Aurelia/Karma/伊斯坦布尔不能读取未定义的属性“skip”和“decl”，但会产生友好关系。

Question

上周，我用Mocha，Sinon和Karma为我的Aurelia应用程序编写了很多测试。现在是为代码覆盖设置伊斯坦布尔的时候了。业力完成后，他的任务将在伊斯坦布尔产生覆盖，并在控制台和HTML关系文件中抛出一个错误。

25 10 2019 09:41:56.600:ERROR [coverage]: TypeError: Cannot read property 'skip' of undefined
    at C:\Projecten\*HIDDEN*\dev\*HIDDEN*\*HIDDEN*\node_modules\istanbul\lib\object-utils.js:110:43
    at Array.forEach (<anonymous>)
    at computeSimpleTotals (C:\Projecten\*HIDDEN*\dev\*HIDDEN*\*HIDDEN*\node_modules\istanbul\lib\object-utils.js:108:28)
    at Object.summarizeFileCoverage (C:\Projecten\*HIDDEN*\dev\*HIDDEN*\*HIDDEN*\node_modules\istanbul\lib\object-utils.js:215:25)
    at C:\Projecten\*HIDDEN*\dev\*HIDDEN*\*HIDDEN*\node_modules\istanbul\lib\report\html.js:558:58
    at Array.forEach (<anonymous>)
    at HtmlReport.writeReport (C:\Projecten\*HIDDEN*\dev\*HIDDEN*\*HIDDEN*\node_modules\istanbul\lib\report\html.js:557:27)
    at writeReport (C:\Projecten\*HIDDEN*\dev\*HIDDEN*\*HIDDEN*\node_modules\karma-coverage\lib\reporter.js:68:16)
    at C:\Projecten\*HIDDEN*\dev\*HIDDEN*\*HIDDEN*\node_modules\karma-coverage\lib\reporter.js:297:11
    at fs.stat (C:\Projecten\*HIDDEN*\dev\*HIDDEN*\*HIDDEN*\node_modules\karma\lib\helper.js:148:7)
    at callback (C:\Projecten\*HIDDEN*\dev\*HIDDEN*\*HIDDEN*\node_modules\graceful-fs\polyfills.js:295:20)
    at FSReqWrap.oncomplete (fs.js:153:5)
Karma has exited with 0

HTML页面

Cannot read property 'decl' of undefined
TypeError: Cannot read property 'decl' of undefined
    at Object.keys.forEach.fName (C:\Projecten\*HIDDEN*\dev\*HIDDEN*\node_modules\istanbul-reports\lib\html\annotator.js:92:31)
    at Array.forEach ()
    at annotateFunctions (C:\Projecten\*HIDDEN*\dev\*HIDDEN*\node_modules\istanbul-reports\lib\html\annotator.js:88:26)
    at Object.annotateSourceCode (C:\Projecten\*HIDDEN*\dev\*HIDDEN*\node_modules\istanbul-reports\lib\html\annotator.js:238:9)
    at HtmlReport.onDetail (C:\Projecten\*HIDDEN*\dev\*HIDDEN*\node_modules\istanbul-reports\lib\html\index.js:265:27)
    at Visitor.(anonymous function) [as onDetail] (C:\Projecten\*HIDDEN*\dev\*HIDDEN*\node_modules\istanbul-lib-report\lib\tree.js:34:30)
    at ReportNode.Node.visit (C:\Projecten\*HIDDEN*\dev\*HIDDEN*\node_modules\istanbul-lib-report\lib\tree.js:114:17)
    at getChildren.forEach.child (C:\Projecten\*HIDDEN*\dev\*HIDDEN*\node_modules\istanbul-lib-report\lib\tree.js:118:15)
    at Array.forEach ()
    at ReportNode.Node.visit (C:\Projecten\*HIDDEN*\dev\*HIDDEN*\node_modules\istanbul-lib-report\lib\tree.js:117:24)
    at getChildren.forEach.child (C:\Projecten\*HIDDEN*\dev\*HIDDEN*\node_modules\istanbul-lib-report\lib\tree.js:118:15)
    at Array.forEach ()
    at ReportNode.Node.visit (C:\Projecten\*HIDDEN*\dev\*HIDDEN*\node_modules\istanbul-lib-report\lib\tree.js:117:24)
    at Tree.visit (C:\Projecten\*HIDDEN*\dev\*HIDDEN*\node_modules\istanbul-lib-report\lib\tree.js:150:20)
    at Object.keys.forEach.name (C:\Projecten\*HIDDEN*\dev\*HIDDEN*\node_modules\istanbul-api\lib\reporter.js:94:18)
    at Array.forEach ()

这是我的Karma配置：

const path = require('path');

module.exports = function (config) {
    config.set({
        basePath: path.dirname(__dirname),

        frameworks: ['mocha', 'chai', 'sinon', 'karma-typescript'],

        'plugins': [
            require('karma-mocha'),
            require('karma-sinon'),
            require('karma-chai'),
            require('karma-webpack'),
            require('karma-mocha-reporter'), 
            require('karma-chrome-launcher'),
            require('karma-junit-reporter'),
            require('karma-typescript'),
            require('karma-phantomjs-launcher'),
            require('karma-coverage'),
            require('karma-coverage-istanbul-reporter'),
            require('karma-remap-istanbul'),
            require('karma-istanbul-threshold')
        ],

        preprocessors: {
            'test/karma-bundle.js': ['webpack'],
            'ClientApp/**/*.ts': ['webpack', 'coverage']
        },
        webpack: require('../webpack.unit.config')({ env: 'production', prod: false }),

        reporters: ['junit', 'mocha', 'progress', 'coverage', 'coverage-istanbul'],

        coverageIstanbulReporter: {
            reports: ['html'],
            dir: path.resolve(__dirname, 'coverage-karma'),
            includeAllSources: false,
            fixWebpackSourcePaths: false,
            combineBrowserReports: false
        },

        webpackServer: { noInfo: true }, 
    });
}

我从配置文件中删除了不必要的代码。

我在Webpack配置中添加了以下规则：

...
{
    test: /\.(ts)/,
    options: {
        esModules: true,
        produceSourceMap: true,
        debug: true
    },
    include: path.resolve(srcDir),
    loader:'istanbul-instrumenter-loader'
},
....

Answer 1

所有的错误都解决了。关于“decl”的第一个错误来自于代码中的@inject。通过删除@inject，解决了问题。

重新安装我的node.js后，“TypeError:无法读取”未定义的“错误”的“跳过”属性消失了。