update the test to explicitly draw the canvas

Author: Jovan Mitrevski

setup.py

@@ -5,7 +5,7 @@
 
 setuptools.setup(
     name="matplotlib_backend_qtquick",
-    version="0.0.4",
+    version="0.0.5",
     author="Jovan Mitrevski",
     author_email="j.p.mitrevski@gmail.com",
     description="A QtQuick backend for matplotlib",

tests/testBackend.py

@@ -15,7 +15,6 @@
 class DisplayBridge(QtCore.QObject):
     """ A bridge class to interact with the plot in python
     """
-    stateChanged = QtCore.Signal()
 
     def __init__(self, parent=None):
         super().__init__(parent)
@@ -38,7 +37,7 @@ def updateWithCanvas(self, canvas):
         y = np.sin(x)
 
         self.axes.plot(x, y)
-        self.stateChanged.emit()
+        canvas.draw_idle()
 
 
 class TestBackend(unittest.TestCase):