Show time spent on code coverage report generation

[morozov]

Q	A
PHPUnit version	8.0.2

Depending on the size of the codebase, coverage report generation may take from sub-seconds to tens of minutes. For a test suite with sparse coverage (a lot of code, few tests), or selectively run tests, code coverage generation may take an order of magnitude longer than running the tests.

On a proprietary codebase I'm working on, a test run looks like the following:

-----8<-----

Time: 9.98 seconds, Memory: 140.26 MB

OK, but incomplete, skipped, or risky tests!
Tests: 2482, Assertions: 4214, Skipped: 24.

Generating code coverage report in HTML format ... done

Where it takes about 2 minutes between "Generating" and "done".

It would be nice if it looked like this:

Generating code coverage report in HTML format ... done (102 seconds taken).