chore: add jest config (#39)

* chore: add jest config

* chore: ignore test files from build

jest.config.ts

@@ -0,0 +1,27 @@
+module.exports = {
+  preset: "ts-jest",
+  testEnvironment: "node",
+  transform: {},
+  collectCoverage: true,
+  collectCoverageFrom: ["src/**/*.ts"],
+  coveragePathIgnorePatterns: [
+    "node_modules",
+    "jest.config.ts",
+    "src/web3-functions",
+    "lib/Web3Function.ts",
+    "hardhat",
+    ".d.ts",
+    "__test__",
+  ],
+  testPathIgnorePatterns: ["node_modules", "dist", "lib/binaries"],
+  extensionsToTreatAsEsm: [".ts"],
+  coverageReporters: ["lcov", "json", "html"],
+  globals: {
+    "ts-jest": {
+      useESM: true,
+    },
+  },
+  moduleNameMapper: {
+    "^(\\.{1,2}/.*)\\.js$": "$1",
+  },
+};

package.json

@@ -80,6 +80,7 @@
     "format:check": "prettier --check '*/**/*.{js,json,md,ts}'",
     "lint": "eslint --cache .",
     "test": "ts-node src/bin/index.ts test",
+    "test:unit": "node --experimental-vm-modules ./node_modules/.bin/jest src --verbose --detectOpenHandles --forceExit --silent=false",
     "benchmark": "ts-node src/bin/index.ts benchmark",
     "deploy": "ts-node src/bin/index.ts deploy",
     "fetch": "ts-node src/bin/index.ts fetch",
@@ -90,6 +91,7 @@
   },
   "devDependencies": {
     "@tsconfig/recommended": "^1.0.1",
+    "@types/jest": "^29.5.1",
     "@types/node": "^16.11.12",
     "@types/object-hash": "^3.0.2",
     "@types/signal-exit": "^3.0.1",
@@ -99,7 +101,9 @@
     "eslint-config-prettier": "^8.3.0",
     "eslint-plugin-prettier": "^4.0.0",
     "hardhat": "^2.13.0",
+    "jest": "^29.5.0",
     "prettier": "^2.3.2",
+    "ts-jest": "^29.1.0",
     "ts-node": "^10.9.1",
     "typescript": "^4.7.0"
   },

tsconfig.build.json

@@ -1,4 +1,4 @@
 {
   "extends": "./tsconfig.json",
-  "exclude": ["src/web3-functions/**/*"]
+  "exclude": ["src/web3-functions/**/*", "src/**/__test__"]
 }