FIX: account for changes on Matplotlib main

Author: tacaswell

mpl_gui/tests/conftest.py

@@ -12,15 +12,6 @@
 sys.modules["matplotlib.pyplot"] = None
 
 
-class TestCanvas(FigureCanvasBase):
-    def __init__(self, *args, **kwargs):
-        super().__init__(*args, **kwargs)
-        self.call_info = {}
-
-    def start_event_loop(self, timeout=0):
-        self.call_info["start_event_loop"] = {"timeout": timeout}
-
-
 class TestManger(FigureManagerBase):
     _active_managers = None
 
@@ -35,6 +26,17 @@ def destroy(self):
         self.call_info["destroy"] = {}
 
 
+class TestCanvas(FigureCanvasBase):
+    manager_class = TestManger
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.call_info = {}
+
+    def start_event_loop(self, timeout=0):
+        self.call_info["start_event_loop"] = {"timeout": timeout}
+
+
 class TestShow(ShowBase):
     def mainloop(self):
         ...