Add tests for error methods

src/ruby/spec/errors_spec.rb

@@ -0,0 +1,132 @@
+# Copyright 2019 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.
+
+require 'spec_helper'
+require 'google/protobuf/well_known_types'
+require_relative '../pb/src/proto/grpc/testing/messages_pb'
+
+describe GRPC::BadStatus do
+  describe :attributes do
+    it 'has attributes' do
+      code = 1
+      details = 'details'
+      metadata = { 'key' => 'val' }
+
+      exception = GRPC::BadStatus.new(code, details, metadata)
+
+      expect(exception.code).to eq code
+      expect(exception.details).to eq details
+      expect(exception.metadata).to eq metadata
+    end
+  end
+
+  describe :new_status_exception do
+    let(:codes_and_classes) do
+      [
+        [GRPC::Core::StatusCodes::OK, GRPC::Ok],
+        [GRPC::Core::StatusCodes::CANCELLED, GRPC::Cancelled],
+        [GRPC::Core::StatusCodes::UNKNOWN, GRPC::Unknown],
+        [GRPC::Core::StatusCodes::INVALID_ARGUMENT, GRPC::InvalidArgument],
+        [GRPC::Core::StatusCodes::DEADLINE_EXCEEDED, GRPC::DeadlineExceeded],
+        [GRPC::Core::StatusCodes::NOT_FOUND, GRPC::NotFound],
+        [GRPC::Core::StatusCodes::ALREADY_EXISTS, GRPC::AlreadyExists],
+        [GRPC::Core::StatusCodes::PERMISSION_DENIED, GRPC::PermissionDenied],
+        [GRPC::Core::StatusCodes::UNAUTHENTICATED, GRPC::Unauthenticated],
+        [GRPC::Core::StatusCodes::RESOURCE_EXHAUSTED, GRPC::ResourceExhausted],
+        [GRPC::Core::StatusCodes::FAILED_PRECONDITION, GRPC::FailedPrecondition],
+        [GRPC::Core::StatusCodes::ABORTED, GRPC::Aborted],
+        [GRPC::Core::StatusCodes::OUT_OF_RANGE, GRPC::OutOfRange],
+        [GRPC::Core::StatusCodes::UNIMPLEMENTED, GRPC::Unimplemented],
+        [GRPC::Core::StatusCodes::INTERNAL, GRPC::Internal],
+        [GRPC::Core::StatusCodes::UNAVAILABLE, GRPC::Unavailable],
+        [GRPC::Core::StatusCodes::DATA_LOSS, GRPC::DataLoss],
+        [99, GRPC::BadStatus] # Unknown codes default to BadStatus
+      ]
+    end
+
+    it 'maps codes to the correct error class' do
+      codes_and_classes.each do |code, grpc_error_class|
+        exception = GRPC::BadStatus.new_status_exception(code)
+
+        expect(exception).to be_a grpc_error_class
+      end
+    end
+  end
+
+  describe :to_status do
+    it 'gets status' do
+      code = 1
+      details = 'details'
+      metadata = { 'key' => 'val' }
+
+      exception = GRPC::BadStatus.new(code, details, metadata)
+      status = Struct::Status.new(code, details, metadata)
+
+      expect(exception.to_status).to eq status
+    end
+  end
+
+  describe :to_rpc_status do
+    let(:simple_request_any) do
+      Google::Protobuf::Any.new.tap do |any|
+        any.pack(
+          Grpc::Testing::SimpleRequest.new(
+            payload: Grpc::Testing::Payload.new(body: 'request')
+          )
+        )
+      end
+    end
+    let(:simple_response_any) do
+      Google::Protobuf::Any.new.tap do |any|
+        any.pack(
+          Grpc::Testing::SimpleResponse.new(
+            payload: Grpc::Testing::Payload.new(body: 'response')
+          )
+        )
+      end
+    end
+    let(:payload_any) do
+      Google::Protobuf::Any.new.tap do |any|
+        any.pack(Grpc::Testing::Payload.new(body: 'payload'))
+      end
+    end
+
+    it 'decodes proto values' do
+      rpc_status = Google::Rpc::Status.new(
+        code: 1,
+        message: 'matching message',
+        details: [simple_request_any, simple_response_any, payload_any]
+      )
+      rpc_status_proto = Google::Rpc::Status.encode(rpc_status)
+
+      code = 1
+      details = 'details'
+      metadata = { 'grpc-status-details-bin' => rpc_status_proto }
+
+      exception = GRPC::BadStatus.new(code, details, metadata)
+
+      expect(exception.to_rpc_status).to eq rpc_status
+    end
+
+    it 'does not raise when decoding a bad proto' do
+      code = 1
+      details = 'details'
+      metadata = { 'grpc-status-details-bin' => 'notavalidprotostream' }
+
+      exception = GRPC::BadStatus.new(code, details, metadata)
+
+      expect(exception.to_rpc_status).to be nil
+    end
+  end
+end