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DO NOT SUBMIT - BEGIN_PUBLIC only here to satisfy presubmit for diffbase CL #155

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DO NOT SUBMIT - BEGIN_PUBLIC only here to satisfy presubmit for diffbase CL #155

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20 changes: 20 additions & 0 deletions lib/private/collection_subject.bzl
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Original file line number Diff line number Diff line change
Expand Up @@ -79,6 +79,7 @@ def _collection_subject_new(
contains_at_least_predicates = lambda *a, **k: _collection_subject_contains_at_least_predicates(self, *a, **k),
contains_exactly = lambda *a, **k: _collection_subject_contains_exactly(self, *a, **k),
contains_exactly_predicates = lambda *a, **k: _collection_subject_contains_exactly_predicates(self, *a, **k),
contains_no_duplicates = lambda *a, **k: _collection_subject_contains_no_duplicates(self, *a, **k),
contains_none_of = lambda *a, **k: _collection_subject_contains_none_of(self, *a, **k),
contains_predicate = lambda *a, **k: _collection_subject_contains_predicate(self, *a, **k),
has_size = lambda *a, **k: _collection_subject_has_size(self, *a, **k),
Expand Down Expand Up @@ -358,6 +359,24 @@ def _collection_subject_not_contains_predicate(self, matcher):
sort = self.sortable,
)

def _collection_subject_contains_no_duplicates(self):
"""Asserts that the collection contains no duplicates.

Method: CollectionSubject.contains_no_duplicates

Args:
self: implicitly added.
"""
already_seen = set()
for value in self.actual:
if value in already_seen:
self.meta.add_failure(
"expected no duplicates",
"actual: {}, duplicate: {}".format(self.actual, value),
)
return
already_seen.add(value)

def _collection_subject_offset(self, offset, factory):
"""Fetches an element from the collection as a subject.

Expand Down Expand Up @@ -467,6 +486,7 @@ CollectionSubject = struct(
contains_at_least_predicates = _collection_subject_contains_at_least_predicates,
contains_exactly = _collection_subject_contains_exactly,
contains_exactly_predicates = _collection_subject_contains_exactly_predicates,
contains_no_duplicates = _collection_subject_contains_no_duplicates,
contains_none_of = _collection_subject_contains_none_of,
contains_predicate = _collection_subject_contains_predicate,
has_size = _collection_subject_has_size,
Expand Down