aboutsummaryrefslogtreecommitdiffstats
path: root/contrib/python/PyHamcrest/src/hamcrest/library/collection/issequence_onlycontaining.py
blob: f1e40fa8c5e7c3e6c716ffa372a89fd0c096b026 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
from hamcrest.core.base_matcher import BaseMatcher 
from hamcrest.core.core.anyof import any_of 
from hamcrest.core.helpers.hasmethod import hasmethod 
from hamcrest.core.helpers.wrap_matcher import wrap_matcher 
 
__author__ = "Jon Reid" 
__copyright__ = "Copyright 2011 hamcrest.org" 
__license__ = "BSD, see License.txt" 
 
 
class IsSequenceOnlyContaining(BaseMatcher): 
 
    def __init__(self, matcher): 
        self.matcher = matcher 
 
    def _matches(self, sequence): 
        try: 
            sequence = list(sequence) 
            if len(sequence) == 0: 
                return False 
            for item in sequence: 
                if not self.matcher.matches(item): 
                    return False 
            return True 
        except TypeError: 
            return False 
 
    def describe_to(self, description): 
        description.append_text('a sequence containing items matching ')    \ 
                    .append_description_of(self.matcher) 
 
 
def only_contains(*items): 
    """Matches if each element of sequence satisfies any of the given matchers. 
 
    :param match1,...: A comma-separated list of matchers. 
 
    This matcher iterates the evaluated sequence, confirming whether each 
    element satisfies any of the given matchers. 
 
    Example:: 
 
        only_contains(less_than(4)) 
 
    will match ``[3,1,2]``. 
 
    Any argument that is not a matcher is implicitly wrapped in an 
    :py:func:`~hamcrest.core.core.isequal.equal_to` matcher to check for 
    equality. 
 
    """ 
    matchers = [] 
    for item in items: 
        matchers.append(wrap_matcher(item)) 
    return IsSequenceOnlyContaining(any_of(*matchers))