def _get_summary_spec(specs_or_keys):
"""Returns a specification object that may be used to describe a set of
requirements. This is used if a key or value does not match the possible
specs, thereby describing the set of allowed values.
"""
specs, keys = group_by_pred(_is_spec, specs_or_keys)
if specs and keys:
return Or(ValueIn(keys, description="key in {rvalue}"), *specs)
elif specs:
return Or(*specs)
elif keys:
return ValueIn(keys, description="key in {rvalue}")
return ValueMissing()
def _get_summary_spec(specs_or_keys):
"""Returns a specification object that may be used to describe a set of
requirements. This is used if a key or value does not match the possible
specs, thereby describing the set of allowed values.
"""
specs, keys = group_by_pred(_is_spec, specs_or_keys)
if specs and keys:
return Or(ValueIn(keys, description="key in {rvalue}"), *specs)
elif specs:
return Or(*specs)
elif keys:
return ValueIn(keys, description="key in {rvalue}")
return ValueMissing()
def test_group_by_pred__iterable():
assert_equal(utils.group_by_pred(lambda x: x % 2 == 0, xrange(1, 4)),
([2], [1, 3]))
def test_group_by_pred__is_even():
assert_equal(utils.group_by_pred(lambda x: x % 2 == 0, [1, 2, 3]),
([2], [1, 3]))
def test_group_by_pred__always_true():
assert_equal(utils.group_by_pred(lambda x: True, [1, 2, 3]),
([1, 2, 3], []))
def test_group_by_pred__always_false():
assert_equal(utils.group_by_pred(lambda x: False, [1, 2, 3]),
([], [1, 2, 3]))
def test_group_by_pred__empty_list():
assert_equal(utils.group_by_pred(id, []), ([], []))
def test_group_by_pred__iterable():
assert utils.group_by_pred(lambda x: x % 2 == 0, range(1,
4)) == ([2], [1, 3])
def test_group_by_pred__is_even():
assert utils.group_by_pred(lambda x: x % 2 == 0,
[1, 2, 3]) == ([2], [1, 3])
def test_group_by_pred__always_true():
assert utils.group_by_pred(lambda x: True, [1, 2, 3]) == ([1, 2, 3], [])
def test_group_by_pred__always_false():
assert utils.group_by_pred(lambda x: False, [1, 2, 3]) == ([], [1, 2, 3])
def test_group_by_pred__empty_list():
assert utils.group_by_pred(id, []) == ([], [])
