1 files changed, 19 insertions, 3 deletions
diff --git a/unittests/Format/FormatTestComments.cpp b/unittests/Format/FormatTestComments.cpp
index ed11fbdb1fc0..cacd2024fef3 100644
--- a/unittests/Format/FormatTestComments.cpp
+++ b/unittests/Format/FormatTestComments.cpp
@@ -38,8 +38,8 @@ protected:
   std::string format(llvm::StringRef Code,
                      const FormatStyle &Style = getLLVMStyle(),
                      StatusCheck CheckComplete = SC_ExpectComplete) {
-    DEBUG(llvm::errs() << "---\n");
-    DEBUG(llvm::errs() << Code << "\n\n");
+    LLVM_DEBUG(llvm::errs() << "---\n");
+    LLVM_DEBUG(llvm::errs() << Code << "\n\n");
     std::vector<tooling::Range> Ranges(1, tooling::Range(0, Code.size()));
     FormattingAttemptStatus Status;
     tooling::Replacements Replaces =
@@ -52,7 +52,7 @@ protected:
     ReplacementCount = Replaces.size();
     auto Result = applyAllReplacements(Code, Replaces);
     EXPECT_TRUE(static_cast<bool>(Result));
-    DEBUG(llvm::errs() << "\n" << *Result << "\n\n");
+    LLVM_DEBUG(llvm::errs() << "\n" << *Result << "\n\n");
     return *Result;
   }
 
@@ -70,6 +70,7 @@ protected:
 
   void verifyFormat(llvm::StringRef Code,
                     const FormatStyle &Style = getLLVMStyle()) {
+    EXPECT_EQ(Code.str(), format(Code, Style)) << "Expected code is not stable";
     EXPECT_EQ(Code.str(), format(test::messUp(Code), Style));
   }
 
@@ -3089,6 +3090,21 @@ TEST_F(FormatTestComments, BreaksBeforeTrailingUnbreakableSequence) {
                getLLVMStyleWithColumns(23));
 }
 
+TEST_F(FormatTestComments, ReflowBackslashCrash) {
+// clang-format off
+  EXPECT_EQ(
+"// How to run:\n"
+"// bbbbb run \\\n"
+"// rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr\n"
+"// \\ <log_file> -- --output_directory=\"<output_directory>\"",
+  format(
+"// How to run:\n"
+"// bbbbb run \\\n"
+"// rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr \\\n"
+"// <log_file> -- --output_directory=\"<output_directory>\""));
+// clang-format on
+}
+
 } // end namespace
 } // end namespace format
 } // end namespace clang