diff --git a/src/Lunr/Halo/Tests/LegacyBaseTestTest.php b/src/Lunr/Halo/Tests/LegacyBaseTestTest.php
index c73ded10..44c8fbcc 100644
--- a/src/Lunr/Halo/Tests/LegacyBaseTestTest.php
+++ b/src/Lunr/Halo/Tests/LegacyBaseTestTest.php
@@ -18,7 +18,7 @@
  *
  * @covers Lunr\Halo\LegacyBaseTest
  */
-class LegacyBaseTestTest extends LegacyBaseTest
+abstract class LegacyBaseTestTest extends LegacyBaseTest
 {
 
     /**
diff --git a/src/Lunr/Halo/Tests/LunrBaseTestTest.php b/src/Lunr/Halo/Tests/LunrBaseTestTest.php
index 29a249b8..93ce344a 100644
--- a/src/Lunr/Halo/Tests/LunrBaseTestTest.php
+++ b/src/Lunr/Halo/Tests/LunrBaseTestTest.php
@@ -18,7 +18,7 @@
  *
  * @covers Lunr\Halo\LunrBaseTest
  */
-class LunrBaseTestTest extends LunrBaseTest
+abstract class LunrBaseTestTest extends LunrBaseTest
 {
 
     /**
diff --git a/tests/phpunit.xml b/tests/phpunit.xml
index 353e17ff..b70ea22a 100644
--- a/tests/phpunit.xml
+++ b/tests/phpunit.xml
@@ -15,10 +15,7 @@
     </php>
     <testsuites>
         <testsuite name="Halo">
-            <file>../src/Lunr/Halo/Tests/LegacyBaseTestReflectionTest.php</file>
-            <file>../src/Lunr/Halo/Tests/LegacyBaseTestMockTest.php</file>
-            <file>../src/Lunr/Halo/Tests/LunrBaseTestReflectionTest.php</file>
-            <file>../src/Lunr/Halo/Tests/LunrBaseTestMockTest.php</file>
+            <directory>../src/Lunr/Halo/Tests/</directory>
         </testsuite>
     </testsuites>
     <coverage>