
+  global.mockGet = mockGet;
+  global.mockIsUserVerifyingPlatformAuthenticatorAvailable =
+    mockIsUserVerifyingPlatformAuthenticatorAvailable;
+  global.mockIsConditionalMediationAvailable = mockIsConditionalMediationAvailable;
+}