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flutter/dev/tracing_tests/README.md
Ben Konyi b2b4fb5cbf
Start removing Observatory support and references (#169216) 
This change removes references to Observatory, including:

 - Deprecated flags
 - Deprecated embedder APIs
 - Outdated documentation
 - Documentation instances where "VM service" should have been used
 - Incorrectly named tests / directories

As a part of this change, `--serve-observatory` is no longer a valid
flag.

Observatory is still available for now via the `_serveObservatory` RPC,
but will be removed in a follow up PR once we've prepared for breakages
in G3.

Work towards https://github.com/dart-lang/sdk/issues/50233

FYI @a-siva
2025-05-24 00:00:30 +00:00

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Tracing tests

"Application"

The lib/test.dart and lib/control.dart files in this directory are used by dev/bots/test.dart's runTracingTests function to check whether aspects of the tracing logic in the framework get compiled out in profile and release builds. They're not meant to be run directly.

The strings in these files are used in dev/bots/test.dart.

Tests

The tests in this folder must be run with flutter test --enable-vmservice, since they test that trace data is written to the timeline by connecting to the VM service.

These tests will fail if run without this flag.