auto callsite_loc3 = mlir::CallSiteLoc::get(loc_filtered2, loc3);

  // Test with filter on.
  StatusScopedDiagnosticHandler ssdh_filter(&context, false, true);
  emitError(callsite_loc) << "Error 1";
  emitError(callsite_loc2) << "Error 2";
  emitError(callsite_loc3) << "Error 3";
  Status s_filtered = ssdh_filter.ConsumeStatus();
  // Check for the files that should not be filtered.
  EXPECT_THAT(s_filtered.message(), HasSubstr("keras"));