Clean up phpunit.xml (#78)

Author: tangrufus

phpunit.xml

@@ -1,22 +1,18 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/12.4/phpunit.xsd"
+         xsi:noNamespaceSchemaLocation="vendor/phpunit/phpunit/phpunit.xsd"
          bootstrap="vendor/autoload.php"
          colors="true"
 >
     <testsuites>
         <testsuite name="Test Suite">
-            <directory suffix="Test.php">./tests</directory>
+            <directory>./tests</directory>
         </testsuite>
     </testsuites>
     <source>
         <include>
-            <directory suffix=".php">./src</directory>
+            <directory>./bin</directory>
+            <directory>./src</directory>
         </include>
     </source>
-
-    <php>
-        <!-- Width of the terminal -->
-        <env name="COLUMNS" value="120" force="true"/>
-    </php>
 </phpunit>