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@admosity admosity commented Sep 23, 2024

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:

// Exact match
expect(find.bySemanticsIdentifier('Back'), findsOneWidget);

// Regular expression match
expect(find.bySemanticsIdentifier(RegExp(r'^item-')), findsNWidgets(2));

@github-actions github-actions bot added a: tests "flutter test", flutter_test, or one of our tests framework flutter/packages/flutter repository. See also f: labels. a: accessibility Accessibility, e.g. VoiceOver or TalkBack. (aka a11y) labels Sep 23, 2024
@admosity admosity force-pushed the feat/finders-by-semantics-identifier branch 2 times, most recently from a5e90a6 to bf2573e Compare September 24, 2024 02:27
@admosity admosity force-pushed the feat/finders-by-semantics-identifier branch from 840c18f to eaf1b53 Compare September 24, 2024 12:31
@admosity admosity force-pushed the feat/finders-by-semantics-identifier branch from ba618eb to 4ecb985 Compare September 24, 2024 14:22
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@nate-thegrate nate-thegrate left a comment

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Thanks for adding this, looks fantastic overall!

Just have a bunch of whitespace suggestions :)

@admosity admosity force-pushed the feat/finders-by-semantics-identifier branch from f7b0b6e to cfb1cc4 Compare September 24, 2024 15:17
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LGTM, thanks for making this addition!

@Piinks Piinks requested a review from chunhtai September 24, 2024 22:22
/// If the `skipOffstage` argument is true (the default), then this skips
/// nodes that are [Offstage] or that are from inactive [Route]s.
Finder bySemanticsIdentifier(Pattern identifier, {bool skipOffstage = true}) {
if (!SemanticsBinding.instance.semanticsEnabled) {
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Can you refactor some code with the bySemanticsLabel, a big portion is duplicated

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Done 👍🏻

@admosity admosity force-pushed the feat/finders-by-semantics-identifier branch 2 times, most recently from 85bf918 to 6761175 Compare October 6, 2024 00:18
@admosity admosity requested a review from chunhtai October 6, 2024 00:51
@admosity admosity force-pushed the feat/finders-by-semantics-identifier branch from d39640b to aaf6632 Compare October 7, 2024 13:43
admosity and others added 7 commits October 7, 2024 09:43
…ics widgets

- Introduce `CommonFinders.bySemanticsIdentifier` to enable finding Semantics widgets by their `identifier`.
- Update `semantics.dart` documentation to include usage of the new finder.
- Add comprehensive tests in `finders_test.dart` to verify functionality with both exact strings and regular expressions.

Sample usage:
```dart
expect(find.bySemanticsIdentifier('Back'), findsOneWidget);
expect(find.bySemanticsIdentifier(RegExp(r'^item-')), findsNWidgets(2));
```
- Refactored `bySemanticsLabel` and `bySemanticsIdentifier` methods to use a common private method `_bySemanticsProperty`.
- Improved code readability and reduced duplication by extracting common logic for semantics property retrieval.
- Updated parameter names for consistency and clarity.
Renamed the parameter `pattern` to `label` in the `bySemanticsLabel` method and `pattern` to `identifier` in the `bySemanticsIdentifier` method.
@admosity admosity force-pushed the feat/finders-by-semantics-identifier branch from aaf6632 to f72f56e Compare October 7, 2024 13:43
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kevmoo commented Oct 8, 2024

We good here @chunhtai ?

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LGTM

@chunhtai chunhtai added the autosubmit Merge PR when tree becomes green via auto submit App label Oct 8, 2024
@auto-submit auto-submit bot merged commit 37d5dc4 into flutter:master Oct 8, 2024
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5 participants