Update PHPUnit configuration

phpunit.xml

@@ -5,14 +5,18 @@
  cacheDirectory=".phpunit.cache"
  executionOrder="depends,defects"
  beStrictAboutOutputDuringTests="true"
+ displayDetailsOnPhpunitDeprecations="true"
+ failOnPhpunitDeprecation="true"
+ failOnRisky="true"
+ failOnWarning="true"
  colors="true">
  <testsuites>
  <testsuite name="default">
  <directory>tests/tests</directory>
  </testsuite>
  </testsuites>
 
- <source>
+ <source restrictDeprecations="true" restrictNotices="true" restrictWarnings="true">
  <include>
  <directory>src</directory>
  </include>