test: add test case.

.github/workflows/ci.yml

@@ -6,19 +6,35 @@ on:
 jobs:
   build-deploy:
     runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      id-token: write
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
         with:
-          node-version: 16
+          node-version: 18
           registry-url: 'https://registry.npmjs.org'
 
       - run: npm install
       - run: npm run build
+      - run: npm run coverage
 
       - run: npm install [email protected] -g
       - run: idoc -s "Copy Text to Clipboard {{version}}"
 
+      - name: Create Coverage Badges
+        uses: jaywcjlove/coverage-badges-cli@main
+        with:
+          output: dist/badges.svg
+
+      - name: Generate Contributors Images
+        uses: jaywcjlove/github-action-contributors@main
+        with:
+          filter-author: (renovate\[bot\]|renovate-bot|dependabot\[bot\])
+          output: dist/CONTRIBUTORS.svg
+          avatarSize: 42
+
       - name: Deploy
         uses: peaceiris/actions-gh-pages@v3
         with:
@@ -63,7 +79,7 @@ jobs:
       # - run: npm-publish --token="${{ secrets.NPM_TOKEN }}" ./package.json
 
       - name: 📦 @uiw/copy-to-clipboard publish to NPM
-        run: npm publish
+        run: npm publish --access public --provenance
         continue-on-error: true
         env:
           NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

README.md

@@ -7,6 +7,7 @@ Copy Text to Clipboard
 [![Open in unpkg](https://img.shields.io/badge/Open%20in-unpkg-blue)](https://uiwjs.github.io/npm-unpkg/#/pkg/@uiw/copy-to-clipboard/file/README.md)
 [![npm version](https://img.shields.io/npm/v/@uiw/copy-to-clipboard.svg)](https://www.npmjs.com/package/@uiw/copy-to-clipboard)
 [![Repo Dependents](https://badgen.net/github/dependents-repo/uiwjs/copy-to-clipboard)](https://github.com/uiwjs/copy-to-clipboard/network/dependents)
+[![Coverage Status](https://uiwjs.github.io/copy-to-clipboard/badges.svg)](https://uiwjs.github.io/copy-to-clipboard/lcov-report/)
 
 **This styling is an extra step which is likely not required.**
 
@@ -45,6 +46,16 @@ copyTextToClipboard('test', (isCopy) => {
 </script>
 ```
 
+## Contributors
+
+As always, thanks to our amazing contributors!
+
+<a href="https://github.com/uiwjs/copy-to-clipboard/graphs/contributors">
+  <img src="https://uiwjs.github.io/copy-to-clipboard/CONTRIBUTORS.svg" />
+</a>
+
+Made with [contributors](https://github.com/jaywcjlove/github-action-contributors).
+
 ### License
 
 Licensed under the MIT License.

package.json

@@ -8,6 +8,8 @@
   "homepage": "https://uiwjs.github.io/copy-to-clipboard",
   "types": "index.d.ts",
   "scripts": {
+    "test": "tsbb test",
+    "coverage": "tsbb test --coverage --bail",
     "build": "rollup -c rollup.config.mjs",
     "dev": "rollup -c rollup.config.mjs -w"
   },
@@ -41,5 +43,7 @@
     "bannerjs": "^3.0.1",
     "rollup": "^3.20.2"
   },
-  "dependencies": {}
+  "dependencies": {
+    "tsbb": "^4.2.3"
+  }
 }

test/main.test.js

@@ -0,0 +1,69 @@
+import copyTextToClipboard from '../src/main';
+
+test('copyTextToClipboard should copy the text to the clipboard and return true', () => {
+  const text = 'Hello, world!';
+  const copied = jest.fn();
+  document.execCommand = jest.fn(() => true);
+  const cb = isCopy => {
+    copied(isCopy);
+    expect(isCopy).toBe(true);
+  };
+
+  copyTextToClipboard(text, cb);
+
+  expect(copied).toHaveBeenCalledWith(true);
+});
+
+test('copyTextToClipboard should not copy the text to the clipboard and return false', () => {
+  const text = 'Hello, world!';
+  const copied = jest.fn();
+  const cb = isCopy => {
+    copied(isCopy);
+    expect(isCopy).toBe(false);
+  };
+
+  // Simulating an error during `document.execCommand('copy')`
+  document.execCommand = jest.fn(() => {
+    throw new Error('Copy failed');
+  });
+
+  copyTextToClipboard(text, cb);
+
+  expect(copied).toHaveBeenCalledWith(false);
+});
+
+
+it('should copy text to clipboard', () => {
+  let mockCb = jest.fn();
+  const text = 'Hello, world!';
+  const mockRange = {
+    commonAncestorContainer: 'mockContainer',
+    startContainer: 'mockContainer',
+    endContainer: 'mockContainer',
+    startOffset: 0,
+    endOffset: 0,
+  };
+
+  document.execCommand = jest.fn(() => true);
+  document.getSelection = jest.fn(() => ({
+    rangeCount: 1,
+    getRangeAt: jest.fn(() => mockRange),
+    removeAllRanges: jest.fn(),
+    addRange: jest.fn(),
+  }));
+  document.createElement = jest.fn(() => ({
+    value: '',
+    setAttribute: jest.fn(),
+    select: jest.fn(),
+  }));
+  document.body.appendChild = jest.fn();
+  document.body.removeChild = jest.fn();
+
+  copyTextToClipboard(text, mockCb);
+
+  expect(document.createElement).toHaveBeenCalledWith('textarea');
+  expect(document.body.appendChild).toHaveBeenCalled();
+  expect(document.execCommand).toHaveBeenCalledWith('copy');
+  expect(document.body.removeChild).toHaveBeenCalled();
+  expect(mockCb).toHaveBeenCalledWith(true);
+});