Add llvm_cbuilder tests

llvm_cbuilder/tests/test_cstr_collide.py

@@ -0,0 +1,17 @@
+from llvm.core import *
+from llvm_cbuilder import *
+from llvm_cbuilder import shortnames as C
+
+import unittest
+
+class TestCstrCollide(unittest.TestCase):
+    def test_same_string(self):
+        mod = Module.new(__name__)
+        cb = CBuilder.new_function(mod, 'test_cstr_collide', C.void, [])
+
+        a = cb.constant_string("hello")
+        b = cb.constant_string("hello")
+        self.assertEqual(a.value, b.value)
+
+if __name__ == '__main__':
+    unittest.main()