Mono repo -> Master (#22553)

Combines the following repositories into one:

https://github.com/mattermost/mattermost-server
https://github.com/mattermost/mattermost-webapp
https://github.com/mattermost/focalboard
https://github.com/mattermost/mattermost-plugin-playbooks

server/channels/testlib/cluster.go

@@ -0,0 +1,105 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package testlib
+
+import (
+	"sync"
+
+	"github.com/mattermost/mattermost-server/v6/model"
+	"github.com/mattermost/mattermost-server/v6/server/channels/einterfaces"
+)
+
+type FakeClusterInterface struct {
+	clusterMessageHandler einterfaces.ClusterMessageHandler
+	mut                   sync.RWMutex
+	messages              []*model.ClusterMessage
+}
+
+func (c *FakeClusterInterface) StartInterNodeCommunication() {}
+
+func (c *FakeClusterInterface) StopInterNodeCommunication() {}
+
+func (c *FakeClusterInterface) RegisterClusterMessageHandler(event model.ClusterEvent, crm einterfaces.ClusterMessageHandler) {
+	c.clusterMessageHandler = crm
+}
+
+func (c *FakeClusterInterface) HealthScore() int {
+	return 0
+}
+
+func (c *FakeClusterInterface) GetClusterId() string { return "" }
+
+func (c *FakeClusterInterface) IsLeader() bool { return false }
+
+func (c *FakeClusterInterface) GetMyClusterInfo() *model.ClusterInfo { return nil }
+
+func (c *FakeClusterInterface) GetClusterInfos() []*model.ClusterInfo { return nil }
+
+func (c *FakeClusterInterface) SendClusterMessage(message *model.ClusterMessage) {
+	c.mut.Lock()
+	defer c.mut.Unlock()
+	c.messages = append(c.messages, message)
+}
+
+func (c *FakeClusterInterface) SendClusterMessageToNode(nodeID string, message *model.ClusterMessage) error {
+	c.mut.Lock()
+	defer c.mut.Unlock()
+	c.messages = append(c.messages, message)
+	return nil
+}
+
+func (c *FakeClusterInterface) NotifyMsg(buf []byte) {}
+
+func (c *FakeClusterInterface) GetClusterStats() ([]*model.ClusterStats, *model.AppError) {
+	return nil, nil
+}
+
+func (c *FakeClusterInterface) GetLogs(page, perPage int) ([]string, *model.AppError) {
+	return []string{}, nil
+}
+
+func (c *FakeClusterInterface) QueryLogs(page, perPage int) (map[string][]string, *model.AppError) {
+	return make(map[string][]string), nil
+}
+
+func (c *FakeClusterInterface) ConfigChanged(previousConfig *model.Config, newConfig *model.Config, sendToOtherServer bool) *model.AppError {
+	return nil
+}
+
+func (c *FakeClusterInterface) SendClearRoleCacheMessage() {
+	if c.clusterMessageHandler != nil {
+		c.clusterMessageHandler(&model.ClusterMessage{
+			Event: model.ClusterEventInvalidateCacheForRoles,
+		})
+	}
+}
+
+func (c *FakeClusterInterface) GetPluginStatuses() (model.PluginStatuses, *model.AppError) {
+	return nil, nil
+}
+
+func (c *FakeClusterInterface) GetMessages() []*model.ClusterMessage {
+	c.mut.RLock()
+	defer c.mut.RUnlock()
+	return c.messages
+}
+
+func (c *FakeClusterInterface) SelectMessages(filterCond func(message *model.ClusterMessage) bool) []*model.ClusterMessage {
+	c.mut.RLock()
+	defer c.mut.RUnlock()
+
+	filteredMessages := []*model.ClusterMessage{}
+	for _, msg := range c.messages {
+		if filterCond(msg) {
+			filteredMessages = append(filteredMessages, msg)
+		}
+	}
+	return filteredMessages
+}
+
+func (c *FakeClusterInterface) ClearMessages() {
+	c.mut.Lock()
+	defer c.mut.Unlock()
+	c.messages = nil
+}