depot/third_party/tvl/users/grfn/emacs.d/tests/splitjoin_test.el

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;;; private/grfn/tests/splitjoin_test.el -*- lexical-binding: t; -*-
(require 'ert)
;; (load! 'splitjoin)
;; (load! 'utils)
; (require 'splitjoin)
;;; Helpers
(defvar *test-buffer* nil)
(make-variable-buffer-local '*test-buffer*)
(defun test-buffer ()
(when (not *test-buffer*)
(setq *test-buffer* (get-buffer-create "test-buffer")))
*test-buffer*)
(defmacro with-test-buffer (&rest body)
`(with-current-buffer (test-buffer)
,@body))
(defun set-test-buffer-mode (mode)
(let ((mode (if (functionp mode) mode
(-> mode symbol-name (concat "-mode") intern))))
(assert (functionp mode))
(with-test-buffer (funcall mode))))
(defmacro set-test-buffer-contents (contents)
(with-test-buffer
(erase-buffer)
(insert contents)))
(defun test-buffer-contents ()
(with-test-buffer (substring-no-properties (buffer-string))))
(defmacro assert-test-buffer-contents (expected-contents)
`(should (equal (string-trim (test-buffer-contents))
(string-trim ,expected-contents))))
(defmacro should-join-to (mode original-contents expected-contents)
`(progn
(set-test-buffer-mode ,mode)
(set-test-buffer-contents ,original-contents)
(with-test-buffer (+splitjoin/join))
(assert-test-buffer-contents ,expected-contents)))
(defmacro should-split-to (mode original-contents expected-contents)
`(progn
(set-test-buffer-mode ,mode)
(set-test-buffer-contents ,original-contents)
(with-test-buffer (+splitjoin/split))
(assert-test-buffer-contents ,expected-contents)))
(defmacro should-splitjoin (mode joined-contents split-contents)
`(progn
(should-split-to ,mode ,joined-contents ,split-contents)
(should-join-to ,mode ,split-contents ,joined-contents)))
;;; Tests
;; Elixir
(ert-deftest elixir-if-splitjoin-test ()
(should-splitjoin 'elixir
"if predicate?(), do: result"
"if predicate?() do
result
end"))