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-rw-r--r--test/lisp/image-tests.el12
1 files changed, 12 insertions, 0 deletions
diff --git a/test/lisp/image-tests.el b/test/lisp/image-tests.el
index 2b3e818d720..908df09f15f 100644
--- a/test/lisp/image-tests.el
+++ b/test/lisp/image-tests.el
@@ -74,6 +74,18 @@
(should (listp (find-image '((:type png :file "newsticker/rss-feed.png" :ascent center)))))
(should-not (find-image '((:type png :file "does-not-exist-foo-bar.png")))))
+(ert-deftest image-supported-file-p/built-in ()
+ ;; (skip-unless (image-type-available-p 'pbm)) ; always built-in
+ (should (eq (image-supported-file-p "foo.pbm") 'pbm)))
+
+(ert-deftest image-supported-file-p/optional ()
+ (if (image-type-available-p 'jpeg)
+ (should (eq (image-supported-file-p "foo.jpg") 'jpeg))
+ (should-not (image-supported-file-p "foo.jpg"))))
+
+(ert-deftest image-supported-file-p/unsupported-returns-nil ()
+ (should-not (image-supported-file-p "foo.some-unsupported-format")))
+
(ert-deftest image-type-from-file-name ()
(with-suppressed-warnings ((obsolete image-type-from-file-name))
(should (eq (image-type-from-file-name "foo.jpg") 'jpeg))