1 files changed, 40 insertions, 0 deletions
diff --git a/unittests/Tooling/RecursiveASTVisitorTests/TemplateArgumentLocTraverser.cpp b/unittests/Tooling/RecursiveASTVisitorTests/TemplateArgumentLocTraverser.cpp
new file mode 100644
index 0000000000000..0c9cbf2eb4a8b
--- /dev/null
+++ b/unittests/Tooling/RecursiveASTVisitorTests/TemplateArgumentLocTraverser.cpp
@@ -0,0 +1,40 @@
+//===- unittest/Tooling/RecursiveASTVisitorTests/TemplateArgumentLocTraverser.cpp -===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "TestVisitor.h"
+
+using namespace clang;
+
+namespace {
+
+class TemplateArgumentLocTraverser
+  : public ExpectedLocationVisitor<TemplateArgumentLocTraverser> {
+public:
+  bool TraverseTemplateArgumentLoc(const TemplateArgumentLoc &ArgLoc) {
+    std::string ArgStr;
+    llvm::raw_string_ostream Stream(ArgStr);
+    const TemplateArgument &Arg = ArgLoc.getArgument();
+
+    Arg.print(Context->getPrintingPolicy(), Stream);
+    Match(Stream.str(), ArgLoc.getLocation());
+    return ExpectedLocationVisitor<TemplateArgumentLocTraverser>::
+      TraverseTemplateArgumentLoc(ArgLoc);
+  }
+};
+
+TEST(RecursiveASTVisitor, VisitsClassTemplateTemplateParmDefaultArgument) {
+  TemplateArgumentLocTraverser Visitor;
+  Visitor.ExpectMatch("X", 2, 40);
+  EXPECT_TRUE(Visitor.runOver(
+    "template<typename T> class X;\n"
+    "template<template <typename> class T = X> class Y;\n"
+    "template<template <typename> class T> class Y {};\n"));
+}
+
+} // end anonymous namespace