Easy creation of hamcrest matchers
Project description
Decorators that simplify the creation of Hamcrest matchers.
From a function (with an optional appropriate docstring), create hamcrest matchers with minimum extra coding.
The sources can be found in GitHub.
Examples:
from matchmaker import matcher @matcher def is_even(item): return item % 2 == 0 @matcher def ends_like(item, data, length=3): "String whose last {1} chars match those for '{0}'" return item.endswith(data[-length:])
You can then use these in your tests as:
assert_that(number, is_even()) assert_that(word, ends_like(other_word, 4))
Errors will display as:
AssertionError: Expected: Is even but: was <3> AssertionError: Expected: String whose last 4 chars match those for 'cello' but: was 'hullo'
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