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;;; cc-mode-tests.el --- Test suite for cc-mode. -*- lexical-binding: t; -*-
;; Copyright (C) 2016-2024 Free Software Foundation, Inc.
;; Author: Michal Nazarewicz <mina86@mina86.com>
;; Keywords: internal
;; Human-Keywords: internal
;; This file is part of GNU Emacs.
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; Unit tests for cc-mode.el.
;;; Code:
(require 'ert)
(require 'ert-x)
(require 'cc-mode)
(ert-deftest c-or-c++-mode ()
"Test c-or-c++-mode language detection."
(cl-letf* ((mode nil)
(do-test (lambda (content expected)
(delete-region (point-min) (point-max))
(insert content)
(setq mode nil)
(c-or-c++-mode)
(unless (eq expected mode)
(ert-fail
(format "expected %s but got %s when testing '%s'"
expected mode content)))))
((symbol-function 'c-mode) (lambda () (setq mode 'c-mode)))
((symbol-function 'c++-mode) (lambda () (setq mode 'c++-mode))))
(with-temp-buffer
(mapc (lambda (content)
(funcall do-test content 'c++-mode)
(funcall do-test (concat "// " content) 'c-mode)
(funcall do-test (concat " * " content) 'c-mode))
'("using \t namespace \t std;"
"using \t std::string;"
"using Foo = Bar;"
"namespace \t {"
"namespace \t foo \t {"
"namespace \t foo::bar \t {"
"inline namespace \t foo \t {"
"inline namespace \t foo::bar \t {"
"class \t Blah_42 \t \n"
"class \t Blah_42;"
"class \t Blah_42 \t final {"
"struct \t Blah_42 \t final {"
"class \t _42_Blah:public Foo {"
"struct \t _42_Blah:public Foo {"
"template \t < class T >"
"template< class T >"
"#include <string>"
"#include<iostream>"
"#include \t <map>"))
(mapc (lambda (content) (funcall do-test content 'c-mode))
'("struct \t Blah_42 \t {"
"struct template {"
"struct Blah;"
"#include <string.h>")))))
(ert-deftest c-mode-macro-comment ()
"Test for bug#36484."
(dolist (macro-string '("#define /***/f"
"#define x /***/5"
"#define a(x)get/***/x/***/id())"))
(with-temp-buffer
(insert macro-string)
(c-mode))))
(ert-deftest c-lineup-ternary-bodies ()
"Test for c-lineup-ternary-bodies function"
(with-temp-buffer
(c-mode)
(let* ((common-prefix "int value = condition ")
(expected-column (length common-prefix)))
(dolist (test '(("? a : \n b" . nil)
("? a \n ::b" . nil)
("a \n : b" . nil)
("? a \n : b" . t)
("? ::a \n : b" . t)
("? (p ? q : r) \n : b" . t)
("? p ?: q \n : b" . t)
("? p ? : q \n : b" . t)
("? p ? q : r \n : b" . t)))
(delete-region (point-min) (point-max))
(insert common-prefix (car test))
(should (equal
(and (cdr test) (vector expected-column))
(c-lineup-ternary-bodies '(statement-cont . 1))))))))
;;; cc-mode-tests.el ends here
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