update starts_with() and ends_with() assertions to support lists #24
Description
Extend these assertions to support both lists and tuples (aka ordered collections), not just strings.
Currently starts_with() and ends_with() only support strings, like this:
assert_that('foo').starts_with('f')
assert_that('foo').ends_with('oo')Add support for lists:
assert_that([1,2,3]).starts_with(1)
assert_that([1,2,3]).ends_with(3)Add support for tuples:
assert_that((1,2,3)).starts_with(1)
assert_that((1,2,3)).ends_with(3)Also, support multiple args (starts with the given sequence, or ends with the given sequence):
assert_that([1,2,3]).starts_with(1,2)
assert_that([1,2,3]).ends_with(2,3)
assert_that((1,2,3)).starts_with(1,2)
assert_that((1,2,3)).ends_with(2,3)Lastly, we need to have a great error message for this failing case:
assert_that([1,2,3]).starts_with([1,2])