# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.

"""
Tests for L{twisted.scripts.tap2deb}.
"""

from twisted.scripts import tap2deb
from twisted.python import usage, procutils
from twisted.python.filepath import FilePath

from twisted.trial.unittest import TestCase, SkipTest



class TestTap2DEB(TestCase):
"""
Tests for the L{tap2deb} script.
"""
maintainer = "Jane Doe <[email protected]>"

def test_maintainerOption(self):
"""
The C{--maintainer} option must be specified on the commandline or
passed to L{tap2deb.run}.
"""
config = tap2deb.MyOptions()
self.assertRaises(usage.UsageError, config.parseOptions, [])
self.assertRaises(SystemExit, tap2deb.run, [])


def test_optionDefaults(self):
"""
Commandline options default to sensible values.
"""
config = tap2deb.MyOptions()
config.parseOptions(['--maintainer', self.maintainer])

self.assertEqual(config['tapfile'], 'twistd.tap')
self.assertEqual(config['maintainer'], self.maintainer)
self.assertEqual(config['protocol'], '')
self.assertEqual(config['description'], '')
self.assertEqual(config['long_description'], '')
self.assertEqual(config['set-version'], '1.0')
self.assertEqual(config['debfile'], None)
self.assertEqual(config['type'], 'tap')


def test_missingMaintainer(self):
"""
Omitting the maintainer argument results in L{tap2deb.run} raising
C{SystemExit}.
"""
error = self.assertRaises(SystemExit, tap2deb.run,
["--tapfile", "foo"])
self.assertTrue(str(error).endswith('maintainer must be specified.'))


def test_basicOperation(self):
"""
Running the L{tap2deb} script produces a bunch of files using
C{dpkg-buildpackage}.
"""
# Skip tests if dpkg-buildpackage is not present
if not procutils.which("dpkg-buildpackage"):
raise SkipTest("dpkg-buildpackage must be present to test tap2deb")

baseDir = FilePath(self.mktemp())
baseDir.makedirs()

# Make a temporary .tap file
version = '1.0'
tapName = 'lemon'
tapFile = baseDir.child("%s.tap" % (tapName,))
tapFile.setContent("# Dummy .tap file")

buildDir = FilePath('.build')
outputDir = buildDir.child('twisted-%s-%s' % (tapName, version))

# Run
args = ["--tapfile", tapFile.path, "--maintainer", self.maintainer]
tap2deb.run(args)

# Verify input files were created
self.assertEqual(sorted(outputDir.listdir()),
['build-stamp', 'debian', 'install-stamp', 'lemon.tap'])

debianDir = outputDir.child('debian')
for name in ['README.Debian', 'conffiles', 'default', 'init.d',
'postinst', 'prerm', 'postrm', 'changelog', 'control',
'copyright', 'dirs', 'rules']:
self.assertTrue(debianDir.child(name).exists())

# Verify 4 output files were created
self.assertTrue(buildDir.child('twisted-lemon_1.0_all.deb').exists())
self.assertTrue(buildDir.child('twisted-lemon_1.0.tar.gz').exists())
self.assertTrue(buildDir.child('twisted-lemon_1.0.dsc').exists())
self.assertEqual(
len(buildDir.globChildren('twisted-lemon_1.0_*.changes')), 1)