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Oct 25, 2025
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Add a sentence to clarify "Platform" #2550

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9cc5111
Add a sentence to clarify "Platform"
natebosch Oct 16, 2025
2734350
drop extra newline
natebosch Oct 16, 2025
1560aa1
Add changelog
natebosch Oct 16, 2025
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1 change: 1 addition & 0 deletions pkgs/test/CHANGELOG.md
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Expand Up @@ -4,6 +4,7 @@
* Require Dart 3.7
* Add `--coverage-path` and `--branch-coverage` options to `dart test`.
* Serve dart2wasm source map files.
* Doc edit: clarify in README that a platform selector includes the compiler.

## 1.26.3

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10 changes: 7 additions & 3 deletions pkgs/test/README.md
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Expand Up @@ -322,12 +322,15 @@ adding a [`test_on` field] to your package config file.

Platform selectors use the [boolean selector syntax] defined in the
[`boolean_selector`] package, which is a subset of Dart's expression syntax that
only supports boolean operations. The following identifiers are defined:
only supports boolean operations. The platform selectors identify overlapping
subsets of the ways that Dart code can be compiled and run.

[boolean selector syntax]: https://github.com/dart-lang/boolean_selector/blob/master/README.md

[`boolean_selector`]: https://pub.dev/packages/boolean_selector

The following identifiers are defined:

* `vm`: Whether the test is running on the command-line Dart VM.

* `chrome`: Whether the test is running on Google Chrome.
Expand Down Expand Up @@ -379,8 +382,9 @@ only supports boolean operations. The following identifiers are defined:

* `source`: Whether the test has been run with no compiler (from source).

For example, if you wanted to run a test on every browser but Chrome, you would
write `@TestOn('browser && !chrome')`.
For example, if you wanted to run a test on every browser but Chrome compiled
with dart2js (in opposition to dart2wasm), you would write
`@TestOn('browser && !chrome && dart2js')`.

### Running Tests on Node.js

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