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Add find.backButton finder and StandardComponentType enum to find components in tests. (#149349 )

## Description

This adds `find.backButton()` in the Common Finders to allow finding different types of standard UI elements. It works by attaching a key made from an enum value in a new enum called `StandardComponentType` to all of the standard widgets that perform the associated function.

I also substituted the finder in several places where it is useful in tests.

This allows writing tests that want to find the "back" button without having to know exactly which icon the back button uses under what circumstances.  To do it correctly is actually quite complicated, since there are several adaptations that occur (based on platform, and whether it is web or not).

## Tests
 - Added tests.

2024-07-30 01:29:31 +00:00

lib

Add find.backButton finder and StandardComponentType enum to find components in tests. (#149349 )

2024-07-30 01:29:31 +00:00

test

Add find.backButton finder and StandardComponentType enum to find components in tests. (#149349 )

2024-07-30 01:29:31 +00:00

test_fixes

Update old wiki links (#149544 )

2024-06-17 17:26:08 +00:00

test_private

Roll pub packages (#151816 )

2024-07-16 12:34:24 +00:00

test_profile

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test_release

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analysis_options.yaml

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build.yaml

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dart_test.yaml

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LICENSE

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pubspec.yaml

Roll pub packages (#151816 )

2024-07-16 12:34:24 +00:00

README.md

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README.md

Flutter

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