[FtpUploadV1] Migrated legacy tests

[max-zaytsev]

Task name: FtpUploadV1

Description: Migrated legacy tests

Documentation changes required: No

Added unit tests: Yes

Attached related issue: #353

Checklist:

• Task version was bumped - please check instruction how to do it
• Checked that applied changes work as expected

[anatolybolshakov]

Thanks for migrating this! Do we need to remove legacy tests also?
I would also suggest to add some tests for successful - but maybe it makes sense to just create separate ticket for it.

[max-zaytsev]

@anatolybolshakov

Thanks for migrating this! Do we need to remove legacy tests also?

Removed

I would also suggest to add some tests for successful - but maybe it makes sense to just create separate ticket for it.

Created a ticket: #630