VOL-2640 Restructure openolt-adapter repo to best practices

Change-Id: Icead31e8ecb82ec75a22e66361fbf83f80136589
diff --git a/pkg/mocks/mockKVClient.go b/pkg/mocks/mockKVClient.go
new file mode 100644
index 0000000..f686ec1
--- /dev/null
+++ b/pkg/mocks/mockKVClient.go
@@ -0,0 +1,259 @@
+/*
+ * Copyright 2018-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 mocks provides the mocks for openolt-adapter.
+package mocks
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/opencord/voltha-lib-go/v3/pkg/log"
+	"github.com/opencord/voltha-openolt-adapter/internal/pkg/resourcemanager"
+
+	"github.com/opencord/voltha-lib-go/v3/pkg/db/kvstore"
+	ofp "github.com/opencord/voltha-protos/v3/go/openflow_13"
+	openolt "github.com/opencord/voltha-protos/v3/go/openolt"
+)
+
+const (
+	// MeterConfig meter to extarct meter
+	MeterConfig = "meter_id"
+	// TpIDPathSuffix to extract Techprofile
+	TpIDPathSuffix = "tp_id"
+	// FlowIDpool to extract Flow ids
+	FlowIDpool = "flow_id_pool"
+	// FlowIDs to extract flow_ids
+	FlowIDs = "flow_ids"
+	// FlowIDInfo  to extract flowId info
+	FlowIDInfo = "flow_id_info"
+	// GemportIDs to gemport_ids
+	GemportIDs = "gemport_ids"
+	// AllocIDs to extract alloc_ids
+	AllocIDs = "alloc_ids"
+	//FlowGroup flow_groups/<flow_group_id>
+	FlowGroup = "flow_groups"
+	//FlowGroupCached flow_groups_cached/<flow_group_id>
+	FlowGroupCached = "flow_groups_cached"
+)
+
+// MockKVClient mocks the AdapterProxy interface.
+type MockKVClient struct {
+}
+
+// List mock function implementation for KVClient
+func (kvclient *MockKVClient) List(ctx context.Context, key string) (map[string]*kvstore.KVPair, error) {
+	if key != "" {
+		maps := make(map[string]*kvstore.KVPair)
+		maps[key] = &kvstore.KVPair{Key: key}
+		return maps, nil
+	}
+	return nil, errors.New("key didn't find")
+}
+
+// Get mock function implementation for KVClient
+func (kvclient *MockKVClient) Get(ctx context.Context, key string) (*kvstore.KVPair, error) {
+	log.Debugw("Warning Warning Warning: Get of MockKVClient called", log.Fields{"key": key})
+	if key != "" {
+		log.Debug("Warning Key Not Blank")
+		if strings.Contains(key, "meter_id/{0,62,8}/{upstream}") {
+			meterConfig := ofp.OfpMeterConfig{
+				Flags:   0,
+				MeterId: 1,
+			}
+			str, _ := json.Marshal(meterConfig)
+			return kvstore.NewKVPair(key, string(str), "mock", 3000, 1), nil
+		}
+		if strings.Contains(key, MeterConfig) {
+			var bands []*ofp.OfpMeterBandHeader
+			bands = append(bands, &ofp.OfpMeterBandHeader{Type: ofp.OfpMeterBandType_OFPMBT_DSCP_REMARK,
+				Rate: 1024, Data: &ofp.OfpMeterBandHeader_DscpRemark{DscpRemark: &ofp.OfpMeterBandDscpRemark{PrecLevel: 2}}})
+
+			bands = append(bands, &ofp.OfpMeterBandHeader{Type: ofp.OfpMeterBandType_OFPMBT_DSCP_REMARK,
+				Rate: 1024, Data: &ofp.OfpMeterBandHeader_DscpRemark{DscpRemark: &ofp.OfpMeterBandDscpRemark{PrecLevel: 3}}})
+
+			sep := strings.Split(key, "/")[1]
+			val, _ := strconv.ParseInt(strings.Split(sep, ",")[1], 10, 32)
+			if uint32(val) > 1 {
+				meterConfig := &ofp.OfpMeterConfig{MeterId: uint32(val), Bands: bands}
+				str, _ := json.Marshal(meterConfig)
+
+				return kvstore.NewKVPair(key, str, "mock", 3000, 1), nil
+			}
+
+			if strings.Contains(key, "meter_id/{1,1,1}/{downstream}") {
+
+				band1 := &ofp.OfpMeterBandHeader{Type: ofp.OfpMeterBandType_OFPMBT_DROP, Rate: 1000, BurstSize: 5000}
+				band2 := &ofp.OfpMeterBandHeader{Type: ofp.OfpMeterBandType_OFPMBT_DROP, Rate: 2000, BurstSize: 5000}
+				bands := []*ofp.OfpMeterBandHeader{band1, band2}
+				ofpMeterConfig := &ofp.OfpMeterConfig{Flags: 1, MeterId: 1, Bands: bands}
+				str, _ := json.Marshal(ofpMeterConfig)
+				return kvstore.NewKVPair(key, str, "mock", 3000, 1), nil
+			}
+			if uint32(val) == 1 {
+				return nil, nil
+			}
+			return nil, errors.New("invalid meter")
+		}
+		if strings.Contains(key, TpIDPathSuffix) {
+			str, _ := json.Marshal(64)
+			return kvstore.NewKVPair(key, str, "mock", 3000, 1), nil
+		}
+		if strings.Contains(key, FlowIDpool) {
+			log.Debug("Error Error Error Key:", FlowIDpool)
+			data := make(map[string]interface{})
+			data["pool"] = "1024"
+			data["start_idx"] = 1
+			data["end_idx"] = 1024
+			str, _ := json.Marshal(data)
+			return kvstore.NewKVPair(key, str, "mock", 3000, 1), nil
+		}
+		if strings.Contains(key, FlowIDs) {
+			data := []uint32{1, 2}
+			log.Debug("Error Error Error Key:", FlowIDs)
+			str, _ := json.Marshal(data)
+			return kvstore.NewKVPair(key, str, "mock", 3000, 1), nil
+		}
+		if strings.Contains(key, FlowIDInfo) {
+
+			data := []resourcemanager.FlowInfo{
+				{
+					Flow:            &openolt.Flow{FlowId: 1, OnuId: 1, UniId: 1, GemportId: 1},
+					FlowStoreCookie: uint64(48132224281636694),
+					LogicalFlowID:   1,
+				},
+			}
+			log.Debug("Error Error Error Key:", FlowIDs)
+			str, _ := json.Marshal(data)
+			return kvstore.NewKVPair(key, str, "mock", 3000, 1), nil
+		}
+		if strings.Contains(key, GemportIDs) {
+			log.Debug("Error Error Error Key:", GemportIDs)
+			str, _ := json.Marshal(1)
+			return kvstore.NewKVPair(key, str, "mock", 3000, 1), nil
+		}
+		if strings.Contains(key, AllocIDs) {
+			log.Debug("Error Error Error Key:", AllocIDs)
+			str, _ := json.Marshal(1)
+			return kvstore.NewKVPair(key, str, "mock", 3000, 1), nil
+		}
+		if strings.Contains(key, FlowGroup) || strings.Contains(key, FlowGroupCached) {
+			log.Debug("Error Error Error Key:", FlowGroup)
+			groupInfo := resourcemanager.GroupInfo{
+				GroupID:  2,
+				OutPorts: []uint32{1},
+			}
+			str, _ := json.Marshal(&groupInfo)
+			return kvstore.NewKVPair(key, str, "mock", 3000, 1), nil
+		}
+
+		maps := make(map[string]*kvstore.KVPair)
+		maps[key] = &kvstore.KVPair{Key: key}
+		return maps[key], nil
+	}
+	return nil, errors.New("key didn't find")
+}
+
+// Put mock function implementation for KVClient
+func (kvclient *MockKVClient) Put(ctx context.Context, key string, value interface{}) error {
+	if key != "" {
+
+		return nil
+	}
+	return errors.New("key didn't find")
+}
+
+// Delete mock function implementation for KVClient
+func (kvclient *MockKVClient) Delete(ctx context.Context, key string) error {
+	if key == "" {
+		return errors.New("key didn't find")
+	}
+	return nil
+}
+
+// Reserve mock function implementation for KVClient
+func (kvclient *MockKVClient) Reserve(ctx context.Context, key string, value interface{}, ttl int64) (interface{}, error) {
+	if key != "" {
+		maps := make(map[string]*kvstore.KVPair)
+		maps[key] = &kvstore.KVPair{Key: key}
+		return maps[key], nil
+	}
+	return nil, errors.New("key didn't find")
+}
+
+// ReleaseReservation mock function implementation for KVClient
+func (kvclient *MockKVClient) ReleaseReservation(ctx context.Context, key string) error {
+	// return nil
+	if key == "" {
+		return errors.New("key didn't find")
+	}
+	return nil
+}
+
+// ReleaseAllReservations mock function implementation for KVClient
+func (kvclient *MockKVClient) ReleaseAllReservations(ctx context.Context) error {
+	return nil
+}
+
+// RenewReservation mock function implementation for KVClient
+func (kvclient *MockKVClient) RenewReservation(ctx context.Context, key string) error {
+	// return nil
+	if key == "" {
+		return errors.New("key didn't find")
+	}
+	return nil
+}
+
+// Watch mock function implementation for KVClient
+func (kvclient *MockKVClient) Watch(ctx context.Context, key string, withPrefix bool) chan *kvstore.Event {
+	return nil
+	// if key == "" {
+	// 	return nil
+	// }
+	// return &kvstore.Event{EventType: 1, Key: key}
+}
+
+// AcquireLock mock function implementation for KVClient
+func (kvclient *MockKVClient) AcquireLock(ctx context.Context, lockName string, timeout int) error {
+	return nil
+}
+
+// ReleaseLock mock function implementation for KVClient
+func (kvclient *MockKVClient) ReleaseLock(lockName string) error {
+	return nil
+}
+
+// IsConnectionUp mock function implementation for KVClient
+func (kvclient *MockKVClient) IsConnectionUp(ctx context.Context) bool {
+	// timeout in second
+	t, _ := ctx.Deadline()
+	if t.Second()-time.Now().Second() < 1 {
+		return false
+	}
+	return true
+}
+
+// CloseWatch mock function implementation for KVClient
+func (kvclient *MockKVClient) CloseWatch(key string, ch chan *kvstore.Event) {
+}
+
+// Close mock function implementation for KVClient
+func (kvclient *MockKVClient) Close() {
+}