execute tests in random order and be strict on failures

Author: Nielsvanpach

phpunit.xml.dist

@@ -11,6 +11,11 @@
     convertWarningsToExceptions="true"
     processIsolation="false"
     stopOnFailure="false"
+    executionOrder="random"
+    failOnWarning="true"
+    failOnRisky="true"
+    failOnEmptyTestSuite="true"
+    beStrictAboutOutputDuringTests="true"
     verbose="true"
 >
     <testsuites>