SFTP: add more unit tests
SFTP Functional tests: Keep story linear.
SFTP Functional tests: Make use of assertNotSame
SFTP: last commit had a few ommissions
Merge pull request #346 from terrafrost/sftp-fix-last-commit-ommissions

SFTP: last commit had a few ommissions

* terrafrost/sftp-fix-last-commit-ommissions:
  SFTP: last commit had a few ommissions
Merge pull request #344 from bantu/sftp-unit-test-updates

Sftp functional test updates

* bantu/sftp-unit-test-updates:
  SFTP: last commit had a few ommissions
  SFTP Functional tests: Make use of assertNotSame
  SFTP Functional tests: Keep story linear.
  SFTP: add more unit tests
SFTP: Use the correct stat cache property: stat_cache
Merge pull request #347 from bantu/wrong-stat-cache-property

SFTP: Use the correct stat cache property: stat_cache

* bantu/wrong-stat-cache-property:
  SFTP: Use the correct stat cache property: stat_cache