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twagraph: fix highlight-edges in defrag_states

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Fixes #555 reported by Dávid Smolka.

* spot/twa/twagraph.cc (defrag_states): Update highlight-edge.
* spot/graph/graph.hh (defrag_states): Just point to
twa_graph::defrag_states in a comment, because the latter relies
on the implementation detail of graph::defrag_state.
* tests/python/parsetgba.py: Add test case.
* NEWS: Mention the bug.
This commit is contained in:
Alexandre Duret-Lutz 2023-11-23 20:27:05 +01:00
parent 193fdd6f95
commit 55575a11e3
4 changed files with 66 additions and 0 deletions
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32
tests/python/parsetgba.py
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@ -91,3 +91,35 @@ State: 1
[f] 0
[t] 0
--END--""")
# Issue #555.
a3 = spot.automaton("""HOA: v1.1 States: 6 Start: 0 AP: 3 "a" "b" "c"
acc-name: Buchi Acceptance: 1 Inf(0) properties: trans-labels
explicit-labels state-acc !complete properties: !deterministic
exist-branch spot.highlight.edges: 5 3 6 1 7 3 8 2 --BODY-- State: 0 [0] 1 [0] 2
State: 1 [0] 3 State: 2 [0] 5 State: 3 {0} [0] 3 State: 4 {0} [0] 4
[1] 4 State: 5 {0} [1] 5 [2] 5 --END--""")
a3.purge_dead_states()
tc.assertEqual(a3.to_str("hoa", "1.1"), """HOA: v1.1
States: 5
Start: 0
AP: 3 "a" "b" "c"
acc-name: Buchi
Acceptance: 1 Inf(0)
properties: trans-labels explicit-labels state-acc !complete
properties: !deterministic exist-branch
spot.highlight.edges: 5 3 6 2
--BODY--
State: 0
[0] 1
[0] 2
State: 1
[0] 3
State: 2
[0] 4
State: 3 {0}
[0] 3
State: 4 {0}
[1] 4
[2] 4
--END--""")