Prevent test errors on Windows due to path sep

1 files changed, 8 insertions, 4 deletions

diff --git a/setuptools/tests/test_editable_install.py b/setuptools/tests/test_editable_install.py
index 1f23a46a..57e31eda 100644
--- a/setuptools/tests/test_editable_install.py
+++ b/setuptools/tests/test_editable_install.py
@@ -662,17 +662,17 @@ def test_compat_install(tmp_path, venv):
     out = venv.run(["python", "-c", "import mypkg.mod1; print(mypkg.mod1.var)"])
     assert b"42" in out
 
-    expected_path = str(tmp_path).lower().replace(os.sep, "/")
+    expected_path = comparable_path(str(tmp_path))
 
-    # Compatible behaviour will make spurious modules and excluded files importable
+    # Compatible behaviour will make spurious modules and excluded
+    # files importable directly from the original path
     for cmd in (
         "import otherfile; print(otherfile)",
         "import other; print(other)",
         "import mypkg; print(mypkg)",
     ):
-        out = str(venv.run(["python", "-c", cmd]), "utf-8").lower().replace(os.sep, "/")
+        out = comparable_path(str(venv.run(["python", "-c", cmd]), "utf-8"))
         assert expected_path in out
-        # Compatible mode works by adding the project dir to sys.path
 
     # Compatible behaviour will not consider custom mappings
     cmd = """\
@@ -713,3 +713,7 @@ def assert_link_to(file: Path, other: Path):
         other_stat = other.stat()
         assert file_stat[stat.ST_INO] == other_stat[stat.ST_INO]
         assert file_stat[stat.ST_DEV] == other_stat[stat.ST_DEV]
+
+
+def comparable_path(str_with_path: str) -> str:
+    return str_with_path.lower().replace(os.sep, "/").replace("//", "/")