danvk / source-map-explorer / 298

97%

Pull #145

travis-ci

Implement code coverage heat map (#145)

- [ESLint] Require empty line after `const`/`let`
- [ESLint] Enable `object-shorthand`
- Move code coverage related methods to `coverage.ts`
- Add `CannotOpenCoverageFile` and `NoCoverageMatches` errors
- Replace `FileSizeMap` with `FileData` so that additional data can be stored along with mapping size
- Implement mapping coverages to bundles by comparing coverage URL with bundle name.
- Convert coverage ranges (one-line) to per line range to ease matching with mapping ranges
- When calculating file sizes first get mapping ranges with sources, then merge consecutive ranges and then calculate bytes
- Calculate cover bytes size
- Fix bytes calculation - get bytes length from source ranges' string rather than columns count. One column can have byte length 4 bytes (e.g. 🍰)
- Move mapping reference EOL check before invalid mapping column check
- Add `rewiremock` to mock dependencies during tests
- Add `mappedBytes` value to result

167 of 183 branches covered (91.26%)

Branch coverage included in aggregate %.

170 of 170 new or added lines in 7 files covered. (100.0%)

341 of 365 relevant lines covered (93.42%)

183.1 hits per line