* Set PHP 7.2 as minimum version
* Update PHPUnit to 8 || 9
* Set Bionic environment in Travis config
* PHPUnit 8 requires void return in static methods
* PHPUnit 8 requires void return in static methods
* Fix curl exception message test
When I run "curl http://wrong_host.zxc" output is:
curl: (6) Could not resolve host: wrong_host.zxc
Maybe this message is different across versions.
Tested curl version:
curl 7.54.0 (x86_64-apple-darwin18.0) libcurl/7.54.0 LibreSSL/2.6.5 zlib/1.2.11 nghttp2/1.24.1
* Update assertions of deprecated assertInternalType
* Migrate to expectException method of PHPUnit 8
* Fix PHPCS Fixer errors
* Replace deprecated 'assertRegExp' assertion
* Exclude PHPUnit and php-cs-fixer cache
* Refresh samples
* Set root Travis CI environment to PHP 7.2.5
* Change to 7.3 as 7.2.27 is highest preinstalled
* Fix testWrongHost test
