added a test case for x and y args of LocationEvent

TarasKuzyo · TarasKuzyo · commit fff96784e92e · 2018-07-01T00:31:30.000+03:00
diff --git a/lib/matplotlib/tests/test_backend_bases.py b/lib/matplotlib/tests/test_backend_bases.py
@@ -1,5 +1,6 @@
 from matplotlib.backend_bases import FigureCanvasBase
 from matplotlib.backend_bases import RendererBase
+from matplotlib.backend_bases import LocationEvent
 
 import matplotlib.pyplot as plt
 import matplotlib.transforms as transforms
@@ -77,3 +78,25 @@ def test_non_gui_warning():
         assert len(rec) == 1
         assert ('Matplotlib is currently using pdf, which is a non-GUI backend'
                 in str(rec[0].message))
+                
+                
+def test_location_event_position():
+    # LocationEvent should cast its x and y arguments
+    # to int unless it is None
+    fig = plt.figure()
+    canvas = FigureCanvasBase(fig)
+    test_positions = [(42, 24), (None, 42), (None, None), 
+                      (200, 100.01), (205.75, 2.0)]
+    for x, y in test_positions:
+        event = LocationEvent("test_event", canvas, x, y)
+        if x is None:
+            assert event.x is None
+        else:
+            assert event.x == int(x)
+            assert isinstance(event.x, int)
+        if y is None:
+            assert event.y is None
+        else:
+            assert event.y == int(y)
+            assert isinstance(event.y, int)
+    
