@@ -0,0 +1,23 @@
+import matplotlib
+import scanpy as sc
+import spatialdata_plot  # noqa: F401
+from spatialdata import SpatialData
+
+from tests.conftest import PlotTester, PlotTesterMeta
+
+sc.pl.set_rcParams_defaults()
+sc.set_figure_params(dpi=40, color_map="viridis")
+matplotlib.use("agg")  # same as GitHub action runner
+_ = spatialdata_plot
+
+# WARNING:
+# 1. all classes must both subclass PlotTester and use metaclass=PlotTesterMeta
+# 2. tests which produce a plot must be prefixed with `test_plot_`
+# 3. if the tolerance needs to be changed, don't prefix the function with `test_plot_`, but with something else
+#    the comp. function can be accessed as `self.compare(<your_filename>, tolerance=<your_tolerance>)`
+#    ".png" is appended to <your_filename>, no need to set it
+
+
+class TestShow(PlotTester, metaclass=PlotTesterMeta):
+    def test_plot_pad_extent_adds_padding(self, sdata_blobs: SpatialData):
+        sdata_blobs.pl.render_images(elements="blobs_image").pl.show(pad_extent=100)