summaryrefslogtreecommitdiff
path: root/test/src/image-tests.el
diff options
context:
space:
mode:
Diffstat (limited to 'test/src/image-tests.el')
-rw-r--r--test/src/image-tests.el245
1 files changed, 245 insertions, 0 deletions
diff --git a/test/src/image-tests.el b/test/src/image-tests.el
new file mode 100644
index 00000000000..2b236086b6f
--- /dev/null
+++ b/test/src/image-tests.el
@@ -0,0 +1,245 @@
+;;; image-tests.el --- Tests for image.c -*- lexical-binding: t -*-
+
+;; Copyright (C) 2021 Free Software Foundation, Inc.
+
+;; Author: Stefan Kangas <stefan@marxist.se>
+
+;; 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:
+
+;; Most of these tests will only run in a GUI session, and not with
+;; "make check". Run them manually in an interactive session with
+;; `M-x eval-buffer' followed by `M-x ert'.
+
+;;; Code:
+
+(require 'ert)
+
+(defmacro image-skip-unless (format)
+ `(skip-unless (and (display-images-p)
+ (image-type-available-p ,format))))
+
+;;;; Images
+
+(defconst image-tests--images
+ `((gif . ,(expand-file-name "test/data/image/black.gif"
+ source-directory))
+ (jpeg . ,(expand-file-name "test/data/image/black.jpg"
+ source-directory))
+ (pbm . ,(find-image '((:file "splash.svg" :type svg))))
+ (png . ,(find-image '((:file "splash.png" :type png))))
+ (svg . ,(find-image '((:file "splash.pbm" :type pbm))))
+ (tiff . ,(expand-file-name
+ "nextstep/GNUstep/Emacs.base/Resources/emacs.tiff"
+ source-directory))
+ (webp . ,(expand-file-name "test/data/image/black.webp"
+ source-directory))
+ (xbm . ,(find-image '((:file "gnus/gnus.xbm" :type xbm))))
+ (xpm . ,(find-image '((:file "splash.xpm" :type xpm))))))
+
+;;;; image-test-size
+
+(ert-deftest image-tests-image-size/gif ()
+ (image-skip-unless 'gif)
+ (pcase (image-size (create-image (cdr (assq 'gif image-tests--images))))
+ (`(,a . ,b)
+ (should (floatp a))
+ (should (floatp b)))))
+
+(ert-deftest image-tests-image-size/jpeg ()
+ (image-skip-unless 'jpeg)
+ (pcase (image-size (create-image (cdr (assq 'jpeg image-tests--images))))
+ (`(,a . ,b)
+ (should (floatp a))
+ (should (floatp b)))))
+
+(ert-deftest image-tests-image-size/pbm ()
+ (image-skip-unless 'pbm)
+ (pcase (image-size (cdr (assq 'pbm image-tests--images)))
+ (`(,a . ,b)
+ (should (floatp a))
+ (should (floatp b)))))
+
+(ert-deftest image-tests-image-size/png ()
+ (image-skip-unless 'png)
+ (pcase (image-size (cdr (assq 'png image-tests--images)))
+ (`(,a . ,b)
+ (should (floatp a))
+ (should (floatp b)))))
+
+(ert-deftest image-tests-image-size/svg ()
+ (image-skip-unless 'svg)
+ (pcase (image-size (cdr (assq 'svg image-tests--images)))
+ (`(,a . ,b)
+ (should (floatp a))
+ (should (floatp b)))))
+
+(ert-deftest image-tests-image-size/tiff ()
+ (image-skip-unless 'tiff)
+ (pcase (image-size (create-image (cdr (assq 'tiff image-tests--images))))
+ (`(,a . ,b)
+ (should (floatp a))
+ (should (floatp b)))))
+
+(ert-deftest image-tests-image-size/webp ()
+ (image-skip-unless 'webp)
+ (pcase (image-size (create-image (cdr (assq 'webp image-tests--images))))
+ (`(,a . ,b)
+ (should (floatp a))
+ (should (floatp b)))))
+
+(ert-deftest image-tests-image-size/xbm ()
+ (image-skip-unless 'xbm)
+ (pcase (image-size (cdr (assq 'xbm image-tests--images)))
+ (`(,a . ,b)
+ (should (floatp a))
+ (should (floatp b)))))
+
+(ert-deftest image-tests-image-size/xpm ()
+ (image-skip-unless 'xpm)
+ (pcase (image-size (cdr (assq 'xpm image-tests--images)))
+ (`(,a . ,b)
+ (should (floatp a))
+ (should (floatp b)))))
+
+(ert-deftest image-tests-image-size/error-on-invalid-spec ()
+ (skip-unless (display-images-p))
+ (should-error (image-size 'invalid-spec)))
+
+(ert-deftest image-tests-image-size/error-on-nongraphical-display ()
+ (skip-unless (not (display-images-p)))
+ (should-error (image-size 'invalid-spec)))
+
+;;;; image-mask-p
+
+(ert-deftest image-tests-image-mask-p/gif ()
+ (image-skip-unless 'gif)
+ (should-not (image-mask-p (create-image
+ (cdr (assq 'gif image-tests--images))))))
+
+(ert-deftest image-tests-image-mask-p/jpeg ()
+ (image-skip-unless 'jpeg)
+ (should-not (image-mask-p (create-image
+ (cdr (assq 'jpeg image-tests--images))))))
+
+(ert-deftest image-tests-image-mask-p/pbm ()
+ (image-skip-unless 'pbm)
+ (should-not (image-mask-p (cdr (assq 'pbm image-tests--images)))))
+
+(ert-deftest image-tests-image-mask-p/png ()
+ (image-skip-unless 'png)
+ (should-not (image-mask-p (cdr (assq 'png image-tests--images)))))
+
+(ert-deftest image-tests-image-mask-p/svg ()
+ (image-skip-unless 'svg)
+ (should-not (image-mask-p (cdr (assq 'svg image-tests--images)))))
+
+(ert-deftest image-tests-image-mask-p/tiff ()
+ (image-skip-unless 'tiff)
+ (should-not (image-mask-p (create-image
+ (cdr (assq 'tiff image-tests--images))))))
+
+(ert-deftest image-tests-image-mask-p/webp ()
+ (image-skip-unless 'webp)
+ (should-not (image-mask-p (create-image
+ (cdr (assq 'webp image-tests--images))))))
+
+(ert-deftest image-tests-image-mask-p/xbm ()
+ (image-skip-unless 'xbm)
+ (should-not (image-mask-p (cdr (assq 'xbm image-tests--images)))))
+
+(ert-deftest image-tests-image-mask-p/xpm ()
+ (image-skip-unless 'xpm)
+ (should-not (image-mask-p (cdr (assq 'xpm image-tests--images)))))
+
+(ert-deftest image-tests-image-mask-p/error-on-invalid-spec ()
+ (skip-unless (display-images-p))
+ (should-error (image-mask-p 'invalid-spec)))
+
+(ert-deftest image-tests-image-mask-p/error-on-nongraphical-display ()
+ (skip-unless (not (display-images-p)))
+ (should-error (image-mask-p (cdr (assq 'xpm image-tests--images)))))
+
+;;;; image-metadata
+
+;; TODO: These tests could be expanded with files that actually
+;; contain metadata.
+
+(ert-deftest image-tests-image-metadata/gif ()
+ (image-skip-unless 'gif)
+ (should-not (image-metadata
+ (create-image (cdr (assq 'gif image-tests--images))))))
+
+(ert-deftest image-tests-image-metadata/jpeg ()
+ (image-skip-unless 'jpeg)
+ (should-not (image-metadata
+ (create-image (cdr (assq 'jpeg image-tests--images))))))
+
+(ert-deftest image-tests-image-metadata/pbm ()
+ (image-skip-unless 'pbm)
+ (should-not (image-metadata (cdr (assq 'pbm image-tests--images)))))
+
+(ert-deftest image-tests-image-metadata/png ()
+ (image-skip-unless 'png)
+ (should-not (image-metadata (cdr (assq 'png image-tests--images)))))
+
+(ert-deftest image-tests-image-metadata/svg ()
+ (image-skip-unless 'svg)
+ (should-not (image-metadata (cdr (assq 'svg image-tests--images)))))
+
+(ert-deftest image-tests-image-metadata/tiff ()
+ (image-skip-unless 'tiff)
+ (should-not (image-metadata
+ (create-image (cdr (assq 'tiff image-tests--images))))))
+
+(ert-deftest image-tests-image-metadata/webp ()
+ (image-skip-unless 'webp)
+ (should-not (image-metadata
+ (create-image (cdr (assq 'webp image-tests--images))))))
+
+(ert-deftest image-tests-image-metadata/xbm ()
+ (image-skip-unless 'xbm)
+ (should-not (image-metadata (cdr (assq 'xbm image-tests--images)))))
+
+(ert-deftest image-tests-image-metadata/xpm ()
+ (image-skip-unless 'xpm)
+ (should-not (image-metadata (cdr (assq 'xpm image-tests--images)))))
+
+(ert-deftest image-tests-image-metadata/nil-on-invalid-spec ()
+ (skip-unless (display-images-p))
+ (should-not (image-metadata 'invalid-spec)))
+
+(ert-deftest image-tests-image-metadata/error-on-nongraphical-display ()
+ (skip-unless (not (display-images-p)))
+ (should-error (image-metadata (cdr (assq 'xpm image-tests--images)))))
+
+;;;; ImageMagick
+
+(ert-deftest image-tests-imagemagick-types ()
+ (skip-unless (fboundp 'imagemagick-types))
+ (when (fboundp 'imagemagick-types)
+ (should (listp (imagemagick-types)))))
+
+;;;; Initialization
+
+(ert-deftest image-tests-init-image-library ()
+ (skip-unless (fboundp 'init-image-library))
+ (should (init-image-library 'pbm)) ; built-in
+ (should (init-image-library 'xpm)) ; built-in
+ (should-not (init-image-library 'invalid-image-type)))
+
+;;; image-tests.el ends here
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-03 04:48:51 +0000