dart-sdk/tests/dart2js_2/async_stacktrace_test.dart
Joshua Litt 05ca544f15 [dart2js] Move tests/compiler/dart2js_extra to tests/dart2js_2.
Change-Id: Iaa0ca2b4f2d1b15f79ddca37834d3ed2497bc068
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149242
Commit-Queue: Joshua Litt <joshualitt@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
2020-06-03 15:15:30 +00:00

122 lines
2.4 KiB
Dart

// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
// @dart = 2.7
import "dart:async";
import "package:expect/expect.dart";
import "package:async_helper/async_helper.dart";
class Tracer {
final String expected;
final String name;
String _trace = "";
Tracer(this.expected, [this.name]);
void trace(msg) {
if (name != null) {
print("Tracing $name: $msg");
}
_trace += msg;
}
void done() {
Expect.equals(expected, _trace);
}
}
Future test1(Tracer tracer) {
foo() async
* //# asyncStar: ok
{
var savedStackTrace;
try {
try {
tracer.trace("a");
throw "Error";
} catch (e, st) {
tracer.trace("b");
savedStackTrace = st;
}
tracer.trace("c");
await new Future.error("Error 2", savedStackTrace);
tracer.trace("d");
} catch (e, st) {
tracer.trace("e");
Expect.equals(savedStackTrace.toString(), st.toString());
}
tracer.trace("f");
}
return foo()
.toList() //# asyncStar: continued
;
}
Future test2(Tracer tracer) {
var savedStackTrace;
foo() async
* //# asyncStar: continued
{
try {
tracer.trace("a");
throw "Error";
} catch (e, st) {
tracer.trace("b");
savedStackTrace = st;
}
tracer.trace("c");
await new Future.error("Error 2", savedStackTrace);
tracer.trace("d");
}
return foo()
.toList() //# asyncStar: continued
.catchError((e, st) {
tracer.trace("e");
Expect.equals(savedStackTrace.toString(), st.toString());
});
}
Future test3(Tracer tracer) {
var savedStackTrace;
foo() async
* //# asyncStar: continued
{
try {
tracer.trace("a");
throw "Error";
} catch (e, st) {
tracer.trace("b");
savedStackTrace = st;
rethrow;
}
}
return foo()
.toList() //# asyncStar: continued
.catchError((e, st) {
tracer.trace("c");
Expect.equals(savedStackTrace.toString(), st.toString());
});
}
runTest(String expectedTrace, Future test(Tracer tracer)) async {
Tracer tracer = new Tracer(expectedTrace);
await test(tracer);
tracer.done();
}
runTests() async {
await runTest("abcef", test1);
await runTest("abce", test2);
await runTest("abc", test3);
}
main() {
asyncTest(runTests);
}