Add --ignore-timeouts flag for flutter test command (#164437)

As in #105913 described, running integration tests of your app often
times out. The issue for this is that the `test` package has their own
timeout for loading the test suite:


db8cf09150/pkgs/test_core/lib/src/runner/load_suite.dart (L23-L29)

This timeout is not configurable. However, you can bypass this timeout
using `--ignore-timeouts` when running `dart test`. This PR adds the
`--ignore-timeouts` flag to the `flutter test` command and passes it to
the `test` package.

Adding the flag would be the easiest fix for #105913. I will later add
documentation to the integration test docs, that passing this flag will
fix the timeout issue. Otherwise, we would need to make the load test
suite timeout configurable in the `test` package and then somehow set it
in the `flutter test` command.

Fixes #105913

![Screenshot 2025-03-02 at 00 08
59](https://github.com/user-attachments/assets/af84efe3-2174-4531-919f-bffdf1500430)

A screenshot of running `flutter test integration_test
--ignore-timeouts` which surpasses the previous timeout of 12 minutes.

## Pre-launch Checklist

- [x] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [x] I signed the [CLA].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [x] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [x] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [x] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-new channel
on [Discord].

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[Data Driven Fixes]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md

packages/flutter_tools/lib/src/commands/test.dart

@@ -273,10 +273,19 @@ class TestCommand extends FlutterCommand with DeviceBasedDevelopmentArtifacts {
       ..addOption(
         'timeout',
         help:
-            'The default test timeout, specified either '
-            'in seconds (e.g. "60s"), '
-            'as a multiplier of the default timeout (e.g. "2x"), '
-            'or as the string "none" to disable the timeout entirely.',
+            'The default timeout for individual tests, specified either in '
+            'seconds (e.g. "60s"), as a multiplier of the default test timeout '
+            '(e.g. "2x"), or as the string "none" to disable test timeouts '
+            'entirely. This value does not apply to the default test suite '
+            'loading timeout.',
+      )
+      ..addFlag(
+        'ignore-timeouts',
+        help:
+            'Ignore all timeouts. Useful when testing a big application '
+            'that requires a longer time to compile (e.g. running integration '
+            'tests for a Flutter app).',
+        negatable: false,
       )
       ..addFlag(
         FlutterOptions.kWebWasmFlag,
@@ -647,6 +656,7 @@ class TestCommand extends FlutterCommand with DeviceBasedDevelopmentArtifacts {
         reporter: stringArg('reporter'),
         fileReporter: stringArg('file-reporter'),
         timeout: stringArg('timeout'),
+        ignoreTimeouts: boolArg('ignore-timeouts'),
         failFast: boolArg('fail-fast'),
         runSkipped: boolArg('run-skipped'),
         shardIndex: shardIndex,
@@ -675,6 +685,7 @@ class TestCommand extends FlutterCommand with DeviceBasedDevelopmentArtifacts {
         reporter: stringArg('reporter'),
         fileReporter: stringArg('file-reporter'),
         timeout: stringArg('timeout'),
+        ignoreTimeouts: boolArg('ignore-timeouts'),
         failFast: boolArg('fail-fast'),
         runSkipped: boolArg('run-skipped'),
         shardIndex: shardIndex,

packages/flutter_tools/lib/src/test/runner.dart

@@ -55,6 +55,7 @@ interface class FlutterTestRunner {
     String? reporter,
     String? fileReporter,
     String? timeout,
+    bool ignoreTimeouts = false,
     bool failFast = false,
     bool runSkipped = false,
     int? shardIndex,
@@ -75,6 +76,7 @@ interface class FlutterTestRunner {
       if (machine) ...<String>['-r', 'json'] else if (reporter != null) ...<String>['-r', reporter],
       if (fileReporter != null) '--file-reporter=$fileReporter',
       if (timeout != null) ...<String>['--timeout', timeout],
+      if (ignoreTimeouts) '--ignore-timeouts',
       if (concurrency != null) '--concurrency=$concurrency',
       for (final String name in names) ...<String>['--name', name],
       for (final String plainName in plainNames) ...<String>['--plain-name', plainName],
@@ -588,6 +590,7 @@ class SpawnPlugin extends PlatformPlugin {
     String? reporter,
     String? fileReporter,
     String? timeout,
+    bool ignoreTimeouts = false,
     bool failFast = false,
     bool runSkipped = false,
     int? shardIndex,
@@ -637,6 +640,7 @@ class SpawnPlugin extends PlatformPlugin {
       if (machine) ...<String>['-r', 'json'] else if (reporter != null) ...<String>['-r', reporter],
       if (fileReporter != null) '--file-reporter=$fileReporter',
       if (timeout != null) ...<String>['--timeout', timeout],
+      if (ignoreTimeouts) '--ignore-timeouts',
       if (concurrency != null) '--concurrency=$concurrency',
       for (final String name in names) ...<String>['--name', name],
       for (final String plainName in plainNames) ...<String>['--plain-name', plainName],

packages/flutter_tools/test/commands.shard/hermetic/test_test.dart

@@ -157,6 +157,7 @@ dev_dependencies:
       expect(fakePackageTest.lastArgs, isNot(contains('compact')));
       expect(fakePackageTest.lastArgs, isNot(contains('--timeout')));
       expect(fakePackageTest.lastArgs, isNot(contains('30s')));
+      expect(fakePackageTest.lastArgs, isNot(contains('--ignore-timeouts')));
       expect(fakePackageTest.lastArgs, isNot(contains('--concurrency')));
     },
     overrides: <Type, Generator>{
@@ -583,6 +584,7 @@ dev_dependencies:
           '--reporter=compact',
           '--file-reporter=json:reports/tests.json',
           '--timeout=100',
+          '--ignore-timeouts',
           '--concurrency=3',
           '--name=name1',
           '--plain-name=name2',
@@ -616,6 +618,7 @@ const List<String> packageTestArgs = <String>[
   '--file-reporter=json:reports/tests.json',
   '--timeout',
   '100',
+  '--ignore-timeouts',
   '--concurrency=3',
   '--name',
   'name1',
@@ -1562,6 +1565,7 @@ class FakeFlutterTestRunner implements FlutterTestRunner {
     String? reporter,
     String? fileReporter,
     String? timeout,
+    bool ignoreTimeouts = false,
     bool failFast = false,
     bool runSkipped = false,
     int? shardIndex,
@@ -1611,6 +1615,7 @@ class FakeFlutterTestRunner implements FlutterTestRunner {
     String? reporter,
     String? fileReporter,
     String? timeout,
+    bool ignoreTimeouts = false,
     bool failFast = false,
     bool runSkipped = false,
     int? shardIndex,