diff --git a/src/napari_matplotlib/base.py b/src/napari_matplotlib/base.py
index daf7bac9..25b10ee7 100644
--- a/src/napari_matplotlib/base.py
+++ b/src/napari_matplotlib/base.py
@@ -183,6 +183,7 @@ def _update_layers(self, event: napari.utils.events.Event) -> None:
Update the ``layers`` attribute with currently selected layers and re-draw.
"""
self.layers = list(self.viewer.layers.selection)
+ self.layers = sorted(self.layers, key=lambda layer: layer.name)
self.on_update_layers()
self._draw()
diff --git a/src/napari_matplotlib/tests/baseline/test_scatter.png b/src/napari_matplotlib/tests/baseline/test_scatter.png
new file mode 100644
index 00000000..1fd7d9e8
Binary files /dev/null and b/src/napari_matplotlib/tests/baseline/test_scatter.png differ
diff --git a/src/napari_matplotlib/tests/test_scatter.py b/src/napari_matplotlib/tests/test_scatter.py
index 88e0584c..d1101909 100644
--- a/src/napari_matplotlib/tests/test_scatter.py
+++ b/src/napari_matplotlib/tests/test_scatter.py
@@ -1,17 +1,32 @@
+from copy import deepcopy
from typing import Any, Dict, Tuple
import numpy as np
import numpy.typing as npt
+import pytest
from napari_matplotlib import FeaturesScatterWidget, ScatterWidget
-def test_scatter(make_napari_viewer):
- # Smoke test adding a scatter widget
+@pytest.mark.mpl_image_compare
+def test_scatter(make_napari_viewer, astronaut_data):
viewer = make_napari_viewer()
- viewer.add_image(np.random.random((100, 100)))
- viewer.add_image(np.random.random((100, 100)))
- ScatterWidget(viewer)
+ widget = ScatterWidget(viewer)
+ fig = widget.figure
+
+ viewer.add_image(astronaut_data[0], **astronaut_data[1], name="astronaut")
+
+ viewer.add_image(
+ astronaut_data[0] * -1, **astronaut_data[1], name="astronaut_reversed"
+ )
+ # De-select existing selection
+ viewer.layers.selection.clear()
+
+ # Select images
+ viewer.layers.selection.add(viewer.layers[0])
+ viewer.layers.selection.add(viewer.layers[1])
+
+ return deepcopy(fig)
def test_features_scatter_widget(make_napari_viewer):
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