diff --git a/internal/pkg/controller/modmeter_test.go b/internal/pkg/controller/modmeter_test.go
new file mode 100644
index 0000000..fb7df0f
--- /dev/null
+++ b/internal/pkg/controller/modmeter_test.go
@@ -0,0 +1,182 @@
+/*
+* Copyright 2022-present Open Networking Foundation
+* 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 controller
+
+import (
+	"context"
+	"sync"
+	"testing"
+	"voltha-go-controller/internal/pkg/holder"
+	"voltha-go-controller/internal/pkg/of"
+	"voltha-go-controller/internal/test/mocks"
+
+	"github.com/golang/mock/gomock"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestModMeterTask_Start(t *testing.T) {
+	type args struct {
+		ctx    context.Context
+		taskID uint8
+	}
+	tests := []struct {
+		name    string
+		args    args
+		wantErr bool
+	}{
+		{
+			name: "mmt.command == of.MeterCommandAdd",
+			args: args{
+				ctx:    context.Background(),
+				taskID: uint8(1),
+			},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			meters := make(map[uint32]*of.Meter)
+			meters[uint32(1)] = &of.Meter{
+				ID: uint32(1),
+			}
+			volthaClientMock := mocks.NewMockVolthaServiceClient(gomock.NewController(t))
+			mmt := &ModMeterTask{
+				meter: &of.Meter{
+					ID: uint32(1),
+				},
+				device: &Device{
+					meterLock: sync.RWMutex{},
+					meters:    meters,
+					State:     DeviceStateUP,
+					vclientHolder: &holder.VolthaServiceClientHolder{
+						VolthaSvcClient: volthaClientMock,
+					},
+				},
+			}
+			mmt.meter.ID = uint32(2)
+			dbintf := mocks.NewMockDBIntf(gomock.NewController(t))
+			db = dbintf
+			dbintf.EXPECT().DelDeviceMeter(gomock.Any(), gomock.Any(), gomock.Any()).Return(nil).AnyTimes()
+			volthaClientMock.EXPECT().UpdateLogicalDeviceMeterTable(gomock.Any(), gomock.Any()).Return(nil, nil).AnyTimes()
+			err := mmt.Start(tt.args.ctx, tt.args.taskID)
+			assert.Nil(t, err)
+		})
+	}
+}
+
+func TestNewModMeterTask(t *testing.T) {
+	type args struct {
+		ctx     context.Context
+		command of.MeterCommand
+		meter   *of.Meter
+		device  *Device
+	}
+	tests := []struct {
+		name string
+		args args
+		want *ModMeterTask
+	}{
+		{
+			name: "NewModMeterTask",
+			args: args{
+				ctx:     context.Background(),
+				command: of.MeterCommandAdd,
+				meter: &of.Meter{
+					ID: uint32(1),
+				},
+			},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got := NewModMeterTask(tt.args.ctx, tt.args.command, tt.args.meter, tt.args.device)
+			assert.NotNil(t, got)
+		})
+	}
+}
+
+func TestModMeterTask_Name(t *testing.T) {
+	tests := []struct {
+		name string
+		want string
+	}{
+		{
+			name: "ModMeterTask_Name",
+			want: "Add Flows Task",
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			mmt := &ModMeterTask{}
+			if got := mmt.Name(); got != tt.want {
+				t.Errorf("ModMeterTask.Name() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func TestModMeterTask_TaskID(t *testing.T) {
+	tests := []struct {
+		name string
+		want uint8
+	}{
+		{
+			name: "ModMeterTask_TaskID",
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			mmt := &ModMeterTask{}
+			if got := mmt.TaskID(); got != tt.want {
+				t.Errorf("ModMeterTask.TaskID() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func TestModMeterTask_Timestamp(t *testing.T) {
+	tests := []struct {
+		name string
+		want string
+	}{
+		{
+			name: "ModMeterTask_Timestamp",
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			mmt := &ModMeterTask{}
+			if got := mmt.Timestamp(); got != tt.want {
+				t.Errorf("ModMeterTask.Timestamp() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func TestModMeterTask_Stop(t *testing.T) {
+	tests := []struct {
+		name string
+	}{
+		{
+			name: "ModMeterTask_Stop",
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			mmt := &ModMeterTask{}
+			mmt.Stop()
+		})
+	}
+}