5164 fixes wsireader test (#5165)

Fixes #5164

### Description
fixes file path tests

### Types of changes
<!--- Put an `x` in all the boxes that apply, and remove the not
applicable items -->
- [x] Non-breaking change (fix or new feature that would not break
existing functionality).
- [x] Quick tests passed locally by running `./runtests.sh --quick
--unittests --disttests`.

Signed-off-by: Wenqi Li <[email protected]>

Author: wyli

Diff for: tests/test_wsireader.py

@@ -280,7 +280,7 @@ def test_read_whole_image(self, file_path, level, expected_shape):
                 img, meta = reader.get_data(img_obj)
             self.assertTupleEqual(img.shape, expected_shape)
             self.assertEqual(meta["backend"], self.backend)
-            self.assertEqual(meta[WSIPatchKeys.PATH], str(os.path.abspath(file_path)))
+            self.assertEqual(meta[WSIPatchKeys.PATH].lower(), str(os.path.abspath(file_path)).lower())
             self.assertEqual(meta[WSIPatchKeys.LEVEL], level)
             assert_array_equal(meta[WSIPatchKeys.SIZE], expected_shape[1:])
             assert_array_equal(meta[WSIPatchKeys.LOCATION], (0, 0))
@@ -300,7 +300,7 @@ def test_read_region(self, file_path, kwargs, patch_info, expected_img):
             self.assertTupleEqual(img.shape, expected_img.shape)
             self.assertIsNone(assert_array_equal(img, expected_img))
             self.assertEqual(meta["backend"], self.backend)
-            self.assertEqual(meta[WSIPatchKeys.PATH], str(os.path.abspath(file_path)))
+            self.assertEqual(meta[WSIPatchKeys.PATH].lower(), str(os.path.abspath(file_path)).lower())
             self.assertEqual(meta[WSIPatchKeys.LEVEL], level)
             assert_array_equal(meta[WSIPatchKeys.SIZE], patch_info["size"])
             assert_array_equal(meta[WSIPatchKeys.LOCATION], patch_info["location"])
@@ -320,7 +320,7 @@ def test_read_region_multi_wsi(self, file_path_list, patch_info, expected_img):
             self.assertTupleEqual(img.shape, expected_img.shape)
             self.assertIsNone(assert_array_equal(img, expected_img))
             self.assertEqual(meta["backend"], self.backend)
-            self.assertEqual(meta[WSIPatchKeys.PATH][0], str(os.path.abspath(file_path_list[0])))
+            self.assertEqual(meta[WSIPatchKeys.PATH][0].lower(), str(os.path.abspath(file_path_list[0])).lower())
             self.assertEqual(meta[WSIPatchKeys.LEVEL][0], patch_info["level"])
             assert_array_equal(meta[WSIPatchKeys.SIZE][0], expected_img.shape[1:])
             assert_array_equal(meta[WSIPatchKeys.LOCATION][0], patch_info["location"])
@@ -397,7 +397,7 @@ def test_read_whole_image_multi_thread(self, file_path, level, expected_shape):
                     img, meta = reader.get_data(img_obj)
                 self.assertTupleEqual(img.shape, expected_shape)
                 self.assertEqual(meta["backend"], self.backend)
-                self.assertEqual(meta[WSIPatchKeys.PATH], str(os.path.abspath(file_path)))
+                self.assertEqual(meta[WSIPatchKeys.PATH].lower(), str(os.path.abspath(file_path)).lower())
                 self.assertEqual(meta[WSIPatchKeys.LEVEL], level)
                 assert_array_equal(meta[WSIPatchKeys.SIZE], expected_shape[1:])
                 assert_array_equal(meta[WSIPatchKeys.LOCATION], (0, 0))
@@ -415,7 +415,7 @@ def test_read_region_multi_thread(self, file_path, kwargs, patch_info, expected_
                     self.assertTupleEqual(img.shape, expected_img.shape)
                     self.assertIsNone(assert_array_equal(img, expected_img))
                     self.assertEqual(meta["backend"], self.backend)
-                    self.assertEqual(meta[WSIPatchKeys.PATH], str(os.path.abspath(file_path)))
+                    self.assertEqual(meta[WSIPatchKeys.PATH].lower(), str(os.path.abspath(file_path)).lower())
                     self.assertEqual(meta[WSIPatchKeys.LEVEL], patch_info["level"])
                     assert_array_equal(meta[WSIPatchKeys.SIZE], patch_info["size"])
                     assert_array_equal(meta[WSIPatchKeys.LOCATION], patch_info["location"])