core/scripts/run-tests.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/core/scripts/run-tests.sh b/core/scripts/run-tests.sh
index 2936723..e35c6e8 100755
--- a/core/scripts/run-tests.sh
+++ b/core/scripts/run-tests.sh
@@ -36,6 +36,10 @@
 const SIMPLETEST_SCRIPT_EXIT_FAILURE = 1;
 const SIMPLETEST_SCRIPT_EXIT_EXCEPTION = 2;
 
+var_dump(function_exists('apcu_fetch'));
+var_dump(ini_get('apc.shm_size'));
+exit(SIMPLETEST_SCRIPT_EXIT_EXCEPTION);
+
 if (!class_exists('\PHPUnit_Framework_TestCase')) {
   echo "\nrun-tests.sh requires the PHPUnit testing framework. Please use 'composer install --dev' to ensure that it is present.\n\n";
   exit(SIMPLETEST_SCRIPT_EXIT_FAILURE);