add local config files

composer.json

@@ -24,7 +24,7 @@
     "monolog/monolog": "^2.3"
   },
   "require-dev": {
-    "phpunit/phpunit": "~5.0"
+    "phpunit/phpunit": "~5.7"
   },
   "autoload": {
     "psr-4": {

phpunit.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd" bootstrap="vendor/autoload.php" backupGlobals="false" beStrictAboutCoversAnnotation="true" beStrictAboutOutputDuringTests="true" beStrictAboutTestsThatDoNotTestAnything="true" beStrictAboutTodoAnnotatedTests="true" verbose="true">
+  <coverage processUncoveredFiles="true">
+    <include>
+      <directory suffix=".php">src</directory>
+    </include>
+  </coverage>
+  <testsuite name="default">
+    <directory suffix="Test.php">tests</directory>
+  </testsuite>
+</phpunit>