Add tests

.eslintrc.cjs

@@ -3,4 +3,17 @@
 const { configs } = require('@nullvoxpopuli/eslint-configs');
 
 // accommodates: JS, TS, ESM, and CJS
-module.exports = configs.node();
+const config = configs.node();
+
+module.exports = {
+  ...config,
+  overrides: [
+    ...config.overrides,
+    {
+      files: ['**/*.test.ts'],
+      rules: {
+        'n/no-unpublished-import': 'off',
+      },
+    },
+  ],
+};

.github/workflows/ci.yml

@@ -19,3 +19,15 @@ jobs:
       - uses: wyvox/action-setup-pnpm@v3
       - name: Lint
         run: pnpm lint
+
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 1
+      - uses: wyvox/action-setup-pnpm@v3
+      - run: pnpm test
+

package.json

@@ -47,11 +47,13 @@
     "@nullvoxpopuli/eslint-configs": "^3.2.2",
     "@tsconfig/node21": "^21.0.1",
     "@tsconfig/strictest": "^2.0.2",
+    "@types/common-tags": "^1.8.4",
     "@types/fs-extra": "^11.0.4",
     "@types/jscodeshift": "^0.11.11",
     "@types/node": "^20.11.15",
     "@typescript-eslint/eslint-plugin": "^6.20.0",
     "@typescript-eslint/parser": "^6.20.0",
+    "common-tags": "^1.8.2",
     "concurrently": "^8.2.2",
     "eslint": "^8.56.0",
     "prettier": "^3.2.4",

src/fixes/ember.test.ts

@@ -0,0 +1,40 @@
+import { stripIndent } from 'common-tags';
+import { describe, expect as hardAssert, test } from 'vitest';
+
+import { fixEmberReferences } from './ember.js';
+
+const expect = hardAssert.soft;
+
+describe('fixReferences', () => {
+  test('match ember-source', () => {
+    let code = stripIndent`
+      /// <reference types="ember-source/whatever/module">"
+      export const two = 2;`;
+
+    let result = fixEmberReferences(code);
+
+    expect(result).toBe(`export const two = 2;`);
+  });
+
+  test('match multiple ember-source', () => {
+    let code = stripIndent`
+      /// <reference types="ember-source/whatever/module">"
+      /// <reference types="ember-source/whatever1/module">"
+      /// <reference types="ember-source/whatever2/module">"
+      export const two = 2;`;
+
+    let result = fixEmberReferences(code);
+
+    expect(result).toBe(`export const two = 2;`);
+  });
+
+  test('ignore non-specified', () => {
+    let code = stripIndent`
+      /// <reference types="not-ember-source/whatever/module">"
+      export const two = 2;`;
+
+    let result = fixEmberReferences(code);
+
+    expect(result).toBe(code);
+  });
+});

src/fixes/glint.test.ts

@@ -0,0 +1,45 @@
+import { stripIndent } from 'common-tags';
+import { describe, expect as hardAssert, test } from 'vitest';
+
+import { fixGTSExtensions, fixOwnReferences } from './glint.js';
+
+const expect = hardAssert.soft;
+
+describe('fixGTSExtensions', () => {
+  test('works', () => {
+    let code = stripIndent`
+      import x from './foo.gts';
+    `;
+
+    let result = fixGTSExtensions(code);
+
+    expect(result).toBe(`import x from "./foo";`);
+  });
+});
+
+describe('fixOwnReferences', () => {
+  test('removes multiple', () => {
+    let code = stripIndent`
+      /// <reference types="node_modules/@glint/whatever/module">"
+      /// <reference types="node_modules/@glint/whatever2/module">"
+      /// <reference types="node_modules/@glint/whatever5/module">"
+      export const two = 2;`;
+
+    let result = fixOwnReferences(code);
+
+    expect(result).toBe(`export const two = 2;`);
+  });
+
+  test(' does not remove more than what is specified', () => {
+    let code = stripIndent`
+      /// <reference types="@glint/whatever/module">"
+      /// <reference types="node_modules/@glint/whatever2/module">"
+      export const two = 2;`;
+
+    let result = fixOwnReferences(code);
+
+    expect(result).toBe(stripIndent`
+      /// <reference types="@glint/whatever/module">"
+      export const two = 2;`);
+  });
+});

src/fixes/typescript.test.ts

@@ -0,0 +1,75 @@
+import { stripIndent } from 'common-tags';
+import { describe, expect as hardAssert, test } from 'vitest';
+
+import { fixReferences } from './typescript.js';
+
+const expect = hardAssert.soft;
+
+describe('fixReferences', () => {
+  test('defaults: match ember-source', () => {
+    let code = stripIndent`
+      /// <reference types="ember-source/whatever/module">"
+      export const two = 2;`;
+
+    let result = fixReferences(code);
+
+    expect(result).toBe(`export const two = 2;`);
+  });
+
+  test('defaults: match multiple ember-source', () => {
+    let code = stripIndent`
+      /// <reference types="ember-source/whatever/module">"
+      /// <reference types="ember-source/whatever1/module">"
+      /// <reference types="ember-source/whatever2/module">"
+      export const two = 2;`;
+
+    let result = fixReferences(code);
+
+    expect(result).toBe(`export const two = 2;`);
+  });
+
+  test('defaults: ignore non-specified', () => {
+    let code = stripIndent`
+      /// <reference types="not-ember-source/whatever/module">"
+      export const two = 2;`;
+
+    let result = fixReferences(code);
+
+    expect(result).toBe(code);
+  });
+
+  test('custom: works', () => {
+    let code = stripIndent`
+      /// <reference types="@glint/whatever/module">"
+      export const two = 2;`;
+
+    let result = fixReferences(code, { types: '@glint' });
+
+    expect(result).toBe(`export const two = 2;`);
+  });
+
+  test('custom: removes multiple', () => {
+    let code = stripIndent`
+      /// <reference types="@glint/whatever/module">"
+      /// <reference types="@glint/whatever2/module">"
+      /// <reference types="@glint/whatever5/module">"
+      export const two = 2;`;
+
+    let result = fixReferences(code, { types: '@glint' });
+
+    expect(result).toBe(`export const two = 2;`);
+  });
+
+  test('custom: does not remove more than what is specified', () => {
+    let code = stripIndent`
+      /// <reference types="@glint/whatever/module">"
+      /// <reference types="node_modules/@glint/whatever2/module">"
+      export const two = 2;`;
+
+    let result = fixReferences(code, { types: '@glint' });
+
+    expect(result).toBe(stripIndent`
+      /// <reference types="node_modules/@glint/whatever2/module">"
+      export const two = 2;`);
+  });
+});