test: use jest for the tests

Author: aminya

.gitignore

@@ -11,3 +11,4 @@ package-lock.json
 
 # Build directories
 dist
+coverage/

test/index-spec.js __tests__/index.test.jstest/index-spec.js renamed to __tests__/index.test.js

@@ -0,0 +1,22 @@
+/**
+ * For a detailed explanation regarding each configuration property, visit:
+ * https://jestjs.io/docs/configuration
+ */
+
+import type { Config } from "jest"
+
+const config: Config = {
+  // Automatically clear mock calls, instances, contexts and results before every test
+  clearMocks: true,
+
+  // Indicates whether the coverage information should be collected while executing the test
+  collectCoverage: true,
+
+  // The directory where Jest should output its coverage files
+  coverageDirectory: "coverage",
+
+  // Indicates which provider should be used to instrument code for coverage
+  coverageProvider: "v8",
+}
+
+export default config

jest.config.ts

@@ -21,15 +21,16 @@
     "lint": "eslint . --fix",
     "test.lint": "eslint .",
     "bump": "ncu -u",
-    "test": "atom --test ./test/"
+    "test": "jest"
   },
   "atomTestRunner": "./test/runner",
   "devDependencies": {
-    "atom-jasmine3-test-runner": "^5.2.13",
     "eslint": "^8.48.0",
     "eslint-config-atomic": "^1.19.3",
+    "jest": "^29.6.4",
     "prettier": "^3.0.3",
     "prettier-config-atomic": "^3.1.0",
-    "requirefresh": "^5.4.0"
+    "requirefresh": "^5.4.0",
+    "ts-node": "^10.9.1"
   }
 }