}

TEST(MlirOptimizationPassRegistry, RegisterPassesWithTheSamePriorityFails) {
  MlirOptimizationPassRegistry::Global().Add(
      0, std::make_unique<NiceMock<MockMlirOptimizationPass>>());
  EXPECT_DEATH(MlirOptimizationPassRegistry::Global().Add(
                   0, std::make_unique<NiceMock<MockMlirOptimizationPass>>()),
               "Pass priority must be unique.");
}