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"""Tests for :meth:`Pattern.__call__` — validators-as-callables."""
from edify import Pattern
def test_call_returns_true_when_pattern_matches_anywhere_in_string():
contains_digit = Pattern().digit()
assert contains_digit("hello 42 world") is True
def test_call_returns_false_when_pattern_never_matches():
contains_digit = Pattern().digit()
assert contains_digit("hello world") is False
def test_call_delegates_to_test_with_search_semantics():
only_letters = Pattern().start_of_input().one_or_more().letter().end_of_input()
assert only_letters("abc") is True
assert only_letters("abc123") is False
def test_call_result_is_a_bool_not_a_match_object():
contains_digit = Pattern().digit()
assert isinstance(contains_digit("42"), bool)
def test_call_reuses_the_cached_regex_across_repeat_calls():
pattern = Pattern().string("hi")
first_compiled = pattern.to_regex()
pattern("hi world")
pattern("bye world")
assert pattern.to_regex() is first_compiled
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