Index: tests/typo3/sysext/scheduler/tx_scheduler_croncmd_testcase.php
===================================================================
--- tests/typo3/sysext/scheduler/tx_scheduler_croncmd_testcase.php	(revision 7195)
+++ tests/typo3/sysext/scheduler/tx_scheduler_croncmd_testcase.php	(working copy)
@@ -42,6 +42,12 @@
 	 * @test
 	 */
 	public function isDayListCorrectForOneDayOfMonth() {
+		if (!t3lib_extMgm::isLoaded('scheduler')) {
+			$this->markTestSkipped(
+				'This test only is applicable if the scheduler is installed.'
+			);
+		}
+
 		$cronCmdInstance = t3lib_div::makeInstance('tx_scheduler_cronCmd', '* * 2 * *');
 		$expectedResult = array(
 			'0' => 2,
@@ -56,6 +62,12 @@
 	 * @test
 	 */
 	public function isDayListCorrectForListOfDayOfMonth() {
+		if (!t3lib_extMgm::isLoaded('scheduler')) {
+			$this->markTestSkipped(
+				'This test only is applicable if the scheduler is installed.'
+			);
+		}
+
 		$cronCmdInstance = t3lib_div::makeInstance('tx_scheduler_cronCmd', '* * 2,7 * *');
 		$expectedResult = array(
 			'0' => 2,
@@ -71,6 +83,12 @@
 	 * @test
 	 */
 	public function isDayListCorrectForRangeOfDayOfMonth() {
+		if (!t3lib_extMgm::isLoaded('scheduler')) {
+			$this->markTestSkipped(
+				'This test only is applicable if the scheduler is installed.'
+			);
+		}
+
 		$cronCmdInstance = t3lib_div::makeInstance('tx_scheduler_cronCmd', '* * 2-4,10 * *');
 		$expectedResult = array(
 			'0' => 2,
@@ -88,6 +106,12 @@
 	 * @test
 	 */
 	public function isDayListCorrectForOneDayOfWeek() {
+		if (!t3lib_extMgm::isLoaded('scheduler')) {
+			$this->markTestSkipped(
+				'This test only is applicable if the scheduler is installed.'
+			);
+		}
+
 		$cronCmdInstance = t3lib_div::makeInstance('tx_scheduler_cronCmd', '* * * * 1', self::TIMESTAMP);
 		$expectedResult = array(
 			'0' => 4,
@@ -105,6 +129,12 @@
 	 * @test
 	 */
 	public function isDayListCorrectForCombinationOfDayOfMonthAndDayOfWeek() {
+		if (!t3lib_extMgm::isLoaded('scheduler')) {
+			$this->markTestSkipped(
+				'This test only is applicable if the scheduler is installed.'
+			);
+		}
+
 		$cronCmdInstance = t3lib_div::makeInstance('tx_scheduler_cronCmd', '* * 1,2 * 1', self::TIMESTAMP);
 		$expectedResult = array(
 			'0' => 1,
@@ -118,4 +148,4 @@
 		$this->assertEquals($expectedResult, $actualResult[2]);
 	}
 }
-?>
+?>
\ No newline at end of file