Fix sinon.stub deprecation warnings

Calls to `sinon.stub(obj, 'meth', fn)` are deprecated and therefore
replaced by `sinon.stub(obj, 'meth).callsFake(fn)` as instructed by
the deprecation warning.

This makes the js unit testing output readable again.

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

1 files changed, 1 insertions, 1 deletions

diff --git a/apps/files/tests/js/filelistSpec.js b/apps/files/tests/js/filelistSpec.js
index 865aa35ac6a..ee73914f166 100644
--- a/apps/files/tests/js/filelistSpec.js
+++ b/apps/files/tests/js/filelistSpec.js
@@ -2273,7 +2273,7 @@ describe('OCA.Files.FileList tests', function() {
 			var actionStub = sinon.stub();
 			var readyHandler = sinon.stub();
 			var clock = sinon.useFakeTimers();
-			var debounceStub = sinon.stub(_, 'debounce', function(callback) {
+			var debounceStub = sinon.stub(_, 'debounce').callsFake(function(callback) {
 				return function() {
 					// defer instead of debounce, to make it work with clock
 					_.defer(callback);