Unit tests for TS Lambda client

Author: clareliguori

.gitignore

@@ -9,6 +9,7 @@ cdk.context.json
 !jest.config.js
 *.d.ts
 node_modules
+coverage/
 
 # Python
 __pycache__/

src/typescript/jest.config.js

@@ -7,10 +7,25 @@ export default {
   ...defaultEsmPreset,
   moduleNameMapper: {
     "^(\\.{1,2}/.*)\\.js$": "$1",
-    "^pkce-challenge$": "<rootDir>/src/__mocks__/pkce-challenge.ts"
+    "^pkce-challenge$": "<rootDir>/src/__mocks__/pkce-challenge.ts",
   },
-  transformIgnorePatterns: [
-    "/node_modules/(?!eventsource)/"
-  ],
+  transformIgnorePatterns: ["/node_modules/(?!eventsource)/"],
   testPathIgnorePatterns: ["/node_modules/", "/dist/"],
+  collectCoverage: true,
+  coverageDirectory: "coverage",
+  coverageReporters: ["html"],
+  collectCoverageFrom: [
+    "src/**/*.ts",
+    "!src/**/*.d.ts",
+    "!src/**/*.test.ts",
+    "!src/__mocks__/**",
+  ],
+  coverageThreshold: {
+    global: {
+      branches: 80,
+      functions: 90,
+      lines: 90,
+      statements: 90,
+    },
+  },
 };