Converting tests to the new-style

test/old/01_basic/setup.py

@@ -0,0 +1,15 @@
+import os
+
+from setuptools import (
+    Extension,
+    setup,
+)
+
+if os.environ.get('CIBUILDWHEEL', '0') != '1':
+    raise Exception('CIBUILDWHEEL environment variable is not set to 1')
+
+setup(
+    name="spam",
+    ext_modules=[Extension('spam', sources=['spam.c'])],
+    version="0.1.0",
+)