jjangga0214 / nyc-issue-1249-ts

Repro for [istanbuljs/nyc#1249](https://github.com/istanbuljs/nyc/issues/1249), with ts-jest.

nyc-issue-1249-ts

This repo is repro for istanbuljs/nyc#1249, only purely with jest and nyc withjest-ts(for typescript).

steps

npm install
# measure coverage and generate json and html report by jest
npm run coverage
# open browser and show html report generated by jest
npm run showReportByJest
# generate html report by nyc from coverage/coverage-final.json
npm run generateReportByNyc
# open browser and show html report generated by nyc
npm run showReportByNyc

expected result

html reports by jest and nyc are both valid and identical. Therefore npm run showReportByJest and npm run showReportByNyc should show the exact same html report.

real result executed on personal machine

It's same as expected result on ubuntu 19.04, 64 bits, node 12.6.0, npm 6.13.4.