Migrate Figure.inset tests to use dvc (#1163)

Co-authored-by: Dongdong Tian <[email protected]>
Co-authored-by: Wei Ji <[email protected]>

Author: 3 people

pygmt/tests/baseline/test_inset_aliases.png.dvc

@@ -0,0 +1,4 @@
+outs:
+- md5: f6ddb4129474219bfa30154614a189a5
+  size: 31937
+  path: test_inset_aliases.png

pygmt/tests/baseline/test_inset_context_manager.png.dvc

@@ -0,0 +1,4 @@
+outs:
+- md5: c06c3d8cbeb5b9b7ae977870b4c825d9
+  size: 13322
+  path: test_inset_context_manager.png

pygmt/tests/test_inset.py

@@ -1,42 +1,31 @@
 """
 Tests for the inset function.
 """
+import pytest
 from pygmt import Figure
-from pygmt.helpers.testing import check_figures_equal
 
 
-@check_figures_equal()
+@pytest.mark.mpl_image_compare
 def test_inset_aliases():
     """
     Test the aliases for the inset function.
     """
-    fig_ref, fig_test = Figure(), Figure()
-    fig_ref.basemap(R="MG+r2", B="afg")
-    with fig_ref.inset(D="jTL+w3.5c+o0.2c", M=0, F="+pgreen"):
-        fig_ref.basemap(R="g", J="G47/-20/4c", B="afg")
+    fig = Figure()
+    fig.basemap(region="MG+r2", frame="afg")
+    with fig.inset(position="jTL+w3.5c+o0.2c", margin=0, box="+pgreen"):
+        fig.basemap(region="g", projection="G47/-20/4c", frame="afg")
+    return fig
 
-    fig_test.basemap(region="MG+r2", frame="afg")
-    with fig_test.inset(position="jTL+w3.5c+o0.2c", margin=0, box="+pgreen"):
-        fig_test.basemap(region="g", projection="G47/-20/4c", frame="afg")
-    return fig_ref, fig_test
 
-
-@check_figures_equal()
+@pytest.mark.mpl_image_compare
 def test_inset_context_manager():
     """
     Test that the inset context manager works and, once closed, plotting
     elements are added to the larger figure.
     """
-    fig_ref, fig_test = Figure(), Figure()
-
-    fig_ref.basemap(region=[-74, -69.5, 41, 43], projection="M9c", frame=True)
-    fig_ref.basemap(rose="jTR+w3c")  # Pass rose argument with basemap before the inset
-    with fig_ref.inset(position="jBL+w3c+o0.2c", margin=0, box="+pblack"):
-        fig_ref.basemap(region=[-80, -65, 35, 50], projection="M3c", frame="afg")
-
-    fig_test.basemap(region=[-74, -69.5, 41, 43], projection="M9c", frame=True)
-    with fig_test.inset(position="jBL+w3c+o0.2c", margin=0, box="+pblack"):
-        fig_test.basemap(region=[-80, -65, 35, 50], projection="M3c", frame="afg")
-    fig_test.basemap(rose="jTR+w3c")  # Pass rose argument with basemap after the inset
-
-    return fig_ref, fig_test
+    fig = Figure()
+    fig.basemap(region=[-74, -69.5, 41, 43], projection="M9c", frame=True)
+    with fig.inset(position="jBL+w3c+o0.2c", margin=0, box="+pblack"):
+        fig.basemap(region=[-80, -65, 35, 50], projection="M3c", frame="afg")
+    fig.basemap(rose="jTR+w3c")  # Pass rose argument with basemap after the inset
+    return fig