Viewing file:  ordering_comparison.py (1.89 KB) -rw-r--r--
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import operator
from typing import Any, Callable
from hamcrest.core.base_matcher import BaseMatcher
from hamcrest.core.description import Description
from hamcrest.core.matcher import Matcher
__author__ = "Jon Reid"
__copyright__ = "Copyright 2011 hamcrest.org"
__license__ = "BSD, see License.txt"
class OrderingComparison(BaseMatcher[Any]):
def __init__(
self,
value: Any,
comparison_function: Callable[[Any, Any], bool],
comparison_description: str,
) -> None:
self.value = value
self.comparison_function = comparison_function
self.comparison_description = comparison_description
def _matches(self, item: Any) -> bool:
return self.comparison_function(item, self.value)
def describe_to(self, description: Description) -> None:
description.append_text("a value ").append_text(self.comparison_description).append_text(
" "
).append_description_of(self.value)
def greater_than(value: Any) -> Matcher[Any]:
"""Matches if object is greater than a given value.
:param value: The value to compare against.
"""
return OrderingComparison(value, operator.gt, "greater than")
def greater_than_or_equal_to(value: Any) -> Matcher[Any]:
"""Matches if object is greater than or equal to a given value.
:param value: The value to compare against.
"""
return OrderingComparison(value, operator.ge, "greater than or equal to")
def less_than(value: Any) -> Matcher[Any]:
"""Matches if object is less than a given value.
:param value: The value to compare against.
"""
return OrderingComparison(value, operator.lt, "less than")
def less_than_or_equal_to(value: Any) -> Matcher[Any]:
"""Matches if object is less than or equal to a given value.
:param value: The value to compare against.
"""
return OrderingComparison(value, operator.le, "less than or equal to")
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