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emacs/test/automated/xref-tests.el
Dmitry Gutov 922c7a3e48 Rework xref-query-replace-in-results
* lisp/progmodes/xref.el (xref-query-replace-in-results): Collect
all xrefs from the buffer first, then delegate most of the
processing to the value returned by xref--buf-pairs-iterator.
(xref--buf-pairs-iterator): New function.  Return an "iterator"
which partitions returned markers into buffers, and only processes
markers from one buffer at a time.  When an xref is out of date,
skip it with a message instead of signaling error (bug#23284).
(xref--outdated-p): Extract from xref--buf-pairs-iterator.  Trim
CR from both strings before comparing.
(xref--query-replace-1): Remove the variable current-buf, no need
to track it anymore.  Simplify the filter-predicate and search
functions accordingly.  Iterate over buffer-markers pairs returned
by the iterator, and call `perform-replace' for each of them.  Use
multi-query-replace-map (bug#23284).  Use `switch-to-buffer' every
time after the first, in order not to jump between windows.

* test/automated/xref-tests.el
(xref--buf-pairs-iterator-groups-markers-by-buffers-1)
(xref--buf-pairs-iterator-groups-markers-by-buffers-2)
(xref--buf-pairs-iterator-cleans-up-markers): New tests.
2016-05-05 03:26:04 +03:00

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4.0 KiB
EmacsLisp

;;; xref-tests.el --- tests for xref
;; Copyright (C) 2016 Free Software Foundation, Inc.
;; Author: Dmitry Gutov <dgutov@yandex.ru>
;; 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 <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
(require 'xref)
(require 'cl-lib)
(defvar xref-tests-data-dir
(expand-file-name "data/xref/"
(file-name-directory (or load-file-name (buffer-file-name)))))
(ert-deftest xref-collect-matches-finds-none-for-some-regexp ()
(should (null (xref-collect-matches "zzz" "*" xref-tests-data-dir nil))))
(ert-deftest xref-collect-matches-finds-some-for-bar ()
(let* ((matches (xref-collect-matches "bar" "*" xref-tests-data-dir nil))
(locs (cl-sort (mapcar #'xref-item-location matches)
#'string<
:key #'xref-location-group)))
(should (= 2 (length matches)))
(should (string-match-p "file1\\.txt\\'" (xref-location-group (nth 0 locs))))
(should (string-match-p "file2\\.txt\\'" (xref-location-group (nth 1 locs))))))
(ert-deftest xref-collect-matches-finds-two-matches-on-the-same-line ()
(let* ((matches (xref-collect-matches "foo" "*" xref-tests-data-dir nil))
(locs (mapcar #'xref-item-location matches)))
(should (= 2 (length matches)))
(should (string-match-p "file1\\.txt\\'" (xref-location-group (nth 0 locs))))
(should (string-match-p "file1\\.txt\\'" (xref-location-group (nth 1 locs))))
(should (equal 1 (xref-location-line (nth 0 locs))))
(should (equal 1 (xref-location-line (nth 1 locs))))
(should (equal 0 (xref-file-location-column (nth 0 locs))))
(should (equal 4 (xref-file-location-column (nth 1 locs))))))
(ert-deftest xref-collect-matches-finds-an-empty-line-regexp-match ()
(let* ((matches (xref-collect-matches "^$" "*" xref-tests-data-dir nil))
(locs (mapcar #'xref-item-location matches)))
(should (= 1 (length matches)))
(should (string-match-p "file2\\.txt\\'" (xref-location-group (nth 0 locs))))
(should (equal 1 (xref-location-line (nth 0 locs))))
(should (equal 0 (xref-file-location-column (nth 0 locs))))))
(ert-deftest xref--buf-pairs-iterator-groups-markers-by-buffers-1 ()
(let* ((xrefs (xref-collect-matches "foo" "*" xref-tests-data-dir nil))
(iter (xref--buf-pairs-iterator xrefs))
(cons (funcall iter :next)))
(should (null (funcall iter :next)))
(should (string-match "file1\\.txt\\'" (buffer-file-name (car cons))))
(should (= 2 (length (cdr cons))))))
(ert-deftest xref--buf-pairs-iterator-groups-markers-by-buffers-2 ()
(let* ((xrefs (xref-collect-matches "bar" "*" xref-tests-data-dir nil))
(iter (xref--buf-pairs-iterator xrefs))
(cons1 (funcall iter :next))
(cons2 (funcall iter :next)))
(should (null (funcall iter :next)))
(should-not (equal (car cons1) (car cons2)))
(should (= 1 (length (cdr cons1))))
(should (= 1 (length (cdr cons2))))))
(ert-deftest xref--buf-pairs-iterator-cleans-up-markers ()
(let* ((xrefs (xref-collect-matches "bar" "*" xref-tests-data-dir nil))
(iter (xref--buf-pairs-iterator xrefs))
(cons1 (funcall iter :next))
(cons2 (funcall iter :next)))
(funcall iter :cleanup)
(should (null (marker-position (car (nth 0 (cdr cons1))))))
(should (null (marker-position (cdr (nth 0 (cdr cons1))))))
(should (null (marker-position (car (nth 0 (cdr cons2))))))
(should (null (marker-position (cdr (nth 0 (cdr cons2))))))))