go-sdk/client/client_test.go

/*
Copyright 2021 The Dapr 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 client

import (
	"context"
	"encoding/json"
	"fmt"
	"net"
	"os"
	"testing"

	"github.com/golang/protobuf/ptypes/empty"
	"github.com/stretchr/testify/assert"

	"google.golang.org/grpc"
	"google.golang.org/grpc/test/bufconn"
	"google.golang.org/protobuf/types/known/anypb"

	commonv1pb "github.com/dapr/dapr/pkg/proto/common/v1"
	pb "github.com/dapr/dapr/pkg/proto/runtime/v1"
)

const (
	testBufSize = 1024 * 1024
)

var testClient Client

func TestMain(m *testing.M) {
	ctx := context.Background()
	c, f := getTestClient(ctx)
	testClient = c
	r := m.Run()
	f()
	os.Exit(r)
}

func TestNewClient(t *testing.T) {
	t.Run("return error when unable to reach server", func(t *testing.T) {
		_, err := NewClientWithPort("1")
		assert.Error(t, err)
	})

	t.Run("no arg for with port", func(t *testing.T) {
		_, err := NewClientWithPort("")
		assert.Error(t, err)
	})

	t.Run("no arg for with address", func(t *testing.T) {
		_, err := NewClientWithAddress("")
		assert.Error(t, err)
	})

	t.Run("new client closed with empty token", func(t *testing.T) {
		testClient.WithAuthToken("")
	})

	t.Run("new client with trace ID", func(t *testing.T) {
		_ = testClient.WithTraceID(context.Background(), "test")
	})
}

func TestShutdown(t *testing.T) {
	ctx := context.Background()

	t.Run("shutdown", func(t *testing.T) {
		err := testClient.Shutdown(ctx)
		assert.NoError(t, err)
	})
}

func getTestClient(ctx context.Context) (client Client, closer func()) {
	s := grpc.NewServer()
	pb.RegisterDaprServer(s, &testDaprServer{
		state: make(map[string][]byte),
	})

	l := bufconn.Listen(testBufSize)
	go func() {
		if err := s.Serve(l); err != nil && err.Error() != "closed" {
			logger.Fatalf("test server exited with error: %v", err)
		}
	}()

	d := grpc.WithContextDialer(func(context.Context, string) (net.Conn, error) {
		return l.Dial()
	})

	c, err := grpc.DialContext(ctx, "", d, grpc.WithInsecure())
	if err != nil {
		logger.Fatalf("failed to dial test context: %v", err)
	}

	closer = func() {
		l.Close()
		s.Stop()
	}

	client = NewClientWithConnection(c)
	return
}

type testDaprServer struct {
	pb.UnimplementedDaprServer
	state map[string][]byte
}

func (s *testDaprServer) InvokeService(ctx context.Context, req *pb.InvokeServiceRequest) (*commonv1pb.InvokeResponse, error) {
	if req.Message == nil {
		return &commonv1pb.InvokeResponse{
			ContentType: "text/plain",
			Data: &anypb.Any{
				Value: []byte("pong"),
			},
		}, nil
	}
	return &commonv1pb.InvokeResponse{
		ContentType: req.Message.ContentType,
		Data:        req.Message.Data,
	}, nil
}

func (s *testDaprServer) GetState(ctx context.Context, req *pb.GetStateRequest) (*pb.GetStateResponse, error) {
	return &pb.GetStateResponse{
		Data: s.state[req.Key],
		Etag: "1",
	}, nil
}

func (s *testDaprServer) GetBulkState(ctx context.Context, in *pb.GetBulkStateRequest) (*pb.GetBulkStateResponse, error) {
	items := make([]*pb.BulkStateItem, 0)
	for _, k := range in.GetKeys() {
		if v, found := s.state[k]; found {
			item := &pb.BulkStateItem{
				Key:  k,
				Etag: "1",
				Data: v,
			}
			items = append(items, item)
		}
	}
	return &pb.GetBulkStateResponse{
		Items: items,
	}, nil
}

func (s *testDaprServer) SaveState(ctx context.Context, req *pb.SaveStateRequest) (*empty.Empty, error) {
	for _, item := range req.States {
		s.state[item.Key] = item.Value
	}
	return &empty.Empty{}, nil
}

func (s *testDaprServer) QueryStateAlpha1(ctx context.Context, req *pb.QueryStateRequest) (*pb.QueryStateResponse, error) {
	var v map[string]interface{}
	if err := json.Unmarshal([]byte(req.Query), &v); err != nil {
		return nil, err
	}

	ret := &pb.QueryStateResponse{
		Results: make([]*pb.QueryStateItem, 0, len(s.state)),
	}
	for key, value := range s.state {
		ret.Results = append(ret.Results, &pb.QueryStateItem{Key: key, Data: value})
	}
	return ret, nil
}

func (s *testDaprServer) DeleteState(ctx context.Context, req *pb.DeleteStateRequest) (*empty.Empty, error) {
	delete(s.state, req.Key)
	return &empty.Empty{}, nil
}

func (s *testDaprServer) DeleteBulkState(ctx context.Context, req *pb.DeleteBulkStateRequest) (*empty.Empty, error) {
	for _, item := range req.States {
		delete(s.state, item.Key)
	}
	return &empty.Empty{}, nil
}

func (s *testDaprServer) ExecuteStateTransaction(ctx context.Context, in *pb.ExecuteStateTransactionRequest) (*empty.Empty, error) {
	for _, op := range in.GetOperations() {
		item := op.GetRequest()
		switch opType := op.GetOperationType(); opType {
		case "upsert":
			s.state[item.Key] = item.Value
		case "delete":
			delete(s.state, item.Key)
		default:
			return &empty.Empty{}, fmt.Errorf("invalid operation type: %s", opType)
		}
	}
	return &empty.Empty{}, nil
}

func (s *testDaprServer) PublishEvent(ctx context.Context, req *pb.PublishEventRequest) (*empty.Empty, error) {
	return &empty.Empty{}, nil
}

func (s *testDaprServer) InvokeBinding(ctx context.Context, req *pb.InvokeBindingRequest) (*pb.InvokeBindingResponse, error) {
	if req.Data == nil {
		return &pb.InvokeBindingResponse{
			Data:     []byte("test"),
			Metadata: map[string]string{"k1": "v1", "k2": "v2"},
		}, nil
	}
	return &pb.InvokeBindingResponse{
		Data:     req.Data,
		Metadata: req.Metadata,
	}, nil
}

func (s *testDaprServer) GetSecret(ctx context.Context, req *pb.GetSecretRequest) (*pb.GetSecretResponse, error) {
	d := make(map[string]string)
	d["test"] = "value"
	return &pb.GetSecretResponse{
		Data: d,
	}, nil
}

func (s *testDaprServer) GetBulkSecret(ctx context.Context, req *pb.GetBulkSecretRequest) (*pb.GetBulkSecretResponse, error) {
	d := make(map[string]*pb.SecretResponse)
	d["test"] = &pb.SecretResponse{
		Secrets: map[string]string{
			"test": "value",
		},
	}
	return &pb.GetBulkSecretResponse{
		Data: d,
	}, nil
}

func (s *testDaprServer) RegisterActorReminder(ctx context.Context, req *pb.RegisterActorReminderRequest) (*empty.Empty, error) {
	return &empty.Empty{}, nil
}

func (s *testDaprServer) UnregisterActorReminder(ctx context.Context, req *pb.UnregisterActorReminderRequest) (*empty.Empty, error) {
	return &empty.Empty{}, nil
}

func (s *testDaprServer) InvokeActor(context.Context, *pb.InvokeActorRequest) (*pb.InvokeActorResponse, error) {
	return &pb.InvokeActorResponse{
		Data: []byte("mockValue"),
	}, nil
}

func (s *testDaprServer) RegisterActorTimer(context.Context, *pb.RegisterActorTimerRequest) (*empty.Empty, error) {
	return &empty.Empty{}, nil
}

func (s *testDaprServer) UnregisterActorTimer(context.Context, *pb.UnregisterActorTimerRequest) (*empty.Empty, error) {
	return &empty.Empty{}, nil
}

func (s *testDaprServer) Shutdown(ctx context.Context, req *empty.Empty) (*empty.Empty, error) {
	return &empty.Empty{}, nil
}