c881808ed2
Reverts flutter/flutter#135249 Initiated by: zanderso This change reverts the following previous change: Original Description: Changes golden tests on CanvasKit to use Layer.toImage instead of browser APIs for screenshots. This brings it more in line with other platforms and should also fix some async timing bugs with tests.
84 lines
2.7 KiB
Dart
84 lines
2.7 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:convert';
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import 'dart:html' as html;
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import 'dart:typed_data';
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import 'package:matcher/expect.dart' show fail;
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import 'goldens.dart';
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/// An unsupported [GoldenFileComparator] that exists for API compatibility.
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class LocalFileComparator extends GoldenFileComparator {
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@override
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Future<bool> compare(Uint8List imageBytes, Uri golden) {
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throw UnsupportedError('LocalFileComparator is not supported on the web.');
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}
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@override
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Future<void> update(Uri golden, Uint8List imageBytes) {
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throw UnsupportedError('LocalFileComparator is not supported on the web.');
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}
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}
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/// Returns whether [test] and [master] are pixel by pixel identical.
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///
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/// This method is not supported on the web and throws an [UnsupportedError]
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/// when called.
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Future<ComparisonResult> compareLists(List<int> test, List<int> master) async {
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throw UnsupportedError('Golden testing is not supported on the web.');
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}
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/// The default [WebGoldenComparator] implementation for `flutter test`.
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///
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/// This comparator will send a request to the test server for golden comparison
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/// which will then defer the comparison to [goldenFileComparator].
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///
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/// See also:
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///
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/// * [matchesGoldenFile], the function from [flutter_test] that invokes the
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/// comparator.
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class DefaultWebGoldenComparator extends WebGoldenComparator {
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/// Creates a new [DefaultWebGoldenComparator] for the specified [testFile].
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///
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/// Golden file keys will be interpreted as file paths relative to the
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/// directory in which [testFile] resides.
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///
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/// The [testFile] URL must represent a file.
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DefaultWebGoldenComparator(this.testUri);
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/// The test file currently being executed.
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///
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/// Golden file keys will be interpreted as file paths relative to the
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/// directory in which this file resides.
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Uri testUri;
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@override
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Future<bool> compare(double width, double height, Uri golden) async {
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final String key = golden.toString();
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final html.HttpRequest request = await html.HttpRequest.request(
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'flutter_goldens',
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method: 'POST',
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sendData: json.encode(<String, Object>{
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'testUri': testUri.toString(),
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'key': key,
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'width': width.round(),
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'height': height.round(),
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}),
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);
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final String response = request.response as String;
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if (response == 'true') {
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return true;
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}
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fail(response);
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}
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@override
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Future<void> update(double width, double height, Uri golden) async {
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// Update is handled on the server side, just use the same logic here
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await compare(width, height, golden);
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}
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}
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