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jestjs / jest

Delightful JavaScript Testing.
https://jestjs.io
MIT License
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-i has memory issue? #5157

Closed OverseePublic closed 6 years ago

OverseePublic commented 6 years ago

Reproducing project can be found:

https://github.com/OverseePublic/jest-memory-test

Without the -i image

With the -i image

Is this a memory bug or expected behavior?

OverseePublic commented 6 years ago

Also happens in the same repository in enzyme branch image

hudochenkov commented 6 years ago

We have the same problem in https://github.com/stylelint/stylelint/pull/3069

Tests finished:

Jest 22.0.4: $ npm run jest -- --logHeapUsage ``` $ npm run jest -- --logHeapUsage > stylelint@8.4.0 jest /Users/aleks/projects/stylelint > jest "--logHeapUsage" PASS lib/rules/no-missing-end-of-source-newline/__tests__/index.js (51 MB heap size) PASS lib/rules/font-family-no-duplicate-names/__tests__/index.js (50 MB heap size) PASS lib/rules/no-invalid-double-slash-comments/__tests__/index.js (47 MB heap size) PASS lib/rules/declaration-property-unit-whitelist/__tests__/index.js (43 MB heap size) PASS lib/rules/unit-whitelist/__tests__/index.js (54 MB heap size) PASS lib/rules/font-family-name-quotes/__tests__/index.js (53 MB heap size) PASS lib/rules/no-extra-semicolons/__tests__/index.js (61 MB heap size) PASS lib/rules/number-max-precision/__tests__/index.js (64 MB heap size) PASS lib/rules/property-blacklist/__tests__/index.js (59 MB heap size) PASS lib/rules/no-eol-whitespace/__tests__/index.js (56 MB heap size) PASS lib/rules/number-no-trailing-zeros/__tests__/index.js (65 MB heap size) PASS lib/rules/property-no-unknown/__tests__/index.js (63 MB heap size) PASS lib/rules/no-empty-source/__tests__/index.js (66 MB heap size) PASS lib/rules/property-case/__tests__/index.js (65 MB heap size) PASS lib/rules/property-no-vendor-prefix/__tests__/index.js (70 MB heap size) PASS lib/rules/no-duplicate-selectors/__tests__/index.js (80 MB heap size) PASS lib/rules/property-whitelist/__tests__/index.js (79 MB heap size) PASS lib/rules/no-duplicate-at-import-rules/__tests__/index.js (71 MB heap size) PASS lib/rules/no-descending-specificity/__tests__/index.js (75 MB heap size) PASS lib/rules/selector-attribute-operator-blacklist/__tests__/index.js (86 MB heap size) PASS lib/rules/media-query-list-comma-space-before/__tests__/index.js (85 MB heap size) PASS lib/rules/selector-attribute-brackets-space-inside/__tests__/index.js (88 MB heap size) PASS lib/rules/media-query-list-comma-space-after/__tests__/index.js (79 MB heap size) PASS lib/rules/rule-empty-line-before/__tests__/index.js (90 MB heap size) PASS lib/rules/media-query-list-comma-newline-before/__tests__/index.js (93 MB heap size) PASS lib/rules/media-query-list-comma-newline-after/__tests__/index.js (103 MB heap size) PASS lib/rules/selector-attribute-operator-whitelist/__tests__/index.js (83 MB heap size) PASS lib/rules/media-feature-range-operator-space-before/__tests__/index.js (100 MB heap size) PASS lib/rules/selector-attribute-operator-space-after/__tests__/index.js (96 MB heap size) PASS lib/rules/media-feature-range-operator-space-after/__tests__/index.js (97 MB heap size) PASS lib/rules/selector-attribute-quotes/__tests__/index.js (84 MB heap size) PASS lib/rules/media-feature-parentheses-space-inside/__tests__/index.js (98 MB heap size) PASS lib/rules/media-feature-name-whitelist/__tests__/index.js (116 MB heap size) PASS lib/rules/media-feature-name-no-vendor-prefix/__tests__/index.js (98 MB heap size) PASS lib/rules/selector-attribute-operator-space-before/__tests__/index.js (107 MB heap size) PASS lib/rules/selector-class-pattern/__tests__/index.js (119 MB heap size) PASS lib/rules/selector-combinator-space-after/__tests__/index.js (118 MB heap size) PASS lib/rules/selector-combinator-space-before/__tests__/index.js (115 MB heap size) PASS lib/rules/selector-descendant-combinator-no-non-space/__tests__/index.js (115 MB heap size) PASS lib/rules/selector-id-pattern/__tests__/index.js (120 MB heap size) PASS lib/rules/media-feature-name-blacklist/__tests__/index.js (128 MB heap size) PASS lib/rules/media-feature-name-case/__tests__/index.js (128 MB heap size) PASS lib/rules/media-feature-name-no-unknown/__tests__/index.js (131 MB heap size) PASS lib/rules/selector-list-comma-newline-before/__tests__/index.js (130 MB heap size) PASS lib/rules/selector-list-comma-newline-after/__tests__/index.js (110 MB heap size) PASS lib/rules/media-feature-colon-space-before/__tests__/index.js (127 MB heap size) PASS lib/rules/max-nesting-depth/__tests__/index.js (113 MB heap size) PASS lib/rules/media-feature-colon-space-after/__tests__/index.js (151 MB heap size) PASS lib/rules/selector-list-comma-space-after/__tests__/index.js (139 MB heap size) PASS lib/rules/max-line-length/__tests__/index.js (131 MB heap size) PASS lib/rules/selector-list-comma-space-before/__tests__/index.js (146 MB heap size) PASS lib/rules/selector-max-attribute/__tests__/index.js (150 MB heap size) PASS lib/rules/selector-max-class/__tests__/index.js (124 MB heap size) PASS lib/rules/max-empty-lines/__tests__/index.js (128 MB heap size) PASS lib/rules/selector-max-combinators/__tests__/index.js (138 MB heap size) PASS lib/rules/keyframe-declaration-no-important/__tests__/index.js (131 MB heap size) PASS lib/rules/length-zero-no-unit/__tests__/index.js (124 MB heap size) PASS lib/rules/selector-max-compound-selectors/__tests__/index.js (152 MB heap size) PASS lib/rules/indentation/__tests__/selectors.js (135 MB heap size) PASS lib/rules/selector-max-id/__tests__/index.js (145 MB heap size) PASS lib/rules/indentation/__tests__/html.js (138 MB heap size) PASS lib/rules/selector-max-specificity/__tests__/index.js (138 MB heap size) PASS lib/rules/indentation/__tests__/rules.js (163 MB heap size) PASS lib/rules/selector-max-universal/__tests__/index.js (158 MB heap size) PASS lib/rules/indentation/__tests__/comments.js (157 MB heap size) PASS lib/rules/selector-max-type/__tests__/index.js (161 MB heap size) PASS lib/rules/indentation/__tests__/functions.js (163 MB heap size) PASS lib/rules/selector-max-empty-lines/__tests__/index.js (173 MB heap size) PASS lib/rules/selector-nested-pattern/__tests__/index.js (157 MB heap size) PASS lib/rules/selector-no-vendor-prefix/__tests__/index.js (131 MB heap size) PASS lib/rules/indentation/__tests__/at-rules.js (180 MB heap size) PASS lib/rules/function-whitespace-after/__tests__/index.js (171 MB heap size) PASS lib/rules/function-whitelist/__tests__/index.js (171 MB heap size) PASS lib/rules/selector-pseudo-class-blacklist/__tests__/index.js (193 MB heap size) PASS lib/rules/function-url-scheme-whitelist/__tests__/index.js (179 MB heap size) PASS lib/rules/function-url-scheme-blacklist/__tests__/index.js (186 MB heap size) PASS lib/rules/selector-pseudo-class-case/__tests__/index.js (162 MB heap size) PASS lib/rules/selector-pseudo-class-no-unknown/__tests__/index.js (188 MB heap size) PASS lib/rules/function-url-quotes/__tests__/index.js (190 MB heap size) PASS lib/rules/selector-pseudo-class-parentheses-space-inside/__tests__/index.js (213 MB heap size) PASS lib/rules/function-url-no-scheme-relative/__tests__/index.js (187 MB heap size) PASS lib/rules/selector-pseudo-class-whitelist/__tests__/index.js (204 MB heap size) PASS lib/rules/function-parentheses-space-inside/__tests__/index.js (177 MB heap size) PASS lib/rules/selector-no-qualifying-type/__tests__/index.js (154 MB heap size) PASS lib/rules/selector-pseudo-element-case/__tests__/index.js (161 MB heap size) PASS lib/rules/selector-pseudo-element-colon-notation/__tests__/index.js (143 MB heap size) PASS lib/rules/function-parentheses-newline-inside/__tests__/index.js (157 MB heap size) PASS lib/rules/selector-pseudo-element-no-unknown/__tests__/index.js (177 MB heap size) PASS lib/rules/function-name-case/__tests__/index.js (154 MB heap size) PASS lib/rules/selector-type-case/__tests__/index.js (172 MB heap size) PASS lib/rules/function-max-empty-lines/__tests__/index.js (193 MB heap size) PASS lib/rules/function-linear-gradient-no-nonstandard-direction/__tests__/index.js (180 MB heap size) PASS lib/rules/selector-type-no-unknown/__tests__/index.js (159 MB heap size) PASS lib/rules/function-comma-space-before/__tests__/index.js (172 MB heap size) PASS lib/rules/string-no-newline/__tests__/index.js (185 MB heap size) PASS lib/rules/function-comma-space-after/__tests__/index.js (171 MB heap size) PASS lib/rules/shorthand-property-no-redundant-values/__tests__/index.js (196 MB heap size) PASS lib/rules/string-quotes/__tests__/index.js (191 MB heap size) PASS lib/rules/time-min-milliseconds/__tests__/index.js (193 MB heap size) PASS lib/rules/function-comma-newline-after/__tests__/index.js (173 MB heap size) PASS lib/rules/function-comma-newline-before/__tests__/index.js (213 MB heap size) PASS lib/rules/function-calc-no-unspaced-operator/__tests__/index.js (203 MB heap size) PASS lib/rules/function-blacklist/__tests__/index.js (208 MB heap size) PASS lib/rules/unit-blacklist/__tests__/index.js (195 MB heap size) PASS lib/rules/font-weight-notation/__tests__/index.js (216 MB heap size) PASS lib/rules/unit-no-unknown/__tests__/index.js (197 MB heap size) PASS lib/rules/font-family-no-missing-generic-family-keyword/__tests__/index.js (159 MB heap size) PASS lib/rules/unit-case/__tests__/index.js (214 MB heap size) PASS lib/rules/declaration-property-value-whitelist/__tests__/index.js (217 MB heap size) PASS lib/rules/declaration-property-value-blacklist/__tests__/index.js (223 MB heap size) PASS lib/__tests__/createLinter.test.js (208 MB heap size) PASS lib/rules/number-leading-zero/__tests__/index.js (229 MB heap size) PASS lib/rules/value-list-comma-newline-after/__tests__/index.js (183 MB heap size) PASS lib/rules/value-list-comma-newline-before/__tests__/index.js (227 MB heap size) PASS lib/rules/declaration-property-unit-blacklist/__tests__/index.js (227 MB heap size) PASS lib/rules/declaration-no-important/__tests__/index.js (221 MB heap size) PASS lib/rules/value-list-comma-space-after/__tests__/index.js (243 MB heap size) PASS lib/rules/value-list-comma-space-before/__tests__/index.js (247 MB heap size) PASS lib/rules/value-list-max-empty-lines/__tests__/index.js (250 MB heap size) PASS lib/rules/value-keyword-case/__tests__/index.js (221 MB heap size) PASS lib/testUtils/__tests__/createRuleTester.test.js (258 MB heap size) PASS lib/rules/declaration-colon-space-before/__tests__/index.js (247 MB heap size) PASS lib/testUtils/__tests__/mergeTestDescriptions.test.js (243 MB heap size) PASS lib/rules/value-no-vendor-prefix/__tests__/index.js (167 MB heap size) PASS lib/rules/declaration-empty-line-before/__tests__/index.js (211 MB heap size) PASS lib/rules/declaration-colon-space-after/__tests__/index.js (257 MB heap size) PASS lib/rules/declaration-colon-newline-after/__tests__/index.js (258 MB heap size) PASS lib/rules/declaration-block-trailing-semicolon/__tests__/index.js (266 MB heap size) PASS lib/utils/__tests__/addEmptyLineBefore.test.js (205 MB heap size) PASS lib/utils/__tests__/atRuleParamIndex.test.js (177 MB heap size) PASS lib/utils/__tests__/beforeBlockString.test.js (197 MB heap size) PASS lib/rules/declaration-block-semicolon-space-before/__tests__/index.js (218 MB heap size) PASS lib/utils/__tests__/blockString.test.js (288 MB heap size) PASS lib/rules/declaration-block-single-line-max-declarations/__tests__/index.js (193 MB heap size) PASS lib/utils/__tests__/blurComments.test.js (187 MB heap size) PASS lib/rules/declaration-block-semicolon-space-after/__tests__/index.js (202 MB heap size) PASS lib/rules/declaration-block-semicolon-newline-before/__tests__/index.js (222 MB heap size) PASS lib/utils/__tests__/blurFunctionArguments.test.js (240 MB heap size) PASS lib/rules/declaration-block-semicolon-newline-after/__tests__/index.js (207 MB heap size) PASS lib/utils/__tests__/blurInterpolation.test.js (203 MB heap size) PASS lib/utils/__tests__/checkAgainstRule.test.js (213 MB heap size) PASS lib/rules/declaration-block-no-redundant-longhand-properties/__tests__/index.js (206 MB heap size) PASS lib/rules/declaration-block-no-duplicate-properties/__tests__/index.js (236 MB heap size) PASS lib/utils/__tests__/containsString.test.js (249 MB heap size) PASS lib/rules/declaration-block-no-shorthand-property-overrides/__tests__/index.js (204 MB heap size) PASS lib/utils/__tests__/declarationValueIndex.test.js (225 MB heap size) PASS lib/rules/declaration-bang-space-before/__tests__/index.js (225 MB heap size) PASS lib/utils/__tests__/findAnimationName.test.js (216 MB heap size) PASS lib/rules/declaration-bang-space-after/__tests__/index.js (219 MB heap size) PASS lib/utils/__tests__/findAtRuleContext.test.js (259 MB heap size) PASS lib/rules/custom-property-pattern/__tests__/index.js (253 MB heap size) PASS lib/utils/__tests__/findFontFamily.test.js (236 MB heap size) PASS lib/rules/custom-media-pattern/__tests__/index.js (245 MB heap size) PASS lib/utils/__tests__/findListStyleType.test.js (227 MB heap size) PASS lib/rules/comment-word-blacklist/__tests__/index.js (243 MB heap size) PASS lib/utils/__tests__/getNextNonSharedLineCommentNode.test.js (246 MB heap size) PASS lib/rules/comment-whitespace-inside/__tests__/index.js (270 MB heap size) PASS lib/utils/__tests__/getPreviousNonSharedLineCommentNode.test.js (249 MB heap size) PASS lib/rules/custom-property-empty-line-before/__tests__/index.js (237 MB heap size) PASS lib/rules/comment-no-empty/__tests__/index.js (249 MB heap size) PASS lib/utils/__tests__/functionArgumentsSearch.test.js (198 MB heap size) PASS lib/utils/__tests__/getSchemeFromUrl.test.js (256 MB heap size) PASS lib/utils/__tests__/getUnitFromValueNode.test.js (259 MB heap size) PASS lib/utils/__tests__/hasBlock.test.js (273 MB heap size) PASS lib/rules/color-no-invalid-hex/__tests__/index.js (274 MB heap size) PASS lib/rules/color-no-hex/__tests__/index.js (241 MB heap size) PASS lib/rules/comment-empty-line-before/__tests__/index.js (265 MB heap size) PASS lib/utils/__tests__/hasEmptyBlock.test.js (266 MB heap size) PASS lib/utils/__tests__/hasEmptyLine.test.js (283 MB heap size) PASS lib/utils/__tests__/hasInterpolation.test.js (263 MB heap size) PASS lib/rules/color-named/__tests__/index.js (215 MB heap size) PASS lib/rules/color-hex-case/__tests__/index.js (293 MB heap size) PASS lib/utils/__tests__/isAfterComment.test.js (288 MB heap size) PASS lib/rules/block-opening-brace-space-before/__tests__/index.js (282 MB heap size) PASS lib/utils/__tests__/isAfterSingleLineComment.test.js (273 MB heap size) PASS lib/rules/color-hex-length/__tests__/index.js (269 MB heap size) PASS lib/utils/__tests__/isBlocklessAtRuleAfterBlocklessAtRule.test.js (315 MB heap size) PASS lib/rules/block-opening-brace-space-after/__tests__/index.js (303 MB heap size) PASS lib/rules/block-opening-brace-newline-before/__tests__/index.js (239 MB heap size) PASS lib/utils/__tests__/isBlocklessAtRuleAfterSameNameBlocklessAtRule.test.js (292 MB heap size) PASS lib/rules/block-no-empty/__tests__/index.js (290 MB heap size) PASS lib/utils/__tests__/isCounterIncrementCustomIdentValue.test.js (226 MB heap size) PASS lib/rules/block-opening-brace-newline-after/__tests__/index.js (301 MB heap size) PASS lib/utils/__tests__/isCounterResetCustomIdentValue.test.js (313 MB heap size) PASS lib/utils/__tests__/isCustomElement.test.js (315 MB heap size) PASS lib/rules/block-closing-brace-space-before/__tests__/index.js (323 MB heap size) PASS lib/utils/__tests__/isCustomMediaQuery.test.js (236 MB heap size) PASS lib/utils/__tests__/isCustomProperty.test.js (322 MB heap size) PASS lib/rules/block-closing-brace-newline-before/__tests__/index.js (304 MB heap size) PASS lib/rules/block-closing-brace-space-after/__tests__/index.js (258 MB heap size) PASS lib/utils/__tests__/isCustomPropertySet.test.js (345 MB heap size) PASS lib/rules/at-rule-whitelist/__tests__/index.js (253 MB heap size) PASS lib/utils/__tests__/isFirstNested.test.js (269 MB heap size) PASS lib/rules/block-closing-brace-newline-after/__tests__/index.js (319 MB heap size) PASS lib/rules/at-rule-semicolon-space-before/__tests__/index.js (314 MB heap size) PASS lib/utils/__tests__/isKeyframeRule.test.js (263 MB heap size) PASS lib/rules/block-closing-brace-empty-line-before/__tests__/index.js (329 MB heap size) PASS lib/utils/__tests__/isCustomSelector.test.js (252 MB heap size) PASS lib/rules/at-rule-no-vendor-prefix/__tests__/index.js (282 MB heap size) PASS lib/utils/__tests__/isKeyframeSelector.test.js (252 MB heap size) PASS lib/rules/at-rule-semicolon-newline-after/__tests__/index.js (275 MB heap size) PASS lib/utils/__tests__/isNumbery.test.js (273 MB heap size) PASS lib/utils/__tests__/isOnlyWhitespace.test.js (261 MB heap size) PASS lib/utils/__tests__/isRangeContextMediaFeature.test.js (262 MB heap size) PASS lib/rules/at-rule-name-space-after/__tests__/index.js (249 MB heap size) PASS lib/rules/at-rule-no-unknown/__tests__/index.js (335 MB heap size) PASS lib/utils/__tests__/isSharedLineComment.test.js (296 MB heap size) PASS lib/rules/at-rule-name-newline-after/__tests__/index.js (302 MB heap size) PASS lib/rules/at-rule-name-case/__tests__/index.js (292 MB heap size) PASS lib/utils/__tests__/isSingleLineString.test.js (271 MB heap size) PASS lib/rules/at-rule-blacklist/__tests__/index.js (268 MB heap size) PASS lib/utils/__tests__/isStandardSyntaxAtRule.test.js (254 MB heap size) PASS lib/utils/__tests__/isStandardSyntaxDeclaration.test.js (313 MB heap size) PASS lib/formatters/__tests__/verboseFormatter.test.js (300 MB heap size) PASS lib/utils/__tests__/isStandardSyntaxFunction.test.js (294 MB heap size) PASS lib/formatters/__tests__/stringFormatter.test.js (309 MB heap size) PASS lib/utils/__tests__/isStandardSyntaxMediaFeature.test.js (264 MB heap size) PASS lib/formatters/__tests__/needlessDisablesStringFormatter.test.js (284 MB heap size) PASS lib/formatters/__tests__/jsonFormatter.test.js (323 MB heap size) PASS lib/utils/__tests__/isStandardSyntaxMediaFeatureName.test.js (311 MB heap size) PASS lib/__tests__/stylelintignore-test/stylelintignore.test.js (306 MB heap size) PASS lib/utils/__tests__/isStandardSyntaxProperty.test.js (318 MB heap size) PASS lib/utils/__tests__/isStandardSyntaxRule.test.js (295 MB heap size) PASS lib/utils/__tests__/isStandardSyntaxSelector.test.js (335 MB heap size) PASS lib/__tests__/standalone.test.js (277 MB heap size) PASS lib/__tests__/standalone-quiet.test.js (316 MB heap size) PASS lib/utils/__tests__/isStandardSyntaxTypeSelector.test.js (329 MB heap size) PASS lib/__tests__/standalone-parseErrors.test.js (305 MB heap size) PASS lib/utils/__tests__/isStandardSyntaxUrl.test.js (348 MB heap size) PASS lib/rules/at-rule-empty-line-before/__tests__/index.js (310 MB heap size) PASS lib/__tests__/standalone-needlessDisables.test.js (289 MB heap size) PASS lib/__tests__/standalone-syntax.test.js (244 MB heap size) PASS lib/utils/__tests__/isStandardSyntaxValue.test.js (326 MB heap size) PASS lib/__tests__/standalone-formatter.test.js (352 MB heap size) PASS lib/utils/__tests__/isValidFontSize.test.js (315 MB heap size) PASS lib/__tests__/standalone-deprecations.test.js (358 MB heap size) PASS lib/utils/__tests__/isValidHex.test.js (319 MB heap size) PASS lib/utils/__tests__/isVariable.test.js (253 MB heap size) PASS lib/__tests__/standalone-cache.test.js (304 MB heap size) PASS lib/utils/__tests__/matchesStringOrRegExp.test.js (363 MB heap size) PASS lib/__tests__/processors.test.js (340 MB heap size) PASS lib/__tests__/postcssPlugin.test.js (326 MB heap size) PASS lib/utils/__tests__/nextNonCommentNode.test.js (367 MB heap size) PASS lib/__tests__/plugins.test.js (334 MB heap size) PASS lib/utils/__tests__/nodeContextLookup.test.js (264 MB heap size) PASS lib/__tests__/normalizeRuleSettings.test.js (315 MB heap size) PASS lib/utils/__tests__/optionsMatches.test.js (373 MB heap size) PASS lib/__tests__/normalizeRuleSettings-integration.test.js (352 MB heap size) PASS lib/utils/__tests__/removeEmptyLineBefore.test.js (349 MB heap size) PASS lib/__tests__/message.test.js (287 MB heap size) PASS lib/utils/__tests__/report.test.js (345 MB heap size) PASS lib/utils/__tests__/ruleMessages.test.js (337 MB heap size) PASS lib/utils/__tests__/validateObjectWithStringArrayProps.test.js (362 MB heap size) PASS lib/__tests__/integration.test.js (387 MB heap size) PASS lib/__tests__/ignoreDisables.test.js (361 MB heap size) PASS lib/__tests__/needlessDisables.test.js (286 MB heap size) PASS lib/utils/__tests__/validateOptions.test.js (300 MB heap size) PASS lib/__tests__/formatters.test.js (385 MB heap size) PASS lib/__tests__/ignore.test.js (360 MB heap size) PASS system-tests/002/002.test.js (401 MB heap size) PASS lib/__tests__/extends.test.js (373 MB heap size) PASS lib/__tests__/disableRanges.test.js (312 MB heap size) PASS system-tests/003/003.test.js (309 MB heap size) PASS lib/__tests__/disableRanges-integration.test.js (383 MB heap size) PASS lib/__tests__/defaultSeverity.test.js (382 MB heap size) PASS system-tests/fix/fix.test.js (327 MB heap size) PASS lib/rules/no-unknown-animations/__tests__/index.js (321 MB heap size) PASS system-tests/005/005.test.js (432 MB heap size) PASS system-tests/004/004.test.js (394 MB heap size) PASS system-tests/001/001.test.js (359 MB heap size) Test Suites: 270 passed, 270 total Tests: 13254 passed, 13254 total Snapshots: 6 passed, 6 total Time: 26.179s Ran all test suites. ```

Tests failed due out of memory situation:
Jest 22.0.4: $ npm run jest -- --runInBand --logHeapUsage ``` $ npm run jest -- --runInBand --logHeapUsage > stylelint@8.4.0 jest /Users/aleks/projects/stylelint > jest "--runInBand" "--logHeapUsage" PASS lib/rules/at-rule-empty-line-before/__tests__/index.js (76 MB heap size) PASS system-tests/001/001.test.js (82 MB heap size) PASS lib/rules/selector-no-qualifying-type/__tests__/index.js (118 MB heap size) PASS lib/rules/selector-max-empty-lines/__tests__/index.js (137 MB heap size) PASS system-tests/004/004.test.js (144 MB heap size) PASS lib/rules/value-keyword-case/__tests__/index.js (142 MB heap size) PASS lib/rules/selector-attribute-operator-space-before/__tests__/index.js (175 MB heap size) PASS lib/rules/selector-attribute-operator-space-after/__tests__/index.js (208 MB heap size) PASS lib/rules/declaration-empty-line-before/__tests__/index.js (232 MB heap size) PASS lib/rules/rule-empty-line-before/__tests__/index.js (263 MB heap size) PASS lib/rules/custom-property-empty-line-before/__tests__/index.js (231 MB heap size) PASS system-tests/005/005.test.js (253 MB heap size) PASS lib/__tests__/needlessDisables.test.js (266 MB heap size) PASS lib/rules/color-named/__tests__/index.js (283 MB heap size) PASS lib/rules/no-extra-semicolons/__tests__/index.js (309 MB heap size) PASS lib/rules/selector-attribute-brackets-space-inside/__tests__/index.js (332 MB heap size) PASS lib/rules/indentation/__tests__/rules.js (353 MB heap size) PASS lib/rules/property-case/__tests__/index.js (366 MB heap size) PASS lib/rules/function-url-quotes/__tests__/index.js (332 MB heap size) PASS lib/rules/selector-pseudo-class-case/__tests__/index.js (348 MB heap size) PASS lib/rules/font-family-name-quotes/__tests__/index.js (368 MB heap size) PASS lib/rules/comment-empty-line-before/__tests__/index.js (389 MB heap size) PASS lib/rules/media-query-list-comma-space-after/__tests__/index.js (413 MB heap size) PASS lib/rules/unit-case/__tests__/index.js (426 MB heap size) PASS lib/rules/block-closing-brace-newline-after/__tests__/index.js (454 MB heap size) PASS lib/rules/indentation/__tests__/functions.js (470 MB heap size) PASS lib/rules/unit-whitelist/__tests__/index.js (491 MB heap size) PASS lib/rules/shorthand-property-no-redundant-values/__tests__/index.js (508 MB heap size) PASS lib/rules/block-closing-brace-space-after/__tests__/index.js (523 MB heap size) PASS lib/rules/selector-pseudo-element-case/__tests__/index.js (549 MB heap size) PASS lib/rules/max-line-length/__tests__/index.js (483 MB heap size) PASS lib/rules/block-opening-brace-space-before/__tests__/index.js (511 MB heap size) PASS lib/rules/function-parentheses-space-inside/__tests__/index.js (525 MB heap size) PASS lib/rules/block-opening-brace-newline-before/__tests__/index.js (551 MB heap size) PASS lib/rules/at-rule-name-space-after/__tests__/index.js (564 MB heap size) PASS lib/rules/unit-no-unknown/__tests__/index.js (588 MB heap size) PASS lib/rules/unit-blacklist/__tests__/index.js (600 MB heap size) PASS lib/rules/selector-max-specificity/__tests__/index.js (618 MB heap size) PASS lib/rules/length-zero-no-unit/__tests__/index.js (642 MB heap size) PASS lib/__tests__/ignore.test.js (655 MB heap size) PASS lib/rules/selector-combinator-space-after/__tests__/index.js (671 MB heap size) PASS lib/rules/number-leading-zero/__tests__/index.js (693 MB heap size) PASS system-tests/002/002.test.js (704 MB heap size) PASS lib/rules/indentation/__tests__/at-rules.js (722 MB heap size) PASS lib/rules/selector-max-type/__tests__/index.js (742 MB heap size) PASS lib/rules/function-name-case/__tests__/index.js (766 MB heap size) PASS lib/rules/at-rule-name-newline-after/__tests__/index.js (786 MB heap size) PASS lib/rules/block-closing-brace-space-before/__tests__/index.js (806 MB heap size) PASS lib/rules/media-feature-name-case/__tests__/index.js (815 MB heap size) PASS lib/rules/selector-combinator-space-before/__tests__/index.js (738 MB heap size) PASS lib/rules/block-opening-brace-space-after/__tests__/index.js (758 MB heap size) PASS lib/rules/selector-class-pattern/__tests__/index.js (772 MB heap size) PASS lib/rules/at-rule-name-case/__tests__/index.js (789 MB heap size) PASS lib/rules/function-calc-no-unspaced-operator/__tests__/index.js (807 MB heap size) PASS lib/__tests__/standalone.test.js (817 MB heap size) PASS lib/rules/function-max-empty-lines/__tests__/index.js (843 MB heap size) PASS lib/rules/function-comma-space-after/__tests__/index.js (859 MB heap size) PASS lib/rules/function-comma-space-before/__tests__/index.js (875 MB heap size) PASS lib/rules/declaration-property-unit-whitelist/__tests__/index.js (886 MB heap size) PASS lib/rules/block-closing-brace-newline-before/__tests__/index.js (911 MB heap size) PASS lib/rules/selector-type-no-unknown/__tests__/index.js (928 MB heap size) PASS lib/rules/function-comma-newline-after/__tests__/index.js (942 MB heap size) PASS lib/rules/selector-nested-pattern/__tests__/index.js (956 MB heap size) PASS lib/rules/selector-list-comma-newline-after/__tests__/index.js (979 MB heap size) PASS lib/rules/selector-max-compound-selectors/__tests__/index.js (990 MB heap size) PASS lib/rules/font-weight-notation/__tests__/index.js (1014 MB heap size) PASS lib/rules/function-url-scheme-whitelist/__tests__/index.js (1026 MB heap size) PASS lib/rules/string-quotes/__tests__/index.js (1049 MB heap size) PASS lib/rules/block-closing-brace-empty-line-before/__tests__/index.js (1063 MB heap size) PASS lib/rules/color-hex-length/__tests__/index.js (984 MB heap size) PASS lib/rules/block-opening-brace-newline-after/__tests__/index.js (1009 MB heap size) PASS lib/rules/no-invalid-double-slash-comments/__tests__/index.js (1024 MB heap size) PASS lib/__tests__/standalone-syntax.test.js (1034 MB heap size) PASS lib/rules/no-missing-end-of-source-newline/__tests__/index.js (1051 MB heap size) PASS lib/rules/function-comma-newline-before/__tests__/index.js (1061 MB heap size) PASS lib/rules/font-family-no-duplicate-names/__tests__/index.js (1079 MB heap size) PASS lib/rules/media-query-list-comma-space-before/__tests__/index.js (1092 MB heap size) PASS lib/rules/declaration-block-semicolon-newline-after/__tests__/index.js (1114 MB heap size) PASS lib/rules/selector-pseudo-class-parentheses-space-inside/__tests__/index.js (1134 MB heap size) PASS lib/rules/no-eol-whitespace/__tests__/index.js (1141 MB heap size) PASS lib/rules/selector-attribute-quotes/__tests__/index.js (1159 MB heap size) PASS lib/rules/selector-list-comma-space-before/__tests__/index.js (1178 MB heap size) PASS lib/rules/selector-type-case/__tests__/index.js (1141 MB heap size) PASS system-tests/003/003.test.js (1164 MB heap size) PASS lib/rules/function-parentheses-newline-inside/__tests__/index.js (1173 MB heap size) PASS lib/rules/color-hex-case/__tests__/index.js (1192 MB heap size) PASS lib/rules/comment-word-blacklist/__tests__/index.js (1215 MB heap size) PASS lib/rules/number-no-trailing-zeros/__tests__/index.js (1231 MB heap size) PASS lib/rules/selector-max-attribute/__tests__/index.js (1238 MB heap size) PASS lib/rules/media-query-list-comma-newline-before/__tests__/index.js (1256 MB heap size) PASS lib/rules/selector-max-id/__tests__/index.js (1248 MB heap size) PASS lib/rules/property-no-unknown/__tests__/index.js (1261 MB heap size) PASS lib/rules/declaration-block-semicolon-space-before/__tests__/index.js (1270 MB heap size) PASS lib/rules/time-min-milliseconds/__tests__/index.js (1291 MB heap size) PASS lib/rules/function-linear-gradient-no-nonstandard-direction/__tests__/index.js (1287 MB heap size) PASS lib/rules/value-list-comma-space-before/__tests__/index.js (1299 MB heap size) PASS lib/rules/function-url-scheme-blacklist/__tests__/index.js (1311 MB heap size) PASS lib/rules/value-list-comma-newline-before/__tests__/index.js (1319 MB heap size) PASS lib/rules/selector-list-comma-newline-before/__tests__/index.js (1330 MB heap size) PASS lib/rules/selector-pseudo-class-no-unknown/__tests__/index.js (1346 MB heap size) PASS lib/rules/selector-list-comma-space-after/__tests__/index.js (1362 MB heap size) PASS lib/rules/value-list-comma-space-after/__tests__/index.js (1373 MB heap size) PASS lib/rules/selector-max-universal/__tests__/index.js (1382 MB heap size) PASS lib/rules/declaration-block-semicolon-newline-before/__tests__/index.js (1395 MB heap size) PASS lib/rules/selector-max-combinators/__tests__/index.js (83.429s, 1404 MB heap size) RUNS lib/rules/media-query-list-comma-newline-after/__tests__/index.js <--- Last few GCs ---> [64616:0x102801600] 303366 ms: Mark-sweep 1411.4 (1537.1) -> 1411.4 (1517.6) MB, 1593.0 / 0.0 ms (+ 0.0 ms in 0 steps since start of marking, biggest step 0.0 ms, walltime since start of marking 1593 ms) last resort GC in old space requested [64616:0x102801600] 304956 ms: Mark-sweep 1411.4 (1517.6) -> 1411.4 (1517.6) MB, 1589.5 / 0.0 ms last resort GC in old space requested <--- JS stacktrace ---> ==== JS stack trace ========================================= Security context: 0x2539c10a5ec1 1: /* anonymous */(aka /* anonymous */) [/Users/aleks/projects/stylelint/node_modules/caniuse-lite/dist/unpacker/feature.js:~48] [pc=0x76d921fa231](this=0x2539e1482311 ,v=0x253927cf50f9 ) 2: arguments adaptor frame: 3->1 3: forEach(this=0x2539b9b48041 ) 5: /* anonymous */(aka /* anonymous */) [/Users/aleks/projects/stylelint/node_modules/cani... FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory 1: node::Abort() [/usr/local/bin/node] 2: node::FatalException(v8::Isolate*, v8::Local, v8::Local) [/usr/local/bin/node] 3: v8::internal::V8::FatalProcessOutOfMemory(char const*, bool) [/usr/local/bin/node] 4: v8::internal::Factory::NewTransitionArray(int) [/usr/local/bin/node] 5: v8::internal::TransitionArray::Insert(v8::internal::Handle, v8::internal::Handle, v8::internal::Handle, v8::internal::SimpleTransitionFlag) [/usr/local/bin/node] 6: v8::internal::Map::CopyReplaceDescriptors(v8::internal::Handle, v8::internal::Handle, v8::internal::Handle, v8::internal::TransitionFlag, v8::internal::MaybeHandle, char const*, v8::internal::SimpleTransitionFlag) [/usr/local/bin/node] 7: v8::internal::Map::CopyAddDescriptor(v8::internal::Handle, v8::internal::Descriptor*, v8::internal::TransitionFlag) [/usr/local/bin/node] 8: v8::internal::Map::CopyWithField(v8::internal::Handle, v8::internal::Handle, v8::internal::Handle, v8::internal::PropertyAttributes, v8::internal::PropertyConstness, v8::internal::Representation, v8::internal::TransitionFlag) [/usr/local/bin/node] 9: v8::internal::Map::TransitionToDataProperty(v8::internal::Handle, v8::internal::Handle, v8::internal::Handle, v8::internal::PropertyAttributes, v8::internal::PropertyConstness, v8::internal::Object::StoreFromKeyed) [/usr/local/bin/node] 10: v8::internal::LookupIterator::PrepareTransitionToDataProperty(v8::internal::Handle, v8::internal::Handle, v8::internal::PropertyAttributes, v8::internal::Object::StoreFromKeyed) [/usr/local/bin/node] 11: v8::internal::StoreIC::LookupForWrite(v8::internal::LookupIterator*, v8::internal::Handle, v8::internal::Object::StoreFromKeyed) [/usr/local/bin/node] 12: v8::internal::StoreIC::UpdateCaches(v8::internal::LookupIterator*, v8::internal::Handle, v8::internal::Object::StoreFromKeyed) [/usr/local/bin/node] 13: v8::internal::StoreIC::Store(v8::internal::Handle, v8::internal::Handle, v8::internal::Handle, v8::internal::Object::StoreFromKeyed) [/usr/local/bin/node] 14: v8::internal::KeyedStoreIC::Store(v8::internal::Handle, v8::internal::Handle, v8::internal::Handle) [/usr/local/bin/node] 15: v8::internal::Runtime_KeyedStoreIC_Miss(int, v8::internal::Object**, v8::internal::Isolate*) [/usr/local/bin/node] 16: 0x76d91e8463d 17: 0x76d921fa231 ```

Old version works:
Jest 21.2.1: $ npm run jest -- --runInBand --logHeapUsage ``` $ npm run jest -- --runInBand --logHeapUsage > stylelint@8.4.0 jest /Users/aleks/projects/stylelint > jest "--runInBand" "--logHeapUsage" PASS lib/rules/at-rule-empty-line-before/__tests__/index.js (64 MB heap size) PASS system-tests/001/001.test.js (108 MB heap size) PASS lib/rules/selector-no-qualifying-type/__tests__/index.js (111 MB heap size) PASS lib/rules/selector-max-empty-lines/__tests__/index.js (157 MB heap size) PASS system-tests/004/004.test.js (129 MB heap size) PASS lib/rules/value-keyword-case/__tests__/index.js (167 MB heap size) PASS lib/rules/selector-attribute-operator-space-before/__tests__/index.js (211 MB heap size) PASS lib/rules/selector-attribute-operator-space-after/__tests__/index.js (210 MB heap size) PASS lib/rules/declaration-empty-line-before/__tests__/index.js (236 MB heap size) PASS lib/rules/rule-empty-line-before/__tests__/index.js (261 MB heap size) PASS lib/rules/custom-property-empty-line-before/__tests__/index.js (285 MB heap size) PASS system-tests/005/005.test.js (244 MB heap size) PASS lib/__tests__/needlessDisables.test.js (256 MB heap size) PASS lib/rules/color-named/__tests__/index.js (279 MB heap size) PASS lib/rules/no-extra-semicolons/__tests__/index.js (303 MB heap size) PASS lib/rules/selector-attribute-brackets-space-inside/__tests__/index.js (324 MB heap size) PASS lib/rules/indentation/__tests__/rules.js (343 MB heap size) PASS lib/rules/property-case/__tests__/index.js (367 MB heap size) PASS lib/rules/function-url-quotes/__tests__/index.js (288 MB heap size) PASS lib/rules/selector-pseudo-class-case/__tests__/index.js (316 MB heap size) PASS lib/rules/font-family-name-quotes/__tests__/index.js (339 MB heap size) PASS lib/rules/comment-empty-line-before/__tests__/index.js (365 MB heap size) PASS lib/rules/media-query-list-comma-space-after/__tests__/index.js (379 MB heap size) PASS lib/rules/unit-case/__tests__/index.js (402 MB heap size) PASS lib/rules/block-closing-brace-newline-after/__tests__/index.js (426 MB heap size) PASS lib/rules/indentation/__tests__/functions.js (441 MB heap size) PASS lib/rules/unit-whitelist/__tests__/index.js (465 MB heap size) PASS lib/rules/shorthand-property-no-redundant-values/__tests__/index.js (490 MB heap size) PASS lib/rules/block-closing-brace-space-after/__tests__/index.js (510 MB heap size) PASS lib/rules/selector-pseudo-element-case/__tests__/index.js (532 MB heap size) PASS lib/rules/max-line-length/__tests__/index.js (393 MB heap size) PASS lib/rules/block-opening-brace-space-before/__tests__/index.js (416 MB heap size) PASS lib/rules/function-parentheses-space-inside/__tests__/index.js (437 MB heap size) PASS lib/rules/block-opening-brace-newline-before/__tests__/index.js (458 MB heap size) PASS lib/rules/at-rule-name-space-after/__tests__/index.js (476 MB heap size) PASS lib/rules/unit-no-unknown/__tests__/index.js (494 MB heap size) PASS lib/rules/unit-blacklist/__tests__/index.js (523 MB heap size) PASS lib/rules/selector-max-specificity/__tests__/index.js (535 MB heap size) PASS lib/rules/length-zero-no-unit/__tests__/index.js (562 MB heap size) PASS lib/__tests__/ignore.test.js (572 MB heap size) PASS lib/rules/selector-combinator-space-after/__tests__/index.js (594 MB heap size) PASS lib/rules/number-leading-zero/__tests__/index.js (620 MB heap size) PASS system-tests/002/002.test.js (629 MB heap size) PASS lib/rules/indentation/__tests__/at-rules.js (652 MB heap size) PASS lib/rules/selector-max-type/__tests__/index.js (485 MB heap size) PASS lib/rules/function-name-case/__tests__/index.js (506 MB heap size) PASS lib/rules/at-rule-name-newline-after/__tests__/index.js (530 MB heap size) PASS lib/rules/block-closing-brace-space-before/__tests__/index.js (544 MB heap size) PASS lib/rules/media-feature-name-case/__tests__/index.js (570 MB heap size) PASS lib/rules/selector-combinator-space-before/__tests__/index.js (593 MB heap size) PASS lib/rules/block-opening-brace-space-after/__tests__/index.js (606 MB heap size) PASS lib/rules/selector-class-pattern/__tests__/index.js (623 MB heap size) PASS lib/rules/at-rule-name-case/__tests__/index.js (643 MB heap size) PASS lib/rules/function-calc-no-unspaced-operator/__tests__/index.js (665 MB heap size) PASS lib/__tests__/standalone.test.js (686 MB heap size) PASS lib/rules/function-max-empty-lines/__tests__/index.js (702 MB heap size) PASS lib/rules/function-comma-space-after/__tests__/index.js (723 MB heap size) PASS lib/rules/function-comma-space-before/__tests__/index.js (742 MB heap size) PASS lib/rules/declaration-property-unit-whitelist/__tests__/index.js (753 MB heap size) PASS lib/rules/block-closing-brace-newline-before/__tests__/index.js (771 MB heap size) PASS lib/rules/selector-type-no-unknown/__tests__/index.js (791 MB heap size) PASS lib/rules/function-comma-newline-after/__tests__/index.js (809 MB heap size) PASS lib/rules/selector-nested-pattern/__tests__/index.js (579 MB heap size) PASS lib/rules/selector-list-comma-newline-after/__tests__/index.js (594 MB heap size) PASS lib/rules/selector-max-compound-selectors/__tests__/index.js (608 MB heap size) PASS lib/rules/font-weight-notation/__tests__/index.js (634 MB heap size) PASS lib/rules/function-url-scheme-whitelist/__tests__/index.js (648 MB heap size) PASS lib/rules/string-quotes/__tests__/index.js (663 MB heap size) PASS lib/rules/block-closing-brace-empty-line-before/__tests__/index.js (692 MB heap size) PASS lib/rules/color-hex-length/__tests__/index.js (703 MB heap size) PASS lib/rules/block-opening-brace-newline-after/__tests__/index.js (720 MB heap size) PASS lib/rules/no-invalid-double-slash-comments/__tests__/index.js (733 MB heap size) PASS lib/__tests__/standalone-syntax.test.js (753 MB heap size) PASS lib/rules/no-missing-end-of-source-newline/__tests__/index.js (769 MB heap size) PASS lib/rules/function-comma-newline-before/__tests__/index.js (781 MB heap size) PASS lib/rules/font-family-no-duplicate-names/__tests__/index.js (798 MB heap size) PASS lib/rules/media-query-list-comma-space-before/__tests__/index.js (815 MB heap size) PASS lib/rules/declaration-block-semicolon-newline-after/__tests__/index.js (838 MB heap size) PASS lib/rules/selector-pseudo-class-parentheses-space-inside/__tests__/index.js (850 MB heap size) PASS lib/rules/no-eol-whitespace/__tests__/index.js (871 MB heap size) PASS lib/rules/selector-attribute-quotes/__tests__/index.js (890 MB heap size) PASS lib/rules/selector-list-comma-space-before/__tests__/index.js (901 MB heap size) PASS lib/rules/selector-type-case/__tests__/index.js (921 MB heap size) PASS system-tests/003/003.test.js (930 MB heap size) PASS lib/rules/function-parentheses-newline-inside/__tests__/index.js (952 MB heap size) PASS lib/rules/color-hex-case/__tests__/index.js (970 MB heap size) PASS lib/rules/comment-word-blacklist/__tests__/index.js (986 MB heap size) PASS lib/rules/number-no-trailing-zeros/__tests__/index.js (718 MB heap size) PASS lib/rules/selector-max-attribute/__tests__/index.js (739 MB heap size) PASS lib/rules/media-query-list-comma-newline-before/__tests__/index.js (758 MB heap size) PASS lib/rules/selector-max-id/__tests__/index.js (777 MB heap size) PASS lib/rules/property-no-unknown/__tests__/index.js (792 MB heap size) PASS lib/rules/declaration-block-semicolon-space-before/__tests__/index.js (803 MB heap size) PASS lib/rules/time-min-milliseconds/__tests__/index.js (826 MB heap size) PASS lib/rules/function-linear-gradient-no-nonstandard-direction/__tests__/index.js (835 MB heap size) PASS lib/rules/value-list-comma-space-before/__tests__/index.js (856 MB heap size) PASS lib/rules/function-url-scheme-blacklist/__tests__/index.js (874 MB heap size) PASS lib/rules/value-list-comma-newline-before/__tests__/index.js (888 MB heap size) PASS lib/rules/selector-list-comma-newline-before/__tests__/index.js (905 MB heap size) PASS lib/rules/selector-pseudo-class-no-unknown/__tests__/index.js (924 MB heap size) PASS lib/rules/selector-list-comma-space-after/__tests__/index.js (946 MB heap size) PASS lib/rules/value-list-comma-space-after/__tests__/index.js (955 MB heap size) PASS lib/rules/selector-max-universal/__tests__/index.js (970 MB heap size) PASS lib/rules/declaration-block-semicolon-newline-before/__tests__/index.js (988 MB heap size) PASS lib/rules/selector-max-combinators/__tests__/index.js (1005 MB heap size) PASS lib/rules/media-query-list-comma-newline-after/__tests__/index.js (1026 MB heap size) PASS lib/__tests__/disableRanges-integration.test.js (1040 MB heap size) PASS lib/rules/selector-pseudo-element-no-unknown/__tests__/index.js (1058 MB heap size) PASS lib/rules/comment-whitespace-inside/__tests__/index.js (756 MB heap size) PASS lib/rules/number-max-precision/__tests__/index.js (774 MB heap size) PASS lib/rules/declaration-block-semicolon-space-after/__tests__/index.js (792 MB heap size) PASS lib/formatters/__tests__/verboseFormatter.test.js (805 MB heap size) PASS lib/rules/no-descending-specificity/__tests__/index.js (826 MB heap size) PASS lib/formatters/__tests__/stringFormatter.test.js (839 MB heap size) PASS lib/rules/max-empty-lines/__tests__/index.js (853 MB heap size) PASS lib/rules/value-list-max-empty-lines/__tests__/index.js (866 MB heap size) PASS lib/rules/media-feature-name-no-unknown/__tests__/index.js (883 MB heap size) PASS system-tests/fix/fix.test.js (897 MB heap size) PASS lib/rules/declaration-colon-space-after/__tests__/index.js (912 MB heap size) PASS lib/rules/function-blacklist/__tests__/index.js (927 MB heap size) PASS lib/rules/declaration-block-no-duplicate-properties/__tests__/index.js (943 MB heap size) PASS lib/rules/indentation/__tests__/selectors.js (966 MB heap size) PASS lib/rules/media-feature-colon-space-before/__tests__/index.js (978 MB heap size) PASS lib/rules/media-feature-parentheses-space-inside/__tests__/index.js (993 MB heap size) PASS lib/rules/selector-max-class/__tests__/index.js (1006 MB heap size) PASS lib/rules/selector-pseudo-class-whitelist/__tests__/index.js (1025 MB heap size) PASS lib/rules/no-duplicate-selectors/__tests__/index.js (1034 MB heap size) PASS lib/rules/property-whitelist/__tests__/index.js (1057 MB heap size) PASS lib/rules/function-whitespace-after/__tests__/index.js (1072 MB heap size) PASS lib/rules/value-list-comma-newline-after/__tests__/index.js (735 MB heap size) PASS lib/rules/value-no-vendor-prefix/__tests__/index.js (747 MB heap size) PASS lib/rules/selector-pseudo-element-colon-notation/__tests__/index.js (761 MB heap size) PASS lib/formatters/__tests__/needlessDisablesStringFormatter.test.js (784 MB heap size) PASS lib/rules/selector-id-pattern/__tests__/index.js (792 MB heap size) PASS lib/__tests__/standalone-cache.test.js (811 MB heap size) PASS lib/rules/property-blacklist/__tests__/index.js (822 MB heap size) PASS lib/rules/max-nesting-depth/__tests__/index.js (834 MB heap size) PASS lib/rules/media-feature-range-operator-space-after/__tests__/index.js (858 MB heap size) PASS lib/rules/at-rule-semicolon-space-before/__tests__/index.js (868 MB heap size) PASS lib/rules/declaration-property-unit-blacklist/__tests__/index.js (880 MB heap size) PASS lib/rules/media-feature-range-operator-space-before/__tests__/index.js (903 MB heap size) PASS lib/rules/media-feature-name-whitelist/__tests__/index.js (913 MB heap size) PASS lib/rules/at-rule-no-unknown/__tests__/index.js (934 MB heap size) PASS lib/rules/declaration-colon-space-before/__tests__/index.js (211 MB heap size) PASS lib/rules/indentation/__tests__/comments.js (230 MB heap size) PASS lib/rules/no-unknown-animations/__tests__/index.js (246 MB heap size) PASS lib/rules/media-feature-name-blacklist/__tests__/index.js (257 MB heap size) PASS lib/rules/at-rule-semicolon-newline-after/__tests__/index.js (277 MB heap size) PASS lib/rules/declaration-block-trailing-semicolon/__tests__/index.js (285 MB heap size) PASS lib/rules/declaration-block-no-redundant-longhand-properties/__tests__/index.js (304 MB heap size) PASS lib/rules/declaration-colon-newline-after/__tests__/index.js (312 MB heap size) PASS lib/rules/function-whitelist/__tests__/index.js (333 MB heap size) PASS lib/rules/declaration-bang-space-after/__tests__/index.js (341 MB heap size) PASS lib/rules/selector-attribute-operator-whitelist/__tests__/index.js (358 MB heap size) PASS lib/rules/selector-descendant-combinator-no-non-space/__tests__/index.js (326 MB heap size) PASS lib/rules/declaration-bang-space-before/__tests__/index.js (344 MB heap size) PASS lib/rules/declaration-property-value-blacklist/__tests__/index.js (364 MB heap size) PASS lib/rules/media-feature-colon-space-after/__tests__/index.js (376 MB heap size) PASS lib/__tests__/plugins.test.js (386 MB heap size) PASS lib/rules/custom-media-pattern/__tests__/index.js (405 MB heap size) PASS lib/rules/function-url-no-scheme-relative/__tests__/index.js (424 MB heap size) PASS lib/rules/selector-pseudo-class-blacklist/__tests__/index.js (431 MB heap size) PASS lib/rules/font-family-no-missing-generic-family-keyword/__tests__/index.js (449 MB heap size) PASS lib/rules/declaration-block-single-line-max-declarations/__tests__/index.js (466 MB heap size) PASS lib/rules/selector-attribute-operator-blacklist/__tests__/index.js (471 MB heap size) PASS lib/rules/no-duplicate-at-import-rules/__tests__/index.js (488 MB heap size) PASS lib/rules/selector-no-vendor-prefix/__tests__/index.js (504 MB heap size) PASS lib/rules/at-rule-blacklist/__tests__/index.js (523 MB heap size) PASS lib/rules/declaration-block-no-shorthand-property-overrides/__tests__/index.js (528 MB heap size) PASS lib/__tests__/processors.test.js (545 MB heap size) PASS lib/rules/property-no-vendor-prefix/__tests__/index.js (562 MB heap size) PASS lib/rules/color-no-invalid-hex/__tests__/index.js (524 MB heap size) PASS lib/rules/color-no-hex/__tests__/index.js (528 MB heap size) PASS lib/rules/indentation/__tests__/html.js (543 MB heap size) PASS lib/rules/at-rule-whitelist/__tests__/index.js (560 MB heap size) PASS lib/rules/custom-property-pattern/__tests__/index.js (576 MB heap size) PASS lib/__tests__/stylelintignore-test/stylelintignore.test.js (587 MB heap size) PASS lib/__tests__/integration.test.js (601 MB heap size) PASS lib/rules/no-empty-source/__tests__/index.js (615 MB heap size) PASS lib/rules/block-no-empty/__tests__/index.js (632 MB heap size) PASS lib/rules/keyframe-declaration-no-important/__tests__/index.js (646 MB heap size) PASS lib/rules/media-feature-name-no-vendor-prefix/__tests__/index.js (659 MB heap size) PASS lib/rules/declaration-property-value-whitelist/__tests__/index.js (672 MB heap size) PASS lib/rules/comment-no-empty/__tests__/index.js (687 MB heap size) PASS lib/__tests__/createLinter.test.js (697 MB heap size) PASS lib/rules/string-no-newline/__tests__/index.js (708 MB heap size) PASS lib/utils/__tests__/nodeContextLookup.test.js (718 MB heap size) PASS lib/__tests__/standalone-needlessDisables.test.js (730 MB heap size) PASS lib/__tests__/ignoreDisables.test.js (741 MB heap size) PASS lib/utils/__tests__/isStandardSyntaxUrl.test.js (758 MB heap size) PASS lib/utils/__tests__/isStandardSyntaxRule.test.js (772 MB heap size) PASS lib/__tests__/postcssPlugin.test.js (783 MB heap size) PASS lib/rules/declaration-no-important/__tests__/index.js (806 MB heap size) PASS lib/__tests__/disableRanges.test.js (811 MB heap size) PASS lib/rules/at-rule-no-vendor-prefix/__tests__/index.js (823 MB heap size) PASS lib/utils/__tests__/isStandardSyntaxTypeSelector.test.js (835 MB heap size) PASS lib/__tests__/extends.test.js (859 MB heap size) PASS lib/utils/__tests__/validateOptions.test.js (865 MB heap size) PASS lib/__tests__/normalizeRuleSettings-integration.test.js (694 MB heap size) PASS lib/utils/__tests__/isStandardSyntaxMediaFeatureName.test.js (715 MB heap size) PASS lib/__tests__/normalizeRuleSettings.test.js (726 MB heap size) PASS lib/utils/__tests__/addEmptyLineBefore.test.js (736 MB heap size) PASS lib/utils/__tests__/validateObjectWithStringArrayProps.test.js (744 MB heap size) PASS lib/utils/__tests__/blurFunctionArguments.test.js (764 MB heap size) PASS lib/utils/__tests__/report.test.js (775 MB heap size) PASS lib/__tests__/message.test.js (784 MB heap size) PASS lib/__tests__/formatters.test.js (804 MB heap size) PASS lib/utils/__tests__/isStandardSyntaxDeclaration.test.js (815 MB heap size) PASS lib/utils/__tests__/isBlocklessAtRuleAfterSameNameBlocklessAtRule.test.js (825 MB heap size) PASS lib/__tests__/standalone-formatter.test.js (833 MB heap size) PASS lib/utils/__tests__/findListStyleType.test.js (844 MB heap size) PASS lib/utils/__tests__/isAfterComment.test.js (865 MB heap size) PASS lib/testUtils/__tests__/mergeTestDescriptions.test.js (873 MB heap size) PASS lib/utils/__tests__/blurInterpolation.test.js (881 MB heap size) PASS lib/utils/__tests__/isValidHex.test.js (902 MB heap size) PASS lib/utils/__tests__/findFontFamily.test.js (913 MB heap size) PASS lib/testUtils/__tests__/createRuleTester.test.js (922 MB heap size) PASS lib/utils/__tests__/isStandardSyntaxAtRule.test.js (933 MB heap size) PASS lib/utils/__tests__/isSingleLineString.test.js (953 MB heap size) PASS lib/utils/__tests__/functionArgumentsSearch.test.js (961 MB heap size) PASS lib/utils/__tests__/isStandardSyntaxSelector.test.js (972 MB heap size) PASS lib/utils/__tests__/blurComments.test.js (993 MB heap size) PASS lib/utils/__tests__/optionsMatches.test.js (1001 MB heap size) PASS lib/utils/__tests__/isCounterIncrementCustomIdentValue.test.js (1009 MB heap size) PASS lib/utils/__tests__/isStandardSyntaxValue.test.js (1018 MB heap size) PASS lib/utils/__tests__/isKeyframeRule.test.js (1039 MB heap size) PASS lib/utils/__tests__/isStandardSyntaxFunction.test.js (1047 MB heap size) PASS lib/utils/__tests__/isSharedLineComment.test.js (836 MB heap size) PASS lib/utils/__tests__/isStandardSyntaxMediaFeature.test.js (845 MB heap size) PASS lib/utils/__tests__/getSchemeFromUrl.test.js (853 MB heap size) PASS lib/utils/__tests__/beforeBlockString.test.js (875 MB heap size) PASS lib/utils/__tests__/isBlocklessAtRuleAfterBlocklessAtRule.test.js (883 MB heap size) PASS lib/utils/__tests__/matchesStringOrRegExp.test.js (893 MB heap size) PASS lib/utils/__tests__/removeEmptyLineBefore.test.js (903 MB heap size) PASS lib/utils/__tests__/checkAgainstRule.test.js (924 MB heap size) PASS lib/utils/__tests__/getUnitFromValueNode.test.js (934 MB heap size) PASS lib/utils/__tests__/isFirstNested.test.js (943 MB heap size) PASS lib/utils/__tests__/getPreviousNonSharedLineCommentNode.test.js (952 MB heap size) PASS lib/utils/__tests__/atRuleParamIndex.test.js (972 MB heap size) PASS lib/__tests__/standalone-quiet.test.js (979 MB heap size) PASS lib/utils/__tests__/isKeyframeSelector.test.js (988 MB heap size) PASS lib/utils/__tests__/isCustomPropertySet.test.js (1008 MB heap size) PASS lib/__tests__/standalone-deprecations.test.js (1015 MB heap size) PASS lib/utils/__tests__/isCustomElement.test.js (1025 MB heap size) PASS lib/utils/__tests__/hasBlock.test.js (1047 MB heap size) PASS lib/utils/__tests__/getNextNonSharedLineCommentNode.test.js (1055 MB heap size) PASS lib/utils/__tests__/findAnimationName.test.js (1064 MB heap size) PASS lib/utils/__tests__/blockString.test.js (1084 MB heap size) PASS lib/__tests__/defaultSeverity.test.js (1091 MB heap size) PASS lib/utils/__tests__/hasEmptyBlock.test.js (1100 MB heap size) PASS lib/utils/__tests__/isStandardSyntaxProperty.test.js (795 MB heap size) PASS lib/utils/__tests__/isCustomProperty.test.js (802 MB heap size) PASS lib/utils/__tests__/isNumbery.test.js (822 MB heap size) PASS lib/__tests__/standalone-parseErrors.test.js (829 MB heap size) PASS lib/utils/__tests__/hasInterpolation.test.js (838 MB heap size) PASS lib/utils/__tests__/containsString.test.js (859 MB heap size) PASS lib/formatters/__tests__/jsonFormatter.test.js (866 MB heap size) PASS lib/utils/__tests__/isCustomSelector.test.js (873 MB heap size) PASS lib/utils/__tests__/isAfterSingleLineComment.test.js (894 MB heap size) PASS lib/utils/__tests__/declarationValueIndex.test.js (901 MB heap size) PASS lib/utils/__tests__/ruleMessages.test.js (909 MB heap size) PASS lib/utils/__tests__/isValidFontSize.test.js (929 MB heap size) PASS lib/utils/__tests__/isRangeContextMediaFeature.test.js (936 MB heap size) PASS lib/utils/__tests__/isCounterResetCustomIdentValue.test.js (957 MB heap size) PASS lib/utils/__tests__/nextNonCommentNode.test.js (965 MB heap size) PASS lib/utils/__tests__/isVariable.test.js (973 MB heap size) PASS lib/utils/__tests__/isCustomMediaQuery.test.js (994 MB heap size) PASS lib/utils/__tests__/hasEmptyLine.test.js (1002 MB heap size) PASS lib/utils/__tests__/isOnlyWhitespace.test.js (1009 MB heap size) PASS lib/utils/__tests__/findAtRuleContext.test.js (1030 MB heap size) Test Suites: 270 passed, 270 total Tests: 13254 passed, 13254 total Snapshots: 6 passed, 6 total Time: 112.732s Ran all test suites. ```

Comparing heap size in the old and new version I see that old version clears heap more often and more successful.
hudochenkov commented 6 years ago

I thought the problem could be because of our code. We run all our tests via custom testRule(), which is included in setupFiles configuration. But apparently, it's not our code problem. I replaced our setup file and testRule() with a simple script:

'use strict';

global.testRule = () => {
  test('test', () => {
    expect(true).toBe(true);
  });
};

Even with this script --runInBand failed because of out of memory.

All of this is on Node.js 8.9.1 and npm 5.5.1. macOS 10.12.6 on MacBook Pro with 16GB memory.

OverseePublic commented 6 years ago

Could the contributors / authors help us identify whether this is a bug or not?

Thanks.

mjesun commented 6 years ago

Whenever you run with -i, all tests are executed from the main process. This means that the memory consumption will grow as much as it can within one single process. On the other hand, when using multiple processes, the memory consumption is spread through them, thus reducing the memory per process used.

To get more accurate results, you should make sure that the GC is run after each test. Jest already does that, but it needs to be explicitly exposed. You can do that as a fast test by adding --expose-gc to the node_modules/.bin/jest shebang line.

OverseePublic commented 6 years ago

Hmm, even with the --expose-gc I get the increasing heap size. But the heap size is smaller. Maybe it's getting cleared more often?

#!/usr/bin/env node --expose-gc

> jest -i --silent --logHeapUsage

 PASS  __tests__/component.test.10000.js (203 MB heap size)
 PASS  __tests__/component.test.c.10000.js (364 MB heap size)
 PASS  __tests__/component.test.b.10000.js (514 MB heap size)

Test Suites: 3 passed, 3 total
Tests:       30000 passed, 30000 total
Snapshots:   0 total
Time:        12.667s
OverseePublic commented 6 years ago

I also tested exposing and forcing global.gc() in afterEach hook in setupTestFrameworkScriptFile and it hangs probably due to extra global.gc() call I added.

Code is in branch force-clean and the command is npm run test:i-gc

mjesun commented 6 years ago

If the GC is exposed, it will automatically be ran after each test (see here). Running yourself the GC on the afterEach should have no effect, as long as you are using --logHeapUsage as well.

The memory growth you see from test to test is due to several reasons:

Hope that solves the mistery! 🙂

OverseePublic commented 6 years ago

Gotcha! Thanks. I wondered whether I incorrectly setup the test. I will dig in and see if I can be a contribution :)

Thanks for the help / comments. Appreciated!

rickhanlonii commented 6 years ago

@hudochenkov I confirmed that the above PR fixes the leak in stylelint for Jest 22

Before

After

That PR also fixes the --detectLeaks argument. I ran your tests with this an I see a number of userland leaks you'll want to look into once this lands:

rickhanlonii commented 6 years ago

I think this can be closed:

hudochenkov commented 6 years ago

@rickhanlonii thank you for your help!

github-actions[bot] commented 3 years ago

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs. Please note this issue tracker is not a help forum. We recommend using StackOverflow or our discord channel for questions.