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1 // Copyright (c) 2015, 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 import 'dart:async' show | |
6 Future, | |
7 Stream, | |
8 StreamController; | |
9 | |
10 import 'dart:io' show | |
11 Directory, | |
12 File, | |
13 Process, | |
14 ProcessResult; | |
15 | |
16 import 'dart:convert' show | |
17 UTF8; | |
18 | |
19 import 'package:expect/expect.dart' show | |
20 Expect; | |
21 | |
22 import '../fletchc/run.dart' show | |
23 export; | |
24 | |
25 import 'package:fletchc/program_info.dart' as program_info; | |
26 | |
27 import 'utils.dart' show | |
28 withTempDirectory; | |
29 | |
30 const String buildDirectory = | |
31 const String.fromEnvironment('test.dart.build-dir'); | |
32 | |
33 const String buildArch = | |
34 const String.fromEnvironment('test.dart.build-arch'); | |
35 | |
36 const String buildSystem = | |
37 const String.fromEnvironment('test.dart.build-system'); | |
38 | |
39 final String fletchVM = '$buildDirectory/fletch-vm'; | |
40 | |
41 typedef Future NoArgFuture(); | |
42 | |
43 Future<Map<String, NoArgFuture>> listTests( | |
44 [bool write_golden_files = false]) async { | |
45 var tests = <String, NoArgFuture>{ | |
46 'snapshot_stacktrace_tests/uncaught_exception': | |
47 () => runTest('uncaught_exception', write_golden_files), | |
48 'snapshot_stacktrace_tests/nsm_exception': | |
49 () => runTest('nsm_exception', write_golden_files), | |
50 'snapshot_stacktrace_tests/coroutine_exception': | |
51 () => runTest('coroutine_exception', write_golden_files), | |
52 }; | |
53 | |
54 | |
55 // Dummy use of [main] to make analyzer happy. | |
56 main; | |
57 | |
58 return tests; | |
59 } | |
60 | |
61 Future runTest(String testName, bool write_golden_files) { | |
62 return withTempDirectory((Directory temp) async { | |
63 String snapshotFilename = '${temp.absolute.path}/test.snapshot'; | |
64 | |
65 // Part 1: Generate snapshot. | |
66 await export( | |
67 testFilename(testName), snapshotFilename, binaryProgramInfo: true); | |
68 | |
69 // Part 2: Run VM. | |
70 ProcessResult result = await Process.run(fletchVM, [snapshotFilename]); | |
71 String expectationContent = | |
72 await new File(testExpectationFilename(testName)).readAsString(); | |
73 | |
74 // Part 3: Transform stdout via stack trace decoder. | |
75 var stdin = new Stream.fromIterable([UTF8.encode(result.stdout)]); | |
76 var stdout = new StreamController(); | |
77 Future<List> stdoutBytes = | |
78 stdout.stream.fold([], (buffer, data) => buffer..addAll(data)); | |
79 var arguments = [ | |
80 buildArch.toLowerCase() == 'x64' ? '64' : '32', | |
81 buildSystem.toLowerCase() == 'lk' ? 'float' : 'double', | |
82 '${snapshotFilename}.info.bin', | |
83 ]; | |
84 await program_info.decodeProgramMain(arguments, stdin, stdout); | |
85 | |
86 // Part 4: Build expectation string | |
87 String stdoutString = UTF8.decode(await stdoutBytes); | |
88 String actualOutput = | |
89 '<STDOUT>:\n${stdoutString}\n' | |
90 '<STDERR>:\n${result.stderr}\n' | |
91 '<EXITCODE>:${result.exitCode}'; | |
92 | |
93 // Part 5: Compare actual/expected or write to golden files. | |
94 if (write_golden_files) { | |
95 // Create golden file directory (if it doesn't exist). | |
96 var dir = new Directory(testDirectory('_generated')); | |
97 if (!await dir.exists()) await dir.create(recursive: true); | |
98 | |
99 // Copy test file. | |
100 var testFileContent = | |
101 await new File(await testFilename(testName)).readAsString(); | |
102 await new File(testFilename(testName, '_generated')) | |
103 .writeAsString(testFileContent); | |
104 | |
105 // Write actual expectation output. | |
106 await new File(testExpectationFilename(testName, '_generated')) | |
107 .writeAsString(actualOutput); | |
108 } else { | |
109 Expect.stringEquals(expectationContent, actualOutput); | |
110 } | |
111 }); | |
112 } | |
113 | |
114 String testFilename(String name, [String generated = '']) | |
115 => '${testDirectory(generated)}/${name}_test.dart'; | |
116 | |
117 String testExpectationFilename(String name, [String generated = '']) | |
118 => '${testDirectory(generated)}/${name}_expected.txt'; | |
119 | |
120 String testDirectory([String generated = '']) | |
121 => 'tests/snapshot_stacktrace_tests$generated'; | |
122 | |
123 main() async { | |
124 var tests = await listTests(true); | |
125 for (var name in tests.keys) { | |
126 await tests[name](); | |
127 } | |
128 } | |
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