def test_inspect_arguments_case_no_params_no_args():
"""
Test `inspect_arguments`.
"""
# Create function
def func():
pass
# Inspect function arguments
info = inspect_arguments(
func=func,
args=[],
kwargs={},
)
# Check inspect info
check_inspect_info(info)
#
assert info.poskwd_param_names == []
assert info.kwdonly_param_names == []
assert info.varpos_param_name is None
assert info.varkwd_param_name is None
assert info.fixed_arg_infos == {}
assert info.varpos_arg_infos == []
assert info.varkwd_arg_infos == {}
assert info.dupkwd_arg_infos == {}
assert info.missing_arg_infos == {}
def test_inspect_arguments_case_varkwd_param_kwd_args():
"""
Test `inspect_arguments`.
"""
# Create function
def func(**var_kwargs):
pass
# Inspect function arguments
info = inspect_arguments(
func=func,
args=[],
kwargs=dict(a=1, b=2),
)
# Check inspect info
check_inspect_info(info)
#
assert info.poskwd_param_names == []
assert info.kwdonly_param_names == []
assert info.varpos_param_name is None
assert info.varkwd_param_name == 'var_kwargs'
assert info.fixed_arg_infos == {}
assert info.varpos_arg_infos == []
#
assert set(info.varkwd_arg_infos.keys()) == set(['a', 'b'])
#
arg_info = info.varkwd_arg_infos['a']
#
assert arg_info.name == 'a'
assert arg_info.value == 1
assert arg_info.type == ArgumentType.VAR_KEYWORD
assert arg_info.pos_index is None
assert arg_info.varpos_index is None
assert arg_info.param_type == ParameterType.VAR_KEYWORD
#
arg_info = info.varkwd_arg_infos['b']
#
assert arg_info.name == 'b'
assert arg_info.value == 2
assert arg_info.type == ArgumentType.VAR_KEYWORD
assert arg_info.pos_index is None
assert arg_info.varpos_index is None
assert arg_info.param_type == ParameterType.VAR_KEYWORD
#
assert info.dupkwd_arg_infos == {}
assert info.missing_arg_infos == {}
def test_inspect_arguments_case_varpos_param_pos_args():
"""
Test `inspect_arguments`.
"""
# Create function
def func(*var_args):
pass
# Inspect function arguments
info = inspect_arguments(
func=func,
args=[1, 2],
kwargs={},
)
# Check inspect info
check_inspect_info(info)
#
assert info.poskwd_param_names == []
assert info.kwdonly_param_names == []
assert info.varpos_param_name == 'var_args'
assert info.varkwd_param_name is None
assert info.fixed_arg_infos == {}
#
assert len(info.varpos_arg_infos) == 2
#
arg_info = info.varpos_arg_infos[0]
#
assert arg_info.name is None
assert arg_info.value == 1
assert arg_info.type == ArgumentType.VAR_POSITIONAL
assert arg_info.pos_index is None
assert arg_info.varpos_index == 0
assert arg_info.param_type == ParameterType.VAR_POSITIONAL
#
arg_info = info.varpos_arg_infos[1]
#
assert arg_info.name is None
assert arg_info.value == 2
assert arg_info.type == ArgumentType.VAR_POSITIONAL
assert arg_info.pos_index is None
assert arg_info.varpos_index == 1
assert arg_info.param_type == ParameterType.VAR_POSITIONAL
#
assert info.varkwd_arg_infos == {}
assert info.dupkwd_arg_infos == {}
assert info.missing_arg_infos == {}
def test_inspect_arguments_case_no_params_pos_args():
"""
Test `inspect_arguments`.
"""
# Create function
def func():
pass
# Inspect function arguments
info = inspect_arguments(
func=func,
args=[0],
kwargs={},
)
# Check inspect info
check_inspect_info(info)
#
assert info.poskwd_param_names == []
assert info.kwdonly_param_names == []
assert info.varpos_param_name is None
assert info.varkwd_param_name is None
assert info.fixed_arg_infos == {}
#
assert len(info.varpos_arg_infos) == 1
#
arg_info = info.varpos_arg_infos[0]
#
assert arg_info.name is None
assert arg_info.type == ArgumentType.VAR_POSITIONAL
# This is because the function has no variable-positional parameter
assert arg_info.param_type is None
#
assert info.varkwd_arg_infos == {}
assert info.dupkwd_arg_infos == {}
assert info.missing_arg_infos == {}
def test_inspect_arguments_case_no_params_kwd_args():
"""
Test `inspect_arguments`.
"""
# Create function
def func():
pass
# Inspect function arguments
info = inspect_arguments(
func=func,
args=[],
kwargs=dict(a=1, ),
)
# Check inspect info
check_inspect_info(info)
#
assert info.poskwd_param_names == []
assert info.kwdonly_param_names == []
assert info.varpos_param_name is None
assert info.varkwd_param_name is None
assert info.fixed_arg_infos == {}
assert info.varpos_arg_infos == []
#
assert len(info.varkwd_arg_infos) == 1
#
arg_info = info.varkwd_arg_infos['a']
#
assert arg_info.name == 'a'
assert arg_info.type == ArgumentType.VAR_KEYWORD
# This is because the function has no variable-keyword parameter
assert arg_info.param_type is None
#
assert info.dupkwd_arg_infos == {}
assert info.missing_arg_infos == {}
def test_inspect_arguments_case_poskwd_param_dft_args():
"""
Test `inspect_arguments`.
"""
# Create function
def func(a=1):
pass
# Inspect function arguments
info = inspect_arguments(
func=func,
args=[],
kwargs={},
)
# Check inspect info
check_inspect_info(info)
#
assert info.poskwd_param_names == ['a']
assert info.kwdonly_param_names == []
assert info.varpos_param_name is None
assert info.varkwd_param_name is None
assert list(info.fixed_arg_infos.keys()) == ['a']
#
arg_info = info.fixed_arg_infos['a']
#
assert arg_info.name == 'a'
assert arg_info.type == ArgumentType.DEFAULT
assert arg_info.value == 1
assert arg_info.pos_index is None
assert arg_info.varpos_index is None
assert arg_info.param_type == ParameterType.POSITIONAL_OR_KEYWORD
#
assert info.varpos_arg_infos == []
assert info.varkwd_arg_infos == {}
assert info.dupkwd_arg_infos == {}
assert info.missing_arg_infos == {}
def test_inspect_arguments_case_kwdonly_params_kwd_args():
"""
Test `inspect_arguments`.
"""
# If is Python 2.
# Python 2 has no keyword-only parameters.
if IS_PY2:
# Ignore
return
# Create function.
# The keyword-only parameter syntax will cause syntax error in Python 2.
# Use exec to avoid the syntax error.
py3_only_code = r"""
def func(*, a=1, b=2):
pass
"""
# `exec`'s context dict
context_dict = {}
# Execute code in the context
exec(py3_only_code, context_dict, context_dict)
# Get function
func = context_dict['func']
# Inspect function arguments
info = inspect_arguments(
func=func,
args=[],
kwargs=dict(
a=100,
b=200,
),
)
# Check inspect info
check_inspect_info(info)
#
assert info.poskwd_param_names == []
assert info.kwdonly_param_names == ['a', 'b']
assert info.varpos_param_name is None
assert info.varkwd_param_name is None
#
assert list(info.fixed_arg_infos.keys()) == ['a', 'b']
#
arg_info = info.fixed_arg_infos['a']
#
assert arg_info.name == 'a'
assert arg_info.value == 100
assert arg_info.type == ArgumentType.KEYWORD_ONLY
assert arg_info.pos_index is None
assert arg_info.varpos_index is None
assert arg_info.param_type == ParameterType.KEYWORD_ONLY
#
arg_info = info.fixed_arg_infos['b']
#
assert arg_info.name == 'b'
assert arg_info.value == 200
assert arg_info.type == ArgumentType.KEYWORD_ONLY
assert arg_info.pos_index is None
assert arg_info.varpos_index is None
assert arg_info.param_type == ParameterType.KEYWORD_ONLY
#
assert info.varpos_arg_infos == []
assert info.varkwd_arg_infos == {}
assert info.dupkwd_arg_infos == {}
assert info.missing_arg_infos == {}