flutter test does not understand concurrency #125940
Description
Possible fix: Mimic #115160
Is there an existing issue for this?
- I have searched the existing issues
- I have read the guide to filing a bug
Steps to reproduce
flutter test
Expected results
Tests should be executed one-by-one, since we specify concurrency=1 in dart_test.yaml
Actual results
They are executed parallelly.
flutter test
00:02 +0: /Users/tom/RefCode/bug/test/c_test.dart: hello this is test
c_test is running (i=0)
00:02 +0: /Users/tom/RefCode/bug/test/b_test.dart: hello this is test
b_test is running (i=0)
00:02 +0: /Users/tom/RefCode/bug/test/a_test.dart: hello this is test
a_test is running (i=0)
00:03 +0: /Users/tom/RefCode/bug/test/c_test.dart: hello this is test
c_test is running (i=1)
00:03 +0: /Users/tom/RefCode/bug/test/b_test.dart: hello this is test
b_test is running (i=1)
00:03 +0: /Users/tom/RefCode/bug/test/a_test.dart: hello this is test
a_test is running (i=1)
00:03 +0: /Users/tom/RefCode/bug/test/c_test.dart: hello this is test
c_test is running (i=2)
00:03 +0: /Users/tom/RefCode/bug/test/b_test.dart: hello this is test
b_test is running (i=2)
00:03 +0: /Users/tom/RefCode/bug/test/a_test.dart: hello this is test
a_test is running (i=2)
00:04 +0: /Users/tom/RefCode/bug/test/c_test.dart: hello this is test
c_test is running (i=3)
00:04 +0: /Users/tom/RefCode/bug/test/b_test.dart: hello this is test
b_test is running (i=3)
00:04 +0: /Users/tom/RefCode/bug/test/a_test.dart: hello this is test
a_test is running (i=3)
00:04 +0: /Users/tom/RefCode/bug/test/c_test.dart: hello this is test
c_test is running (i=4)
00:04 +0: /Users/tom/RefCode/bug/test/b_test.dart: hello this is test
b_test is running (i=4)
00:04 +0: /Users/tom/RefCode/bug/test/a_test.dart: hello this is test
a_test is running (i=4)
00:05 +0: /Users/tom/RefCode/bug/test/c_test.dart: hello this is test
c_test is running (i=5)
00:05 +0: /Users/tom/RefCode/bug/test/b_test.dart: hello this is test
b_test is running (i=5)
00:05 +0: /Users/tom/RefCode/bug/test/a_test.dart: hello this is test
a_test is running (i=5)
00:05 +0: /Users/tom/RefCode/bug/test/c_test.dart: hello this is test
c_test is running (i=6)
00:05 +0: /Users/tom/RefCode/bug/test/b_test.dart: hello this is test
b_test is running (i=6)
00:05 +0: /Users/tom/RefCode/bug/test/a_test.dart: hello this is test
a_test is running (i=6)
00:06 +0: /Users/tom/RefCode/bug/test/c_test.dart: hello this is test
c_test is running (i=7)
00:06 +0: /Users/tom/RefCode/bug/test/b_test.dart: hello this is test
b_test is running (i=7)
00:06 +0: /Users/tom/RefCode/bug/test/a_test.dart: hello this is test
a_test is running (i=7)
00:06 +0: /Users/tom/RefCode/bug/test/c_test.dart: hello this is test
c_test is running (i=8)
00:06 +0: /Users/tom/RefCode/bug/test/b_test.dart: hello this is test
b_test is running (i=8)
00:06 +0: /Users/tom/RefCode/bug/test/a_test.dart: hello this is test
a_test is running (i=8)
00:07 +0: /Users/tom/RefCode/bug/test/c_test.dart: hello this is test
c_test is running (i=9)
00:07 +0: /Users/tom/RefCode/bug/test/b_test.dart: hello this is test
b_test is running (i=9)
00:07 +0: /Users/tom/RefCode/bug/test/a_test.dart: hello this is test
a_test is running (i=9)
00:07 +3: All tests passed!
Code sample
Code sample
dart_test.yaml
concurrency: 1
test/a_test.dart
import 'dart:io';
import 'package:flutter_test/flutter_test.dart';
void main() {
test('hello this is test', () {
for (var i = 0; i < 10; ++i) {
print('a_test is running (i=$i)');
sleep(const Duration(milliseconds: 500));
}
});
}test/b_test.dart
same, just change the name in "print", i.e.
import 'dart:io';
import 'package:flutter_test/flutter_test.dart';
void main() {
test('hello this is test', () {
for (var i = 0; i < 10; ++i) {
print('b_test is running (i=$i)');
sleep(const Duration(milliseconds: 500));
}
});
}
test/c_test.dart
similar to b_test.dart
import 'dart:io';
import 'package:flutter_test/flutter_test.dart';
void main() {
test('hello this is test', () {
for (var i = 0; i < 10; ++i) {
print('c_test is running (i=$i)');
sleep(const Duration(milliseconds: 500));
}
});
}
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