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Issue 10911318: Revert "Make unittest follow the new package layout." (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 8 years, 3 months ago
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1 // Copyright (c) 2011, 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 is sourced by unitest.dart. */
6
7 /**
8 * Hooks to configure the unittest library for different platforms. This class
9 * implements the API in a platform-independent way. Tests that want to take
10 * advantage of the platform can create a subclass and override methods from
11 * this class.
12 */
13 class Configuration {
14 TestCase currentTestCase = null;
15
16 /**
17 * Subclasses can override this with something useful for diagnostics.
18 * Particularly useful in cases where we have parent/child configurations
19 * such as layout tests.
20 */
21 get name => 'Configuration';
22 /**
23 * If true, then tests are started automatically (otherwise [runTests]
24 * must be called explicitly after the tests are set up.
25 */
26 get autoStart => true;
27
28 /**
29 * Called as soon as the unittest framework becomes initialized. This is done
30 * even before tests are added to the test framework. It might be used to
31 * determine/debug errors that occur before the test harness starts executing.
32 */
33 void onInit() {}
34
35 /**
36 * Called as soon as the unittest framework starts running. Used commonly to
37 * tell the vm or browser that tests are still running and the process should
38 * wait until they are done.
39 */
40 void onStart() {
41 _postMessage('unittest-suite-wait-for-done');
42 }
43
44 /**
45 * Called when each test starts. Useful to show intermediate progress on
46 * a test suite.
47 */
48 void onTestStart(TestCase testCase) {
49 currentTestCase = testCase;
50 }
51
52 /**
53 * Called when each test is completed. Useful to show intermediate progress on
54 * a test suite.
55 */
56 void onTestResult(TestCase testCase) {
57 currentTestCase = null;
58 }
59
60 /**
61 * Can be called by tests to log status. Tests should use this
62 * instead of print. Subclasses should not override this; they
63 * should instead override logMessage which is passed the test case.
64 */
65 void logMessage(String message) {
66 if (currentTestCase == null || _currentTest >= _tests.length ||
67 currentTestCase.id != _tests[_currentTest].id) {
68 // Before or after tests run, or with a mismatch between what the
69 // config and the test harness think is the current test. In this
70 // case we pass null for the test case reference and let the config
71 // decide what to do with this.
72 logTestCaseMessage(null, message);
73 } else {
74 logTestCaseMessage(currentTestCase, message);
75 }
76 }
77
78 /**
79 * Handles the logging of messages by a test case. The default in
80 * this base configuration is to call print();
81 */
82 void logTestCaseMessage(TestCase testCase, String message) {
83 print(message);
84 }
85
86 /**
87 * Called with the result of all test cases. The default implementation prints
88 * the result summary using the built-in [print] command. Browser tests
89 * commonly override this to reformat the output.
90 *
91 * When [uncaughtError] is not null, it contains an error that occured outside
92 * of tests (e.g. setting up the test).
93 */
94 void onDone(int passed, int failed, int errors, List<TestCase> results,
95 String uncaughtError) {
96 // Print each test's result.
97 for (final t in _tests) {
98 print('${t.result.toUpperCase()}: ${t.description}');
99
100 if (t.message != '') {
101 print(_indent(t.message));
102 }
103
104 if (t.stackTrace != null && t.stackTrace != '') {
105 print(_indent(t.stackTrace));
106 }
107 }
108
109 // Show the summary.
110 print('');
111
112 var success = false;
113 if (passed == 0 && failed == 0 && errors == 0) {
114 print('No tests found.');
115 // This is considered a failure too.
116 } else if (failed == 0 && errors == 0 && uncaughtError == null) {
117 print('All $passed tests passed.');
118 success = true;
119 } else {
120 if (uncaughtError != null) {
121 print('Top-level uncaught error: $uncaughtError');
122 }
123 print('$passed PASSED, $failed FAILED, $errors ERRORS');
124 }
125
126 if (success) {
127 _postMessage('unittest-suite-success');
128 } else {
129 throw new Exception('Some tests failed.');
130 }
131 }
132
133 String _indent(String str) {
134 // TODO(nweiz): Use this simpler code once issue 2980 is fixed.
135 // return str.replaceAll(const RegExp("^", multiLine: true), " ");
136
137 return Strings.join(str.split("\n").map((line) => " $line"), "\n");
138 }
139
140 /** Handle errors that happen outside the tests. */
141 // TODO(vsm): figure out how to expose the stack trace here
142 // Currently e.message works in dartium, but not in dartc.
143 handleExternalError(e, String message) =>
144 _reportTestError('$message\nCaught $e', '');
145
146 _postMessage(String message) {
147 // In dart2js browser tests, the JavaScript-based test controller
148 // intercepts calls to print and listens for "secret" messages.
149 print(message);
150 }
151 }
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