Shared channels auto-share DM & group messages (#26097)

* option for auto inviting plugin to all shared channels.
* auto-invite remotes to shared channels when flag set

server/channels/app/post_test.go

@@ -2985,11 +2985,11 @@ func TestReplyToPostWithLag(t *testing.T) {
 
 func TestSharedChannelSyncForPostActions(t *testing.T) {
 	t.Run("creating a post in a shared channel performs a content sync when sync service is running on that node", func(t *testing.T) {
-		th := Setup(t).InitBasic()
+		th := setupSharedChannels(t).InitBasic()
 		defer th.TearDown()
 
-		remoteClusterService := NewMockSharedChannelService(nil)
-		th.Server.SetSharedChannelSyncService(remoteClusterService)
+		sharedChannelService := NewMockSharedChannelService(th.Server.GetSharedChannelSyncService())
+		th.Server.SetSharedChannelSyncService(sharedChannelService)
 		testCluster := &testlib.FakeClusterInterface{}
 		th.Server.Platform().SetCluster(testCluster)
 
@@ -3004,16 +3004,16 @@ func TestSharedChannelSyncForPostActions(t *testing.T) {
 		}, channel, false, true)
 		require.Nil(t, err, "Creating a post should not error")
 
-		require.Len(t, remoteClusterService.channelNotifications, 1)
-		assert.Equal(t, channel.Id, remoteClusterService.channelNotifications[0])
+		require.Len(t, sharedChannelService.channelNotifications, 1)
+		assert.Equal(t, channel.Id, sharedChannelService.channelNotifications[0])
 	})
 
 	t.Run("updating a post in a shared channel performs a content sync when sync service is running on that node", func(t *testing.T) {
-		th := Setup(t).InitBasic()
+		th := setupSharedChannels(t).InitBasic()
 		defer th.TearDown()
 
-		remoteClusterService := NewMockSharedChannelService(nil)
-		th.Server.SetSharedChannelSyncService(remoteClusterService)
+		sharedChannelService := NewMockSharedChannelService(th.Server.GetSharedChannelSyncService())
+		th.Server.SetSharedChannelSyncService(sharedChannelService)
 		testCluster := &testlib.FakeClusterInterface{}
 		th.Server.Platform().SetCluster(testCluster)
 
@@ -3031,17 +3031,17 @@ func TestSharedChannelSyncForPostActions(t *testing.T) {
 		_, err = th.App.UpdatePost(th.Context, post, true)
 		require.Nil(t, err, "Updating a post should not error")
 
-		require.Len(t, remoteClusterService.channelNotifications, 2)
-		assert.Equal(t, channel.Id, remoteClusterService.channelNotifications[0])
-		assert.Equal(t, channel.Id, remoteClusterService.channelNotifications[1])
+		require.Len(t, sharedChannelService.channelNotifications, 2)
+		assert.Equal(t, channel.Id, sharedChannelService.channelNotifications[0])
+		assert.Equal(t, channel.Id, sharedChannelService.channelNotifications[1])
 	})
 
 	t.Run("deleting a post in a shared channel performs a content sync when sync service is running on that node", func(t *testing.T) {
-		th := Setup(t).InitBasic()
+		th := setupSharedChannels(t).InitBasic()
 		defer th.TearDown()
 
-		remoteClusterService := NewMockSharedChannelService(nil)
-		th.Server.SetSharedChannelSyncService(remoteClusterService)
+		sharedChannelService := NewMockSharedChannelService(th.Server.GetSharedChannelSyncService())
+		th.Server.SetSharedChannelSyncService(sharedChannelService)
 		testCluster := &testlib.FakeClusterInterface{}
 		th.Server.Platform().SetCluster(testCluster)
 
@@ -3060,10 +3060,10 @@ func TestSharedChannelSyncForPostActions(t *testing.T) {
 		require.Nil(t, err, "Deleting a post should not error")
 
 		// one creation and two deletes
-		require.Len(t, remoteClusterService.channelNotifications, 3)
-		assert.Equal(t, channel.Id, remoteClusterService.channelNotifications[0])
-		assert.Equal(t, channel.Id, remoteClusterService.channelNotifications[1])
-		assert.Equal(t, channel.Id, remoteClusterService.channelNotifications[2])
+		require.Len(t, sharedChannelService.channelNotifications, 3)
+		assert.Equal(t, channel.Id, sharedChannelService.channelNotifications[0])
+		assert.Equal(t, channel.Id, sharedChannelService.channelNotifications[1])
+		assert.Equal(t, channel.Id, sharedChannelService.channelNotifications[2])
 	})
 }