================
@@ -167,4 +176,159 @@ TEST(DiagnosticTest, storedDiagEmptyWarning) {
// Make sure an empty warning can round-trip with \c StoredDiagnostic.
Diags.Report(CaptureConsumer.StoredDiags.front());
}
+
+class SuppressionMappingTest : public testing::Test {
+public:
+ SuppressionMappingTest() {
+ Diags.setClient(&CaptureConsumer, /*ShouldOwnClient=*/false);
+ }
+
+protected:
+ llvm::IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem> FS =
+ llvm::makeIntrusiveRefCnt<llvm::vfs::InMemoryFileSystem>();
+ DiagnosticsEngine Diags{new DiagnosticIDs(), new DiagnosticOptions};
+
+ std::vector<StoredDiagnostic> takeDiags() {
+ return std::move(CaptureConsumer.StoredDiags);
+ }
+
+private:
+ class CaptureDiagnosticConsumer : public DiagnosticConsumer {
+ public:
+ std::vector<StoredDiagnostic> StoredDiags;
+
+ void HandleDiagnostic(DiagnosticsEngine::Level level,
+ const Diagnostic &Info) override {
+ StoredDiags.push_back(StoredDiagnostic(level, Info));
+ }
+ };
+ CaptureDiagnosticConsumer CaptureConsumer;
+};
+
+MATCHER_P(WithMessage, Msg, "has diagnostic message") {
+ return arg.getMessage() == Msg;
+}
+
+TEST_F(SuppressionMappingTest, MissingMappingFile) {
+ Diags.getDiagnosticOptions().DiagnosticSuppressionMappingsFile = "foo.txt";
+ clang::ProcessWarningOptions(Diags, Diags.getDiagnosticOptions(), *FS);
+ EXPECT_THAT(takeDiags(), testing::ElementsAre(WithMessage(
+ "no such file or directory: 'foo.txt'")));
----------------
bricknerb wrote:
We might care whether we propagate this as an error, warning etc (I guess we
could change that).
In another case we use `WithMessage()` below we test
`rr_drv_malformed_warning_suppression_mapping`, which I guess we should care
about more than just the text.
For consistency and making sure we have coverage, I suggest checking all the
interesting fields, and not just the text.
https://github.com/llvm/llvm-project/pull/112517
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