我应该用WCT-istanbub替换wct-istanbul，以估算测试覆盖的聚合物网络组分的数量

Question

我的问题和How to measure common coverage for Polymer components + .js files?之间有一些相似之处。尽管如此，它被接受为“拆分为.js文件并将其包含在组件中”，以便使用wct-istanbul，我的所有Web组件和测试都在.html文件中（javascript在每个.html文件中）。

我的直接问题是：我是否仍然可以使用wct-istambul来检查我的代码在测试中的覆盖范围？如果是这样，下面描述的配置有什么问题？如果没有，wct-istanbub是否计划用聚合物项目取代wct-istanbul？

的package.json

"polyserve": "^0.18.0",
"web-component-tester": "^6.0.0",
"web-component-tester-istanbul": "^0.10.0",

...

wct.conf.js

var path = require('path');

var ret = {
    'suites': ['test'],
    'webserver': {
        'pathMappings': []
    },
    'plugins': {
        'local': {
            'browsers': ['chrome']
        },
        'sauce': {
            'disabled': true
        },
        "istanbul": {
            "dir": "./coverage",
            "reporters": ["text-summary", "lcov"],
            "include": [
                "/*.html"
            ],
            "exclude": [
            ],
            thresholds: {
              global: {
                statements: 100
              }
            }
        }
    }
};

var mapping = {};
var rootPath = (__dirname).split(path.sep).slice(-1)[0];

mapping['/components/' + rootPath + '/bower_components'] = 'bower_components';

ret.webserver.pathMappings.push(mapping);

module.exports = ret;

好吧，我尝试了WCT-istanbub（https://github.com/Bubbit/wct-istanbub），它接缝是一个临时的解决方法（Code coverage of Polymer Application with WCT），它有效。

wct.conf.js

        "istanbub": {
            "dir": "./coverage",
            "reporters": ["text-summary", "lcov"],
            "include": [
                "**/*.html"
            ],
            "exclude": [
              "**/test/**",
              "*/*.js"
            ],
            thresholds: {
              global: {
                statements: 100
              }
            }
        }
...

结果是 ...     chrome 66 RESPONSE退出（）     chrome 66 BrowserRunner完成     测试结束取得了巨大成功

chrome 66 (2/0/0)

=============================== Coverage summary ===============================
Statements   : 21.18% ( 2011/9495 )
Branches     : 15.15% ( 933/6160 )
Functions    : 18.08% ( 367/2030 )
Lines        : 21.14% ( 2001/9464 )
================================================================================
Coverage for statements (21.18%) does not meet configured threshold (100%)




Error: Coverage failed