GNU bug report logs - #30219
ert explainer for `equal' fails for equal-but-for-multibyte-ness strings

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From: Philipp <p.stephani2@HIDDEN>
To: bug-gnu-emacs@HIDDEN
Subject: 27.0.50; (should (equal ...)) bug for string equality
Date: Mon, 22 Jan 2018 23:55:13 +0100
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Define the following ERT test:

(ert-deftest foo ()
  (should (equal "a\xFF" "a\u00FF")))

Then run M-x ert.  The test triggers an assertion.  This is because ERT
incorrectly assumes that two arrays are equal if their lengths and
elements are equal, but that's not the case when comparing unibyte and
multibyte strings.


In GNU Emacs 27.0.50 (build 10, x86_64-apple-darwin17.3.0, NS appkit-1561.20 Version 10.13.2 (Build 17C205))
 of 2018-01-22 built on p
Repository revision: 3558d96b60393893a346f4382b813ca0738f9d9b
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Memory information:
((conses 16 204871 8960)
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