branch core-updates-frozen updated: tests: base: Fix the screendump test.

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The following commit(s) were added to refs/heads/core-updates-frozen by this 
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     new d27e871  tests: base: Fix the screendump test.
d27e871 is described below

commit d27e871ebb4ca84e291782c8d875976e921deccc
Author: Mathieu Othacehe <othacehe@gnu.org>
AuthorDate: Mon Sep 27 20:07:16 2021 +0000

    tests: base: Fix the screendump test.
    
    * gnu/tests/base.scm (run-basic-test): Look for the screendump capture where
    it has been saved, in the output directory.
---
 gnu/tests/base.scm | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/gnu/tests/base.scm b/gnu/tests/base.scm
index 4bc3598..9198a3e 100644
--- a/gnu/tests/base.scm
+++ b/gnu/tests/base.scm
@@ -484,10 +484,11 @@ info --version")
 
           (test-assert "screendump"
             (begin
-              (marionette-control (string-append "screendump " #$output
-                                                 "/tty1.ppm")
-                                  marionette)
-              (file-exists? "tty1.ppm")))
+              (let ((capture
+                     (string-append #$output "/tty1.ppm")))
+                (marionette-control
+                 (string-append "screendump " capture) marionette)
+                (file-exists? capture))))
 
           (test-assert "screen text"
             (let ((text (marionette-screen-text marionette