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Unified Diff: packages/stack_trace/test/trace_test.dart

Issue 1400473008: Roll Observatory packages and add a roll script (Closed) Base URL: git@github.com:dart-lang/observatory_pub_packages.git@master
Patch Set: Created 5 years, 2 months ago
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Index: packages/stack_trace/test/trace_test.dart
diff --git a/packages/stack_trace/test/trace_test.dart b/packages/stack_trace/test/trace_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..d12bc71f1706822218f19b5bf2796b6376fd29a7
--- /dev/null
+++ b/packages/stack_trace/test/trace_test.dart
@@ -0,0 +1,430 @@
+// Copyright (c) 2013, 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.
+
+library trace_test;
+
+import 'package:path/path.dart' as path;
+import 'package:stack_trace/stack_trace.dart';
+import 'package:test/test.dart';
+
+String getStackTraceString() {
+ try {
+ throw '';
+ } catch (_, stackTrace) {
+ return stackTrace.toString();
+ }
+}
+
+StackTrace getStackTraceObject() {
+ try {
+ throw '';
+ } catch (_, stackTrace) {
+ return stackTrace;
+ }
+}
+
+Trace getCurrentTrace([int level]) => new Trace.current(level);
+
+Trace nestedGetCurrentTrace(int level) => getCurrentTrace(level);
+
+void main() {
+ // This just shouldn't crash.
+ test('a native stack trace is parseable', () => new Trace.current());
+
+ group('.parse', () {
+ test('.parse parses a VM stack trace correctly', () {
+ var trace = new Trace.parse(
+ '#0 Foo._bar (file:///home/nweiz/code/stuff.dart:42:21)\n'
+ '#1 zip.<anonymous closure>.zap (dart:async/future.dart:0:2)\n'
+ '#2 zip.<anonymous closure>.zap (http://pub.dartlang.org/thing.'
+ 'dart:1:100)');
+
+ expect(trace.frames[0].uri,
+ equals(Uri.parse("file:///home/nweiz/code/stuff.dart")));
+ expect(trace.frames[1].uri, equals(Uri.parse("dart:async/future.dart")));
+ expect(trace.frames[2].uri,
+ equals(Uri.parse("http://pub.dartlang.org/thing.dart")));
+ });
+
+ test('parses a V8 stack trace correctly', () {
+ var trace = new Trace.parse(
+ 'Error\n'
+ ' at Foo._bar (http://pub.dartlang.org/stuff.js:42:21)\n'
+ ' at http://pub.dartlang.org/stuff.js:0:2\n'
+ ' at zip.<anonymous>.zap '
+ '(http://pub.dartlang.org/thing.js:1:100)');
+
+ expect(trace.frames[0].uri,
+ equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
+ expect(trace.frames[1].uri,
+ equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
+ expect(trace.frames[2].uri,
+ equals(Uri.parse("http://pub.dartlang.org/thing.js")));
+
+ trace = new Trace.parse(
+ "Exception: foo\n"
+ ' at Foo._bar (http://pub.dartlang.org/stuff.js:42:21)\n'
+ ' at http://pub.dartlang.org/stuff.js:0:2\n'
+ ' at zip.<anonymous>.zap '
+ '(http://pub.dartlang.org/thing.js:1:100)');
+
+ expect(trace.frames[0].uri,
+ equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
+ expect(trace.frames[1].uri,
+ equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
+ expect(trace.frames[2].uri,
+ equals(Uri.parse("http://pub.dartlang.org/thing.js")));
+
+ trace = new Trace.parse(
+ 'Exception: foo\n'
+ ' bar\n'
+ ' at Foo._bar (http://pub.dartlang.org/stuff.js:42:21)\n'
+ ' at http://pub.dartlang.org/stuff.js:0:2\n'
+ ' at zip.<anonymous>.zap '
+ '(http://pub.dartlang.org/thing.js:1:100)');
+
+ expect(trace.frames[0].uri,
+ equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
+ expect(trace.frames[1].uri,
+ equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
+ expect(trace.frames[2].uri,
+ equals(Uri.parse("http://pub.dartlang.org/thing.js")));
+ });
+
+ // JavaScriptCore traces are just like V8, except that it doesn't have a
+ // header and it starts with a tab rather than spaces.
+ test('parses a JavaScriptCore stack trace correctly', () {
+ var trace = new Trace.parse(
+ '\tat Foo._bar (http://pub.dartlang.org/stuff.js:42:21)\n'
+ '\tat http://pub.dartlang.org/stuff.js:0:2\n'
+ '\tat zip.<anonymous>.zap '
+ '(http://pub.dartlang.org/thing.js:1:100)');
+
+ expect(trace.frames[0].uri,
+ equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
+ expect(trace.frames[1].uri,
+ equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
+ expect(trace.frames[2].uri,
+ equals(Uri.parse("http://pub.dartlang.org/thing.js")));
+
+ trace = new Trace.parse(
+ '\tat Foo._bar (http://pub.dartlang.org/stuff.js:42:21)\n'
+ '\tat \n'
+ '\tat zip.<anonymous>.zap '
+ '(http://pub.dartlang.org/thing.js:1:100)');
+
+ expect(trace.frames[0].uri,
+ equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
+ expect(trace.frames[1].uri,
+ equals(Uri.parse("http://pub.dartlang.org/thing.js")));
+ });
+
+ test('parses a Firefox/Safari stack trace correctly', () {
+ var trace = new Trace.parse(
+ 'Foo._bar@http://pub.dartlang.org/stuff.js:42\n'
+ 'zip/<@http://pub.dartlang.org/stuff.js:0\n'
+ 'zip.zap(12, "@)()/<")@http://pub.dartlang.org/thing.js:1');
+
+ expect(trace.frames[0].uri,
+ equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
+ expect(trace.frames[1].uri,
+ equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
+ expect(trace.frames[2].uri,
+ equals(Uri.parse("http://pub.dartlang.org/thing.js")));
+
+ trace = new Trace.parse(
+ 'zip/<@http://pub.dartlang.org/stuff.js:0\n'
+ 'Foo._bar@http://pub.dartlang.org/stuff.js:42\n'
+ 'zip.zap(12, "@)()/<")@http://pub.dartlang.org/thing.js:1');
+
+ expect(trace.frames[0].uri,
+ equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
+ expect(trace.frames[1].uri,
+ equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
+ expect(trace.frames[2].uri,
+ equals(Uri.parse("http://pub.dartlang.org/thing.js")));
+
+ trace = new Trace.parse(
+ 'zip.zap(12, "@)()/<")@http://pub.dartlang.org/thing.js:1\n'
+ 'zip/<@http://pub.dartlang.org/stuff.js:0\n'
+ 'Foo._bar@http://pub.dartlang.org/stuff.js:42');
+
+ expect(trace.frames[0].uri,
+ equals(Uri.parse("http://pub.dartlang.org/thing.js")));
+ expect(trace.frames[1].uri,
+ equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
+ expect(trace.frames[2].uri,
+ equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
+ });
+
+ test('parses a Firefox/Safari stack trace containing native code correctly',
+ () {
+ var trace = new Trace.parse(
+ 'Foo._bar@http://pub.dartlang.org/stuff.js:42\n'
+ 'zip/<@http://pub.dartlang.org/stuff.js:0\n'
+ 'zip.zap(12, "@)()/<")@http://pub.dartlang.org/thing.js:1\n'
+ '[native code]');
+
+ expect(trace.frames[0].uri,
+ equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
+ expect(trace.frames[1].uri,
+ equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
+ expect(trace.frames[2].uri,
+ equals(Uri.parse("http://pub.dartlang.org/thing.js")));
+ expect(trace.frames.length, equals(3));
+ });
+
+ test('parses a Firefox/Safari stack trace without a method name correctly',
+ () {
+ var trace = new Trace.parse(
+ 'http://pub.dartlang.org/stuff.js:42\n'
+ 'zip/<@http://pub.dartlang.org/stuff.js:0\n'
+ 'zip.zap(12, "@)()/<")@http://pub.dartlang.org/thing.js:1');
+
+ expect(trace.frames[0].uri,
+ equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
+ expect(trace.frames[0].member, equals('<fn>'));
+ expect(trace.frames[1].uri,
+ equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
+ expect(trace.frames[2].uri,
+ equals(Uri.parse("http://pub.dartlang.org/thing.js")));
+ });
+
+ test('parses a Firefox/Safari stack trace with an empty line correctly',
+ () {
+ var trace = new Trace.parse(
+ 'Foo._bar@http://pub.dartlang.org/stuff.js:42\n'
+ '\n'
+ 'zip/<@http://pub.dartlang.org/stuff.js:0\n'
+ 'zip.zap(12, "@)()/<")@http://pub.dartlang.org/thing.js:1');
+
+ expect(trace.frames[0].uri,
+ equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
+ expect(trace.frames[1].uri,
+ equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
+ expect(trace.frames[2].uri,
+ equals(Uri.parse("http://pub.dartlang.org/thing.js")));
+ });
+
+ test('parses a Firefox/Safari stack trace with a column number correctly',
+ () {
+ var trace = new Trace.parse(
+ 'Foo._bar@http://pub.dartlang.org/stuff.js:42:2\n'
+ 'zip/<@http://pub.dartlang.org/stuff.js:0\n'
+ 'zip.zap(12, "@)()/<")@http://pub.dartlang.org/thing.js:1');
+
+ expect(trace.frames[0].uri,
+ equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
+ expect(trace.frames[0].line, equals(42));
+ expect(trace.frames[0].column, equals(2));
+ expect(trace.frames[1].uri,
+ equals(Uri.parse("http://pub.dartlang.org/stuff.js")));
+ expect(trace.frames[2].uri,
+ equals(Uri.parse("http://pub.dartlang.org/thing.js")));
+ });
+
+ test('parses a package:stack_trace stack trace correctly', () {
+ var trace = new Trace.parse(
+ 'http://dartlang.org/foo/bar.dart 10:11 Foo.<fn>.bar\n'
+ 'http://dartlang.org/foo/baz.dart Foo.<fn>.bar');
+
+ expect(trace.frames[0].uri,
+ equals(Uri.parse("http://dartlang.org/foo/bar.dart")));
+ expect(trace.frames[1].uri,
+ equals(Uri.parse("http://dartlang.org/foo/baz.dart")));
+ });
+
+ test('parses a package:stack_trace stack chain correctly', () {
+ var trace = new Trace.parse(
+ 'http://dartlang.org/foo/bar.dart 10:11 Foo.<fn>.bar\n'
+ 'http://dartlang.org/foo/baz.dart Foo.<fn>.bar\n'
+ '===== asynchronous gap ===========================\n'
+ 'http://dartlang.org/foo/bang.dart 10:11 Foo.<fn>.bar\n'
+ 'http://dartlang.org/foo/quux.dart Foo.<fn>.bar');
+
+ expect(trace.frames[0].uri,
+ equals(Uri.parse("http://dartlang.org/foo/bar.dart")));
+ expect(trace.frames[1].uri,
+ equals(Uri.parse("http://dartlang.org/foo/baz.dart")));
+ expect(trace.frames[2].uri,
+ equals(Uri.parse("http://dartlang.org/foo/bang.dart")));
+ expect(trace.frames[3].uri,
+ equals(Uri.parse("http://dartlang.org/foo/quux.dart")));
+ });
+
+ test('parses a real package:stack_trace stack trace correctly', () {
+ var traceString = new Trace.current().toString();
+ expect(new Trace.parse(traceString).toString(), equals(traceString));
+ });
+
+ test('parses an empty string correctly', () {
+ var trace = new Trace.parse('');
+ expect(trace.frames, isEmpty);
+ expect(trace.toString(), equals(''));
+ });
+ });
+
+ test('.toString() nicely formats the stack trace', () {
+ var trace = new Trace.parse('''
+#0 Foo._bar (foo/bar.dart:42:21)
+#1 zip.<anonymous closure>.zap (dart:async/future.dart:0:2)
+#2 zip.<anonymous closure>.zap (http://pub.dartlang.org/thing.dart:1:100)
+''');
+
+ expect(trace.toString(), equals('''
+${path.join('foo', 'bar.dart')} 42:21 Foo._bar
+dart:async/future.dart 0:2 zip.<fn>.zap
+http://pub.dartlang.org/thing.dart 1:100 zip.<fn>.zap
+'''));
+ });
+
+ test('.vmTrace returns a native-style trace', () {
+ var uri = path.toUri(path.absolute('foo'));
+ var trace = new Trace([
+ new Frame(uri, 10, 20, 'Foo.<fn>'),
+ new Frame(Uri.parse('http://dartlang.org/foo.dart'), null, null, 'bar'),
+ new Frame(Uri.parse('dart:async'), 15, null, 'baz'),
+ ]);
+
+ expect(trace.vmTrace.toString(), equals(
+ '#1 Foo.<anonymous closure> ($uri:10:20)\n'
+ '#2 bar (http://dartlang.org/foo.dart:0:0)\n'
+ '#3 baz (dart:async:15:0)\n'));
+ });
+
+ group("folding", () {
+ test('.terse folds core frames together bottom-up', () {
+ var trace = new Trace.parse('''
+#1 top (dart:async/future.dart:0:2)
+#2 bottom (dart:core/uri.dart:1:100)
+#0 notCore (foo.dart:42:21)
+#3 top (dart:io:5:10)
+#4 bottom (dart:async-patch/future.dart:9:11)
+#5 alsoNotCore (bar.dart:10:20)
+''');
+
+ expect(trace.terse.toString(), equals('''
+dart:core bottom
+foo.dart 42:21 notCore
+dart:async bottom
+bar.dart 10:20 alsoNotCore
+'''));
+ });
+
+ test('.terse folds empty async frames', () {
+ var trace = new Trace.parse('''
+#0 top (dart:async/future.dart:0:2)
+#1 empty.<<anonymous closure>_async_body> (bar.dart)
+#2 bottom (dart:async-patch/future.dart:9:11)
+#3 notCore (foo.dart:42:21)
+''');
+
+ expect(trace.terse.toString(), equals('''
+dart:async bottom
+foo.dart 42:21 notCore
+'''));
+ });
+
+ test('.terse removes the bottom-most async frame', () {
+ var trace = new Trace.parse('''
+#0 notCore (foo.dart:42:21)
+#1 top (dart:async/future.dart:0:2)
+#2 bottom (dart:core/uri.dart:1:100)
+#3 top (dart:io:5:10)
+#4 bottom (dart:async-patch/future.dart:9:11)
+''');
+
+ expect(trace.terse.toString(), equals('''
+foo.dart 42:21 notCore
+'''));
+ });
+
+ test(".terse won't make a trace empty", () {
+ var trace = new Trace.parse('''
+#1 top (dart:async/future.dart:0:2)
+#2 bottom (dart:core/uri.dart:1:100)
+''');
+
+ expect(trace.terse.toString(), equals('''
+dart:core bottom
+'''));
+ });
+
+ test(".terse won't panic on an empty trace", () {
+ expect(new Trace.parse("").terse.toString(), equals(""));
+ });
+
+ test('.foldFrames folds frames together bottom-up', () {
+ var trace = new Trace.parse('''
+#0 notFoo (foo.dart:42:21)
+#1 fooTop (bar.dart:0:2)
+#2 fooBottom (foo.dart:1:100)
+#3 alsoNotFoo (bar.dart:10:20)
+#4 fooTop (dart:io/socket.dart:5:10)
+#5 fooBottom (dart:async-patch/future.dart:9:11)
+''');
+
+ var folded = trace.foldFrames((frame) => frame.member.startsWith('foo'));
+ expect(folded.toString(), equals('''
+foo.dart 42:21 notFoo
+foo.dart 1:100 fooBottom
+bar.dart 10:20 alsoNotFoo
+dart:async-patch/future.dart 9:11 fooBottom
+'''));
+ });
+
+ test('.foldFrames with terse: true folds core frames as well', () {
+ var trace = new Trace.parse('''
+#0 notFoo (foo.dart:42:21)
+#1 fooTop (bar.dart:0:2)
+#2 coreBottom (dart:async/future.dart:0:2)
+#3 alsoNotFoo (bar.dart:10:20)
+#4 fooTop (foo.dart:9:11)
+#5 coreBottom (dart:async-patch/future.dart:9:11)
+''');
+
+ var folded = trace.foldFrames((frame) => frame.member.startsWith('foo'),
+ terse: true);
+ expect(folded.toString(), equals('''
+foo.dart 42:21 notFoo
+dart:async coreBottom
+bar.dart 10:20 alsoNotFoo
+'''));
+ });
+
+ test('.foldFrames with terse: true shortens folded frames', () {
+ var trace = new Trace.parse('''
+#0 notFoo (foo.dart:42:21)
+#1 fooTop (bar.dart:0:2)
+#2 fooBottom (package:foo/bar.dart:0:2)
+#3 alsoNotFoo (bar.dart:10:20)
+#4 fooTop (foo.dart:9:11)
+#5 fooBottom (foo/bar.dart:9:11)
+''');
+
+ var folded = trace.foldFrames((frame) => frame.member.startsWith('foo'),
+ terse: true);
+ expect(folded.toString(), equals('''
+foo.dart 42:21 notFoo
+package:foo fooBottom
+bar.dart 10:20 alsoNotFoo
+foo fooBottom
+'''));
+ });
+
+ test('.foldFrames will never fold unparsed frames', () {
+ var trace = new Trace.parse(r'''
+.g"cs$#:b";a#>sw{*{ul$"$xqwr`p
+%+j-?uppx<([j@#nu{{>*+$%x-={`{
+!e($b{nj)zs?cgr%!;bmw.+$j+pfj~
+''');
+
+ expect(trace.foldFrames((frame) => true).toString(), equals(r'''
+.g"cs$#:b";a#>sw{*{ul$"$xqwr`p
+%+j-?uppx<([j@#nu{{>*+$%x-={`{
+!e($b{nj)zs?cgr%!;bmw.+$j+pfj~
+'''));
+ });
+ });
+}
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