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/app/slashcommands/command_channel_purpose_test.go

@@ -0,0 +1,97 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package slashcommands
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+
+	"github.com/mattermost/mattermost-server/v6/model"
+)
+
+func TestPurposeProviderDoCommand(t *testing.T) {
+	th := setup(t).initBasic()
+	defer th.tearDown()
+
+	pp := PurposeProvider{}
+
+	// Try a public channel *with* permission.
+	th.addPermissionToRole(model.PermissionManagePublicChannelProperties.Id, model.ChannelUserRoleId)
+
+	args := &model.CommandArgs{
+		T:         func(s string, args ...any) string { return s },
+		ChannelId: th.BasicChannel.Id,
+		UserId:    th.BasicUser.Id,
+	}
+
+	for msg, expected := range map[string]string{
+		"":      "api.command_channel_purpose.message.app_error",
+		"hello": "",
+	} {
+		actual := pp.DoCommand(th.App, th.Context, args, msg).Text
+		assert.Equal(t, expected, actual)
+	}
+
+	// Try a public channel *without* permission.
+	th.removePermissionFromRole(model.PermissionManagePublicChannelProperties.Id, model.ChannelUserRoleId)
+
+	args = &model.CommandArgs{
+		T:         func(s string, args ...any) string { return s },
+		ChannelId: th.BasicChannel.Id,
+	}
+
+	actual := pp.DoCommand(th.App, th.Context, args, "hello").Text
+	assert.Equal(t, "api.command_channel_purpose.permission.app_error", actual)
+
+	// Try a private channel *with* permission.
+	privateChannel := th.createPrivateChannel(th.BasicTeam)
+
+	th.addPermissionToRole(model.PermissionManagePrivateChannelProperties.Id, model.ChannelUserRoleId)
+
+	args = &model.CommandArgs{
+		T:         func(s string, args ...any) string { return s },
+		ChannelId: privateChannel.Id,
+		UserId:    th.BasicUser.Id,
+	}
+
+	actual = pp.DoCommand(th.App, th.Context, args, "hello").Text
+	assert.Equal(t, "", actual)
+
+	// Try a private channel *without* permission.
+	th.removePermissionFromRole(model.PermissionManagePrivateChannelProperties.Id, model.ChannelUserRoleId)
+
+	args = &model.CommandArgs{
+		T:         func(s string, args ...any) string { return s },
+		ChannelId: privateChannel.Id,
+	}
+
+	actual = pp.DoCommand(th.App, th.Context, args, "hello").Text
+	assert.Equal(t, "api.command_channel_purpose.permission.app_error", actual)
+
+	// Try a group channel *with* being a member.
+	user1 := th.createUser()
+	user2 := th.createUser()
+
+	groupChannel := th.createGroupChannel(user1, user2)
+
+	args = &model.CommandArgs{
+		T:         func(s string, args ...any) string { return s },
+		ChannelId: groupChannel.Id,
+	}
+
+	actual = pp.DoCommand(th.App, th.Context, args, "hello").Text
+	assert.Equal(t, "api.command_channel_purpose.direct_group.app_error", actual)
+
+	// Try a direct channel *with* being a member.
+	directChannel := th.createDmChannel(user1)
+
+	args = &model.CommandArgs{
+		T:         func(s string, args ...any) string { return s },
+		ChannelId: directChannel.Id,
+	}
+
+	actual = pp.DoCommand(th.App, th.Context, args, "hello").Text
+	assert.Equal(t, "api.command_channel_purpose.direct_group.app_error", actual)
+}