activate coverage-clover logging at phpunit config to get clover.xml which read by coveralls.phar

[samsonasik]

looking at previous travis build, the coveralls command got the following error:

$ travis_retry php tests/bin/coveralls.phar
                                                                                 
  [Symfony\Component\Config\Definition\Exception\InvalidConfigurationException]  
  coverage_clover XML file is not readable                                       
                                                                                 
coveralls:v1:jobs [-c|--config [CONFIG]] [--dry-run] [--exclude-no-stmt] [-e|--env [ENV]] [-x|--coverage_clover COVERAGE_CLOVER] [-r|--root_dir [ROOT_DIR]]
The command "php tests/bin/coveralls.phar" failed. Retrying, 2 of 3.
                                                                                 
  [Symfony\Component\Config\Definition\Exception\InvalidConfigurationException]  
  coverage_clover XML file is not readable                                       
                                                                                 
coveralls:v1:jobs [-c|--config [CONFIG]] [--dry-run] [--exclude-no-stmt] [-e|--env [ENV]] [-x|--coverage_clover COVERAGE_CLOVER] [-r|--root_dir [ROOT_DIR]]
The command "php tests/bin/coveralls.phar" failed. Retrying, 3 of 3.
                                                                                 
  [Symfony\Component\Config\Definition\Exception\InvalidConfigurationException]  
  coverage_clover XML file is not readable                                       
                                                                                 
coveralls:v1:jobs [-c|--config [CONFIG]] [--dry-run] [--exclude-no-stmt] [-e|--env [ENV]] [-x|--coverage_clover COVERAGE_CLOVER] [-r|--root_dir [ROOT_DIR]]
The command "php tests/bin/coveralls.phar" failed 3 times.

It try to read build/logs/clover.xml which not exists, which should be generated when phpunit run

[jim-parry]

@lonnieezell I am not sure why the clover.xml generation is commented out to begin with.
My phpunit.xml includes that, as well as logging to create the HTML code coverage report.

[samsonasik]

looking at latest travis build https://travis-ci.org/bcit-ci/CodeIgniter4/jobs/381923964 , we now have generated coveralls data

[lonnieezell]

@jim-parry Looks like an oops on my part. Thought I did that in my local one.