Recipe package system.

recipe_engine/third_party/setuptools/tests/test_build_ext.py

Index: recipe_engine/third_party/setuptools/tests/test_build_ext.py
diff --git a/recipe_engine/third_party/setuptools/tests/test_build_ext.py b/recipe_engine/third_party/setuptools/tests/test_build_ext.py
new file mode 100644
index 0000000000000000000000000000000000000000..a92e53ae26a245730a04613c2ba87560e3ddcf64
--- /dev/null
+++ b/recipe_engine/third_party/setuptools/tests/test_build_ext.py
@@ -0,0 +1,19 @@
+"""build_ext tests
+"""
+import unittest
+from distutils.command.build_ext import build_ext as distutils_build_ext
+from setuptools.command.build_ext import build_ext
+from setuptools.dist import Distribution
+
+class TestBuildExtTest(unittest.TestCase):
+
+    def test_get_ext_filename(self):
+        # setuptools needs to give back the same
+        # result than distutils, even if the fullname
+        # is not in ext_map
+        dist = Distribution()
+        cmd = build_ext(dist)
+        cmd.ext_map['foo/bar'] = ''
+        res = cmd.get_ext_filename('foo')
+        wanted = distutils_build_ext.get_ext_filename(cmd, 'foo')
+        assert res == wanted