1 files changed, 80 insertions, 0 deletions
diff --git a/grpc/test/core/security/cel_authorization_engine_test.cc b/grpc/test/core/security/cel_authorization_engine_test.cc
new file mode 100644
index 00000000..4c94a87d
--- /dev/null
+++ b/grpc/test/core/security/cel_authorization_engine_test.cc
@@ -0,0 +1,80 @@
+// Copyright 2020 gRPC authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "src/core/lib/security/authorization/cel_authorization_engine.h"
+
+#include <gtest/gtest.h>
+
+namespace grpc_core {
+
+class CelAuthorizationEngineTest : public ::testing::Test {
+ protected:
+  void SetUp() override {
+    deny_policy_ = envoy_config_rbac_v3_RBAC_new(arena_.ptr());
+    envoy_config_rbac_v3_RBAC_set_action(deny_policy_, 1);
+    allow_policy_ = envoy_config_rbac_v3_RBAC_new(arena_.ptr());
+    envoy_config_rbac_v3_RBAC_set_action(allow_policy_, 0);
+  }
+  upb::Arena arena_;
+  envoy_config_rbac_v3_RBAC* deny_policy_;
+  envoy_config_rbac_v3_RBAC* allow_policy_;
+};
+
+TEST_F(CelAuthorizationEngineTest, CreateEngineSuccessOnePolicy) {
+  std::vector<envoy_config_rbac_v3_RBAC*> policies{allow_policy_};
+  std::unique_ptr<CelAuthorizationEngine> engine =
+      CelAuthorizationEngine::CreateCelAuthorizationEngine(policies);
+  EXPECT_NE(engine, nullptr)
+      << "Error: Failed to create CelAuthorizationEngine with one policy.";
+}
+
+TEST_F(CelAuthorizationEngineTest, CreateEngineSuccessTwoPolicies) {
+  std::vector<envoy_config_rbac_v3_RBAC*> policies{deny_policy_, allow_policy_};
+  std::unique_ptr<CelAuthorizationEngine> engine =
+      CelAuthorizationEngine::CreateCelAuthorizationEngine(policies);
+  EXPECT_NE(engine, nullptr)
+      << "Error: Failed to create CelAuthorizationEngine with two policies.";
+}
+
+TEST_F(CelAuthorizationEngineTest, CreateEngineFailNoPolicies) {
+  std::vector<envoy_config_rbac_v3_RBAC*> policies{};
+  std::unique_ptr<CelAuthorizationEngine> engine =
+      CelAuthorizationEngine::CreateCelAuthorizationEngine(policies);
+  EXPECT_EQ(engine, nullptr)
+      << "Error: Created CelAuthorizationEngine without policies.";
+}
+
+TEST_F(CelAuthorizationEngineTest, CreateEngineFailTooManyPolicies) {
+  std::vector<envoy_config_rbac_v3_RBAC*> policies{deny_policy_, allow_policy_,
+                                                   deny_policy_};
+  std::unique_ptr<CelAuthorizationEngine> engine =
+      CelAuthorizationEngine::CreateCelAuthorizationEngine(policies);
+  EXPECT_EQ(engine, nullptr)
+      << "Error: Created CelAuthorizationEngine with more than two policies.";
+}
+
+TEST_F(CelAuthorizationEngineTest, CreateEngineFailWrongPolicyOrder) {
+  std::vector<envoy_config_rbac_v3_RBAC*> policies{allow_policy_, deny_policy_};
+  std::unique_ptr<CelAuthorizationEngine> engine =
+      CelAuthorizationEngine::CreateCelAuthorizationEngine(policies);
+  EXPECT_EQ(engine, nullptr) << "Error: Created CelAuthorizationEngine with "
+                                "policies in the wrong order.";
+}
+
+}  // namespace grpc_core
+
+int main(int argc, char** argv) {
+  ::testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}