Suppress stderr noise when test case runs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161085 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/unittests/Support/YAMLParserTest.cpp b/unittests/Support/YAMLParserTest.cpp
index e88427a..480a573 100644
--- a/unittests/Support/YAMLParserTest.cpp
+++ b/unittests/Support/YAMLParserTest.cpp
@@ -16,11 +16,17 @@
namespace llvm {
+static void SuppressDiagnosticsOutput(const SMDiagnostic &, void *) {
+ // Prevent SourceMgr from writing errors to stderr
+ // to reduce noise in unit test runs.
+}
+
// Checks that the given input gives a parse error. Makes sure that an error
// text is available and the parse fails.
static void ExpectParseError(StringRef Message, StringRef Input) {
SourceMgr SM;
yaml::Stream Stream(Input, SM);
+ SM.setDiagHandler(SuppressDiagnosticsOutput);
EXPECT_FALSE(Stream.validate()) << Message << ": " << Input;
EXPECT_TRUE(Stream.failed()) << Message << ": " << Input;
}