def test_to_argparser_bad_argsdict():
"""
Should raise an error if the choices aren't coercible to the given type.
"""
argsdict = {'badchoices': {'choices': 'a, b', 'type': 'int'}}
with pytest.raises(ValueError):
export.to_argparser("...", argsdict)
def test_to_argparser_bad_argsdict():
"""
Should raise an error if the choices aren't coercible to the given type.
"""
argsdict = {'badchoices': {
'choices': 'a, b',
'type': 'int'}}
with pytest.raises(ValueError):
export.to_argparser("...", argsdict)
def test_filetypes():
argsdict = {'arg1': {'type': FILE_W}, 'arg2': {'type': FILE_R}}
parser = export.to_argparser('test', argsdict)
args = parser.parse_args(
shlex.split("--arg1 /dev/null --arg2 {}".format(__file__)))
assert args.arg1.mode == 'w'
assert args.arg2.mode == 'r'
def test_to_argparser_bad_input(argsdict):
parser = export.to_argparser(cmd_name='Command', argsdict=argsdict)
# Invalid choice
with pytest.raises(SystemExit):
parser.parse_args(shlex.split("--choices 4 blah"))
# Invalid type
with pytest.raises(SystemExit):
parser.parse_args(shlex.split("--arg2 string blah"))
def test_nargs():
"""`nargs` should work as expected by ArgumentParser."""
argsdict = {'nargs': {
'type': 'int',
'nargs': '+'}}
parser = export.to_argparser('...', argsdict)
args = parser.parse_args(shlex.split("--nargs 1 2 3"))
assert args.nargs == [1, 2, 3]
def test_to_argparser_bad_input(argsdict):
parser = export.to_argparser(cmd_name='Command', argsdict=argsdict)
# Invalid choice
with pytest.raises(SystemExit):
parser.parse_args(shlex.split("--choices 4 blah"))
# Invalid type
with pytest.raises(SystemExit):
parser.parse_args(shlex.split("--arg2 string blah"))
def test_bad_nargs():
"""
`nargs` that don't match an int or one of the given options should be set
to None.
"""
argsdict = {'nargs': {'nargs': 'b'}}
parser = export.to_argparser('...', argsdict)
with pytest.raises(SystemExit):
parser.parse_args("--nargs 1 2 3")
def test_stdin_stdout():
argsdict = {
'arg1': {'default': 'stdin'},
'arg2': {'default': 'stdout'}
}
parser = export.to_argparser('test', argsdict)
args = parser.parse_args("")
assert args.arg1 == sys.stdin
assert args.arg2 == sys.stdout
def test_bad_nargs():
"""
`nargs` that don't match an int or one of the given options should be set
to None.
"""
argsdict = {'nargs': {
'nargs': 'b'}}
parser = export.to_argparser('...', argsdict)
with pytest.raises(SystemExit):
parser.parse_args("--nargs 1 2 3")
def test_filetypes():
argsdict = {
'arg1': {'type': FILE_W},
'arg2': {'type': FILE_R}
}
parser = export.to_argparser('test', argsdict)
args = parser.parse_args(
shlex.split("--arg1 /dev/null --arg2 {}".format(__file__))
)
assert args.arg1.mode == 'w'
assert args.arg2.mode == 'r'
def test_set_parser_defaults(argsdict, tmpdir):
# Build a config parser
config = ConfigParser.SafeConfigParser()
cfg_file = tmpdir.join("test.cfg")
cfg_file.write(export.to_config('test', argsdict))
config.read(str(cfg_file))
# Modify config from the spec defaults
config.set("test", "arg2", "3")
# Build argparser
parser = export.to_argparser('test', argsdict)
parser = argutils.set_parser_defaults(parser, config)
args = parser.parse_args(["test"])
# Should reflect the modified default
assert args.arg2 == 3
# Should warn since it can't find the section
parser = export.to_argparser('test2', argsdict)
with pytest.warns(UserWarning):
argutils.set_parser_defaults(parser, config)
def test_set_parser_defaults(argsdict, tmpdir):
# Build a config parser
config = ConfigParser.SafeConfigParser()
cfg_file = tmpdir.join("test.cfg")
cfg_file.write(export.to_config('test', argsdict))
config.read(str(cfg_file))
# Modify config from the spec defaults
config.set("test", "arg2", "3")
# Build argparser
parser = export.to_argparser('test', argsdict)
parser = argutils.set_parser_defaults(parser, config)
args = parser.parse_args(["test"])
# Should reflect the modified default
assert args.arg2 == 3
# Should warn since it can't find the section
parser = export.to_argparser('test2', argsdict)
with pytest.warns(UserWarning):
argutils.set_parser_defaults(parser, config)
def test_to_argparser(argsdict):
"""Valid argdict should behave as expected."""
parser = export.to_argparser(cmd_name='Command', argsdict=argsdict)
# Valid, expected input
validargs = "--arg1 someval --arg2 5 --hidden 6 --flag --choices 2 /dev/null"
args = parser.parse_args(shlex.split(validargs))
assert parser.prog == "Command"
assert args.arg1 == "someval"
assert args.arg2 == 5
assert args.hidden == 6
assert args.flag
assert args.choices == 2
assert args.output.name == "/dev/null"
def test_to_argparser(argsdict):
"""Valid argdict should behave as expected."""
parser = export.to_argparser(cmd_name='Command', argsdict=argsdict)
# Valid, expected input
validargs = "--arg1 someval --arg2 5 --hidden 6 --flag --choices 2 /dev/null"
args = parser.parse_args(shlex.split(validargs))
assert parser.prog == "Command"
assert args.arg1 == "someval"
assert args.arg2 == 5
assert args.hidden == 6
assert args.flag
assert args.choices == 2
assert args.output.name == "/dev/null"
def main():
# Used in the config file and argument parser's help
prog_name = 'example.py'
config = ConfigParser.SafeConfigParser()
# Read the spec and build a parser from it
argsdict = read.from_yaml(open(SPEC_FILE).read())
parser = export.to_argparser(prog_name, argsdict)
# If the config file exists and we can read it, use it to set the
# defaults
if config.read(CONF_FILE):
parser = argutils.set_parser_defaults(parser, config)
args = parser.parse_args()
if args.init:
export.to_config_file(prog_name, argsdict, CONF_FILE)
for _ in range(args.times):
args.output.write(args.message + '\n')
def main():
# Used in the config file and argument parser's help
prog_name = "example.py"
config = ConfigParser.SafeConfigParser()
# Read the spec and build a parser from it
argsdict = read.from_yaml(open(SPEC_FILE).read())
parser = export.to_argparser(prog_name, argsdict)
# If the config file exists and we can read it, use it to set the
# defaults
if config.read(CONF_FILE):
parser = argutils.set_parser_defaults(parser, config)
args = parser.parse_args()
if args.init:
export.to_config_file(prog_name, argsdict, CONF_FILE)
for _ in range(args.times):
args.output.write(args.message + "\n")
def test_bad_typestr():
argsdict = {
'arg1': {'type': 'notatype'}
}
with pytest.raises(ValueError):
export.to_argparser('test', argsdict)
def test_bad_typestr():
argsdict = {'arg1': {'type': 'notatype'}}
with pytest.raises(ValueError):
export.to_argparser('test', argsdict)
def test_stdin_stdout():
argsdict = {'arg1': {'default': 'stdin'}, 'arg2': {'default': 'stdout'}}
parser = export.to_argparser('test', argsdict)
args = parser.parse_args("")
assert args.arg1 == sys.stdin
assert args.arg2 == sys.stdout
def test_nargs():
"""`nargs` should work as expected by ArgumentParser."""
argsdict = {'nargs': {'type': 'int', 'nargs': '+'}}
parser = export.to_argparser('...', argsdict)
args = parser.parse_args(shlex.split("--nargs 1 2 3"))
assert args.nargs == [1, 2, 3]