Testing istanbul html-spa

instructions.md

Generate the coverage files for istanbul:

1. run npm i
2. run npm i git+https://github.com/coreyfarrell/nyc.git#node8 -D
3. change "locv" reporter to "html-spa"
4. run npm link packages/istanbul-reports
5. Unless istanbuljs/istanbuljs#428 has been merged, go to packages/istanbul-reports/lib/none/index.js and change the implementation to

class NoneReport extends ReportBase {
    constructor() {
        super();
    }
}

6. Fix the merge reports to work - edit monorepo-merge-reports.js to have the following e.g. an explicit path to nyc

glob.sync('packages/*/.nyc_output').forEach(nycOutput => {
    const { status, stderr, stdout, output } = spawnSync(
        'node',
        [
            'node_modules/nyc/bin/nyc.js',
            'merge',

6. test with npm test

Next, to test html-spa changes:

1. inside packages/istanbul-reports run npm run prepare
2. At this point, re-run the report with npm test on the root, or if you just changed the css/js copy the html-spa folder to the generated folder.