Index: tests/t3lib/t3lib_divTest.php
===================================================================
--- tests/t3lib/t3lib_divTest.php	(revision 8132)
+++ tests/t3lib/t3lib_divTest.php	(working copy)
@@ -1615,5 +1615,66 @@
 		$this->assertEquals('someFile', $fileInfo['filebody']);
 		$this->assertEquals('png', $fileInfo['fileext']);
 	}
+
+	/**
+	 * Values, that should prokove TRUE in t3lib_div::testInt()
+	 *
+	 * @return array
+	 */
+	public function validTestIntDataProvider() {
+		return array(
+			'int' => array(32425),
+			'negative int' => array(-32425),
+			'largest int' => array(PHP_INT_MAX),
+			'int as string' => array('32425'),
+			'negative int as string' => array('-32425'),
+			'zero' => array(0),
+			'zero as string' => array('0'),
+		);
+	}
+
+	/**
+	 * Checks if t3lib_div::testInt() returns true on valid values
+	 *
+	 * @test
+	 * @see t3lib_div::testInt()
+	 * @dataProvider validTestIntDataProvider
+	 */
+	public function checkTestIntReturnsTrue($int) {
+		$this->assertTrue(t3lib_div::testInt($int));
+	}
+
+	/**
+	 * Values, that should prokove FALSE in t3lib_div::testInt()
+	 *
+	 * @return array
+	 */
+	public function invalidTestIntDataProvider() {
+		return array(
+			'largest int plus one' => array(PHP_INT_MAX + 1),
+			'largest int plus one as string' => array(PHP_INT_MAX . '1'),
+			'string' => array('testInt'),
+			'empty string' => array(''),
+			'int in string' => array('5 times of testInt'),
+			'int as string with leading zero' => array('01234'),
+			'float' => array(3.14159),
+			'float as string' => array('3.14159'),
+			'null' => array(NULL),
+			'empty array' => array(array()),
+			'int in array' => array(array(32425)),
+			'int as string in array' => array(array('32425')),
+		);
+	}
+
+	/**
+	 * Checks if t3lib_div::testInt() returns false on invald values
+	 *
+	 * @test
+	 * @see t3lib_div::testInt()
+	 * @dataProvider invalidTestIntDataProvider
+	 */
+	public function checkTestIntReturnsFalse($int) {
+		$this->assertFalse(t3lib_div::testInt($int));
+	}
 }
 ?>
\ No newline at end of file