1 files changed, 27 insertions, 0 deletions
diff --git a/test/SemaCXX/warn-unique-enum.cpp b/test/SemaCXX/warn-unique-enum.cpp
new file mode 100644
index 0000000..59a1278
--- /dev/null
+++ b/test/SemaCXX/warn-unique-enum.cpp
@@ -0,0 +1,27 @@
+// RUN: %clang_cc1 %s -fsyntax-only -verify -Wunique-enum
+enum A { A1 = 1, A2 = 1, A3 = 1 };  // expected-warning {{all elements of 'A' are initialized with literals to value 1}} \
+// expected-note {{initialize the last element with the previous element to silence this warning}}
+enum { B1 = 1, B2 = 1, B3 = 1 }; // no warning
+enum C { // expected-warning {{all elements of 'C' are initialized with literals to value 1}}
+  C1 = true,
+  C2 = true  // expected-note {{initialize the last element with the previous element to silence this warning}}
+};
+enum D { D1 = 5, D2 = 5L, D3 = 5UL, D4 = 5LL, D5 = 5ULL };  // expected-warning {{all elements of 'D' are initialized with literals to value 5}} \
+// expected-note {{initialize the last element with the previous element to silence this warning}}
+
+// Don't warn on enums with less than 2 elements.
+enum E { E1 = 4 };
+enum F { F1 };
+enum G {};
+
+// Don't warn when integer literals do not initialize the elements.
+enum H { H1 = 4, H_MAX = H1, H_MIN = H1 };
+enum I { I1 = H1, I2 = 4 };
+enum J { J1 = 4, J2 = I2 };
+enum K { K1, K2, K3, K4 };
+
+// Don't crash or warn on this one.
+// rdar://11875995
+enum L {
+  L1 = 0x8000000000000000ULL, L2 = 0x0000000000000001ULL
+};