| /* |
| * |
| * Copyright 2022 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. |
| * |
| */ |
| |
| package test |
| |
| import ( |
| "context" |
| "strings" |
| "testing" |
| "time" |
| |
| "google.golang.org/grpc" |
| "google.golang.org/grpc/balancer" |
| "google.golang.org/grpc/balancer/base" |
| "google.golang.org/grpc/codes" |
| "google.golang.org/grpc/connectivity" |
| "google.golang.org/grpc/internal/balancer/stub" |
| iresolver "google.golang.org/grpc/internal/resolver" |
| "google.golang.org/grpc/internal/stubserver" |
| "google.golang.org/grpc/resolver" |
| "google.golang.org/grpc/resolver/manual" |
| "google.golang.org/grpc/status" |
| testpb "google.golang.org/grpc/test/grpc_testing" |
| ) |
| |
| func (s) TestConfigSelectorStatusCodes(t *testing.T) { |
| testCases := []struct { |
| name string |
| csErr error |
| want error |
| }{{ |
| name: "legal status code", |
| csErr: status.Errorf(codes.Unavailable, "this error is fine"), |
| want: status.Errorf(codes.Unavailable, "this error is fine"), |
| }, { |
| name: "illegal status code", |
| csErr: status.Errorf(codes.NotFound, "this error is bad"), |
| want: status.Errorf(codes.Internal, "this error is bad"), |
| }} |
| |
| for _, tc := range testCases { |
| t.Run(tc.name, func(t *testing.T) { |
| ss := &stubserver.StubServer{ |
| EmptyCallF: func(ctx context.Context, in *testpb.Empty) (*testpb.Empty, error) { |
| return &testpb.Empty{}, nil |
| }, |
| } |
| ss.R = manual.NewBuilderWithScheme("confSel") |
| |
| if err := ss.Start(nil); err != nil { |
| t.Fatalf("Error starting endpoint server: %v", err) |
| } |
| defer ss.Stop() |
| |
| state := iresolver.SetConfigSelector(resolver.State{ |
| Addresses: []resolver.Address{{Addr: ss.Address}}, |
| ServiceConfig: parseServiceConfig(t, ss.R, "{}"), |
| }, funcConfigSelector{ |
| f: func(i iresolver.RPCInfo) (*iresolver.RPCConfig, error) { |
| return nil, tc.csErr |
| }, |
| }) |
| ss.R.UpdateState(state) // Blocks until config selector is applied |
| |
| ctx, cancel := context.WithTimeout(context.Background(), defaultTestTimeout) |
| defer cancel() |
| if _, err := ss.Client.EmptyCall(ctx, &testpb.Empty{}); status.Code(err) != status.Code(tc.want) || !strings.Contains(err.Error(), status.Convert(tc.want).Message()) { |
| t.Fatalf("client.EmptyCall(_, _) = _, %v; want _, %v", err, tc.want) |
| } |
| }) |
| } |
| } |
| |
| func (s) TestPickerStatusCodes(t *testing.T) { |
| testCases := []struct { |
| name string |
| pickerErr error |
| want error |
| }{{ |
| name: "legal status code", |
| pickerErr: status.Errorf(codes.Unavailable, "this error is fine"), |
| want: status.Errorf(codes.Unavailable, "this error is fine"), |
| }, { |
| name: "illegal status code", |
| pickerErr: status.Errorf(codes.NotFound, "this error is bad"), |
| want: status.Errorf(codes.Internal, "this error is bad"), |
| }} |
| |
| for _, tc := range testCases { |
| t.Run(tc.name, func(t *testing.T) { |
| ss := &stubserver.StubServer{ |
| EmptyCallF: func(ctx context.Context, in *testpb.Empty) (*testpb.Empty, error) { |
| return &testpb.Empty{}, nil |
| }, |
| } |
| |
| if err := ss.Start(nil); err != nil { |
| t.Fatalf("Error starting endpoint server: %v", err) |
| } |
| defer ss.Stop() |
| |
| // Create a stub balancer that creates a picker that always returns |
| // an error. |
| sbf := stub.BalancerFuncs{ |
| UpdateClientConnState: func(d *stub.BalancerData, _ balancer.ClientConnState) error { |
| d.ClientConn.UpdateState(balancer.State{ |
| ConnectivityState: connectivity.TransientFailure, |
| Picker: base.NewErrPicker(tc.pickerErr), |
| }) |
| return nil |
| }, |
| } |
| stub.Register("testPickerStatusCodesBalancer", sbf) |
| |
| ss.NewServiceConfig(`{"loadBalancingConfig": [{"testPickerStatusCodesBalancer":{}}] }`) |
| |
| // Make calls until pickerErr is received. |
| ctx, cancel := context.WithTimeout(context.Background(), defaultTestTimeout) |
| defer cancel() |
| |
| var lastErr error |
| for ctx.Err() == nil { |
| if _, lastErr = ss.Client.EmptyCall(ctx, &testpb.Empty{}); status.Code(lastErr) == status.Code(tc.want) && strings.Contains(lastErr.Error(), status.Convert(tc.want).Message()) { |
| // Success! |
| return |
| } |
| time.Sleep(time.Millisecond) |
| } |
| |
| t.Fatalf("client.EmptyCall(_, _) = _, %v; want _, %v", lastErr, tc.want) |
| }) |
| } |
| } |
| |
| func (s) TestCallCredsFromDialOptionsStatusCodes(t *testing.T) { |
| testCases := []struct { |
| name string |
| credsErr error |
| want error |
| }{{ |
| name: "legal status code", |
| credsErr: status.Errorf(codes.Unavailable, "this error is fine"), |
| want: status.Errorf(codes.Unavailable, "this error is fine"), |
| }, { |
| name: "illegal status code", |
| credsErr: status.Errorf(codes.NotFound, "this error is bad"), |
| want: status.Errorf(codes.Internal, "this error is bad"), |
| }} |
| |
| for _, tc := range testCases { |
| t.Run(tc.name, func(t *testing.T) { |
| ss := &stubserver.StubServer{ |
| EmptyCallF: func(ctx context.Context, in *testpb.Empty) (*testpb.Empty, error) { |
| return &testpb.Empty{}, nil |
| }, |
| } |
| |
| errChan := make(chan error, 1) |
| creds := &testPerRPCCredentials{errChan: errChan} |
| |
| if err := ss.Start(nil, grpc.WithPerRPCCredentials(creds)); err != nil { |
| t.Fatalf("Error starting endpoint server: %v", err) |
| } |
| defer ss.Stop() |
| |
| ctx, cancel := context.WithTimeout(context.Background(), defaultTestTimeout) |
| defer cancel() |
| |
| errChan <- tc.credsErr |
| |
| if _, err := ss.Client.EmptyCall(ctx, &testpb.Empty{}); status.Code(err) != status.Code(tc.want) || !strings.Contains(err.Error(), status.Convert(tc.want).Message()) { |
| t.Fatalf("client.EmptyCall(_, _) = _, %v; want _, %v", err, tc.want) |
| } |
| }) |
| } |
| } |
| |
| func (s) TestCallCredsFromCallOptionsStatusCodes(t *testing.T) { |
| testCases := []struct { |
| name string |
| credsErr error |
| want error |
| }{{ |
| name: "legal status code", |
| credsErr: status.Errorf(codes.Unavailable, "this error is fine"), |
| want: status.Errorf(codes.Unavailable, "this error is fine"), |
| }, { |
| name: "illegal status code", |
| credsErr: status.Errorf(codes.NotFound, "this error is bad"), |
| want: status.Errorf(codes.Internal, "this error is bad"), |
| }} |
| |
| for _, tc := range testCases { |
| t.Run(tc.name, func(t *testing.T) { |
| ss := &stubserver.StubServer{ |
| EmptyCallF: func(ctx context.Context, in *testpb.Empty) (*testpb.Empty, error) { |
| return &testpb.Empty{}, nil |
| }, |
| } |
| |
| errChan := make(chan error, 1) |
| creds := &testPerRPCCredentials{errChan: errChan} |
| |
| if err := ss.Start(nil); err != nil { |
| t.Fatalf("Error starting endpoint server: %v", err) |
| } |
| defer ss.Stop() |
| |
| ctx, cancel := context.WithTimeout(context.Background(), defaultTestTimeout) |
| defer cancel() |
| |
| errChan <- tc.credsErr |
| |
| if _, err := ss.Client.EmptyCall(ctx, &testpb.Empty{}, grpc.PerRPCCredentials(creds)); status.Code(err) != status.Code(tc.want) || !strings.Contains(err.Error(), status.Convert(tc.want).Message()) { |
| t.Fatalf("client.EmptyCall(_, _) = _, %v; want _, %v", err, tc.want) |
| } |
| }) |
| } |
| } |