matplotlib
diff --git a/‎lib/matplotlib/backends/_macos_helpers.py
Lines changed: 0 additions & 10 deletions b/‎lib/matplotlib/backends/_macos_helpers.py
Lines changed: 0 additions & 10 deletions
diff --git a/‎lib/matplotlib/backends/backend_macosx.py
Lines changed: 1 addition & 2 deletions b/‎lib/matplotlib/backends/backend_macosx.py
Lines changed: 1 addition & 2 deletions
diff --git a/‎lib/matplotlib/backends/backend_qt5.py
Lines changed: 3 additions & 3 deletions b/‎lib/matplotlib/backends/backend_qt5.py
Lines changed: 3 additions & 3 deletions
diff --git a/‎lib/matplotlib/tests/test__macos_helpers.py
Lines changed: 0 additions & 37 deletions b/‎lib/matplotlib/tests/test__macos_helpers.py
Lines changed: 0 additions & 37 deletions
diff --git a/‎lib/matplotlib/tests/test__macosx.py
Lines changed: 34 additions & 0 deletions b/‎lib/matplotlib/tests/test__macosx.py
Lines changed: 34 additions & 0 deletions
@@ -8,7 +8,6 @@
     TimerBase)
 from matplotlib.figure import Figure
 from matplotlib.widgets import SubplotTool
-from . import _macos_helpers
 
 
 ########################################################################
@@ -62,7 +61,7 @@ def __init__(self, figure):
         width, height = self.get_width_height()
         _macosx.FigureCanvas.__init__(self, width, height)
         image = str(cbook._get_data_path('images/matplotlib.pdf'))
-        _macos_helpers.set_mac_icon(image)
+        _macosx.set_icon(image)
         self._device_scale = 1.0
 
     def _set_device_scale(self, value):
 
@@ -542,9 +542,9 @@ def __init__(self, canvas, num):
         image = str(cbook._get_data_path('images/matplotlib.svg'))
         self.window.setWindowIcon(QtGui.QIcon(image))
         if sys.platform == "darwin":
-            from . import _macos_helpers
-            image = str(cbook._get_data_path('images/matplotlib.pdf'))
-            _macos_helpers.set_mac_icon(image)
+            from matplotlib.backends import _macosx
+            pdf_icon = str(cbook._get_data_path('images/matplotlib.pdf'))
+            _macosx.set_icon(pdf_icon)
 
         # Give the keyboard focus to the figure instead of the
         # manager; StrongFocus accepts both tab and click to focus and
 
@@ -0,0 +1,34 @@
+import sys
+import pytest
+from matplotlib import cbook
+
+
+class NoString:
+    def __repr__(self):
+        pass
+
+
+if sys.platform == "darwin":
+    from matplotlib.backends import _macosx
+
+    def test_set_icon():
+        with pytest.raises(TypeError):
+            _macosx.set_icon()
+
+        with pytest.raises(TypeError):
+            _macosx.set_icon(1)
+
+        with pytest.raises(TypeError):
+            _macosx.set_icon([1, 2, 'a'])
+
+        with pytest.raises(TypeError):
+            _macosx.set_icon(None)
+
+        with pytest.raises(TypeError):
+            _macosx.set_icon(NoString())
+
+        with pytest.raises(RuntimeError):
+            _macosx.set_icon("invalid path")
+
+        icon = cbook._get_data_path("images/matplotlib.pdf")
+        _macosx.set_icon(icon)