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[flutter_tools] deflake fastReassemble test (#62152)

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Jonah Williams 2020-07-24 15:17:39 -07:00 committed by GitHub
parent 5e0ba2290f
commit a7db3591cb
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1 changed files with 19 additions and 4 deletions
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23
packages/flutter_tools/test/integration.shard/hot_reload_test.dart
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@ -84,12 +84,25 @@ void main() {
});
test('fastReassemble behavior triggers hot reload behavior with evaluation of expression', () async {
final StringBuffer stdout = StringBuffer();
final StreamSubscription<String> subscription = flutter.stdout.listen(stdout.writeln);
final Completer<void> tick1 = Completer<void>();
final Completer<void> tick2 = Completer<void>();
final Completer<void> tick3 = Completer<void>();
final StreamSubscription<String> subscription = flutter.stdout.listen((String line) {
if (line.contains('TICK 1')) {
tick1.complete();
}
if (line.contains('TICK 2')) {
tick2.complete();
}
if (line.contains('TICK 3')) {
tick3.complete();
}
});
await flutter.run(withDebugger: true);
final int port = flutter.vmServicePort;
final VmService vmService = await vmServiceConnectUri('ws://localhost:$port/ws');
await tick1.future;
try {
// Since the single-widget reload feature is not yet implemented, manually
// evaluate the expression for the reload.
@ -108,7 +121,7 @@ void main() {
// _extensionType indicates success.
expect(fastReassemble1.type, '_extensionType');
expect(stdout.toString(), contains('(((TICK 2))))'));
await tick2.future;
// verify evaluation did not produce invalidat type by checking with dart:core
// type.
@ -123,7 +136,9 @@ void main() {
// _extensionType indicates success.
expect(fastReassemble2.type, '_extensionType');
expect(stdout.toString(), isNot(contains('(((TICK 3))))')));
unawaited(tick3.future.whenComplete(() {
fail('Should not complete');
}));
// Invocation without evaluation leads to runtime error.
expect(vmService