Add output buffering spinner to colored testdox printer

[epdenouden]

The TestDox printer will buffer test result output when the execution has been changed by --order-by. When this happens the prettified printer will let the user know by showing a little spinner:

Quick way to see it at work, run: phpunit --testdox --order-by=random --testsuite end-to-end

To prevent visual noise the spinner will only appear when out of sequence results are detected by the colorized printer and hidden when it has caught up. No further configuration or changes needed.

That's it. :)

[codecov]

Codecov Report

Merging #3497 into master will decrease coverage by 0.02%.
The diff coverage is 71.42%.

@@             Coverage Diff              @@
##             master    #3497      +/-   ##
============================================
- Coverage      82.8%   82.77%   -0.03%     
- Complexity     3670     3680      +10     
============================================
  Files           144      144              
  Lines          9577     9598      +21     
============================================
+ Hits           7930     7945      +15     
- Misses         1647     1653       +6

Impacted Files	Coverage Δ	Complexity Δ
src/Util/TestDox/CliTestDoxPrinter.php	93.65% <50%> (-2.96%)	57 <4> (+4)
src/Util/TestDox/TestDoxPrinter.php	78.44% <84.61%> (+0.77%)	55 <6> (+6)	⬆️

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[hopeseekr]

I really dislike this spinner and testdox is my main mode.

[epdenouden]

I really dislike this spinner and testdox is my main mode.

Hi there @hopeseekr! You are not the only one, that's why an option to switch it off was added.

Try this:

./phpunit --testdox --no-interaction --order-by=reverse

and you will see nothing but the version header until test output can be flushed in the original order.