unit testing - How to test Dart Polymer elements using the new Test library? -


how test polymer elements using new test library?

using new test library test dart polymer element, build my_element_test.html as prescribed. please see repo: polymer-dart-testing.

no polymer initiation passes

my_element_test.html , my_element_test.dart (commenting out polymer initiation) passes tests expected:

my_element_test.html

<!doctype html> <html>   <head>     <title>my element test</title>     <link rel="import" href="packages/polymer_dart_testing/my_element.html">     <link rel="x-dart-test" href="my_element_test.dart">     <script src="packages/test/dart.js"></script>   </head>   <body>     <div>custom html test custom.</div>     <my-element></my-element>   </body> </html>

my_element_test.dart

import 'package:test/test.dart'; import 'package:polymer_dart_testing/my_element.dart'; import 'package:polymer/polymer.dart';  import 'dart:html';  main() {    setup(() async {     // await initpolymer();     // return await polymer.onready;   });    test('custom_html_test', (){     expect(true, istrue);   }); }

loading in dartium without pub run test... passes in console , shows custom element, after adding test/my_element_test.html polymer entry point in pubspec.yaml.

pubspec.yaml

transformers: - polymer:     entry_points:      - web/index.html      - test/my_element_test.html

my_element_test.html

<!doctype html> <html>   <head>     <title>my element test</title>     <link rel="import" href="packages/polymer_dart_testing/my_element.html">   </head>   <body>     <div>custom html test custom.</div>     <my-element></my-element>     <script type="application/dart" src="my_element_test.dart"></script>   </body> </html>

my_element_test.dart

import 'package:test/test.dart'; import 'package:polymer_dart_testing/my_element.dart'; import 'package:polymer/polymer.dart';  import 'dart:html';  main() {    setup(() async {     await initpolymer();     return await polymer.onready;   });    test('custom_html_test', (){     expect(true, istrue);   }); }

however, pub run test... fails when initiating polymer , adding pubspec entry point.

$ pub serve loading source assets...  loading polymer , test/pub_serve transformers...  serving polymer_dart_testing web  on http://localhost:8080 serving polymer_dart_testing test on http://localhost:8081 build completed  ... ... /my_element_test.html.polymer.bootstrap.dart.browser_test.dart →  not find asset polymer_dart_testing|test/my_element_test.html.polymer.bootstrap.dart.browser_test.dart. 
$ pub run test --pub-serve=8081 -p content-shell "pub serve" compiling test/my_element_test.dart... 00:00 +0: load error                                                            00:00 +0 -1: load error                                                                                failed load "test/my_element_test.dart": failed load script @ http://localhost:8081/my_element_test.html.polymer.bootstrap.dart.browser_test.dart. 00:00 +0 -1: tests failed.

the annotation @whenpolymerready on main() missing. test transformer (explained in readme.md of test package) should added transformer section in pubspec.yaml.


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