diff --git a/tests/ApplicationUtilsTest.php b/tests/ApplicationUtilsTest.php
index c37a94f..861b8d4 100644
--- a/tests/ApplicationUtilsTest.php
+++ b/tests/ApplicationUtilsTest.php
@@ -75,9 +75,12 @@ class ApplicationUtilsTest extends PHPUnit_Framework_TestCase
      */
     public function testGetLatestGitVersionCodeInvalidUrl()
     {
+        $oldlog = ini_get('error_log');
+        ini_set('error_log', '/dev/null');
         $this->assertFalse(
             ApplicationUtils::getLatestGitVersionCode('htttp://null.io', 1)
         );
+        ini_set('error_log', $oldlog);
     }
 
     /**
diff --git a/tests/CacheTest.php b/tests/CacheTest.php
index 26c4322..992e26a 100644
--- a/tests/CacheTest.php
+++ b/tests/CacheTest.php
@@ -64,10 +64,13 @@ class CacheTest extends PHPUnit_Framework_TestCase
      */
     public function testPurgeCachedPagesMissingDir()
     {
+        $oldlog = ini_get('error_log');
+        ini_set('error_log', '/dev/null');
         $this->assertEquals(
             'Cannot purge sandbox/dummycache_missing: no directory',
             purgeCachedPages(self::$testCacheDir.'_missing')
         );
+        ini_set('error_log', $oldlog);
     }
 
     /**