Improve clarity of line and branch coverage format.

[joshuapinter]

• Put percentage first and then covered and total counts in brackets afterwards. Percentage is most critical at a quick glance.

• Put line and brnach coverage on separate lines.

Before

Coverage report generated for (1/10), (10/10), (2/10), (3/10), (4/10), (5/10), (6/10), (7/10), (8/10), (9/10) to /Users/me/Development/cntral/coverage. 8534 / 16083 LOC (53.06%) covered. 2225 / 4749 branches (46.85%) covered.

After

Now it shows in a clean format, including covered branches, total branches and percent of covered branches. Something like this:

Coverage report generated for (1/10), (10/10), (2/10), (3/10), (4/10), (5/10), (6/10), (7/10), (8/10), (9/10) to /Users/me/Development/cntral/coverage.
Line Coverage: 53.06% (8534 / 16083)
Branch Coverage: 46.85% (2225 / 4749)

When branch coverage is not enabled it simply omits that line, so it appears like this:

Coverage report generated for (1/10), (10/10), (2/10), (3/10), (4/10), (5/10), (6/10), (7/10), (8/10), (9/10) to /Users/me/Development/cntral/coverage.
Line Coverage: 53.06% (8534 / 16083)

[amatsuda]

I like this new format indeed. So let me merge this.

[joshuapinter]

@amatsuda 👏 🙏 Thank you. I totally forgot about this. :)

[noproblemwiththat]

For info, GitLab CI uses a regexp to extract the coverage percentage from simplecov output, and the above change breaks the previous regexp (as here) but once one knows that, it is fairly easy to fix.

No complaint about the change, just in case others are bitten by this 😄

[joshuapinter]

@noproblemwiththat Thanks for posting this and I appreciate you saying no complaint. :) I figured it would break something but I think it's worth it for the sake of clarity. Cheers.