Dart Unit Testing
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The document discusses unit testing in Dart. It covers testing client-side code with HTML tests and headless browser tests. It also covers testing server-side code with VM tests. Examples are provided of writing tests for URL validation and hashing functions. The key points are that testing is important, examples are given for testing both client and server code in Dart, and continuous integration in the cloud helps ensure code quality.
Dart Unit Testing
- 1. Dart Unit Testing Matt Norris @MattNorrisMe
- 2. What will we cover? Client tests Server tests
- 3. Why test?
- 4. I must have put a decimal point in the wrong place. I always mess up some mundane detail!
- 6. Client tests
- 7. HTML unit test test_index.dart import 'package:unittest/unittest.dart'; import 'package:unittest/html_enhanced_config.dart'; ... main() { useHtmlEnhancedConfiguration(); test("url includes scheme", () { expect(isValidUrl(“www.dartlang.org”), false); expect(isValidUrl(“http://www.dartlang.org”), true); });
- 8. HTML unit test test_index.dart import 'package:unittest/unittest.dart'; import 'package:unittest/html_enhanced_config.dart'; ... main() { useHtmlEnhancedConfiguration(); test("url includes scheme", () { expect(isValidUrl(“www.dartlang.org”), false); expect(isValidUrl(“http://www.dartlang.org”), true); });
- 9. HTML unit test test_index.dart import 'package:unittest/unittest.dart'; import 'package:unittest/html_enhanced_config.dart'; ... main() { useHtmlEnhancedConfiguration(); test("url includes scheme", () { expect(isValidUrl(“www.dartlang.org”), false); expect(isValidUrl(“http://www.dartlang.org”), true); });
- 10. HTML unit test
- 12. Headless HTML unit test $ content_shell --dump-render-tree web/test_index.html Content-Type: text/plain PASS All 2 tests passed Collapse All
- 13. Server
- 14. server.dart void main() { ... app.post("/").listen((request) { String url = request.param('url'); String hash = toHash(url); client.set(hash, url).then((_)=>request.response.json(hash);); }); ...
- 15. Server tests
- 16. server_tests.dart import 'package:unittest/unittest.dart'; import 'package:unittest/vm_config.dart'; import 'server.dart' as server; void main() { useVMConfiguration(); String URL = 'http://www.meetup.com/gdg-silicon-valley’; test('HashURL', () { expect(server.toHash(URL), isNotNull); expect(server.toHash(URL), '287b6d95'); ...
- 17. server_tests.dart import 'package:unittest/unittest.dart'; import 'package:unittest/vm_config.dart'; import 'server.dart' as server; void main() { useVMConfiguration(); String URL = 'http://www.meetup.com/gdg-silicon-valley’; test('HashURL', () { expect(server.toHash(URL), isNotNull); expect(server.toHash(URL), '287b6d95'); ...
- 18. server_tests.dart import 'package:unittest/unittest.dart'; import 'package:unittest/vm_config.dart'; import 'server.dart' as server; void main() { useVMConfiguration(); String URL = 'http://www.meetup.com/gdg-silicon-valley’; test('HashURL', () { expect(server.toHash(URL), isNotNull); expect(server.toHash(URL), '287b6d95'); ...
- 19. VM unit tests $ dart server_tests.dart PASS: HashURL
- 20. What did we cover? Client tests Server tests
- 21. What should you do? Try Dart Test things Deploy!
- 22. Such reference... much testing Project github.com/mattnorris/dart-url-shortener Original talk youtu.be/22pE1IP-yoY Continuous Integration in the Cloud drone.io