Add support for V8 and Firefox stack traces in pkg/stack_trace.

R=rnystrom@google.com

Review URL: https://codereview.chromium.org//17765004

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@24502 260f80e4-7a28-3924-810f-c04153c831b5
This commit is contained in:
nweiz@google.com
2013-06-27 00:28:28 +00:00
parent 5ec4d52def
commit a92a52a4ff
7 changed files with 538 additions and 148 deletions
+3 -3
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@@ -57,6 +57,7 @@ crypto/test/sha1_test: Fail # Issue 11407.
[ $runtime == vm ]
pathos/test/pathos_dartium_test: Fail, OK # Uses dart:html
pathos/test/pathos_dart2js_test: Fail, OK # Uses dart:html
stack_trace/test/dartium_test: Fail, OK # Dartium-specific traces
intl/test/find_default_locale_browser_test: Skip
intl/test/date_time_format_http_request_test: Skip
@@ -106,6 +107,7 @@ crypto/test/sha1_test: Fail # V8 bug: https://code.google.com/p/v8/issues/detail
[ $compiler == dart2js && $browser ]
pathos/test/pathos_dartium_test: Fail # Issue 6490
stack_trace/test/dartium_test: Fail, OK # Dartium-specific traces
crypto/test/sha256_test: Slow, Pass
crypto/test/sha1_test: Slow, Pass
@@ -133,6 +135,7 @@ oauth2/test/client_test: Fail, OK # Uses dart:io.
oauth2/test/credentials_test: Fail, OK # Uses dart:io.
oauth2/test/handle_access_token_response_test: Fail, OK # Uses dart:io.
pathos/test/pathos_io_test: Fail, OK # Uses dart:io.
stack_trace/test/vm_test: Fail, OK # VM-specific method names.
scheduled_test/test/descriptor/async_test: Fail # http://dartbug.com/8440
scheduled_test/test/descriptor/directory_test: Fail # http://dartbug.com/8440
@@ -157,9 +160,6 @@ scheduled_test/test/scheduled_test/timeout_test: Fail # http://dartbug.com/8440
scheduled_test/test/scheduled_test/wrap_async_test: Fail # http://dartbug.com/8440
scheduled_test/test/scheduled_test/wrap_future_test: Fail # http://dartbug.com/8440
stack_trace/test/frame_test: Fail # http://dartbug.com/6943
stack_trace/test/trace_test: Fail # http://dartbug.com/6943
[ $runtime == safari]
# Bug in JSC: the test only passes when being debugged.
+61 -7
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@@ -9,9 +9,23 @@ import 'package:pathos/path.dart' as path;
import 'trace.dart';
final _nativeFrameRegExp = new RegExp(
// #1 Foo._bar (file:///home/nweiz/code/stuff.dart:42:21)
final _vmFrame = new RegExp(
r'^#\d+\s+([^\s].*) \((.+):(\d+):(\d+)\)$');
// at VW.call$0 (http://pub.dartlang.org/stuff.dart.js:560:28)
// at http://pub.dartlang.org/stuff.dart.js:560:28
final _v8Frame = new RegExp(
r'^\s*at (?:([^\s].*) \((.+):(\d+):(\d+)\)|(.+):(\d+):(\d+))$');
// .VW.call$0@http://pub.dartlang.org/stuff.dart.js:560
// .VW.call$0("arg")@http://pub.dartlang.org/stuff.dart.js:560
// .VW.call$0/name<@http://pub.dartlang.org/stuff.dart.js:560
final _firefoxFrame = new RegExp(
r'^([^@(/]*)(?:\(.*\))?(/[^<]*<)?(?:\(.*\))?@(.*):(\d+)$');
final _initialDot = new RegExp(r"^\.");
/// A single stack frame. Each frame points to a precise location in Dart code.
class Frame {
/// The URI of the file in which the code is located.
@@ -76,13 +90,11 @@ class Frame {
return new Trace.current(level + 1).frames.first;
}
/// Parses a string representation of a stack frame.
///
/// [frame] should be formatted in the same way as a native stack trace frame.
factory Frame.parse(String frame) {
var match = _nativeFrameRegExp.firstMatch(frame);
/// Parses a string representation of a Dart VM stack frame.
factory Frame.parseVM(String frame) {
var match = _vmFrame.firstMatch(frame);
if (match == null) {
throw new FormatException("Couldn't parse stack trace line '$frame'.");
throw new FormatException("Couldn't parse VM stack trace line '$frame'.");
}
var uri = Uri.parse(match[2]);
@@ -90,6 +102,48 @@ class Frame {
return new Frame(uri, int.parse(match[3]), int.parse(match[4]), member);
}
/// Parses a string representation of a Chrome/V8 stack frame.
factory Frame.parseV8(String frame) {
var match = _v8Frame.firstMatch(frame);
if (match == null) {
throw new FormatException("Couldn't parse V8 stack trace line '$frame'.");
}
// V8 stack frames can be in two forms.
if (match[2] != null) {
// The first form looks like " at FUNCTION (URI:LINE:COL)"
var uri = Uri.parse(match[2]);
var member = match[1].replaceAll("<anonymous>", "<fn>");
return new Frame(uri, int.parse(match[3]), int.parse(match[4]), member);
} else {
// The second form looks like " at URI:LINE:COL", and is used for
// anonymous functions.
var uri = Uri.parse(match[5]);
return new Frame(uri, int.parse(match[6]), int.parse(match[7]), "<fn>");
}
}
/// Parses a string representation of a Firefox stack frame.
factory Frame.parseFirefox(String frame) {
var match = _firefoxFrame.firstMatch(frame);
if (match == null) {
throw new FormatException(
"Couldn't parse Firefox stack trace line '$frame'.");
}
var uri = Uri.parse(match[3]);
var member = match[1];
if (member == "") {
member = "<fn>";
} else if (match[2] != null) {
member = "$member.<fn>";
}
// Some Firefox members have initial dots. We remove them for consistency
// with other platforms.
member = member.replaceFirst(_initialDot, '');
return new Frame(uri, int.parse(match[4]), null, member);
}
Frame(this.uri, this.line, this.column, this.member);
String toString() => '$location in $member';
+30 -3
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@@ -12,6 +12,13 @@ import 'lazy_trace.dart';
final _terseRegExp = new RegExp(r"(-patch)?(/.*)?$");
/// A RegExp to match Firefox's stack traces.
///
/// Firefox's trace frames start with the name of the function in which the
/// error occurred, possibly including its parameters inside `()`. For example,
/// `.VW.call$0("arg")@http://pub.dartlang.org/stuff.dart.js:560`.
final _firefoxTrace = new RegExp(r"^([.0-9A-Za-z_$/<]*|\(.*\))*@");
/// A stack trace, comprised of a list of stack frames.
class Trace implements StackTrace {
/// The stack frames that comprise this stack trace.
@@ -57,9 +64,29 @@ class Trace implements StackTrace {
/// Parses a string representation of a stack trace.
///
/// [trace] should be formatted in the same way as native stack traces.
Trace.parse(String trace)
: this(trace.trim().split("\n").map((line) => new Frame.parse(line)));
/// [trace] should be formatted in the same way as a Dart VM or browser stack
/// trace.
factory Trace.parse(String trace) {
if (trace.startsWith("Error\n")) return new Trace.parseV8(trace);
if (trace.contains(_firefoxTrace)) return new Trace.parseFirefox(trace);
// Default to parsing the stack trace as a VM trace. This is also hit on IE
// and Safari, where the stack trace is just an empty string (issue 11257).
return new Trace.parseVM(trace);
}
/// Parses a string representation of a Dart VM stack trace.
Trace.parseVM(String trace)
: this(trace.trim().split("\n").map((line) => new Frame.parseVM(line)));
/// Parses a string representation of a Chrome/V8 stack trace.
Trace.parseV8(String trace)
: this(trace.split("\n").skip(1).map((line) => new Frame.parseV8(line)));
/// Parses a string representation of a Firefox stack trace.
Trace.parseFirefox(String trace)
: this(trace.trim().split("\n")
.map((line) => new Frame.parseFirefox(line)));
/// Returns a new [Trace] comprised of [frames].
Trace(Iterable<Frame> frames)
+109
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@@ -0,0 +1,109 @@
// 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.
/// This file tests stack_trace's ability to parse live stack traces. It's a
/// dual of vm_test.dart, since method names can differ somewhat from platform
/// to platform. No similar file exists for dart2js since the specific method
/// names there are implementation details.
import 'package:pathos/path.dart' as path;
import 'package:stack_trace/stack_trace.dart';
import 'package:unittest/unittest.dart';
String getStackTraceString() {
try {
throw '';
} catch (_, stackTrace) {
return stackTrace.toString();
}
}
StackTrace getStackTraceObject() {
try {
throw '';
} catch (_, stackTrace) {
return stackTrace;
}
}
Frame getCaller([int level]) {
if (level == null) return new Frame.caller();
return new Frame.caller(level);
}
Frame nestedGetCaller(int level) => getCaller(level);
Trace getCurrentTrace([int level]) => new Trace.current(level);
Trace nestedGetCurrentTrace(int level) => getCurrentTrace(level);
void main() {
group('Trace', () {
test('.parse parses a real stack trace correctly', () {
var string = getStackTraceString();
var trace = new Trace.parse(string);
var builder = new path.Builder(style: path.Style.url);
expect(builder.basename(trace.frames.first.uri.path),
equals('dartium_test.dart'));
expect(trace.frames.first.member, equals('getStackTraceString'));
});
test('converts from a native stack trace correctly', () {
var trace = new Trace.from(getStackTraceObject());
var builder = new path.Builder(style: path.Style.url);
expect(builder.basename(trace.frames.first.uri.path),
equals('dartium_test.dart'));
expect(trace.frames.first.member, equals('getStackTraceObject'));
});
group('.current()', () {
test('with no argument returns a trace starting at the current frame',
() {
var trace = new Trace.current();
expect(trace.frames.first.member, equals('main.main.<fn>.<fn>.<fn>'));
});
test('at level 0 returns a trace starting at the current frame', () {
var trace = new Trace.current(0);
expect(trace.frames.first.member, equals('main.main.<fn>.<fn>.<fn>'));
});
test('at level 1 returns a trace starting at the parent frame', () {
var trace = getCurrentTrace(1);
expect(trace.frames.first.member, equals('main.main.<fn>.<fn>.<fn>'));
});
test('at level 2 returns a trace starting at the grandparent frame', () {
var trace = nestedGetCurrentTrace(2);
expect(trace.frames.first.member, equals('main.main.<fn>.<fn>.<fn>'));
});
test('throws an ArgumentError for negative levels', () {
expect(() => new Trace.current(-1), throwsArgumentError);
});
});
});
group('Frame.caller()', () {
test('with no argument returns the parent frame', () {
expect(getCaller().member, equals('main.main.<fn>.<fn>'));
});
test('at level 0 returns the current frame', () {
expect(getCaller(0).member, equals('getCaller'));
});
test('at level 1 returns the current frame', () {
expect(getCaller(1).member, equals('main.main.<fn>.<fn>'));
});
test('at level 2 returns the grandparent frame', () {
expect(nestedGetCaller(2).member, equals('main.main.<fn>.<fn>'));
});
test('throws an ArgumentError for negative levels', () {
expect(() => new Frame.caller(-1), throwsArgumentError);
});
});
}
+166 -85
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@@ -4,73 +4,176 @@
library frame_test;
import 'dart:io';
import 'package:pathos/path.dart' as path;
import 'package:stack_trace/stack_trace.dart';
import 'package:unittest/unittest.dart';
String getStackFrame() {
try {
throw '';
} catch (_, stackTrace) {
return stackTrace.toString().split("\n").first;
}
}
Frame getCaller([int level]) {
if (level == null) return new Frame.caller();
return new Frame.caller(level);
}
Frame nestedGetCaller(int level) => getCaller(level);
void main() {
test('parses a stack frame correctly', () {
var frame = new Frame.parse("#1 Foo._bar "
"(file:///home/nweiz/code/stuff.dart:42:21)");
expect(frame.uri, equals(Uri.parse("file:///home/nweiz/code/stuff.dart")));
expect(frame.line, equals(42));
expect(frame.column, equals(21));
expect(frame.member, equals('Foo._bar'));
group('.parseVM', () {
test('parses a stack frame correctly', () {
var frame = new Frame.parseVM("#1 Foo._bar "
"(file:///home/nweiz/code/stuff.dart:42:21)");
expect(frame.uri,
equals(Uri.parse("file:///home/nweiz/code/stuff.dart")));
expect(frame.line, equals(42));
expect(frame.column, equals(21));
expect(frame.member, equals('Foo._bar'));
});
test('converts "<anonymous closure>" to "<fn>"', () {
String parsedMember(String member) =>
new Frame.parseVM('#0 $member (foo:0:0)').member;
expect(parsedMember('Foo.<anonymous closure>'), equals('Foo.<fn>'));
expect(parsedMember('<anonymous closure>.<anonymous closure>.bar'),
equals('<fn>.<fn>.bar'));
});
test('throws a FormatException for malformed frames', () {
expect(() => new Frame.parseVM(''), throwsFormatException);
expect(() => new Frame.parseVM('#1'), throwsFormatException);
expect(() => new Frame.parseVM('#1 Foo'), throwsFormatException);
expect(() => new Frame.parseVM('#1 Foo (dart:async/future.dart)'),
throwsFormatException);
expect(() => new Frame.parseVM('#1 Foo (dart:async/future.dart:10)'),
throwsFormatException);
expect(() => new Frame.parseVM('#1 (dart:async/future.dart:10:15)'),
throwsFormatException);
expect(() => new Frame.parseVM('Foo (dart:async/future.dart:10:15)'),
throwsFormatException);
});
});
test('parses a real stack frame correctly', () {
var frame = new Frame.parse(getStackFrame());
// TODO(nweiz): use URL-style paths when such a thing exists.
var builder = new path.Builder(style: path.Style.posix);
expect(builder.basename(frame.uri.path), equals('frame_test.dart'));
expect(frame.line, equals(15));
expect(frame.column, equals(5));
expect(frame.member, equals('getStackFrame'));
group('.parseV8', () {
test('parses a stack frame correctly', () {
var frame = new Frame.parseV8(" at VW.call\$0 "
"(http://pub.dartlang.org/stuff.dart.js:560:28)");
expect(frame.uri,
equals(Uri.parse("http://pub.dartlang.org/stuff.dart.js")));
expect(frame.line, equals(560));
expect(frame.column, equals(28));
expect(frame.member, equals('VW.call\$0'));
});
test('parses an anonymous stack frame correctly', () {
var frame = new Frame.parseV8(
" at http://pub.dartlang.org/stuff.dart.js:560:28");
expect(frame.uri,
equals(Uri.parse("http://pub.dartlang.org/stuff.dart.js")));
expect(frame.line, equals(560));
expect(frame.column, equals(28));
expect(frame.member, equals('<fn>'));
});
test('converts "<anonymous>" to "<fn>"', () {
String parsedMember(String member) =>
new Frame.parseV8(' at $member (foo:0:0)').member;
expect(parsedMember('Foo.<anonymous>'), equals('Foo.<fn>'));
expect(parsedMember('<anonymous>.<anonymous>.bar'),
equals('<fn>.<fn>.bar'));
});
test('throws a FormatException for malformed frames', () {
expect(() => new Frame.parseV8(''), throwsFormatException);
expect(() => new Frame.parseV8(' at'), throwsFormatException);
expect(() => new Frame.parseV8(' at Foo'), throwsFormatException);
expect(() => new Frame.parseV8(' at Foo (dart:async/future.dart)'),
throwsFormatException);
expect(() => new Frame.parseV8(' at Foo (dart:async/future.dart:10)'),
throwsFormatException);
expect(() => new Frame.parseV8(' at (dart:async/future.dart:10:15)'),
throwsFormatException);
expect(() => new Frame.parseV8('Foo (dart:async/future.dart:10:15)'),
throwsFormatException);
expect(() => new Frame.parseV8(' at dart:async/future.dart'),
throwsFormatException);
expect(() => new Frame.parseV8(' at dart:async/future.dart:10'),
throwsFormatException);
expect(() => new Frame.parseV8('dart:async/future.dart:10:15'),
throwsFormatException);
});
});
test('converts "<anonymous closure>" to "<fn>"', () {
String parsedMember(String member) =>
new Frame.parse('#0 $member (foo:0:0)').member;
group('.parseFirefox', () {
test('parses a simple stack frame correctly', () {
var frame = new Frame.parseFirefox(
".VW.call\$0@http://pub.dartlang.org/stuff.dart.js:560");
expect(frame.uri,
equals(Uri.parse("http://pub.dartlang.org/stuff.dart.js")));
expect(frame.line, equals(560));
expect(frame.column, isNull);
expect(frame.member, equals('VW.call\$0'));
});
expect(parsedMember('Foo.<anonymous closure>'), equals('Foo.<fn>'));
expect(parsedMember('<anonymous closure>.<anonymous closure>.bar'),
equals('<fn>.<fn>.bar'));
});
test('parses a simple anonymous stack frame correctly', () {
var frame = new Frame.parseFirefox(
"@http://pub.dartlang.org/stuff.dart.js:560");
expect(frame.uri,
equals(Uri.parse("http://pub.dartlang.org/stuff.dart.js")));
expect(frame.line, equals(560));
expect(frame.column, isNull);
expect(frame.member, equals("<fn>"));
});
test('throws a FormatException for malformed frames', () {
expect(() => new Frame.parse(''), throwsFormatException);
expect(() => new Frame.parse('#1'), throwsFormatException);
expect(() => new Frame.parse('#1 Foo'), throwsFormatException);
expect(() => new Frame.parse('#1 Foo (dart:async/future.dart)'),
throwsFormatException);
expect(() => new Frame.parse('#1 Foo (dart:async/future.dart:10)'),
throwsFormatException);
expect(() => new Frame.parse('#1 (dart:async/future.dart:10:15)'),
throwsFormatException);
expect(() => new Frame.parse('Foo (dart:async/future.dart:10:15)'),
throwsFormatException);
test('parses a nested anonymous stack frame correctly', () {
var frame = new Frame.parseFirefox(
".foo/<@http://pub.dartlang.org/stuff.dart.js:560");
expect(frame.uri,
equals(Uri.parse("http://pub.dartlang.org/stuff.dart.js")));
expect(frame.line, equals(560));
expect(frame.column, isNull);
expect(frame.member, equals("foo.<fn>"));
});
test('parses a named nested anonymous stack frame correctly', () {
var frame = new Frame.parseFirefox(
".foo/.name<@http://pub.dartlang.org/stuff.dart.js:560");
expect(frame.uri,
equals(Uri.parse("http://pub.dartlang.org/stuff.dart.js")));
expect(frame.line, equals(560));
expect(frame.column, isNull);
expect(frame.member, equals("foo.<fn>"));
});
test('parses a stack frame with parameters correctly', () {
var frame = new Frame.parseFirefox(
'.foo(12, "@)()/<")@http://pub.dartlang.org/stuff.dart.js:560');
expect(frame.uri,
equals(Uri.parse("http://pub.dartlang.org/stuff.dart.js")));
expect(frame.line, equals(560));
expect(frame.column, isNull);
expect(frame.member, equals("foo"));
});
test('parses a nested anonymous stack frame with parameters correctly', () {
var frame = new Frame.parseFirefox(
'.foo(12, "@)()/<")/.fn<@'
'http://pub.dartlang.org/stuff.dart.js:560');
expect(frame.uri,
equals(Uri.parse("http://pub.dartlang.org/stuff.dart.js")));
expect(frame.line, equals(560));
expect(frame.column, isNull);
expect(frame.member, equals("foo.<fn>"));
});
test('throws a FormatException for malformed frames', () {
expect(() => new Frame.parseFirefox(''), throwsFormatException);
expect(() => new Frame.parseFirefox('.foo'), throwsFormatException);
expect(() => new Frame.parseFirefox('.foo@dart:async/future.dart'),
throwsFormatException);
expect(() => new Frame.parseFirefox('.foo/@dart:async/future.dart:10'),
throwsFormatException);
expect(() => new Frame.parseFirefox('.foo(@dart:async/future.dart:10'),
throwsFormatException);
expect(() => new Frame.parseFirefox('@dart:async/future.dart'),
throwsFormatException);
});
});
test('only considers dart URIs to be core', () {
bool isCore(String library) =>
new Frame.parse('#0 Foo ($library:0:0)').isCore;
new Frame.parseVM('#0 Foo ($library:0:0)').isCore;
expect(isCore('dart:core'), isTrue);
expect(isCore('dart:async'), isTrue);
@@ -82,39 +185,17 @@ void main() {
expect(isCore('bart:core/uri.dart'), isFalse);
});
group('.caller()', () {
test('with no argument returns the parent frame', () {
expect(getCaller().member, equals('main.<fn>.<fn>'));
});
test('at level 0 returns the current frame', () {
expect(getCaller(0).member, equals('getCaller'));
});
test('at level 1 returns the current frame', () {
expect(getCaller(1).member, equals('main.<fn>.<fn>'));
});
test('at level 2 returns the grandparent frame', () {
expect(nestedGetCaller(2).member, equals('main.<fn>.<fn>'));
});
test('throws an ArgumentError for negative levels', () {
expect(() => new Frame.caller(-1), throwsArgumentError);
});
});
group('.library', () {
test('returns the URI string for non-file URIs', () {
expect(new Frame.parse('#0 Foo (dart:async/future.dart:0:0)').library,
expect(new Frame.parseVM('#0 Foo (dart:async/future.dart:0:0)').library,
equals('dart:async/future.dart'));
expect(new Frame.parse('#0 Foo '
expect(new Frame.parseVM('#0 Foo '
'(http://dartlang.org/stuff/thing.dart:0:0)').library,
equals('http://dartlang.org/stuff/thing.dart'));
});
test('returns the relative path for file URIs', () {
expect(new Frame.parse('#0 Foo (foo/bar.dart:0:0)').library,
expect(new Frame.parseVM('#0 Foo (foo/bar.dart:0:0)').library,
equals('foo/bar.dart'));
});
});
@@ -122,27 +203,27 @@ void main() {
group('.location', () {
test('returns the library and line/column numbers for non-core '
'libraries', () {
expect(new Frame.parse('#0 Foo '
expect(new Frame.parseVM('#0 Foo '
'(http://dartlang.org/thing.dart:5:10)').location,
equals('http://dartlang.org/thing.dart 5:10'));
expect(new Frame.parse('#0 Foo (foo/bar.dart:1:2)').location,
expect(new Frame.parseVM('#0 Foo (foo/bar.dart:1:2)').location,
equals('foo/bar.dart 1:2'));
});
});
group('.package', () {
test('returns null for non-package URIs', () {
expect(new Frame.parse('#0 Foo (dart:async/future.dart:0:0)').package,
expect(new Frame.parseVM('#0 Foo (dart:async/future.dart:0:0)').package,
isNull);
expect(new Frame.parse('#0 Foo '
expect(new Frame.parseVM('#0 Foo '
'(http://dartlang.org/stuff/thing.dart:0:0)').package,
isNull);
});
test('returns the package name for package: URIs', () {
expect(new Frame.parse('#0 Foo (package:foo/foo.dart:0:0)').package,
expect(new Frame.parseVM('#0 Foo (package:foo/foo.dart:0:0)').package,
equals('foo'));
expect(new Frame.parse('#0 Foo (package:foo/zap/bar.dart:0:0)').package,
expect(new Frame.parseVM('#0 Foo (package:foo/zap/bar.dart:0:0)').package,
equals('foo'));
});
});
@@ -150,13 +231,13 @@ void main() {
group('.toString()', () {
test('returns the library and line/column numbers for non-core '
'libraries', () {
expect(new Frame.parse('#0 Foo (http://dartlang.org/thing.dart:5:10)')
expect(new Frame.parseVM('#0 Foo (http://dartlang.org/thing.dart:5:10)')
.toString(),
equals('http://dartlang.org/thing.dart 5:10 in Foo'));
});
test('converts "<anonymous closure>" to "<fn>"', () {
expect(new Frame.parse('#0 Foo.<anonymous closure> '
expect(new Frame.parseVM('#0 Foo.<anonymous closure> '
'(dart:core/uri.dart:5:10)').toString(),
equals('dart:core/uri.dart 5:10 in Foo.<fn>'));
});
+60 -50
View File
@@ -4,8 +4,6 @@
library trace_test;
import 'dart:io';
import 'package:pathos/path.dart' as path;
import 'package:stack_trace/stack_trace.dart';
import 'package:unittest/unittest.dart';
@@ -31,61 +29,73 @@ Trace getCurrentTrace([int level]) => new Trace.current(level);
Trace nestedGetCurrentTrace(int level) => getCurrentTrace(level);
void main() {
test('parses a stack trace correctly', () {
var trace = new Trace.parse('''
#0 Foo._bar (file:///home/nweiz/code/stuff.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)
''');
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 real stack trace correctly', () {
var trace = new Trace.parse(getStackTraceString());
// TODO(nweiz): use URL-style paths when such a thing exists.
var builder = new path.Builder(style: path.Style.posix);
expect(builder.basename(trace.frames.first.uri.path),
equals('trace_test.dart'));
expect(trace.frames.first.member, equals('getStackTraceString'));
});
test('converts from a native stack trace correctly', () {
var trace = new Trace.from(getStackTraceObject());
// TODO(nweiz): use URL-style paths when such a thing exists.
var builder = new path.Builder(style: path.Style.posix);
expect(builder.basename(trace.frames.first.uri.path),
equals('trace_test.dart'));
expect(trace.frames.first.member, equals('getStackTraceObject'));
});
group('.current()', () {
test('with no argument returns a trace starting at the current frame', () {
var trace = new Trace.current();
expect(trace.frames.first.member, equals('main.<fn>.<fn>'));
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('at level 0 returns a trace starting at the current frame', () {
var trace = new Trace.current(0);
expect(trace.frames.first.member, equals('main.<fn>.<fn>'));
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")));
});
test('at level 1 returns a trace starting at the parent frame', () {
var trace = getCurrentTrace(1);
expect(trace.frames.first.member, equals('main.<fn>.<fn>'));
});
test('parses a Firefox 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');
test('at level 2 returns a trace starting at the grandparent frame', () {
var trace = nestedGetCurrentTrace(2);
expect(trace.frames.first.member, equals('main.<fn>.<fn>'));
});
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('throws an ArgumentError for negative levels', () {
expect(() => new Trace.current(-1), throwsArgumentError);
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")));
});
});
+109
View File
@@ -0,0 +1,109 @@
// 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.
/// This file tests stack_trace's ability to parse live stack traces. It's a
/// dual of dartium_test.dart, since method names can differ somewhat from
/// platform to platform. No similar file exists for dart2js since the specific
/// method names there are implementation details.
import 'package:pathos/path.dart' as path;
import 'package:stack_trace/stack_trace.dart';
import 'package:unittest/unittest.dart';
String getStackTraceString() {
try {
throw '';
} catch (_, stackTrace) {
return stackTrace.toString();
}
}
StackTrace getStackTraceObject() {
try {
throw '';
} catch (_, stackTrace) {
return stackTrace;
}
}
Frame getCaller([int level]) {
if (level == null) return new Frame.caller();
return new Frame.caller(level);
}
Frame nestedGetCaller(int level) => getCaller(level);
Trace getCurrentTrace([int level]) => new Trace.current(level);
Trace nestedGetCurrentTrace(int level) => getCurrentTrace(level);
void main() {
group('Trace', () {
test('.parse parses a real stack trace correctly', () {
var string = getStackTraceString();
var trace = new Trace.parse(string);
var builder = new path.Builder(style: path.Style.url);
expect(builder.basename(trace.frames.first.uri.path),
equals('vm_test.dart'));
expect(trace.frames.first.member, equals('getStackTraceString'));
});
test('converts from a native stack trace correctly', () {
var trace = new Trace.from(getStackTraceObject());
var builder = new path.Builder(style: path.Style.url);
expect(builder.basename(trace.frames.first.uri.path),
equals('vm_test.dart'));
expect(trace.frames.first.member, equals('getStackTraceObject'));
});
group('.current()', () {
test('with no argument returns a trace starting at the current frame',
() {
var trace = new Trace.current();
expect(trace.frames.first.member, equals('main.<fn>.<fn>.<fn>'));
});
test('at level 0 returns a trace starting at the current frame', () {
var trace = new Trace.current(0);
expect(trace.frames.first.member, equals('main.<fn>.<fn>.<fn>'));
});
test('at level 1 returns a trace starting at the parent frame', () {
var trace = getCurrentTrace(1);
expect(trace.frames.first.member, equals('main.<fn>.<fn>.<fn>'));
});
test('at level 2 returns a trace starting at the grandparent frame', () {
var trace = nestedGetCurrentTrace(2);
expect(trace.frames.first.member, equals('main.<fn>.<fn>.<fn>'));
});
test('throws an ArgumentError for negative levels', () {
expect(() => new Trace.current(-1), throwsArgumentError);
});
});
});
group('Frame.caller()', () {
test('with no argument returns the parent frame', () {
expect(getCaller().member, equals('main.<fn>.<fn>'));
});
test('at level 0 returns the current frame', () {
expect(getCaller(0).member, equals('getCaller'));
});
test('at level 1 returns the current frame', () {
expect(getCaller(1).member, equals('main.<fn>.<fn>'));
});
test('at level 2 returns the grandparent frame', () {
expect(nestedGetCaller(2).member, equals('main.<fn>.<fn>'));
});
test('throws an ArgumentError for negative levels', () {
expect(() => new Frame.caller(-1), throwsArgumentError);
});
});
}