`Codecov` output is different from `lcov`

Support Bug Fixes
1

Description

The output of codecov: link is different from the Lcov output for the same file (gcov 9.3.0 is used on both): link.
The file itself: link.
The gcov file: link

Repository

Only 4 links per post, so:
github.com->Cvelth->argument_parser

Steps to Reproduce

  1. run codecov
  2. run lcov
  3. compare them

Expected behavior: Similar results

Actual behavior: 10% coverage vs 55%

Flakiness? All the time.

Versions

Windows 10 + WSL Ubuntu 18.04
GCC 9.3.0 (with GCOV)
LCOV 1.14-6-g40580cd

2

Hmmm, this is strange. Unfortunately, it seems like the coverage report we receive is different from the one generated in your second link. As an example, we receive this from CircleCI https://codecov.io/gh/Cvelth/argument_parser/commit/267c8efcc1901839a0c59f108a8afa049b845c87/build

image
image2500×1146 195 KB

Raw report: https://codecov.io/codecov/v4/raw/2020-04-28/0DCFB4EA8A9DDE8A022AAA2556F2C713/267c8efcc1901839a0c59f108a8afa049b845c87/3832b657-b09b-466a-bd0e-ce27bf728010.txt

You’ll see that it starts at line 48, but the file you linked shows up at 38 first

image
image2554×1038 282 KB

Somewhere when you are calling codecov we are receiving a different file.

3

Thanks for the answer, but I’ve already solved the issue with a different method: it seems like inconsistency was caused by the analyzed file being a header. Writing a simple script to combine all the sources into a single cpp and measuring code coverage on it resolved any problems.

1 Like
4

Amazing! Glad that it worked out for you.