Disable hash comparison on Windows and macOS

Author: domdfcoding

tests/test_plot.py

@@ -1,5 +1,6 @@
 # stdlib
 import os
+import platform
 import sys
 from typing import List
 
@@ -24,22 +25,28 @@
 baseline_dir = str(PathPlus(__file__).parent / "baseline")
 assert os.path.exists(baseline_dir)
 
-if sys.version_info[:2] == (3, 7):
-	image_hashes = str(PathPlus(__file__).parent / "image_hashes_37.json")
-elif sys.version_info[:2] == (3, 8):
-	image_hashes = str(PathPlus(__file__).parent / "image_hashes_38.json")
-elif sys.version_info[:2] == (3, 9):
-	image_hashes = str(PathPlus(__file__).parent / "image_hashes_39.json")
+if platform.system == "Linux":
+	if sys.version_info[:2] == (3, 7):
+		image_hashes = str(PathPlus(__file__).parent / "image_hashes_37.json")
+	elif sys.version_info[:2] == (3, 8):
+		image_hashes = str(PathPlus(__file__).parent / "image_hashes_38.json")
+	elif sys.version_info[:2] == (3, 9):
+		image_hashes = str(PathPlus(__file__).parent / "image_hashes_39.json")
+	else:
+		image_hashes = str(PathPlus(__file__).parent / "image_hashes.json")
+
+	check_images = pytest.mark.mpl_image_compare(
+			baseline_dir=baseline_dir,
+			savefig_kwargs={"dpi": 600},
+			hash_library=image_hashes,
+			style="default",
+			)
 else:
-	image_hashes = str(PathPlus(__file__).parent / "image_hashes.json")
-
-check_images = pytest.mark.mpl_image_compare(
-		baseline_dir=baseline_dir,
-		savefig_kwargs={"dpi": 600},
-		hash_library=image_hashes,
-		style="default",
-		)
-
+	check_images = pytest.mark.mpl_image_compare(
+			baseline_dir=baseline_dir,
+			savefig_kwargs={"dpi": 600},
+			style="default",
+			)
 
 @check_images
 def test_plot_ic(im_i: IntensityMatrix):