jest and ts configs

Author: BatMiles

.gitignore

@@ -21,4 +21,6 @@ npm-debug.log*
 
 .idea
 
-lib
+lib
+
+tsconfig.tsbuildinfo

jest.config.mjs

@@ -0,0 +1,29 @@
+
+const jestConfig = {
+  clearMocks: true,
+  coverageDirectory: "coverage",
+  coverageProvider: "v8",
+  testEnvironment: "node",
+  testMatch: ["<rootDir>/src/**/*.spec.ts"],
+  extensionsToTreatAsEsm: ['.ts'], 
+  // Use the native ESM preset provided by ts-jest
+  preset: 'ts-jest/presets/default-esm', 
+  
+  transform: {
+    // Ensure ts-jest processes your TS files as ES Modules
+    '^.+\\.ts$': [
+      'ts-jest',
+      {
+        useESM: true,
+        tsconfig: '<rootDir>/tsconfig.json',
+      },
+    ],
+  },
+  
+  // Since chrome-har is an ES Module, let Jest resolve it properly
+  moduleNameMapper: {
+    '^(\\.{1,2}/.*)\\.js$': '$1', 
+  },
+}
+
+export default jestConfig