1 files changed, 64 insertions, 0 deletions
diff --git a/test/SemaCXX/namespace-alias.cpp b/test/SemaCXX/namespace-alias.cpp
new file mode 100644
index 0000000..d5e4238
--- /dev/null
+++ b/test/SemaCXX/namespace-alias.cpp
@@ -0,0 +1,64 @@
+// RUN: clang-cc -fsyntax-only -verify %s
+
+namespace N { };
+
+namespace A = N;
+
+int B; // expected-note {{previous definition is here}}
+namespace B = N; // expected-error {{redefinition of 'B' as different kind of symbol}}
+
+namespace C { } // expected-note {{previous definition is here}}
+namespace C = N; // expected-error {{redefinition of 'C'}}
+
+int i;
+namespace D = i; // expected-error {{expected namespace name}}
+
+namespace E = N::Foo; // expected-error {{expected namespace name}}
+
+namespace F {
+  namespace A { namespace B { } } // expected-note {{candidate found by name lookup is 'F::A::B'}}
+  namespace B { } // expected-note {{candidate found by name lookup is 'F::B'}}
+  using namespace A;
+  namespace D = B; // expected-error {{reference to 'B' is ambiguous}}
+}
+
+namespace G { 
+  namespace B = N;
+}
+
+namespace H {
+  namespace A1 { }
+  namespace A2 { }
+
+  // These all point to A1.
+  namespace B = A1; // expected-note {{previous definition is here}}
+  namespace B = A1;
+  namespace C = B;
+  namespace B = C;
+
+  namespace B = A2; // expected-error {{redefinition of 'B' as different kind of symbol}}
+}
+
+namespace I { 
+  namespace A1 { int i; }
+  
+  namespace A2 = A1;
+}
+
+int f() {
+  return I::A2::i;
+}
+
+namespace J {
+  namespace A { 
+    namespace B { void func (); }
+  }
+
+  namespace C = A;
+
+  using namespace C::B;
+
+  void g() {
+    func();
+  }
+}