clang-include-fixer-test.el
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;;; clang-include-fixer-test.el --- unit tests for clang-include-fixer.el -*- lexical-binding: t; -*-
;;; Commentary:
;; Unit tests for clang-include-fixer.el.
;;; Code:
(require 'clang-include-fixer)
(require 'cc-mode)
(require 'ert)
(ert-deftest clang-include-fixer--insert-line ()
"Unit test for `clang-include-fixer--insert-line'."
(with-temp-buffer
(insert "aa\nab\nac\nad\n")
(let ((from (current-buffer)))
(with-temp-buffer
(insert "aa\nac\nad\n")
(let ((to (current-buffer)))
(should (clang-include-fixer--insert-line from to))
(should (equal (buffer-string) "aa\nab\nac\nad\n")))))
(should (equal (buffer-string) "aa\nab\nac\nad\n"))))
(ert-deftest clang-include-fixer--insert-line-diff-on-empty-line ()
"Unit test for `clang-include-fixer--insert-line'."
(with-temp-buffer
(insert "aa\nab\n\nac\nad\n")
(let ((from (current-buffer)))
(with-temp-buffer
(insert "aa\n\nac\nad\n")
(let ((to (current-buffer)))
(should (clang-include-fixer--insert-line from to))
(should (equal (buffer-string) "aa\nab\n\nac\nad\n")))))
(should (equal (buffer-string) "aa\nab\n\nac\nad\n"))))
(ert-deftest clang-include-fixer--symbol-at-point ()
"Unit test for `clang-include-fixer--symbol-at-point'."
(with-temp-buffer
(insert "a+bbb::cc")
(c++-mode)
(goto-char (point-min))
(should (equal (clang-include-fixer--symbol-at-point) "a"))
(forward-char)
;; Emacs treats the character immediately following a symbol as part of the
;; symbol.
(should (equal (clang-include-fixer--symbol-at-point) "a"))
(forward-char)
(should (equal (clang-include-fixer--symbol-at-point) "bbb::cc"))
(goto-char (point-max))
(should (equal (clang-include-fixer--symbol-at-point) "bbb::cc"))))
(ert-deftest clang-include-fixer--highlight ()
(with-temp-buffer
(insert "util::Status foo;\n")
(setq buffer-file-coding-system 'utf-8-unix)
(should (equal nil (clang-include-fixer--highlight
'((Range . ((Offset . 0) (Length . 0)))))))
(let ((overlay (clang-include-fixer--highlight
'((Range . ((Offset . 1) (Length . 12)))))))
(should (equal 2 (overlay-start overlay)))
(should (equal 14 (overlay-end overlay))))))
;;; clang-include-fixer-test.el ends here