npm test errors for ssh authentication

Hi,

When I run the "npm test" command, two tests: "test-git-http-ssh.js"  and "test-put-file-http-ssh.js" fail with the following error:
ssh connection error:  { [Error: All configured authentication methods failed] level: 'client-authentication' }

Kindly let me know if I'm missing any dependency or any required configuration.

Thanks,
vserrao
