Get the test updater script working again. #1743
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When I made the style changes language versions for Dart 3.8, I changed how tests are written to allow a single test to have different expected outputs at different language versions. I was pressed for time, so that broke the automated test updater which doesn't know how to handle versions. This gets it working again. In the process, I decided to tweak how the final newline in test files is handled. For years, I avoided having a trailing newline because I though it would confuse the formatter. At some point that may have even been true. But it turns out to be fine and it's more idiomatic to have a trailing newline at the end of a text file. The test updater now ensures that and I went ahead and normalized all of the tests to have trailing newlines. There are no other changes to the test files.
kallentu
approved these changes
Jul 17, 2025
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When I made the style changes language versions for Dart 3.8, I changed how tests are written to allow a single test to have different expected outputs at different language versions.
I was pressed for time, so that broke the automated test updater which doesn't know how to handle versions. This gets it working again.
In the process, I decided to tweak how the final newline in test files is handled. For years, I avoided having a trailing newline because I though it would confuse the formatter. At some point that may have even been true. But it turns out to be fine and it's more idiomatic to have a trailing newline at the end of a text file.
The test updater now ensures that and I went ahead and normalized all of the tests to have trailing newlines. There are no other changes to the test files. The only actual change in this PR is at the very end in
tool/update_tests.dart.