PLT-7537: Move channel CLI command posts system message to channel. (#8161)

* [PTL-7537] implement feature and test

* [PTL-7537] Update feature to post the the room requiring a username flag to be used

* [PTL-7537] update tests with username

* update test to remove changes to the test helper struct

* use the basic team and user

2 files changed, 40 insertions, 4 deletions

diff --git a/cmd/platform/channel.go b/cmd/platform/channel.go
index 98bdcebb8..5d86ad9da 100644
--- a/cmd/platform/channel.go
+++ b/cmd/platform/channel.go
@@ -106,6 +106,8 @@ func init() {
 	channelCreateCmd.Flags().String("purpose", "", "Channel purpose")
 	channelCreateCmd.Flags().Bool("private", false, "Create a private channel.")
 
+	moveChannelsCmd.Flags().String("username", "", "Required. Username who is moving the channel.")
+
 	deleteChannelsCmd.Flags().Bool("confirm", false, "Confirm you really want to delete the channels.")
 
 	modifyChannelCmd.Flags().Bool("private", false, "Convert the channel to a private channel")
@@ -319,26 +321,33 @@ func moveChannelsCmdF(cmd *cobra.Command, args []string) error {
 		return errors.New("Unable to find destination team '" + args[0] + "'")
 	}
 
+	username, erru := cmd.Flags().GetString("username")
+	if erru != nil || username == "" {
+		return errors.New("Username is required")
+	}
+	user := getUserFromUserArg(a, username)
+
 	channels := getChannelsFromChannelArgs(a, args[1:])
 	for i, channel := range channels {
 		if channel == nil {
 			CommandPrintErrorln("Unable to find channel '" + args[i] + "'")
 			continue
 		}
-		if err := moveChannel(a, team, channel); err != nil {
+		originTeamID := channel.TeamId
+		if err := moveChannel(a, team, channel, user); err != nil {
 			CommandPrintErrorln("Unable to move channel '" + channel.Name + "' error: " + err.Error())
 		} else {
-			CommandPrettyPrintln("Moved channel '" + channel.Name + "'")
+			CommandPrettyPrintln("Moved channel '" + channel.Name + "' to " + team.Name + "(" + team.Id + ") from " + originTeamID + ".")
 		}
 	}
 
 	return nil
 }
 
-func moveChannel(a *app.App, team *model.Team, channel *model.Channel) *model.AppError {
+func moveChannel(a *app.App, team *model.Team, channel *model.Channel, user *model.User) *model.AppError {
 	oldTeamId := channel.TeamId
 
-	if err := a.MoveChannel(team, channel); err != nil {
+	if err := a.MoveChannel(team, channel, user); err != nil {
 		return err
 	}
 
diff --git a/cmd/platform/channel_test.go b/cmd/platform/channel_test.go
index 1e6915679..cf8603cf3 100644
--- a/cmd/platform/channel_test.go
+++ b/cmd/platform/channel_test.go
@@ -44,6 +44,33 @@ func TestRemoveChannel(t *testing.T) {
 	checkCommand(t, "channel", "remove", th.BasicTeam.Name+":"+channel.Name, th.BasicUser2.Email)
 }
 
+func TestMoveChannel(t *testing.T) {
+	th := api.Setup().InitBasic()
+	defer th.TearDown()
+
+	client := th.BasicClient
+	team1 := th.BasicTeam
+	team2 := th.CreateTeam(client)
+	user1 := th.BasicUser
+	th.LinkUserToTeam(user1, team2)
+	channel := th.BasicChannel
+
+	th.LinkUserToTeam(user1, team1)
+	th.LinkUserToTeam(user1, team2)
+
+	adminEmail := user1.Email
+	adminUsername := user1.Username
+	origin := team1.Name + ":" + channel.Name
+	dest := team2.Name
+
+	checkCommand(t, "channel", "add", origin, adminEmail)
+
+	// should fail with nill because errors are logged instead of returned when a channel does not exist
+	require.Nil(t, runCommand(t, "channel", "move", dest, team1.Name+":doesnotexist", "--username", adminUsername))
+
+	checkCommand(t, "channel", "move", dest, origin, "--username", adminUsername)
+}
+
 func TestListChannels(t *testing.T) {
 	th := api.Setup().InitBasic()
 	defer th.TearDown()