Coverage fails when run with OxProject · istanbuljs/nyc#1035

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描述

Hello everybody, When generating an html coverage report with nyc report --reporter=html I am getting the html files in a folder, but trying to open a specific file, the following error is occured:

Cannot read property 'start' of undefined
TypeError: Cannot read property 'start' of undefined
    at /Users/ognyanchikov/Etherlime/etherlime/node_modules/nyc/node_modules/istanbul-reports/lib/html/annotator.js:92:34
    at Array.forEach ()
    at annotateFunctions (/Users/ognyanchikov/Etherlime/etherlime/node_modules/nyc/node_modules/istanbul-reports/lib/html/annotator.js:88:26)
    at Object.annotateSourceCode (/Users/ognyanchikov/Etherlime/etherlime/node_modules/nyc/node_modules/istanbul-reports/lib/html/annotator.js:239:9)
    at HtmlReport.onDetail (/Users/ognyanchikov/Etherlime/etherlime/node_modules/nyc/node_modules/istanbul-reports/lib/html/index.js:269:23)
    at Visitor.(anonymous function) [as onDetail] (/Users/ognyanchikov/Etherlime/etherlime/node_modules/nyc/node_modules/istanbul-lib-report/lib/tree.js:34:30)
    at ReportNode.Node.visit (/Users/ognyanchikov/Etherlime/etherlime/node_modules/nyc/node_modules/istanbul-lib-report/lib/tree.js:121:17)
    at /Users/ognyanchikov/Etherlime/etherlime/node_modules/nyc/node_modules/istanbul-lib-report/lib/tree.js:114:23
    at Array.forEach ()
    at visitChildren (/Users/ognyanchikov/Etherlime/etherlime/node_modules/nyc/node_modules/istanbul-lib-report/lib/tree.js:113:32)
    at ReportNode.Node.visit (/Users/ognyanchikov/Etherlime/etherlime/node_modules/nyc/node_modules/istanbul-lib-report/lib/tree.js:124:5)
    at Tree.visit (/Users/ognyanchikov/Etherlime/etherlime/node_modules/nyc/node_modules/istanbul-lib-report/lib/tree.js:155:20)
    at reporter.forEach (/Users/ognyanchikov/Etherlime/etherlime/node_modules/nyc/index.js:454:10)
    at Array.forEach ()
    at NYC.report (/Users/ognyanchikov/Etherlime/etherlime/node_modules/nyc/index.js:453:17)
    at showCoverageResults (/Users/ognyanchikov/Etherlime/etherlime/cli-commands/etherlime-test/etherlime-coverage.js:206:13)
    at Timeout.setTimeout (/Users/ognyanchikov/Etherlime/etherlime/cli-commands/etherlime-test/etherlime-coverage.js:73:9)
    at ontimeout (timers.js:482:11)
    at tryOnTimeout (timers.js:317:5)
    at Timer.listOnTimeout (timers.js:277:5

The text table report works and shows results, but the HTML is broken.

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技術棧: javascriptnodejs
領域: clitesting
議題類型: bug
難度: 3
預計時間: 1-3 hours
活動狀態: stale
清晰度: clear
前置要求: Node.jsJavaScriptnyc basics
新手友善度: 45
研究方向: The error occurs in annotator.js at line 92 in annotateFunctions where 'start' is undefined. Investigate why the function metadata lacks this property. Check the data flow from nyc to istanbul reports, focusing on how coverage maps are built. Review issue comments for proposed fixes or additional context. Consider adding a null check or ensuring the function object is complete before annotation.