Make BinaryRef output correctly in case of empty data.
Previously, it would simply output nothing, but it should output an
empty string `""`.
llvm-svn: 185894
diff --git a/llvm/unittests/Object/YAMLTest.cpp b/llvm/unittests/Object/YAMLTest.cpp
new file mode 100644
index 0000000..3428e94
--- /dev/null
+++ b/llvm/unittests/Object/YAMLTest.cpp
@@ -0,0 +1,40 @@
+//===- llvm/unittest/Object/YAMLTest.cpp - Tests for Object YAML ----------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Object/YAML.h"
+#include "llvm/Support/YAMLTraits.h"
+#include "gtest/gtest.h"
+
+using namespace llvm;
+
+namespace {
+struct BinaryHolder {
+ object::yaml::BinaryRef Binary;
+};
+} // end anonymous namespace
+
+namespace llvm {
+namespace yaml {
+template <>
+struct MappingTraits<BinaryHolder> {
+ static void mapping(IO &IO, BinaryHolder &BH) {
+ IO.mapRequired("Binary", BH.Binary);
+ }
+};
+} // end namespace yaml
+} // end namespace llvm
+
+TEST(ObjectYAML, BinaryRef) {
+ BinaryHolder BH;
+ SmallVector<char, 32> Buf;
+ llvm::raw_svector_ostream OS(Buf);
+ yaml::Output YOut(OS);
+ YOut << BH;
+ EXPECT_NE(OS.str().find("\"\""), StringRef::npos);
+}