Code Coverage Report is Empty even will valid coverage/tmp/xxxxx.json generated... about c8

[bcoe]

👋 hey @tonysoft sorry for the slow response, I got to the point near the end of this year where I was literally 2000+ tickets behind in open-source.

This is odd, the raw output itself looks reasonable; perhaps you could create a testing repo with a minimal reproduction for us to dig into.

[tonysoft]

No worries Benjamin... I will isolate this to a simple test case and create a repo... Don't apologize as you are doing the Community a great Service... No hurry though, I'm actually building an interactive Coverage Explorer into my Presentation App. I'm fleshing it out right now... When I'm done, I'll create a Video of it and it may be of interest to the Community. Sometimes when you hit an obstacle, it points you in a direction you should have thought of anyway. Onward... Tony

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On Sat, Dec 29, 2018 at 8:29 AM Benjamin E. Coe ***@***.***> wrote: 👋 hey @tonysoft <https://github.com/tonysoft> sorry for the slow response, I got to the point near the end of this year where I was literally 2000+ tickets behind in open-source. This is odd, the raw output itself looks reasonable; perhaps you could create a testing repo with a minimal reproduction for us to dig into. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#53 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AC9qL6SNPt_dimtXgttjUoQNQXHmfvJmks5u95hNgaJpZM4ZjPzF> .

[shinnn]

I will isolate this to a simple test case and create a repo

Friendly ping @tonysoft

[bcoe]

@tonysoft closing this as inactive, please feel free to reopen if you're able to provide a repo demonstrating the issue.

There's been quite a bit of work on c8 over the past year, so you might also try the latest version.

[kevinbarabash]

I'm running into the same issue. The text reporter works fine, but the html reporter generates a .json file instead of html output. I'm using version 7.1.0 of c8.

[kevinbarabash]

I'm also getting some other errors in the output, e.g.

file: /Users/kevinbarabash/zippers/output/Test.Spec.Summary/index.js error: Error: Error parsing mappings (code 1): the mappings contained a negative line, column, source index, or name index
    at BasicSourceMapConsumer._parseMappings (/Users/kevinbarabash/zippers/node_modules/v8-to-istanbul/node_modules/source-map/lib/source-map-consumer.js:360:13)
    at BasicSourceMapConsumer._getMappingsPtr (/Users/kevinbarabash/zippers/node_modules/v8-to-istanbul/node_modules/source-map/lib/source-map-consumer.js:315:12)
    at _wasm.withMappingCallback (/Users/kevinbarabash/zippers/node_modules/v8-to-istanbul/node_modules/source-map/lib/source-map-consumer.js:510:14)
    at Object.withMappingCallback (/Users/kevinbarabash/zippers/node_modules/v8-to-istanbul/node_modules/source-map/lib/wasm.js:95:11)
    at BasicSourceMapConsumer.originalPositionFor (/Users/kevinbarabash/zippers/node_modules/v8-to-istanbul/node_modules/source-map/lib/source-map-consumer.js:508:16)
    at originalPositionTryBoth (/Users/kevinbarabash/zippers/node_modules/v8-to-istanbul/lib/source.js:173:30)
    at CovSource.offsetToOriginalRelative (/Users/kevinbarabash/zippers/node_modules/v8-to-istanbul/lib/source.js:56:19)
    at V8ToIstanbul._maybeRemapStartColEndCol (/Users/kevinbarabash/zippers/node_modules/v8-to-istanbul/lib/v8-to-istanbul.js:167:84)
    at block.ranges.forEach (/Users/kevinbarabash/zippers/node_modules/v8-to-istanbul/lib/v8-to-istanbul.js:92:18)
    at Array.forEach (<anonymous>)

It's possible that these are interfering with c8's ability to generate the HTML report. I'm going to try to dig into the sourcemap issue sometime this week.

[kevinbarabash]

I recompiled my project without sourcemaps and I'm still running into the same issue with a .json file for output instead of HTML.