Swap out jest for vitest

.npmignore

@@ -14,7 +14,7 @@ public/
 .gitignore
 .prettierignore
 prettier.config.js
-jest.config.js
+vitest.config.js
 yarn.lock
 tsconfig.json
 CODE_OF_CONDUCT.md

docs/DEBUG.md

@@ -21,13 +21,13 @@ yarn run compile && node --inspect-brk ./node_modules/.bin/prettier --config exa
 You can set a `debugger` anywhere in the code and then use following command:
 
 ```shell
-node --inspect-brk ./node_modules/.bin/jest -i
+node --inspect-brk ./node_modules/.bin/vitest --run
 ```
 
 Or, to debug a single unit test file
 
 ```shell
- node --inspect-brk ./node_modules/.bin/jest -i <name-or-relative-path-of-the-file-file>
+ node --inspect-brk ./node_modules/.bin/vitest --run <name-or-relative-path-of-the-file-file>
 ```
 
 ### How to run prettier in any codebase using the plugin ?

package.json

@@ -15,7 +15,7 @@
         "compile": "tsc",
         "preexample": "yarn run compile",
         "example": "prettier --config ./examples/.prettierrc --plugin lib/src/index.js",
-        "test": "jest -i",
+        "test": "vitest --run",
         "type-check": "tsc --noEmit",
         "prepublishOnly": "npm run compile && npm run test"
     },
@@ -55,15 +55,16 @@
         "lodash.isequal": "^4.5.0"
     },
     "devDependencies": {
-        "@types/jest": "^29.2.0",
+        "@types/babel__generator": "^7.6.4",
+        "@types/babel__traverse": "^7.18.3",
         "@types/lodash.clone": "4.5.7",
         "@types/lodash.isequal": "4.5.6",
         "@types/node": "^18.15.13",
+        "@types/prettier": "^2.7.2",
         "@vue/compiler-sfc": "3.2.47",
-        "jest": "^29.5.0",
         "prettier": "2.8.7",
-        "ts-jest": "^29.1.0",
-        "typescript": "5.0.4"
+        "typescript": "5.0.4",
+        "vitest": "^0.30.1"
     },
     "peerDependencies": {
         "@vue/compiler-sfc": ">=3.0.0",

src/index.ts

@@ -17,7 +17,7 @@ interface PrettierOptionSchema {
     description: string;
 }
 
-const options: Record<
+export const options: Record<
     Exclude<keyof PrettierOptions, keyof PrettierRequiredOptions>,
     PrettierOptionSchema
 > = {
@@ -83,24 +83,21 @@ const options: Record<
     },
 };
 
-module.exports = {
-    parsers: {
-        babel: {
-            ...babelParsers.babel,
-            preprocess: defaultPreprocessor,
-        },
-        flow: {
-            ...flowParsers.flow,
-            preprocess: defaultPreprocessor,
-        },
-        typescript: {
-            ...typescriptParsers.typescript,
-            preprocess: defaultPreprocessor,
-        },
-        vue: {
-            ...htmlParsers.vue,
-            preprocess: vuePreprocessor,
-        },
+export const parsers = {
+    babel: {
+        ...babelParsers.babel,
+        preprocess: defaultPreprocessor,
+    },
+    flow: {
+        ...flowParsers.flow,
+        preprocess: defaultPreprocessor,
+    },
+    typescript: {
+        ...typescriptParsers.typescript,
+        preprocess: defaultPreprocessor,
+    },
+    vue: {
+        ...htmlParsers.vue,
+        preprocess: vuePreprocessor,
     },
-    options,
 };

src/utils/__tests__/adjust-comments-on-sorted-nodes.spec.ts

@@ -1,3 +1,5 @@
+import { expect, test } from 'vitest';
+
 import type { ImportOrLine } from '../../types';
 import { adjustCommentsOnSortedNodes } from '../adjust-comments-on-sorted-nodes';
 import { getImportNodes } from '../get-import-nodes';

src/utils/__tests__/explode-type-and-value-specifiers.spec.ts

@@ -1,3 +1,5 @@
+import { expect, test } from 'vitest';
+
 import { explodeTypeAndValueSpecifiers } from '../explode-type-and-value-specifiers';
 import { getCodeFromAst } from '../get-code-from-ast';
 import { getImportNodes } from '../get-import-nodes';

src/utils/__tests__/get-all-comments-from-nodes.spec.ts

@@ -1,5 +1,6 @@
 import { ParserOptions } from '@babel/parser';
 import { CommentBlock, CommentLine, ImportDeclaration } from '@babel/types';
+import { expect, test } from 'vitest';
 
 import { getAllCommentsFromNodes } from '../get-all-comments-from-nodes';
 import { getImportNodes } from '../get-import-nodes';

src/utils/__tests__/get-chunk-type-of-node.spec.ts

@@ -1,3 +1,5 @@
+import { expect, test } from 'vitest';
+
 import { chunkTypeOther, chunkTypeUnsortable } from '../../constants';
 import { getChunkTypeOfNode } from '../get-chunk-type-of-node';
 import { getImportNodes } from '../get-import-nodes';

src/utils/__tests__/get-code-from-ast.spec.ts

@@ -1,10 +1,11 @@
 import { format } from 'prettier';
+import { expect, test } from 'vitest';
 
 import { getCodeFromAst } from '../get-code-from-ast';
 import { getImportNodes } from '../get-import-nodes';
 import { getSortedNodes } from '../get-sorted-nodes';
 
-it('sorts imports correctly', () => {
+test('sorts imports correctly', () => {
     const code = `// first comment
 // second comment
 import z from 'z';
@@ -43,7 +44,7 @@ import z from "z";
     );
 });
 
-it('merges duplicate imports correctly', () => {
+test('merges duplicate imports correctly', () => {
     const code = `// first comment
 // second comment
 import z from 'z';

src/utils/__tests__/get-experimental-parser-plugins.spec.ts

@@ -1,3 +1,5 @@
+import { expect, test } from 'vitest';
+
 import { getExperimentalParserPlugins } from '../get-experimental-parser-plugins';
 
 test('it should return empty list', () => {

src/utils/__tests__/get-import-flavor-of-node.spec.ts

@@ -1,7 +1,9 @@
+import { expect, test } from 'vitest';
+
 import { getImportFlavorOfNode } from '../get-import-flavor-of-node';
 import { getImportNodes } from '../get-import-nodes';
 
-it('should correctly classify a bunch of import expressions', () => {
+test('should correctly classify a bunch of import expressions', () => {
     expect(
         getImportNodes(
             `

src/utils/__tests__/get-import-nodes-matched-group.spec.ts

@@ -1,3 +1,5 @@
+import { expect, test } from 'vitest';
+
 import { getImportNodes } from '../get-import-nodes';
 import { getImportNodesMatchedGroup } from '../get-import-nodes-matched-group';
 

src/utils/__tests__/get-sorted-import-specifiers.spec.ts

@@ -1,3 +1,5 @@
+import { expect, test } from 'vitest';
+
 import { getImportNodes } from '../get-import-nodes';
 import { getSortedImportSpecifiers } from '../get-sorted-import-specifiers';
 import { getSortedNodesModulesNames } from '../get-sorted-nodes-modules-names';

src/utils/__tests__/get-sorted-nodes-by-import-order.spec.ts

@@ -1,4 +1,5 @@
 import { ImportDeclaration } from '@babel/types';
+import { expect, test } from 'vitest';
 
 import { getImportNodes } from '../get-import-nodes';
 import { getSortedNodesByImportOrder } from '../get-sorted-nodes-by-import-order';

src/utils/__tests__/get-sorted-nodes.spec.ts

@@ -1,4 +1,5 @@
 import { ImportDeclaration } from '@babel/types';
+import { expect, test } from 'vitest';
 
 import { getImportNodes } from '../get-import-nodes';
 import { getSortedNodes } from '../get-sorted-nodes';

src/utils/__tests__/merge-nodes-with-matching-flavors.spec.ts

@@ -1,4 +1,5 @@
 import { format } from 'prettier';
+import { expect, test } from 'vitest';
 
 import { getCodeFromAst } from '../get-code-from-ast';
 import { getImportNodes } from '../get-import-nodes';
@@ -15,7 +16,7 @@ const defaultOptions = {
     importOrderSortSpecifiers: true,
 };
 
-it('should merge duplicate imports within a given chunk', () => {
+test('should merge duplicate imports within a given chunk', () => {
     const code = `
     import type { A } from 'a';
     import { Junk } from 'junk-group-1'
@@ -89,7 +90,7 @@ import { Junk2 } from "junk-group-2";
 `);
 });
 
-it('should merge type imports into regular imports', () => {
+test('should merge type imports into regular imports', () => {
     const code = `
     // Preserves 'import type'
     import type { A1 } from 'a';
@@ -132,7 +133,7 @@ import { D1, type D2 } from "d";
 `);
 });
 
-it('should combine type import and default import', () => {
+test('should combine type import and default import', () => {
     const code = `
 import type {MyType} from './source';
 import defaultValue from './source';
@@ -158,7 +159,7 @@ import defaultValue from './source';
 `);
 });
 
-it('should not combine type import and namespace import', () => {
+test('should not combine type import and namespace import', () => {
     const code = `
 import type {MyType} from './source';
 import * as Namespace from './source';
@@ -185,7 +186,7 @@ import * as Namespace from "./source";
 `);
 });
 
-it('should support aliased named imports', () => {
+test('should support aliased named imports', () => {
     const code = `
 import type {MyType} from './source';
 import {value as alias} from './source';
@@ -211,7 +212,7 @@ import {value as alias} from './source';
 `);
 });
 
-it('should combine multiple imports from the same source', () => {
+test('should combine multiple imports from the same source', () => {
     const code = `
 import type {MyType, SecondType} from './source';
 import {value, SecondValue} from './source';
@@ -237,7 +238,7 @@ import {value, SecondValue} from './source';
 `);
 });
 
-it('should combine multiple groups of imports', () => {
+test('should combine multiple groups of imports', () => {
     const code = `
 import type {MyType} from './source';
 import type {OtherType} from './other';
@@ -266,7 +267,7 @@ import { value, type MyType } from "./source";
 `);
 });
 
-it('should combine multiple imports statements from the same source', () => {
+test('should combine multiple imports statements from the same source', () => {
     const code = `
 import type {MyType} from './source';
 import type {SecondType} from './source';
@@ -294,7 +295,7 @@ import {SecondValue} from './source';
 `);
 });
 
-it('should not impact imports from different sources', () => {
+test('should not impact imports from different sources', () => {
     const code = `
 import type {MyType} from './source';
 import type {OtherType} from './other';
@@ -324,7 +325,7 @@ import { thirdValue } from "./third";
 `);
 });
 
-it("doesn't merge duplicate imports if option disabled", () => {
+test("doesn't merge duplicate imports if option disabled", () => {
     const code = `
     import type { A } from 'a';
     import { Junk } from 'junk-group-1'
@@ -401,7 +402,7 @@ import { Junk2 } from "junk-group-2";
 `);
 });
 
-it('should not combine default type imports', () => {
+test('should not combine default type imports', () => {
     const code = `
     import { ComponentProps, useEffect } from "react";
     import type React from "react";

src/utils/__tests__/remove-nodes-from-original-code.spec.ts

@@ -1,5 +1,6 @@
 import { parse as babelParser } from '@babel/parser';
 import { format } from 'prettier';
+import { expect, test } from 'vitest';
 
 import { getAllCommentsFromNodes } from '../get-all-comments-from-nodes';
 import { getImportNodes } from '../get-import-nodes';

test-setup/raw-serializer.js

@@ -1,8 +1,10 @@
 'use strict';
 
+import { expect } from 'vitest';
+
 const RAW = Symbol.for('raw');
 
-module.exports = {
+expect.addSnapshotSerializer({
     print(val) {
         return val[RAW];
     },
@@ -13,4 +15,4 @@ module.exports = {
             typeof val[RAW] === 'string'
         );
     },
-};
+});

test-setup/run_spec.js → test-setup/run_spec.ts

@@ -1,13 +1,16 @@
 'use strict';
 
-const fs = require('fs');
-const extname = require('path').extname;
-const prettier = require('prettier');
+import fs from 'fs';
+import { extname, join, resolve } from 'path';
+import prettier from 'prettier';
+import { expect, test } from 'vitest';
 
-function run_spec(dirname, parsers, options) {
+import * as plugin from '../src';
+
+export function run_spec(dirname, parsers, options) {
     options = Object.assign(
         {
-            plugins: ['./src'],
+            plugins: [plugin],
             tabWidth: 4,
         },
         options,
@@ -24,7 +27,7 @@ function run_spec(dirname, parsers, options) {
             extname(filename) !== '.snap' &&
             fs.lstatSync(path).isFile() &&
             filename[0] !== '.' &&
-            filename !== 'ppsi.spec.js'
+            filename !== 'ppsi.spec.ts'
         ) {
             const source = read(path).replace(/\r\n/g, '\n');
 
@@ -33,13 +36,9 @@ function run_spec(dirname, parsers, options) {
             });
             const output = prettyprint(source, path, mergedOptions);
             test(`${filename} - ${mergedOptions.parser}-verify`, () => {
-                try {
-                    expect(
-                        raw(source + '~'.repeat(80) + '\n' + output),
-                    ).toMatchSnapshot(filename);
-                } catch (e) {
-                    console.error(e, path);
-                }
+                expect(
+                    raw(source + '~'.repeat(80) + '\n' + output),
+                ).toMatchSnapshot(filename);
             });
 
             parsers.slice(1).forEach((parserName) => {
@@ -58,7 +57,6 @@ function run_spec(dirname, parsers, options) {
         }
     });
 }
-global.run_spec = run_spec;
 
 function prettyprint(src, filename, options) {
     return prettier.format(