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-rw-r--r--test/lisp/emacs-lisp/bytecomp-tests.el19
1 files changed, 19 insertions, 0 deletions
diff --git a/test/lisp/emacs-lisp/bytecomp-tests.el b/test/lisp/emacs-lisp/bytecomp-tests.el
index bc47c82c1e1..acf9343914d 100644
--- a/test/lisp/emacs-lisp/bytecomp-tests.el
+++ b/test/lisp/emacs-lisp/bytecomp-tests.el
@@ -247,6 +247,20 @@
Each element will be executed by interpreter and with
bytecompiled code, and their results compared.")
+(defconst byte-opt-testsuite-cond-data
+ '(
+ (let ((a 3)) (cond ((eq a 1) 'one) ((eq a 2) 'two) ((eq a 3) 'three) (t t)))
+ (let ((a 'three)) (cond ((eq a 'one) 1) ((eq a 2) 'two) ((eq a 'three) 3)
+ (t t)))
+ (let ((a 2)) (cond ((eq a 'one) 1) ((eq a 1) 'one) ((eq a 2) 'two)
+ (t nil)))
+ (let ((a 2.0)) (cond ((eql a 2) 'incorrect) ((eql a 2.00) 'correct)))
+ (let ((a "foobar")) (cond ((equal "notfoobar" a) 'incorrect)
+ ((equal 1 a) 'incorrect)
+ ((equal a "foobar") 'correct)
+ (t 'incorrect))))
+ "List of expressions for testing byte-switch.")
+
(defun bytecomp-check-1 (pat)
"Return non-nil if PAT is the same whether directly evalled or compiled."
(let ((warning-minimum-log-level :emergency)
@@ -276,6 +290,11 @@ bytecompiled code, and their results compared.")
(dolist (pat byte-opt-testsuite-arith-data)
(should (bytecomp-check-1 pat))))
+(ert-deftest bytecomp-cond ()
+ "Test the Emacs byte compiler."
+ (dolist (pat byte-opt-testsuite-cond-data)
+ (should (bytecomp-check-1 pat))))
+
(defun test-byte-opt-arithmetic (&optional arg)
"Unit test for byte-opt arithmetic operations.
Subtests signal errors if something goes wrong."