Add tests for setting autocomplete delimiters & support no delimiters #16
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On exploring a fix for #13, I saw there was already a
set_autocomplete_delims
.After an initial refactor of the common
compl
function into a factory fixture, this PR adds tests for the above method, initially with parametrization demonstrating how the problem observed in zulip-terminal can be resolved (or at least worked around), then expanding it to illustrate behavior when the autocomplete list contains phrases with word separators which are not a space - at this point simply expanding test coverage.The last commit(s) extend the functionality and test cases to allow setting the autocomplete delimters to be an empty string, ie. no characters - this essentially allows any character in the autocomplete phrases, but matches all text from the start of the text box.
Note that I've left the the last two commits separate for now, but these can squashed before merging.
(currently this emphasizes that the existing code is broken when passed an empty string)