1 files changed, 37 insertions, 0 deletions

diff --git a/libcxx/test/strings/basic.string/string.cons/copy_alloc.pass.cpp b/libcxx/test/strings/basic.string/string.cons/copy_alloc.pass.cpp
new file mode 100644
index 00000000000..00763cd05ed
--- /dev/null
+++ b/libcxx/test/strings/basic.string/string.cons/copy_alloc.pass.cpp
@@ -0,0 +1,37 @@
+//===----------------------------------------------------------------------===//
+//
+// ΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚThe LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// basic_string(const basic_string& str, const Allocator& alloc);
+
+#include <string>
+#include <cassert>
+
+#include "../test_allocator.h"
+
+template <class S>
+void
+test(S s1, const typename S::allocator_type& a)
+{
+    S s2(s1, a);
+    assert(s2.__invariants());
+    assert(s2 == s1);
+    assert(s2.capacity() >= s2.size());
+    assert(s2.get_allocator() == a);
+}
+
+int main()
+{
+    typedef test_allocator<char> A;
+    typedef std::basic_string<char, std::char_traits<char>, A> S;
+    test(S(), A(3));
+    test(S("1"), A(5));
+    test(S("1234567890123456789012345678901234567890123456789012345678901234567890"), A(7));
+}