Fixed error on Big Sur when deployment target = 11 (#386)

Fixes #385.

Co-authored-by: FX Coudert <fxcoudert@gmail.com>

2 files changed, 24 insertions, 4 deletions

diff --git a/tests/test_macosx_libfile.py b/tests/test_macosx_libfile.py
index 35cff83..337f0e3 100644
--- a/tests/test_macosx_libfile.py
+++ b/tests/test_macosx_libfile.py
@@ -21,7 +21,8 @@ def test_read_from_dylib():
         ("test_lib_10_10_386.dylib", "10.10.0"),
         ("test_lib_10_14_386.dylib", "10.14.0"),
         ("test_lib_multiple_fat.dylib", "10.14.0"),
-        ("test_lib_10_10_10.dylib", "10.10.10")
+        ("test_lib_10_10_10.dylib", "10.10.10"),
+        ("test_lib_11.dylib", "11.0.0"),
     ]
     for file_name, ver in versions:
         extracted = extract_macosx_min_system_version(
@@ -48,14 +49,14 @@ class TestGetPlatformMacosx:
     def test_simple(self, monkeypatch):
         dirname = os.path.dirname(__file__)
         dylib_dir = os.path.join(dirname, "testdata", "macosx_minimal_system_version")
-        monkeypatch.setattr(distutils.util, "get_platform", return_factory("macosx-10.14-x86_64"))
-        assert get_platform(dylib_dir) == "macosx_10_14_x86_64"
+        monkeypatch.setattr(distutils.util, "get_platform", return_factory("macosx-11.0-x86_64"))
+        assert get_platform(dylib_dir) == "macosx_11_0_x86_64"
 
     def test_version_bump(self, monkeypatch, capsys):
         dirname = os.path.dirname(__file__)
         dylib_dir = os.path.join(dirname, "testdata", "macosx_minimal_system_version")
         monkeypatch.setattr(distutils.util, "get_platform", return_factory("macosx-10.9-x86_64"))
-        assert get_platform(dylib_dir) == "macosx_10_14_x86_64"
+        assert get_platform(dylib_dir) == "macosx_11_0_x86_64"
         captured = capsys.readouterr()
         assert "[WARNING] This wheel needs a higher macOS version than" in captured.err
 
@@ -127,6 +128,25 @@ class TestGetPlatformMacosx:
         captured = capsys.readouterr()
         assert "MACOSX_DEPLOYMENT_TARGET is set to a lower value (10.8) than the" in captured.err
 
+    def test_get_platform_bigsur_env(self, monkeypatch):
+        dirname = os.path.dirname(__file__)
+        dylib_dir = os.path.join(dirname, "testdata", "macosx_minimal_system_version")
+        monkeypatch.setattr(distutils.util, "get_platform", return_factory("macosx-10.9-x86_64"))
+        monkeypatch.setenv("MACOSX_DEPLOYMENT_TARGET", "11")
+        monkeypatch.setattr(os, "walk", return_factory(
+            [(dylib_dir, [], ["test_lib_10_6.dylib", "test_lib_10_10_fat.dylib"])]
+        ))
+        assert get_platform(dylib_dir) == "macosx_11_0_x86_64"
+
+    def test_get_platform_bigsur_platform(self, monkeypatch):
+        dirname = os.path.dirname(__file__)
+        dylib_dir = os.path.join(dirname, "testdata", "macosx_minimal_system_version")
+        monkeypatch.setattr(distutils.util, "get_platform", return_factory("macosx-11-x86_64"))
+        monkeypatch.setattr(os, "walk", return_factory(
+            [(dylib_dir, [], ["test_lib_10_6.dylib", "test_lib_10_10_fat.dylib"])]
+        ))
+        assert get_platform(dylib_dir) == "macosx_11_0_x86_64"
+
 
 def test_get_platform_linux(monkeypatch):
     monkeypatch.setattr(distutils.util, "get_platform", return_factory("linux_x86_64"))
diff --git a/tests/testdata/macosx_minimal_system_version/test_lib_11.dylib b/tests/testdata/macosx_minimal_system_version/test_lib_11.dylib
new file mode 100644
index 0000000..80202c1
--- /dev/null
+++ b/tests/testdata/macosx_minimal_system_version/test_lib_11.dylib