[YAML] Fix UTF-8 handling

Previous YAML quoting patches broke UTF-8 printing in YAML: see https://reviews.llvm.org/D41290#961801.

Differential Revision: https://reviews.llvm.org/D41490

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321283 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 28 insertions, 0 deletions

diff --git a/unittests/Support/YAMLIOTest.cpp b/unittests/Support/YAMLIOTest.cpp
index 9caff85a596..650b02cdea9 100644
--- a/unittests/Support/YAMLIOTest.cpp
+++ b/unittests/Support/YAMLIOTest.cpp
@@ -2541,3 +2541,31 @@ TEST(YAMLIO, TestEscapedSingleQuoteInsideSingleQuote) {
   ostr.flush();
   EXPECT_EQ("'abc''fdf'", out);
 }
+
+TEST(YAMLIO, TestEscapedUTF8SingleQuoteInsideDoubleQuote) {
+  std::string Id = "parameter 'параметр' is unused";
+
+  std::string out;
+  llvm::raw_string_ostream ostr(out);
+  Output xout(ostr, nullptr, 0);
+
+  llvm::yaml::EmptyContext Ctx;
+  yamlize(xout, Id, true, Ctx);
+
+  ostr.flush();
+  EXPECT_EQ("\"parameter 'параметр' is unused\"", out);
+}
+
+TEST(YAMLIO, TestEscapedUTF8) {
+  std::string Id = "/*параметр*/";
+
+  std::string out;
+  llvm::raw_string_ostream ostr(out);
+  Output xout(ostr, nullptr, 0);
+
+  llvm::yaml::EmptyContext Ctx;
+  yamlize(xout, Id, true, Ctx);
+
+  ostr.flush();
+  EXPECT_EQ("\"/*параметр*/\"", out);
+}