Streams (#47)

* Streams Service (WIP)

* Complete Streams Service

streams/handler/create_conversation_test.go

@@ -0,0 +1,60 @@
+package handler_test
+
+import (
+	"context"
+	"testing"
+
+	"github.com/micro/services/streams/handler"
+	pb "github.com/micro/services/streams/proto"
+	"google.golang.org/protobuf/types/known/timestamppb"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestCreateConversation(t *testing.T) {
+	tt := []struct {
+		Name    string
+		GroupID string
+		Topic   string
+		Error   error
+	}{
+		{
+			Name:  "MissingGroupID",
+			Topic: "HelloWorld",
+			Error: handler.ErrMissingGroupID,
+		},
+		{
+			Name:    "MissingTopic",
+			GroupID: uuid.New().String(),
+			Error:   handler.ErrMissingTopic,
+		},
+		{
+			Name:    "Valid",
+			GroupID: uuid.New().String(),
+			Topic:   "HelloWorld",
+		},
+	}
+
+	h := testHandler(t)
+	for _, tc := range tt {
+		t.Run(tc.Name, func(t *testing.T) {
+			var rsp pb.CreateConversationResponse
+			err := h.CreateConversation(context.TODO(), &pb.CreateConversationRequest{
+				Topic: tc.Topic, GroupId: tc.GroupID,
+			}, &rsp)
+
+			assert.Equal(t, tc.Error, err)
+			if tc.Error != nil {
+				assert.Nil(t, rsp.Conversation)
+				return
+			}
+
+			assertConversationsMatch(t, &pb.Conversation{
+				CreatedAt: timestamppb.New(h.Time()),
+				GroupId:   tc.GroupID,
+				Topic:     tc.Topic,
+			}, rsp.Conversation)
+		})
+	}
+}