WIP add vitest

Author: danielpza

test/package.json

@@ -2,7 +2,7 @@
   "private": true,
   "license": "MIT",
   "scripts": {
-    "test": "jest",
+    "test": "vitest --globals",
     "g:ts-node": "cd $INIT_CWD && ts-node",
     "postinstall": "node prepare.mjs"
   },
@@ -25,7 +25,8 @@
     "typescript": "^5.5.4",
     "typescript-four-seven": "npm:typescript@4.7.4",
     "typescript-three": "npm:typescript@3.6.5",
-    "typescript-transform-paths": "portal:../"
+    "typescript-transform-paths": "portal:../",
+    "vitest": "^2.0.5"
   },
   "workspaces": [
     "projects/*"

test/tests/extras.test.ts

@@ -18,7 +18,7 @@ describe(`Extra Tests`, () => {
   describe(`Built Tests`, () => {
     // see: https://github.com/LeDDGroup/typescript-transform-paths/issues/130
     test(`Transformer works without ts-node being present`, () => {
-      jest.doMock(
+      vi.doMock(
         "ts-node",
         () => {
           throw new ModuleNotFoundError("ts-node");
@@ -30,7 +30,7 @@ describe(`Extra Tests`, () => {
         const res = getEmitResultFromProgram(program);
         expect(res[indexFile].js).toMatch(`var _identifier_1 = require("./id")`);
       } finally {
-        jest.dontMock("ts-node");
+        vi.dontMock("ts-node");
       }
     });
 

test/tests/nx.test.ts

@@ -15,12 +15,12 @@ import { projectsPaths } from "../config";
 
 describe(`NX Transformer`, () => {
   describe("Plugin", () => {
-    let mockedTransformer: jest.SpyInstance;
+    let mockedTransformer: vi.SpyInstance;
 
     const program: any = { x: 1 };
 
     beforeAll(async () => {
-      mockedTransformer = jest.spyOn(transformerModule, "default").mockReturnValue(<any>(() => {}));
+      mockedTransformer = vi.spyOn(transformerModule, "default").mockReturnValue(<any>(() => {}));
     });
     afterAll(() => {
       mockedTransformer.mockClear();

test/tests/register.test.ts

@@ -47,9 +47,9 @@ describe(`Register script`, () => {
     test(`Registers initial ts-node if none found`, () => {
       const originalTsNodeInstance = global.process[instanceSymbol];
       global.process[instanceSymbol] = void 0;
-      let registerSpy: jest.SpyInstance | undefined;
+      let registerSpy: vi.SpyInstance | undefined;
       try {
-        registerSpy = jest.spyOn(tsNode, "register");
+        registerSpy = vi.spyOn(tsNode, "register");
         expect(global.process[instanceSymbol]).toBeUndefined();
 
         register.initialize();
@@ -67,9 +67,9 @@ describe(`Register script`, () => {
 
       const originalTsNodeInstance = global.process[instanceSymbol];
       global.process[instanceSymbol] = fakeInstance;
-      let registerSpy: jest.SpyInstance | undefined;
+      let registerSpy: vi.SpyInstance | undefined;
       try {
-        registerSpy = jest.spyOn(tsNode, "register");
+        registerSpy = vi.spyOn(tsNode, "register");
 
         const { tsNodeInstance } = register.initialize();
 
@@ -91,26 +91,26 @@ describe(`Register script`, () => {
 
   describe(`Register`, () => {
     test(`Throws without ts-node`, () => {
-      jest.doMock(
+      vi.doMock(
         "ts-node",
         () => {
           throw new ModuleNotFoundError("ts-node");
         },
         { virtual: true },
       );
       expect(() => register()).toThrow(`Cannot resolve ts-node`);
-      jest.dontMock("ts-node");
+      vi.dontMock("ts-node");
     });
 
     test(`Throws if can't register ts-node`, () => {
-      jest.doMock("ts-node", () => ({ register: () => {} }), { virtual: true });
+      vi.doMock("ts-node", () => ({ register: () => {} }), { virtual: true });
       expect(() => register()).toThrow(`Could not register ts-node instance!`);
-      jest.dontMock("ts-node");
+      vi.dontMock("ts-node");
     });
 
     test(`No transformers in tsConfig exits quietly`, () => {
       const originalInitialize = register.initialize;
-      const initializeSpy = jest.spyOn(register, "initialize");
+      const initializeSpy = vi.spyOn(register, "initialize");
       try {
         initializeSpy.mockImplementation(() => {
           const res = originalInitialize();
@@ -135,7 +135,7 @@ describe(`Register script`, () => {
         after: [fakeExistingTransformer],
         afterDeclarations: [fakeExistingTransformer],
       };
-      const transformerFactoryFn = jest.fn().mockReturnValue(fakeTransformerConfig);
+      const transformerFactoryFn = vi.fn().mockReturnValue(fakeTransformerConfig);
       const fakeProgram: any = {};
 
       let existingTransformers: CustomTransformers | ((p: Program) => CustomTransformers) | undefined;
@@ -151,19 +151,19 @@ describe(`Register script`, () => {
       }
 
       describe.each(configMap)(`$label`, ({ transformers, hasBefore, hasAfterDeclarations }) => {
-        let mockTransformer: jest.SpyInstance;
-        let initializeSpy: jest.SpyInstance;
+        let mockTransformer: vi.SpyInstance;
+        let initializeSpy: vi.SpyInstance;
         let registerResult: tsNode.RegisterOptions;
         let instanceRegistrationResult: tsNode.Service;
         let mergedTransformers: CustomTransformers;
 
         beforeAll(() => {
-          mockTransformer = jest.spyOn(transformerModule, "default").mockReturnValue(fakeTransformer);
+          mockTransformer = vi.spyOn(transformerModule, "default").mockReturnValue(fakeTransformer);
 
           global.process[instanceSymbol] = void 0;
 
           const originalInitialize = register.initialize;
-          initializeSpy = jest.spyOn(register, "initialize");
+          initializeSpy = vi.spyOn(register, "initialize");
           initializeSpy.mockImplementation(() => {
             const res = originalInitialize();
             if (existingTransformers) res.tsNodeInstance.options.transformers = existingTransformers;

test/tests/transformer/specific.test.ts

@@ -40,7 +40,7 @@ const moduleAugmentFile = ts.normalizePath(path.join(projectRoot, "src/module-au
  * ****************************************************************************************************************** */
 
 declare global {
-  namespace jest {
+  namespace vi {
     // eslint-disable-next-line @typescript-eslint/no-unused-vars -- no way to extend type definitions without using the same declaration as the original types
     interface Matchers<R> {
       transformedMatches(expected: RegExp | string, opt?: { base?: EmittedFiles[]; kind?: ("dts" | "js")[] }): void;