| // 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:path/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); |
| expect(path.url.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()); |
| expect(path.url.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); |
| }); |
| }); |
| } |