Index: tests/typo3/sysext/cms/tslib/tslib_content_testcase.php
===================================================================
--- tests/typo3/sysext/cms/tslib/tslib_content_testcase.php	(Revision 7519)
+++ tests/typo3/sysext/cms/tslib/tslib_content_testcase.php	(Arbeitskopie)
@@ -107,8 +107,43 @@
 	////////////////////////
 
 	/**
-	 * Converts the subject and the expected result into the target charset.
+	 * Tests whether cImage returns right img-tag
 	 *
+	 * @test
+	 */
+	public function doesGetImgResourceReturnRightValue() {
+		$template = $this->getMock(
+			't3lib_TStemplate', array( 'linkData')
+		);
+		$template->allowedPaths = Array(
+			'media/',
+			$GLOBALS['TYPO3_CONF_VARS']['BE']['fileadminDir'],	// fileadmin/ path
+			'uploads/',
+			'typo3temp/',
+			't3lib/fonts/',
+			TYPO3_mainDir . 'ext/',
+			TYPO3_mainDir . 'sysext/',
+			TYPO3_mainDir . 'contrib/',
+			'typo3conf/ext/'
+		);
+		$template->getFileName_backPath = PATH_site;
+		$GLOBALS['TSFE']->tmpl = $template ;
+
+		$imgRes = 'typo3/sysext/cms/ext_icon.gif';
+		$result = $this->cObj->getImgResource($imgRes, NULL);
+		$this->assertEquals($imgRes, $result[3]);
+
+		$imgRes = 'EXT:cms/ext_icon.gif';
+		$expected = 'typo3/sysext/cms/ext_icon.gif';
+		$result = $this->cObj->getImgResource($imgRes, NULL);
+		$this->assertEquals($expected, $result[3]);
+
+		$GLOBALS['TSFE']->tmpl = $this->template ;
+	}
+
+	/**
+	 * Tests whether the getImgResource hook is called correctly.
+	 *
 	 * @param string $charset the target charset
 	 * @param string $subject the subject, will be modified
 	 * @param string $expected the expected result, will be modified