49ccfb7302
I recommend reviewing with [whitespace changes disabled](https://github.com/flutter/flutter/pull/157971/files?diff=split&w=1). Changes: 1. Replaces `expect(string.contains('foo'), isTrue)` with `expect(string, contains('foo'))` 2. Replaces `try/finally` with `addTearDown` Follow-up to: https://github.com/flutter/flutter/pull/157482#discussion_r1813939657
Integration tests
These tests are not hermetic, and use the actual Flutter SDK. While
they don't require actual devices, they run flutter_tester to test
Dart VM and Flutter integration.
Use this command to run (from the flutter_tools directory):
../../bin/cache/dart-sdk/bin/dart run test test/integration.shard
You need to have downloaded the Dart SDK in your Flutter clone for this
to work. Running ../../bin/flutter will automatically download it.
Coverage exclusion
These tests are expensive to run and do not give meaningful coverage
information for the flutter tool (since they are black-box tests that
run the tool as a subprocess, rather than being unit tests). For this
reason, they are in a separate shard when running on continuous
integration and are not run when calculating coverage.
Adding new test files
When adding a new test file make sure that it ends with _test.dart, or else it will not be run.