Write the tests for init extension modules (#472).

test/test_evaluate/init_extension_module/setup.py

@@ -0,0 +1,10 @@
+from distutils.core import setup, Extension
+
+setup(name='init_extension_module',
+      version='0.0',
+      description='',
+      ext_modules=[
+          Extension('init_extension_module.__init__',
+                    sources=['module.c'])
+      ]
+)