avoid failing tests by 1 second off

lib/Cake/Test/Case/Controller/Component/SecurityComponentTest.php

@@ -915,7 +915,7 @@ public function testValidateHasManyRecordsPass() {
  * @return void
  */
 	public function testValidateNestedNumericSets() {
-	
+
 		$this->Controller->Security->startup($this->Controller);
 		$key = $this->Controller->request->params['_Token']['key'];
 		$unlocked = '';
@@ -1122,13 +1122,15 @@ public function testCsrfSettingMultipleNonces() {
 		$this->Security->validatePost = false;
 		$this->Security->csrfCheck = true;
 		$this->Security->csrfExpires = '+10 minutes';
+		$csrfExpires = strtotime('+10 minutes');
 		$this->Security->startup($this->Controller);
 		$this->Security->startup($this->Controller);
 
 		$token = $this->Security->Session->read('_Token');
 		$this->assertEquals(count($token['csrfTokens']), 2, 'Missing the csrf token.');
 		foreach ($token['csrfTokens'] as $key => $expires) {
-			$this->assertEquals(strtotime('+10 minutes'), $expires, 'Token expiry does not match');
+			$diff = $csrfExpires - $expires;
+			$this->assertTrue($diff === 0 || $diff === 1, 'Token expiry does not match');
 		}
 	}