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dot: improve output to work around GraphViz bug

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The related GraphViz issue is
https://gitlab.com/graphviz/graphviz/-/issues/2179

* spot/twaalgos/dot.cc: Avoid initial newline in title.
* NEWS: Mention the bug.
* tests/core/det.test, tests/core/dstar.test,
tests/core/neverclaimread.test, tests/python/automata-io.ipynb: Adjust
test cases.
This commit is contained in:
Alexandre Duret-Lutz 2022-01-11 22:19:20 +01:00
parent 78bcd9c453
commit 890423936f
6 changed files with 23 additions and 11 deletions
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8
tests/core/dstar.test
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@ -1,7 +1,7 @@
#!/bin/sh
# -*- coding: utf-8 -*-
# Copyright (C) 2013-2016, 2018, 2020 Laboratoire de Recherche et
# Développement de l'Epita (LRDE).
# Copyright (C) 2013-2016, 2018, 2020, 2022 Laboratoire de Recherche
# et Développement de l'Epita (LRDE).
#
# This file is part of Spot, a model checking library.
#
@ -85,7 +85,7 @@ run 0 ../ikwiad -d -XDB -R3 dra.dstar | tee stdout
cat >expected <<EOF
digraph "" {
rankdir=LR
label="\n[Büchi]"
label="[Büchi]"
labelloc="t"
node [shape="circle"]
I [label="", style=invis, width=0]
@ -132,7 +132,7 @@ run 0 ../ikwiad -d -XDB dsa.dstar | tee stdout
cat >expected <<EOF
digraph "" {
rankdir=LR
label="\n[Büchi]"
label="[Büchi]"
labelloc="t"
node [shape="circle"]
I [label="", style=invis, width=0]