Add tick() method to TickingDateTimeFactory

AUTHORS.rst

@@ -22,3 +22,4 @@ Patches and Suggestions
 - `staticdev <[email protected]>`_
 - `Marcin Sulikowski <https://github.com/marcinsulikowski>`_
 - `Ashish Patil <https://github.com/ashishnitinpatil>`_
+- `Victor Ferrer <https://github.com/vicfergar>`_

freezegun/api.py

@@ -496,6 +496,13 @@ def __init__(self, time_to_freeze, start):
     def __call__(self):
         return self.time_to_freeze + (real_datetime.now() - self.start)
 
+    def tick(self, delta=datetime.timedelta(seconds=1)):
+        if isinstance(delta, numbers.Real):
+            # noinspection PyTypeChecker
+            self.move_to(self.time_to_freeze + datetime.timedelta(seconds=delta))
+        else:
+            self.move_to(self.time_to_freeze + delta)
+
     def move_to(self, target_datetime):
         """Moves frozen date to the given ``target_datetime``"""
         self.start = real_datetime.now()

tests/test_ticking.py

@@ -63,6 +63,22 @@ def test_ticking_time():
         assert time.time() > 1326585599.0
 
 
+@utils.cpython_only
+def test_ticking_tick():
+    with freeze_time("Jan 14th, 2012, 23:59:59", tick=True) as ft:
+        ft.tick(61)
+        time.sleep(0.001)  # Deal with potential clock resolution problems
+        assert datetime.datetime.now().replace(
+            second=0, microsecond=0
+        ) == datetime.datetime(2012, 1, 15, 0, 1, 0)
+
+        ft.tick(delta=datetime.timedelta(minutes=2))
+        time.sleep(0.001)  # Deal with potential clock resolution problems
+        assert datetime.datetime.now().replace(
+            second=0, microsecond=0
+        ) == datetime.datetime(2012, 1, 15, 0, 3, 0)
+
+
 @utils.cpython_only
 def test_ticking_move_to():
     with freeze_time("Jan 14th, 2012, 23:59:59", tick=True) as ft: