add before test variable

test/10_before_test/setup.py

@@ -0,0 +1,19 @@
+from setuptools import setup, Extension
+import sys, os
+
+# assert that the Python version as written to pythonversion.txt in the CIBW_BEFORE_BUILD step
+# is the same one as is currently running.
+version_file = 'c:\\pythonversion.txt' if sys.platform == 'win32' else '/tmp/pythonversion.txt'
+if os.path.exists(version_file):
+    os.remove(version_file)
+
+# check that the executable also was written
+executable_file = 'c:\\pythonexecutable.txt' if sys.platform == 'win32' else '/tmp/pythonexecutable.txt'
+if os.path.exists(executable_file):
+    os.remove(executable_file)
+
+setup(
+    name="spam",
+    ext_modules=[Extension('spam', sources=['spam.c'])],
+    version="0.1.0",
+)