Alexander Adolf <alexander.ad...@condition-alpha.com> writes:

> 4 unexpected results:
>    FAILED  ob-calc/matrix-inversion  ((should (equal "[[-1, 0.625, -0.125], 
> [0.25, -0.5, 0.25], [0.5, 0.125, -0.125]]" (org-babel-execute-src-block))) 
> :form (equal "[[-1, 0.625, -0.125], [0.25, -0.5, 0.25], [0.5, 0.125, 
> -0.125]]" "[[-1, 625e-3, -125e-3], [250e-3, -500e-3, 250e-3], [500e-3, 
> 125e-3, -125e-3]]") :value nil :explanation (arrays-of-different-length 63 77 
> "[[-1, 0.625, -0.125], [0.25, -0.5, 0.25], [0.5, 0.125, -0.125]]" "[[-1, 
> 625e-3, -125e-3], [250e-3, -500e-3, 250e-3], [500e-3, 125e-3, -125e-3]]" 
> first-mismatch-at 6))

Will the failure disappear if you try the attached patch?

>From fb317be318aaf32104e9334d34813681c26ac240 Mon Sep 17 00:00:00 2001
Message-ID: <fb317be318aaf32104e9334d34813681c26ac240.1714651740.git.yanta...@posteo.net>
From: Ihor Radchenko <yanta...@posteo.net>
Date: Thu, 2 May 2024 15:07:12 +0300
Subject: [PATCH] ob-calc/matrix-inversion: Force `calc-float-format' in the
 test

* testing/lisp/test-ob-calc.el (ob-calc/matrix-inversion): When
testing, make sure that calc output follows the expected format.
This is needed on MacOS where Emacs defaults are not exactly the same.

Reported-by: Alexander Adolf <alexander.ad...@condition-alpha.com>
Link: https://list.orgmode.org/orgmode/91dfeb0fed1a1fe0564e5eb9b95a4...@condition-alpha.com/
---
 testing/lisp/test-ob-calc.el | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/testing/lisp/test-ob-calc.el b/testing/lisp/test-ob-calc.el
index 6d6ca104d..e5f2cee0b 100644
--- a/testing/lisp/test-ob-calc.el
+++ b/testing/lisp/test-ob-calc.el
@@ -59,7 +59,14 @@ (ert-deftest ob-calc/matrix-inversion ()
 	inv(a)
 #+END_SRC "
     (should (equal "[[-1, 0.625, -0.125], [0.25, -0.5, 0.25], [0.5, 0.125, -0.125]]"
-                   (org-babel-execute-src-block)))))
+                   (let ((calc-float-format '(float 0)))
+                     ;; ;; Make sure that older Calc buffers are not present.
+                     (save-current-buffer
+                       (when (ignore-errors (calc-select-buffer))
+                         (kill-buffer)))
+                     ;; Now, let-bound `calc-float-format' will take
+                     ;; effect.
+                     (org-babel-execute-src-block))))))
 
 (ert-deftest ob-calc/matrix-algebra ()
   "Test of simple matrix algebra."
-- 
2.44.0

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>

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