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-rw-r--r--clang-tools-extra/test/clang-tidy/warnings-as-errors.cpp13
1 files changed, 13 insertions, 0 deletions
diff --git a/clang-tools-extra/test/clang-tidy/warnings-as-errors.cpp b/clang-tools-extra/test/clang-tidy/warnings-as-errors.cpp
new file mode 100644
index 00000000000..44afb837c23
--- /dev/null
+++ b/clang-tools-extra/test/clang-tidy/warnings-as-errors.cpp
@@ -0,0 +1,13 @@
+// RUN: clang-tidy %s -checks='-*,llvm-namespace-comment' -- 2>&1 | FileCheck %s --check-prefix=CHECK-WARN -implicit-check-not='{{warning|error}}:'
+// RUN: not clang-tidy %s -checks='-*,llvm-namespace-comment' -warnings-as-errors='llvm-namespace-comment' -- 2>&1 | FileCheck %s --check-prefix=CHECK-WERR -implicit-check-not='{{warning|error}}:'
+// RUN: not clang-tidy %s -checks='-*,llvm-namespace-comment' -warnings-as-errors='llvm-namespace-comment' -quiet -- 2>&1 | FileCheck %s --check-prefix=CHECK-WERR-QUIET -implicit-check-not='{{warning|error}}:'
+
+namespace i {
+}
+// CHECK-WARN: warning: namespace 'i' not terminated with a closing comment [llvm-namespace-comment]
+// CHECK-WERR: error: namespace 'i' not terminated with a closing comment [llvm-namespace-comment,-warnings-as-errors]
+// CHECK-WERR-QUIET: error: namespace 'i' not terminated with a closing comment [llvm-namespace-comment,-warnings-as-errors]
+
+// CHECK-WARN-NOT: treated as
+// CHECK-WERR: 1 warning treated as error
+// CHECK-WERR-QUIET-NOT: treated as
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