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---------
Co-authored-by: Kate Lovett <katelovett@google.com>
Co-authored-by: LongCatIsLooong <31859944+LongCatIsLooong@users.noreply.github.com>
## Add `bySemanticsIdentifier` finder for finding by identifier
### Description
This pull request introduces a new finder, `CommonFinders.bySemanticsIdentifier`, to the Flutter testing framework. This finder allows developers to locate `Semantics` widgets based on their `identifier` property, enhancing the precision and flexibility of widget tests.
### Motivation
Establish a consistent and reliable method for locating elements in integration and end-to-end (e2e) tests. Unlike `label` or `key`, which may carry functional significance within the application, the `identifier` is purely declarative and does not impact functionality. Utilizing the `identifier` for finding semantics widgets ensures that tests can target specific elements without interfering with the app's behavior, thereby enhancing test reliability, maintainability, and reusability across testing frameworks.
### Changes
- **semantics.dart**
- Updated documentation to mention that `identifier` can be matched using `CommonFinders.bySemanticsIdentifier`.
- **finders.dart**
- Added the `bySemanticsIdentifier` method to `CommonFinders`.
- Supports both exact string matches and regular expression patterns.
- Includes error handling to ensure semantics are enabled during tests.
- **finders_test.dart**
- Added tests to verify that `bySemanticsIdentifier` correctly finds widgets by exact identifier and regex patterns.
- Ensures that the finder behaves as expected when semantics are not enabled.
### Usage
Developers can use the new finder in their tests as follows:
```dart
// Exact match
expect(find.bySemanticsIdentifier('Back'), findsOneWidget);
// Regular expression match
expect(find.bySemanticsIdentifier(RegExp(r'^item-')), findsNWidgets(2));
```
## Description
This adds the ability for `find.byTooltip` to use a `RegEx` to match the tooltip.
Also, adds some tests for `byTooltip`, since there weren't any.
## Tests
- added tests
Reverts flutter/flutter#139717
Initiated by: LongCatIsLooong
This change reverts the following previous change:
Original Description:
Fixes https://github.com/flutter/flutter/issues/131435, #104594, #43400
Needs https://github.com/flutter/engine/pull/48774 (to fix the web test failure).
Currently the method we use for text span hit testing `TextPainter.getPositionForOffset` always returns the closest `TextPosition`, even when the given offset is far away from the text.
The new TextPaintes method tells you the layout bounds (`width = letterspacing / 2 + x_advance + letterspacing / 2`, `height = font ascent + font descent`) of a character, the PR changes the hit testing implementation such that a TextSpan is only considered hit if the point-down event landed in one of it's character's layout bounds.
Potential issues:
1. In theory since the text is baseline aligned, we should use the max ascent and max descent of each character to calculate the height of the text span's hit-test region, in case some characters in the span have to fall back to a different font, but that will be slower and it typically doesn't make a huge difference.
This is a breaking change. It also introduces a new finder and a new method `WidgetTester.tapOnText`: `await tester.tapOnText('string to match')` for ease of migration.
Fixes https://github.com/flutter/flutter/issues/131435, #104594, #43400
Needs https://github.com/flutter/engine/pull/48774 (to fix the web test failure).
Currently the method we use for text span hit testing `TextPainter.getPositionForOffset` always returns the closest `TextPosition`, even when the given offset is far away from the text.
The new TextPaintes method tells you the layout bounds (`width = letterspacing / 2 + x_advance + letterspacing / 2`, `height = font ascent + font descent`) of a character, the PR changes the hit testing implementation such that a TextSpan is only considered hit if the point-down event landed in one of it's character's layout bounds.
Potential issues:
1. In theory since the text is baseline aligned, we should use the max ascent and max descent of each character to calculate the height of the text span's hit-test region, in case some characters in the span have to fall back to a different font, but that will be slower and it typically doesn't make a huge difference.
This is a breaking change. It also introduces a new finder and a new method `WidgetTester.tapOnText`: `await tester.tapOnText('string to match')` for ease of migration.
* Added `performAction` to `SemanticsController` as well as specific methods for specific actions
* Added a `scrollable` finder to `find.semantics` as a convenience method for `findAny(<all scrollable actions>)`
* Updated `containsSemantics` and `matchSemantics` matchers to also work on `FinderBase<Semantics>`
Closes#112413
* Pulled `FinderBase` out of `Finder`
* `FinderBase` can be used for any object, not just elements
* Terminology was updated to be more "find" related
* Re-implemented `Finder` using `FinderBase<Element>`
* Backwards compatibility maintained with `_LegacyFinderMixin`
* Introduced base classes for SemanticsNode finders
* Introduced basic SemanticsNode finders through `find.semantics`
* Updated some relevant matchers to make use of the more generic `FinderBase`
Closes#123634Closes#115874
* Update project.pbxproj files to say Flutter rather than Chromium
Also, the templates now have an empty organization so that we don't cause people to give their apps a Flutter copyright.
* Update the copyright notice checker to require a standard notice on all files
* Update copyrights on Dart files. (This was a mechanical commit.)
* Fix weird license headers on Dart files that deviate from our conventions; relicense Shrine.
Some were already marked "The Flutter Authors", not clear why. Their
dates have been normalized. Some were missing the blank line after the
license. Some were randomly different in trivial ways for no apparent
reason (e.g. missing the trailing period).
* Clean up the copyrights in non-Dart files. (Manual edits.)
Also, make sure templates don't have copyrights.
* Fix some more ORGANIZATIONNAMEs
* add trailing commas on list/map/parameters
* add trailing commas on Invocation with nb of arg>1
* add commas for widget containing widgets
* add trailing commas if instantiation contains trailing comma
* revert bad change
* only tap on widgets reachable by hit testing
* use FractionalOffset
* added tests
* check finder finds correct widget
* undo unintentional changes
* address comments
* style fix
* add Directionality in test
* fix analysis warning
