Restore pyroma test for iOS (#9116)

Co-authored-by: Andrew Murray <radarhere@users.noreply.github.com>

Tests/test_image_access.py

@@ -317,4 +317,8 @@ int main(int argc, char* argv[])
         assert process.returncode == 0
 
     def teardown_method(self) -> None:
-        os.remove("embed_pil.c")
+        try:
+            os.remove("embed_pil.c")
+        except FileNotFoundError:
+            # If the test was skipped or failed, the file won't exist
+            pass

Tests/test_pyroma.py

@@ -1,5 +1,7 @@
 from __future__ import annotations
 
+from importlib.metadata import metadata
+
 import pytest
 
 from PIL import __version__
@@ -7,9 +9,30 @@ from PIL import __version__
 pyroma = pytest.importorskip("pyroma", reason="Pyroma not installed")
 
 
+def map_metadata_keys(metadata):
+    # Convert installed wheel metadata into canonical Core Metadata 2.4 format.
+    # This was a utility method in pyroma 4.3.3; it was removed in 5.0.
+    # This implementation is constructed from the relevant logic from
+    # Pyroma 5.0's `build_metadata()` implementation. This has been submitted
+    # upstream to Pyroma as https://github.com/regebro/pyroma/pull/116,
+    # so it may be possible to simplify this test in future.
+    data = {}
+    for key in set(metadata.keys()):
+        value = metadata.get_all(key)
+        key = pyroma.projectdata.normalize(key)
+
+        if len(value) == 1:
+            value = value[0]
+            if value.strip() == "UNKNOWN":
+                continue
+
+        data[key] = value
+    return data
+
+
 def test_pyroma() -> None:
     # Arrange
-    data = pyroma.projectdata.get_data(".")
+    data = map_metadata_keys(metadata("Pillow"))
 
     # Act
     rating = pyroma.ratings.rate(data)

pyproject.toml

@@ -68,7 +68,7 @@ optional-dependencies.tests = [
   "markdown2",
   "olefile",
   "packaging",
-  "pyroma",
+  "pyroma>=5",
   "pytest",
   "pytest-cov",
   "pytest-timeout",