matchmaker

matchmaker provides 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'

Requirements:

• Python