As the Travis CI Linux distributions provide different PHPUnit versions when testing against different PHP versions, using PHPUnit from composer gives us control over the PHPUnit features available.
It is currently the source of failed test runs as many deprecated methods have been removed from PHPUnit 6.
As the Travis CI Linux distributions provide different PHPUnit versions when testing against different PHP versions, using PHPUnit from composer gives us control over the PHPUnit features available.
It is currently the source of failed test runs as many deprecated methods have been removed from PHPUnit 6.