round the mtime in touch

Signed-off-by: Robin Appelman <robin@icewind.nl>

lib/private/Files/View.php

@@ -569,7 +569,7 @@ class View {
 				$mtime = time();
 			}
 			//if native touch fails, we emulate it by changing the mtime in the cache
-			$this->putFileInfo($path, array('mtime' => $mtime));
+			$this->putFileInfo($path, array('mtime' => floor($mtime)));
 		}
 		return true;
 	}

tests/lib/Files/ViewTest.php

@@ -588,6 +588,23 @@ class ViewTest extends \Test\TestCase {
 		$this->assertEquals($cachedData['storage_mtime'], $cachedData['mtime']);
 	}
 
+	/**
+	 * @medium
+	 */
+	public function testTouchFloat() {
+		$storage = $this->getTestStorage(true, TemporaryNoTouch::class);
+
+		Filesystem::mount($storage, array(), '/');
+
+		$rootView = new View('');
+		$oldCachedData = $rootView->getFileInfo('foo.txt');
+
+		$rootView->touch('foo.txt', 500.5);
+
+		$cachedData = $rootView->getFileInfo('foo.txt');
+		$this->assertEquals(500, $cachedData['mtime']);
+	}
+
 	/**
 	 * @medium
 	 */