Add test to '#define DOT 0x1FF' like defines

1 files changed, 18 insertions, 0 deletions

diff --git a/testing/backend_tests.py b/testing/backend_tests.py
index e7da1ef..35e382d 100644
--- a/testing/backend_tests.py
+++ b/testing/backend_tests.py
@@ -1581,3 +1581,21 @@ class BackendTests:
         assert s[0].a == b'X'
         assert s[1].b == -4892220
         assert s[1].a == b'Y'
+
+    def test_define_integer_constant(self):
+        ffi = FFI(backend=self.Backend())
+        ffi.cdef("""
+            #define DOT 100
+            #define DOT_OCT 0100l
+            #define DOT_HEX 0x100u
+            #define DOT_UL 1000UL
+            enum foo {AA, BB=DOT, CC};
+        """)
+        lib = ffi.dlopen(None)
+        assert ffi.string(ffi.cast("enum foo", 100)) == "BB"
+        assert lib.DOT == 100
+        assert lib.DOT_OCT == 0o100
+        assert lib.DOT_HEX == 0x100
+        assert lib.DOT_UL == 1000
+
+