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| 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | |
| 2 // for details. All rights reserved. Use of this source code is governed by a | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 | |
| 5 /// This file tests stack_trace's ability to parse live stack traces. It's a | |
| 6 /// dual of dartium_test.dart, since method names can differ somewhat from | |
| 7 /// platform to platform. No similar file exists for dart2js since the specific | |
| 8 /// method names there are implementation details. | |
| 9 | |
| 10 import 'package:path/path.dart' as path; | |
| 11 import 'package:stack_trace/stack_trace.dart'; | |
| 12 import 'package:unittest/unittest.dart'; | |
| 13 | |
| 14 String getStackTraceString() { | |
| 15 try { | |
| 16 throw ''; | |
| 17 } catch (_, stackTrace) { | |
| 18 return stackTrace.toString(); | |
| 19 } | |
| 20 } | |
| 21 | |
| 22 StackTrace getStackTraceObject() { | |
| 23 try { | |
| 24 throw ''; | |
| 25 } catch (_, stackTrace) { | |
| 26 return stackTrace; | |
| 27 } | |
| 28 } | |
| 29 | |
| 30 Frame getCaller([int level]) { | |
| 31 if (level == null) return new Frame.caller(); | |
| 32 return new Frame.caller(level); | |
| 33 } | |
| 34 | |
| 35 Frame nestedGetCaller(int level) => getCaller(level); | |
| 36 | |
| 37 Trace getCurrentTrace([int level]) => new Trace.current(level); | |
| 38 | |
| 39 Trace nestedGetCurrentTrace(int level) => getCurrentTrace(level); | |
| 40 | |
| 41 void main() { | |
| 42 group('Trace', () { | |
| 43 test('.parse parses a real stack trace correctly', () { | |
| 44 var string = getStackTraceString(); | |
| 45 var trace = new Trace.parse(string); | |
| 46 expect(path.url.basename(trace.frames.first.uri.path), | |
| 47 equals('vm_test.dart')); | |
| 48 expect(trace.frames.first.member, equals('getStackTraceString')); | |
| 49 }); | |
| 50 | |
| 51 test('converts from a native stack trace correctly', () { | |
| 52 var trace = new Trace.from(getStackTraceObject()); | |
| 53 expect(path.url.basename(trace.frames.first.uri.path), | |
| 54 equals('vm_test.dart')); | |
| 55 expect(trace.frames.first.member, equals('getStackTraceObject')); | |
| 56 }); | |
| 57 | |
| 58 group('.current()', () { | |
| 59 test('with no argument returns a trace starting at the current frame', | |
| 60 () { | |
| 61 var trace = new Trace.current(); | |
| 62 expect(trace.frames.first.member, equals('main.<fn>.<fn>.<fn>')); | |
| 63 }); | |
| 64 | |
| 65 test('at level 0 returns a trace starting at the current frame', () { | |
| 66 var trace = new Trace.current(0); | |
| 67 expect(trace.frames.first.member, equals('main.<fn>.<fn>.<fn>')); | |
| 68 }); | |
| 69 | |
| 70 test('at level 1 returns a trace starting at the parent frame', () { | |
| 71 var trace = getCurrentTrace(1); | |
| 72 expect(trace.frames.first.member, equals('main.<fn>.<fn>.<fn>')); | |
| 73 }); | |
| 74 | |
| 75 test('at level 2 returns a trace starting at the grandparent frame', () { | |
| 76 var trace = nestedGetCurrentTrace(2); | |
| 77 expect(trace.frames.first.member, equals('main.<fn>.<fn>.<fn>')); | |
| 78 }); | |
| 79 | |
| 80 test('throws an ArgumentError for negative levels', () { | |
| 81 expect(() => new Trace.current(-1), throwsArgumentError); | |
| 82 }); | |
| 83 }); | |
| 84 }); | |
| 85 | |
| 86 group('Frame.caller()', () { | |
| 87 test('with no argument returns the parent frame', () { | |
| 88 expect(getCaller().member, equals('main.<fn>.<fn>')); | |
| 89 }); | |
| 90 | |
| 91 test('at level 0 returns the current frame', () { | |
| 92 expect(getCaller(0).member, equals('getCaller')); | |
| 93 }); | |
| 94 | |
| 95 test('at level 1 returns the current frame', () { | |
| 96 expect(getCaller(1).member, equals('main.<fn>.<fn>')); | |
| 97 }); | |
| 98 | |
| 99 test('at level 2 returns the grandparent frame', () { | |
| 100 expect(nestedGetCaller(2).member, equals('main.<fn>.<fn>')); | |
| 101 }); | |
| 102 | |
| 103 test('throws an ArgumentError for negative levels', () { | |
| 104 expect(() => new Frame.caller(-1), throwsArgumentError); | |
| 105 }); | |
| 106 }); | |
| 107 } | |
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