# Implementation of scenario steps

## Server aliases

    IMPLEMENTS GIVEN server is also known as (\S+)
    import yarnhelper
    h = yarnhelper.YarnHelper()
    h.set_variable('SERVER', h.get_next_match())

## HTTP requests

    IMPLEMENTS WHEN user fetches (\S+)
    import yarnhelper
    h = yarnhelper.YarnHelper()
    server = h.get_variable('SERVER')
    url = h.get_next_match()
    status, body = h.http_get(server, url)
    h.set_variable('http_status', status)
    h.set_variable('http_body', body)

    IMPLEMENTS THEN HTTP status is (\d+)
    import yarnhelper
    h = yarnhelper.YarnHelper()
    expected = h.get_variable('http_status')
    actual = int(h.get_next_match())
    h.assertEqual(expected, actual)

    IMPLEMENTS THEN HTTP body matches "(.*)"
    import re, yarnhelper
    h = yarnhelper.YarnHelper()
    body = h.get_variable('http_body')
    pattern = h.get_next_match()
    m = re.search(pattern, body)
    h.assertNotEqual(m, None)

## Running commands and checking results

    IMPLEMENTS WHEN user runs Gitano (.*)
    import os, re, cliapp, yarnhelper
    h = yarnhelper.YarnHelper()
    server = os.environ['SERVER']
    cmd = h.get_next_match()
    argv = ['ssh', 'git@' + server] + cmd.split()
    exit, out, err = cliapp.runcmd_unchecked(argv)
    h.set_variable('argv', argv)
    h.set_variable('exit', int(exit))
    h.set_variable('stdout', out)
    h.set_variable('stderr', err)

    IMPLEMENTS WHEN user clones the (\S+) repository over git://
    import os, re, cliapp, yarnhelper
    h = yarnhelper.YarnHelper()
    server = os.environ['SERVER']
    repo = h.get_next_match()
    url = 'git://{}/{}'.format(server, repo)
    argv = ['git', 'clone', url]
    exit, out, err = cliapp.runcmd_unchecked(argv, cwd=os.environ['DATADIR'])
    h.set_variable('argv', argv)
    h.set_variable('exit', int(exit))
    h.set_variable('stdout', out)
    h.set_variable('stderr', err)

    IMPLEMENTS THEN exit code is (\d+)
    import yarnhelper
    h = yarnhelper.YarnHelper()
    code = h.get_next_match()
    h.assertEqual(h.get_variable('exit'), int(code))

    IMPLEMENTS THEN standard output matches "(.+)"
    import re, cliapp, yarnhelper
    h = yarnhelper.YarnHelper()
    pattern = h.get_next_match()
    stdout = h.get_variable('stdout')
    m = re.search(pattern, stdout)
    print 'pattern:', repr(pattern)
    print 'argv:', repr(h.get_variable('argv'))
    print 'stdout:', repr(stdout)
    h.assertNotEqual(m, None)

    IMPLEMENTS THEN standard error matches "(.+)"
    import re, cliapp, yarnhelper
    h = yarnhelper.YarnHelper()
    pattern = h.get_next_match()
    stderr = h.get_variable('stderr')
    m = re.search(pattern, stderr)
    print 'pattern:', repr(pattern)
    print 'argv:', repr(h.get_variable('argv'))
    print 'stderr:', repr(stderr)
    h.assertNotEqual(m, None)