mirror of https://github.com/python/cpython
240 lines
9.9 KiB
Python
240 lines
9.9 KiB
Python
import mailcap
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import os
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import copy
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import test.support
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import unittest
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# Location of mailcap file
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MAILCAPFILE = test.support.findfile("mailcap.txt")
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# Dict to act as mock mailcap entry for this test
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# The keys and values should match the contents of MAILCAPFILE
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MAILCAPDICT = {
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'application/x-movie':
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[{'compose': 'moviemaker %s',
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'x11-bitmap': '"/usr/lib/Zmail/bitmaps/movie.xbm"',
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'description': '"Movie"',
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'view': 'movieplayer %s',
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'lineno': 4}],
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'application/*':
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[{'copiousoutput': '',
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'view': 'echo "This is \\"%t\\" but is 50 \\% Greek to me" \\; cat %s',
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'lineno': 5}],
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'audio/basic':
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[{'edit': 'audiocompose %s',
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'compose': 'audiocompose %s',
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'description': '"An audio fragment"',
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'view': 'showaudio %s',
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'lineno': 6}],
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'video/mpeg':
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[{'view': 'mpeg_play %s', 'lineno': 13}],
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'application/postscript':
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[{'needsterminal': '', 'view': 'ps-to-terminal %s', 'lineno': 1},
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{'compose': 'idraw %s', 'view': 'ps-to-terminal %s', 'lineno': 2}],
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'application/x-dvi':
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[{'view': 'xdvi %s', 'lineno': 3}],
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'message/external-body':
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[{'composetyped': 'extcompose %s',
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'description': '"A reference to data stored in an external location"',
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'needsterminal': '',
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'view': 'showexternal %s %{access-type} %{name} %{site} %{directory} %{mode} %{server}',
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'lineno': 10}],
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'text/richtext':
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[{'test': 'test "`echo %{charset} | tr \'[A-Z]\' \'[a-z]\'`" = iso-8859-8',
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'copiousoutput': '',
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'view': 'shownonascii iso-8859-8 -e richtext -p %s',
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'lineno': 11}],
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'image/x-xwindowdump':
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[{'view': 'display %s', 'lineno': 9}],
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'audio/*':
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[{'view': '/usr/local/bin/showaudio %t', 'lineno': 7}],
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'video/*':
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[{'view': 'animate %s', 'lineno': 12}],
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'application/frame':
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[{'print': '"cat %s | lp"', 'view': 'showframe %s', 'lineno': 0}],
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'image/rgb':
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[{'view': 'display %s', 'lineno': 8}]
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}
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# For backwards compatibility, readmailcapfile() and lookup() still support
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# the old version of mailcapdict without line numbers.
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MAILCAPDICT_DEPRECATED = copy.deepcopy(MAILCAPDICT)
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for entry_list in MAILCAPDICT_DEPRECATED.values():
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for entry in entry_list:
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entry.pop('lineno')
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class HelperFunctionTest(unittest.TestCase):
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def test_listmailcapfiles(self):
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# The return value for listmailcapfiles() will vary by system.
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# So verify that listmailcapfiles() returns a list of strings that is of
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# non-zero length.
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mcfiles = mailcap.listmailcapfiles()
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self.assertIsInstance(mcfiles, list)
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for m in mcfiles:
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self.assertIsInstance(m, str)
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with test.support.EnvironmentVarGuard() as env:
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# According to RFC 1524, if MAILCAPS env variable exists, use that
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# and only that.
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if "MAILCAPS" in env:
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env_mailcaps = env["MAILCAPS"].split(os.pathsep)
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else:
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env_mailcaps = ["/testdir1/.mailcap", "/testdir2/mailcap"]
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env["MAILCAPS"] = os.pathsep.join(env_mailcaps)
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mcfiles = mailcap.listmailcapfiles()
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self.assertEqual(env_mailcaps, mcfiles)
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def test_readmailcapfile(self):
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# Test readmailcapfile() using test file. It should match MAILCAPDICT.
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with open(MAILCAPFILE, 'r') as mcf:
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with self.assertWarns(DeprecationWarning):
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d = mailcap.readmailcapfile(mcf)
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self.assertDictEqual(d, MAILCAPDICT_DEPRECATED)
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def test_lookup(self):
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# Test without key
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expected = [{'view': 'animate %s', 'lineno': 12},
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{'view': 'mpeg_play %s', 'lineno': 13}]
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actual = mailcap.lookup(MAILCAPDICT, 'video/mpeg')
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self.assertListEqual(expected, actual)
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# Test with key
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key = 'compose'
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expected = [{'edit': 'audiocompose %s',
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'compose': 'audiocompose %s',
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'description': '"An audio fragment"',
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'view': 'showaudio %s',
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'lineno': 6}]
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actual = mailcap.lookup(MAILCAPDICT, 'audio/basic', key)
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self.assertListEqual(expected, actual)
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# Test on user-defined dicts without line numbers
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expected = [{'view': 'mpeg_play %s'}, {'view': 'animate %s'}]
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actual = mailcap.lookup(MAILCAPDICT_DEPRECATED, 'video/mpeg')
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self.assertListEqual(expected, actual)
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def test_subst(self):
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plist = ['id=1', 'number=2', 'total=3']
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# test case: ([field, MIMEtype, filename, plist=[]], <expected string>)
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test_cases = [
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(["", "audio/*", "foo.txt"], ""),
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(["echo foo", "audio/*", "foo.txt"], "echo foo"),
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(["echo %s", "audio/*", "foo.txt"], "echo foo.txt"),
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(["echo %t", "audio/*", "foo.txt"], "echo audio/*"),
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(["echo \\%t", "audio/*", "foo.txt"], "echo %t"),
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(["echo foo", "audio/*", "foo.txt", plist], "echo foo"),
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(["echo %{total}", "audio/*", "foo.txt", plist], "echo 3")
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]
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for tc in test_cases:
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self.assertEqual(mailcap.subst(*tc[0]), tc[1])
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class GetcapsTest(unittest.TestCase):
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def test_mock_getcaps(self):
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# Test mailcap.getcaps() using mock mailcap file in this dir.
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# Temporarily override any existing system mailcap file by pointing the
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# MAILCAPS environment variable to our mock file.
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with test.support.EnvironmentVarGuard() as env:
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env["MAILCAPS"] = MAILCAPFILE
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caps = mailcap.getcaps()
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self.assertDictEqual(caps, MAILCAPDICT)
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def test_system_mailcap(self):
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# Test mailcap.getcaps() with mailcap file(s) on system, if any.
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caps = mailcap.getcaps()
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self.assertIsInstance(caps, dict)
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mailcapfiles = mailcap.listmailcapfiles()
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existingmcfiles = [mcf for mcf in mailcapfiles if os.path.exists(mcf)]
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if existingmcfiles:
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# At least 1 mailcap file exists, so test that.
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for (k, v) in caps.items():
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self.assertIsInstance(k, str)
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self.assertIsInstance(v, list)
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for e in v:
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self.assertIsInstance(e, dict)
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else:
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# No mailcap files on system. getcaps() should return empty dict.
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self.assertEqual({}, caps)
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class FindmatchTest(unittest.TestCase):
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def test_findmatch(self):
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# default findmatch arguments
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c = MAILCAPDICT
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fname = "foo.txt"
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plist = ["access-type=default", "name=john", "site=python.org",
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"directory=/tmp", "mode=foo", "server=bar"]
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audio_basic_entry = {
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'edit': 'audiocompose %s',
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'compose': 'audiocompose %s',
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'description': '"An audio fragment"',
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'view': 'showaudio %s',
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'lineno': 6
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}
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audio_entry = {"view": "/usr/local/bin/showaudio %t", 'lineno': 7}
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video_entry = {'view': 'animate %s', 'lineno': 12}
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message_entry = {
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'composetyped': 'extcompose %s',
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'description': '"A reference to data stored in an external location"', 'needsterminal': '',
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'view': 'showexternal %s %{access-type} %{name} %{site} %{directory} %{mode} %{server}',
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'lineno': 10,
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}
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# test case: (findmatch args, findmatch keyword args, expected output)
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# positional args: caps, MIMEtype
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# keyword args: key="view", filename="/dev/null", plist=[]
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# output: (command line, mailcap entry)
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cases = [
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([{}, "video/mpeg"], {}, (None, None)),
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([c, "foo/bar"], {}, (None, None)),
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([c, "video/mpeg"], {}, ('animate /dev/null', video_entry)),
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([c, "audio/basic", "edit"], {}, ("audiocompose /dev/null", audio_basic_entry)),
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([c, "audio/basic", "compose"], {}, ("audiocompose /dev/null", audio_basic_entry)),
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([c, "audio/basic", "description"], {}, ('"An audio fragment"', audio_basic_entry)),
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([c, "audio/basic", "foobar"], {}, (None, None)),
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([c, "video/*"], {"filename": fname}, ("animate %s" % fname, video_entry)),
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([c, "audio/basic", "compose"],
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{"filename": fname},
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("audiocompose %s" % fname, audio_basic_entry)),
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([c, "audio/basic"],
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{"key": "description", "filename": fname},
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('"An audio fragment"', audio_basic_entry)),
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([c, "audio/*"],
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{"filename": fname},
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("/usr/local/bin/showaudio audio/*", audio_entry)),
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([c, "message/external-body"],
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{"plist": plist},
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("showexternal /dev/null default john python.org /tmp foo bar", message_entry))
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]
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self._run_cases(cases)
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@unittest.skipUnless(os.name == "posix", "Requires 'test' command on system")
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def test_test(self):
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# findmatch() will automatically check any "test" conditions and skip
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# the entry if the check fails.
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caps = {"test/pass": [{"test": "test 1 -eq 1"}],
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"test/fail": [{"test": "test 1 -eq 0"}]}
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# test case: (findmatch args, findmatch keyword args, expected output)
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# positional args: caps, MIMEtype, key ("test")
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# keyword args: N/A
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# output: (command line, mailcap entry)
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cases = [
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# findmatch will return the mailcap entry for test/pass because it evaluates to true
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([caps, "test/pass", "test"], {}, ("test 1 -eq 1", {"test": "test 1 -eq 1"})),
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# findmatch will return None because test/fail evaluates to false
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([caps, "test/fail", "test"], {}, (None, None))
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]
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self._run_cases(cases)
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def _run_cases(self, cases):
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for c in cases:
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self.assertEqual(mailcap.findmatch(*c[0], **c[1]), c[2])
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if __name__ == '__main__':
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unittest.main()
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