Lasse R.H. Nielsen
f8086c81ae
Collects files from `package:async_helper` and `tests/language` that are generally useful, so that all test-related helpers are in `package:expect`. Moves the two libraries from `package:async_helper` into `package:expect`, and the `tests/language/static_type_helper.dart` file too. Deprecates `async_minitest.dart`, to follow `minitest.dart`, expecting the Flutter use of it to have been fixed to not break on deprecation (I believe Flutter no longer breaks builds on deprecations at all). Patch 1 is the actual change. Patch 2+4+8 is changing all existing references to the files. Patch 6 ignores deprecation in files still using `async_minitest.dart`. 3+5+7+9 are updating this text to make the numbers match. Then it's just test-expectations and small tweaks from there. Change-Id: I1b665135b5fef9b9a0c3b340ffe9daf874d0174c Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/373120 Reviewed-by: Nate Bosch <nbosch@google.com> Reviewed-by: Devon Carew <devoncarew@google.com> Commit-Queue: Lasse Nielsen <lrn@google.com>
67 lines
2.1 KiB
Dart
67 lines
2.1 KiB
Dart
// Copyright (c) 2023, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// Basic tests for the dart2js-only polyfill for WeakReference and Finalizer API
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// for the dart2js backends.
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import 'package:expect/legacy/minitest.dart'; // ignore: deprecated_member_use_from_same_package
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import 'dart:js_interop_unsafe';
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import 'dart:js_interop';
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class Foo {
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int close() {
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return 42; // no-op, dropped return value.
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}
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}
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void callback(Foo f) {
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f.close();
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}
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main() {
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// Remove global bindings to simulate a JavaScript environment before these
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// bindings were added.
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globalContext.delete('WeakRef'.toJS);
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globalContext.delete('FinalizationRegistry'.toJS);
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test('weak reference', () {
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var list = ["foo"];
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var weakRef = WeakReference<List<String>>(list);
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expect(weakRef.target, equals(list));
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// JavaScript API throws when the representation of target is not 'object'
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// in the compiled JavaScript. The polyfill does not check argument
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// types. This verifies that the polyfill is being used.
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WeakReference<String>("foo");
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WeakReference<int>(1);
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});
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test('finalizer', () {
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var finalizer = Finalizer<Foo>(callback);
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var list = ["foo"];
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var foo = Foo();
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// Should not cause errors to attach or detach
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finalizer.attach(list, foo);
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finalizer.attach(list, foo, detach: list);
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finalizer.detach(list);
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// Should not cause errors to use a different detach token
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var detachList = [1, 2, 3];
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finalizer.attach(list, foo, detach: detachList);
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finalizer.detach(detachList);
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// JavaScript API returns false when unknown target detached.
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// Should not cause an error to detach unknown token.
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var unknownList = [2, 4, 6];
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finalizer.detach(unknownList);
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// JavaScript API throws when target and detach token are not objects. The
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// polyfill does not check argument types. This verifies the polyfill is
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// being used.
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finalizer.attach("token string value", foo);
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finalizer.detach("detach string value");
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});
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}
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