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[Emacs-diffs] master e70d0c9: Add tests for Bug#30408
From: |
Paul Eggert |
Subject: |
[Emacs-diffs] master e70d0c9: Add tests for Bug#30408 |
Date: |
Wed, 21 Mar 2018 15:11:57 -0400 (EDT) |
branch: master
commit e70d0c9e66d7a8609450b2889869d16aeb0363b5
Author: Paul Eggert <address@hidden>
Commit: Paul Eggert <address@hidden>
Add tests for Bug#30408
* test/src/editfns-tests.el (format-%d-large-float)
(format-%x-large-float, format-%o-invalid-float): New tests.
---
test/src/editfns-tests.el | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/test/src/editfns-tests.el b/test/src/editfns-tests.el
index 69ea6f5..6e1f730 100644
--- a/test/src/editfns-tests.el
+++ b/test/src/editfns-tests.el
@@ -142,6 +142,27 @@
(should (string-equal (format "%#05X" #x10) "0X010"))
(should (string-equal (format "%#04x" 0) "0000")))
+;;; Test Bug#30408.
+(ert-deftest format-%d-large-float ()
+ (should (string-equal (format "%d" 18446744073709551616.0)
+ "18446744073709551616"))
+ (should (string-equal (format "%d" -18446744073709551616.0)
+ "-18446744073709551616")))
+
+;;; Another test for Bug#30408.
+;;; Perhaps Emacs will be improved someday to return the correct
+;;; answer for positive numbers instead of overflowing; in
+;;; that case this test will need to be changed. In the meantime make
+;;; sure Emacs is reporting the overflow correctly.
+(ert-deftest format-%x-large-float ()
+ (should-error (format "%x" 18446744073709551616.0)
+ :type 'overflow-error))
+
+;;; Another test for Bug#30408.
+(ert-deftest format-%o-invalid-float ()
+ (should-error (format "%o" -1e-37)
+ :type 'overflow-error))
+
;;; Check format-time-string with various TZ settings.
;;; Use only POSIX-compatible TZ values, since the tests should work
;;; even if tzdb is not in use.
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