def test_construct_arguments_completes_kwargs_from_options():
s = Signature(bariza)
args, kwargs = s.construct_arguments([2, 4], {}, {'c': 6})
assert args == [2, 4]
assert kwargs == {'c': 6}
s = Signature(complex_function_name)
args, kwargs = s.construct_arguments([], {'c': 6, 'b': 7}, {'a': 1})
assert args == []
assert kwargs == {'a': 1, 'c': 6, 'b': 7}
def test_get_free_parameters():
free = Signature(foo).get_free_parameters([], {})
assert free == []
free = Signature(bariza).get_free_parameters([], {'c': 3})
assert free == ['a', 'b']
free = Signature(complex_function_name).get_free_parameters([], {})
assert free == ['a', 'b', 'c']
free = Signature(_name_with_underscore_).get_free_parameters([], {})
assert free == ['fo', 'bar']
s = Signature(__double_underscore__)
assert s.get_free_parameters([1, 2, 3], {}) == []
def test_construct_arguments_without_duplicates_passes():
s = Signature(bariza)
s.construct_arguments([1, 2], {'c': 5}, {})
s = Signature(complex_function_name)
s.construct_arguments([1], {'b': 4}, {})
s = Signature(FunCTIonWithCAPItals)
s.construct_arguments([], {'a': 6, 'b': 6, 'c': 6}, {})
def test_construct_arguments_with_duplicate_args_raises_typeerror():
multiple_values = re.compile(".*multiple values.*")
with pytest.raises(TypeError) as excinfo:
s = Signature(bariza)
s.construct_arguments([1, 2, 3], {'a': 4, 'b': 5}, {})
assert multiple_values.match(excinfo.value.args[0])
with pytest.raises(TypeError) as excinfo:
s = Signature(complex_function_name)
s.construct_arguments([1], {'a': 4}, {})
assert multiple_values.match(excinfo.value.args[0])
with pytest.raises(TypeError) as excinfo:
s = Signature(FunCTIonWithCAPItals)
s.construct_arguments([1, 2, 3], {'c': 6}, {})
assert multiple_values.match(excinfo.value.args[0])
def test_construct_arguments_raises_if_args_unfilled():
s = Signature(bariza)
missing = re.compile(".*missing.*")
with pytest.raises(MissingConfigError) as excinfo:
s.construct_arguments([], {}, {})
assert missing.match(excinfo.value.args[0])
with pytest.raises(MissingConfigError) as excinfo:
s.construct_arguments([1, 2], {}, {})
assert missing.match(excinfo.value.args[0])
with pytest.raises(MissingConfigError) as excinfo:
s.construct_arguments([1], {'b': 3}, {})
assert missing.match(excinfo.value.args[0])
with pytest.raises(MissingConfigError) as excinfo:
s.construct_arguments([1], {'c': 5}, {})
assert missing.match(excinfo.value.args[0])
def test_construct_arguments_without_options_returns_same_args_kwargs():
s = Signature(foo)
args, kwargs = s.construct_arguments([], {}, {})
assert args == []
assert kwargs == {}
s = Signature(bariza)
args, kwargs = s.construct_arguments([2, 4, 6], {}, {})
assert args == [2, 4, 6]
assert kwargs == {}
s = Signature(complex_function_name)
args, kwargs = s.construct_arguments([2], {'c': 6, 'b': 7}, {})
assert args == [2]
assert kwargs == {'c': 6, 'b': 7}
s = Signature(_name_with_underscore_)
args, kwargs = s.construct_arguments([], {'fo': 7, 'bar': 6}, {})
assert args == []
assert kwargs == {'fo': 7, 'bar': 6}
def test_construct_arguments_does_not_overwrite_args_and_kwargs():
s = Signature(bariza)
args, kwargs = s.construct_arguments([1, 2], {'c': 3},
{'a': 6, 'b': 6, 'c': 6})
assert args == [1, 2]
assert kwargs == {'c': 3}
def test_construct_arguments_with_duplicate_args_raises_typeerror():
multiple_values = re.compile(".*multiple values.*")
with pytest.raises(TypeError) as excinfo:
s = Signature(bariza)
s.construct_arguments([1, 2, 3], {'a': 4, 'b': 5}, {})
assert multiple_values.match(excinfo.value.args[0])
with pytest.raises(TypeError) as excinfo:
s = Signature(complex_function_name)
s.construct_arguments([1], {'a': 4}, {})
assert multiple_values.match(excinfo.value.args[0])
with pytest.raises(TypeError) as excinfo:
s = Signature(FunCTIonWithCAPItals)
s.construct_arguments([1, 2, 3], {'c': 6}, {})
assert multiple_values.match(excinfo.value.args[0])
def test_construct_arguments_with_expected_kwargs_does_not_raise():
s = Signature(complex_function_name)
s.construct_arguments([], {'a': 4, 'b': 3, 'c': 2}, {})
s = Signature(FunCTIonWithCAPItals)
s.construct_arguments([1, 2], {'c': 5}, {})
def test_constructor_extract_positional_arguments(function, pos_args):
s = Signature(function)
assert s.positional_args == pos_args
def test_constructor_extract_vararg_name(function, vararg):
s = Signature(function)
assert s.vararg_name == vararg
def test_construct_arguments_with_unexpected_args_raises_typeerror(func, args):
unexpected = re.compile(".*unexpected.*")
with pytest.raises(TypeError) as excinfo:
Signature(func).construct_arguments(args, {}, {})
assert unexpected.match(excinfo.value.args[0])
def test_construct_arguments_with_unexpected_kwargs_raises_typeerror(function):
kwargs = {'zimbabwe': 23}
unexpected = re.compile(".*unexpected.*zimbabwe.*")
with pytest.raises(TypeError) as excinfo:
Signature(function).construct_arguments([], kwargs, {})
assert unexpected.match(excinfo.value.args[0])
def test_constructor_extract_kwargs(function, kwargs):
s = Signature(function)
assert s.kwargs == kwargs
def test_unicode_special():
assert re.match("complex_function_name\(a=1, b=u?'fo', c=9\)",
Signature(complex_function_name).__unicode__())
def test_construct_arguments_without_options_returns_same_args_kwargs():
s = Signature(foo)
args, kwargs = s.construct_arguments([], {}, {})
assert args == []
assert kwargs == {}
s = Signature(bariza)
args, kwargs = s.construct_arguments([2, 4, 6], {}, {})
assert args == [2, 4, 6]
assert kwargs == {}
s = Signature(complex_function_name)
args, kwargs = s.construct_arguments([2], {'c': 6, 'b': 7}, {})
assert args == [2]
assert kwargs == {'c': 6, 'b': 7}
s = Signature(_name_with_underscore_)
args, kwargs = s.construct_arguments([], {'fo': 7, 'bar': 6}, {})
assert args == []
assert kwargs == {'fo': 7, 'bar': 6}
def test_construct_arguments_without_duplicates_passes():
s = Signature(bariza)
s.construct_arguments([1, 2], {'c': 5}, {})
s = Signature(complex_function_name)
s.construct_arguments([1], {'b': 4}, {})
s = Signature(FunCTIonWithCAPItals)
s.construct_arguments([], {'a': 6, 'b': 6, 'c': 6}, {})
def test_construct_arguments_does_not_raise_for_missing_defaults():
s = Signature(complex_function_name)
s.construct_arguments([], {}, {})
def test_construct_arguments_with_kwargswildcard_doesnt_raise():
kwargs = {'zimbabwe': 23}
Signature(FunCTIonWithCAPItals).construct_arguments([1, 2, 3], kwargs, {})
Signature(__double_underscore__).construct_arguments([1, 2], kwargs, {})
def test_construct_arguments_without_duplicates_passes():
s = Signature(bariza)
s.construct_arguments([1, 2], {'c': 5}, {})
s = Signature(complex_function_name)
s.construct_arguments([1], {'b': 4}, {})
def test_constructor_extract_kwargs_wildcard_name(function, kw_wc):
s = Signature(function)
assert s.kw_wildcard_name == kw_wc
def test_construct_arguments_overwrites_defaults():
s = Signature(complex_function_name)
args, kwargs = s.construct_arguments([], {}, {'a': 11, 'b': 12, 'c': 7})
assert args == []
assert kwargs == {'a': 11, 'b': 12, 'c': 7}
def test_construct_arguments_without_duplicates_passes():
s = Signature(bariza)
s.construct_arguments([1, 2], {'c': 5}, {})
s = Signature(complex_function_name)
s.construct_arguments([1], {'b': 4}, {})
def test_construct_arguments_with_expected_kwargs_does_not_raise():
s = Signature(complex_function_name)
s.construct_arguments([], {'a': 4, 'b': 3, 'c': 2}, {})
s = Signature(FunCTIonWithCAPItals)
s.construct_arguments([1, 2], {'c': 5}, {})
def test_construct_arguments_does_not_raise_if_all_args_filled():
s = Signature(bariza)
s.construct_arguments([1, 2, 3], {}, {})
s.construct_arguments([1, 2], {'c': 6}, {})
s.construct_arguments([1], {'b': 6, 'c': 6}, {})
s.construct_arguments([], {'a': 6, 'b': 6, 'c': 6}, {})
def test_construct_arguments_with_kwargs_for_posargs_does_not_raise():
Signature(bariza).construct_arguments([], {'a': 4, 'b': 3, 'c': 2}, {})
s = Signature(FunCTIonWithCAPItals)
s.construct_arguments([], {'a': 4, 'b': 3, 'c': 2, 'd': 6}, {})
def test_construct_arguments_with_kwargs_for_posargs_does_not_raise():
Signature(bariza).construct_arguments([], {'a': 4, 'b': 3, 'c': 2}, {})
s = Signature(FunCTIonWithCAPItals)
s.construct_arguments([], {'a': 4, 'b': 3, 'c': 2, 'd': 6}, {})
def test_construct_arguments_does_not_raise_for_missing_defaults():
s = Signature(complex_function_name)
s.construct_arguments([], {}, {})
def test_construct_arguments_for_bound_method():
s = Signature(SomeClass.bla)
args, kwargs = s.construct_arguments([1], {'b': 2}, {'c': 3}, bound=True)
assert args == [1]
assert kwargs == {'b': 2, 'c': 3}
def test_unicode_(func, expected):
assert Signature(func).__unicode__() == expected
def test_construct_arguments_ignores_excess_options():
s = Signature(bariza)
args, kwargs = s.construct_arguments([2], {'b': 4},
{'c': 6, 'foo': 9, 'bar': 0})
assert args == [2]
assert kwargs == {'b': 4, 'c': 6}
def test_repr_(name, func):
regex = "<Signature at 0x[0-9a-fA-F]+ for '%s'>"
assert re.match(regex % name, Signature(func).__repr__())
def test_construct_arguments_overwrites_defaults():
s = Signature(complex_function_name)
args, kwargs = s.construct_arguments([], {}, {'a': 11, 'b': 12, 'c': 7})
assert args == []
assert kwargs == {'a': 11, 'b': 12, 'c': 7}
def test_constructor_extract_function_name(function, name):
s = Signature(function)
assert s.name == name
def test_construct_arguments_does_not_raise_if_all_args_filled():
s = Signature(bariza)
s.construct_arguments([1, 2, 3], {}, {})
s.construct_arguments([1, 2], {'c': 6}, {})
s.construct_arguments([1], {'b': 6, 'c': 6}, {})
s.construct_arguments([], {'a': 6, 'b': 6, 'c': 6}, {})
def test_constructor_extracts_all_arguments(function, args):
s = Signature(function)
assert s.arguments == args
def test_construct_arguments_for_bound_method():
s = Signature(SomeClass.bla)
args, kwargs = s.construct_arguments([1], {'b': 2}, {'c': 3}, bound=True)
assert args == [1]
assert kwargs == {'b': 2, 'c': 3}
def test_construct_arguments_with_varargs_doesnt_raise():
Signature(generic).construct_arguments([1, 2, 3], {}, {})
Signature(__double_underscore__).construct_arguments([1, 2, 3, 4, 5], {},
{})
Signature(_name_with_underscore_).construct_arguments([1, 2, 3, 4], {}, {})