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| 1 // Copyright (c) 2017, 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 /// The possible outcomes from running a test. | |
| 6 class Expectation { | |
| 7 /// The test completed normally and did what it intended to do. | |
| 8 static final Expectation pass = new Expectation._('Pass'); | |
| 9 | |
| 10 /// The process aborted in a way that is not a potential runtime error coming | |
| 11 /// from the test itself. This is not considered a failure. It means an | |
| 12 /// error happened so fundamental that success/failure could not be | |
| 13 /// determined. Includes: | |
| 14 /// | |
| 15 /// * The Dart VM itself crashes, but not from an unhandled exception in user | |
| 16 /// code. | |
| 17 /// | |
| 18 /// * When running dart2js on top of the VM to compile some code, the VM | |
| 19 /// exits with a non-zero exit code or uncaught exception -- meaning an | |
| 20 /// internal exception in dart2js itself. | |
| 21 /// | |
| 22 /// * The browser process crashes. | |
| 23 static final Expectation crash = new Expectation._('Crash'); | |
| 24 | |
| 25 /// The test did not complete (either successfully or unsuccessfully) in the | |
| 26 /// amount of time that the test runner gave it. | |
| 27 static final Expectation timeout = new Expectation._('Timeout'); | |
| 28 | |
| 29 /// The test completed but did not produce the intended output. | |
| 30 /// | |
| 31 /// This status is rarely used directly. Instead, most of the expectations | |
| 32 /// below refine this into more specific reasons *why* it failed. | |
| 33 static final Expectation fail = new Expectation._('Fail'); | |
| 34 | |
| 35 /// The test compiled and began executing but then threw an uncaught | |
| 36 /// exception or produced the wrong output. | |
| 37 static final Expectation runtimeError = | |
| 38 new Expectation._('RuntimeError', group: fail); | |
| 39 | |
| 40 /// The test failed with an error at compile time and did not execute any | |
| 41 /// code. | |
| 42 /// | |
| 43 /// * For a VM test, means the VM exited with a "compile error" exit code 254. | |
| 44 /// * For an analyzer test, means the analyzer reported a static error. | |
| 45 /// * For a dart2js test, means dart2js reported a compile error. | |
| 46 static final Expectation compileTimeError = | |
| 47 new Expectation._('CompileTimeError', group: fail); | |
| 48 | |
| 49 /// The test itself contains a comment with `@runtime-error` in it, | |
| 50 /// indicating it should have produced a runtime error when run. But when it | |
| 51 /// was run, the test completed without error. | |
| 52 static final Expectation missingRuntimeError = | |
| 53 new Expectation._('MissingRuntimeError', group: fail); | |
| 54 | |
| 55 /// The test itself contains a comment with `@compile-error` in it, | |
| 56 /// indicating it should have produced an error when compiled. But when it | |
| 57 /// was compiled, no error was reported. | |
| 58 static final Expectation missingCompileTimeError = | |
| 59 new Expectation._('MissingCompileTimeError', group: fail); | |
| 60 | |
| 61 /// When the test is processed by analyzer, a static warning should be | |
| 62 /// reported. | |
| 63 static final Expectation staticWarning = | |
| 64 new Expectation._('StaticWarning', group: fail); | |
| 65 | |
| 66 /// The test itself contains a comment with `@static-warning` in it, | |
| 67 /// indicating analyzer should report a static warning when analyzing it, but | |
| 68 /// analysis did not produce any warnings. | |
| 69 static final Expectation missingStaticWarning = | |
| 70 new Expectation._('MissingStaticWarning', group: fail); | |
| 71 | |
| 72 /// An invocation of "pub get" exited with a non-zero exit code. | |
| 73 // TODO(rnystrom): Is this still used? If not, remove. | |
| 74 static final Expectation pubGetError = | |
| 75 new Expectation._('PubGetError', group: fail); | |
| 76 | |
| 77 /// The stdout or stderr produced by the test was not valid UTF-8 and could | |
| 78 /// not be decoded. | |
| 79 // TODO(rnystrom): The only test that uses this expectation is the one that | |
| 80 // tests that the test runner handles this expectation. Remove it? | |
| 81 static final Expectation nonUtf8Error = | |
| 82 new Expectation._('NonUtf8Output', group: fail); | |
| 83 | |
| 84 /// The VM exited with the special exit code 252. | |
| 85 static final Expectation dartkCrash = | |
| 86 new Expectation._('DartkCrash', group: crash); | |
| 87 | |
| 88 /// A timeout occurred in a test using the Kernel-based front end. | |
| 89 static final Expectation dartkTimeout = | |
| 90 new Expectation._('DartkTimeout', group: timeout); | |
| 91 | |
| 92 /// A compile error was reported on a test compiled using the Kernel-based | |
| 93 /// front end. | |
| 94 static final Expectation dartkCompileTimeError = | |
| 95 new Expectation._('DartkCompileTimeError', group: compileTimeError); | |
| 96 | |
| 97 // "meta expectations" | |
| 98 /// A marker applied to a test to indicate that the other non-pass | |
| 99 /// expectations are intentional and not a result of bugs or features that | |
| 100 /// have yet to be implemented. | |
| 101 /// | |
| 102 /// For example, a test marked "RuntimeError, Ok" means "This test is | |
| 103 /// *supposed* to fail at runtime." | |
| 104 // TODO(rnystrom): This is redundant with other mechanisms like | |
| 105 // `@runtime-error` and the markers in analyzer tests for stating where a | |
| 106 // static error should be reported. It leads to perpetually larger status | |
| 107 // files and means a reader of a test can't tell what the intended behavior | |
| 108 // actually is without knowing which status files mention it. Remove. | |
| 109 static final Expectation ok = new Expectation._('Ok', isMeta: true); | |
| 110 | |
| 111 /// A marker that indicates the test takes longer to complete than most tests. | |
| 112 /// Tells the test runner to increase the timeout when running it. | |
| 113 static final Expectation slow = new Expectation._('Slow', isMeta: true); | |
| 114 | |
| 115 /// Tells the test runner to not attempt to run the test. | |
| 116 /// | |
| 117 /// This means the test runner does not compare the test's actual results with | |
| 118 /// the expected results at all. This expectation should be avoided since it's | |
| 119 /// doesn't indicate *why* the test is being skipped and means we won't | |
| 120 /// notice if the actual behavior of the test changes. | |
| 121 static final Expectation skip = new Expectation._('Skip', isMeta: true); | |
| 122 | |
| 123 /// Tells the test runner to skip the test because it takes too long to | |
| 124 /// complete. | |
| 125 /// | |
| 126 /// Prefer this over timeout since this avoids wasting CPU resources running | |
| 127 /// a test we know won't complete. | |
| 128 static final Expectation skipSlow = | |
| 129 new Expectation._('SkipSlow', isMeta: true, group: skip); | |
| 130 | |
| 131 /// Skips this test because it is not intended to be meaningful for a certain | |
| 132 /// reason or on some configuration. | |
| 133 /// | |
| 134 /// For example, tests that use dart:io are SkipByDesign on the browser since | |
| 135 /// dart:io isn't supported there. | |
| 136 static final Expectation skipByDesign = | |
| 137 new Expectation._('SkipByDesign', isMeta: true); | |
| 138 | |
| 139 /// Can be returned by the test runner to say the result should be ignored, | |
| 140 /// and assumed to meet the expectations, due to an infrastructure failure. | |
| 141 /// | |
| 142 /// This should not appear in status files. | |
| 143 static final Expectation ignore = new Expectation._('Ignore'); | |
| 144 | |
| 145 /// Used by pkg/front_end/lib/src/fasta/testing, but not used by test.dart. | |
| 146 /// Included here so that we can parse .status files that contain it. | |
| 147 static final Expectation verificationError = | |
| 148 new Expectation._('VerificationError'); | |
| 149 | |
| 150 /// Maps case-insensitive names to expectations. | |
| 151 static Map<String, Expectation> _all = new Map.fromIterable(<Expectation>[ | |
| 152 pass, | |
| 153 crash, | |
| 154 timeout, | |
| 155 fail, | |
| 156 runtimeError, | |
| 157 compileTimeError, | |
| 158 missingRuntimeError, | |
| 159 missingCompileTimeError, | |
| 160 staticWarning, | |
| 161 missingStaticWarning, | |
| 162 pubGetError, | |
| 163 nonUtf8Error, | |
| 164 dartkCrash, | |
| 165 dartkTimeout, | |
| 166 dartkCompileTimeError, | |
| 167 ok, | |
| 168 slow, | |
| 169 skip, | |
| 170 skipSlow, | |
| 171 skipByDesign, | |
| 172 ignore, | |
| 173 verificationError, | |
| 174 ], key: (Expectation expectation) => expectation._name.toLowerCase()); | |
| 175 | |
| 176 /// Looks up the expectation with [name]. | |
| 177 static Expectation find(String name) { | |
| 178 var expectation = _all[name.toLowerCase()]; | |
| 179 if (expectation == null) { | |
| 180 throw new ArgumentError("Could not find an expectation named '$name'."); | |
| 181 } | |
| 182 | |
| 183 return expectation; | |
| 184 } | |
| 185 | |
| 186 final String _name; | |
| 187 final Expectation _group; | |
| 188 | |
| 189 /// Whether this expectation is a test outcome. If not, it's a "meta marker". | |
| 190 final bool isOutcome; | |
| 191 | |
| 192 Expectation._(this._name, {Expectation group, bool isMeta: false}) | |
| 193 : _group = group, | |
| 194 isOutcome = !isMeta; | |
| 195 | |
| 196 bool canBeOutcomeOf(Expectation expectation) { | |
| 197 var outcome = this; | |
| 198 if (outcome == ignore) return true; | |
| 199 | |
| 200 while (outcome != null) { | |
| 201 if (outcome == expectation) { | |
| 202 return true; | |
| 203 } | |
| 204 outcome = outcome._group; | |
| 205 } | |
| 206 | |
| 207 return false; | |
| 208 } | |
| 209 | |
| 210 String toString() => _name; | |
| 211 } | |
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Chromium Code Reviews
Issue 2888213002:
Revert "Re-apply status file parser changes from 0b7728da1bef08c1c1e092005d9fd8c8bff5fa6c." (Closed)
