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Add a change event test setting an already empty many-many field (tags) to empty.

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This commit is contained in:
Charles Haley 2021-09-14 18:34:18 +01:00
parent e7d21ecd3f
commit b20e786080
1 changed files with 8 additions and 0 deletions
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8
src/calibre/db/tests/writing.py
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@ -871,6 +871,14 @@ def event_func(t, library_id, *args):
cache.set_field('tags', {1:'foo', 2:'bar', 3:'mumble'})
ae(event_set, {2, 3})
# test setting a many-many field to empty
event_set = set()
cache.set_field('tags', {1:''})
ae(event_set, {1,})
event_set = set()
cache.set_field('tags', {1:''})
ae(event_set, set())
# test setting title
event_set = set()
cache.set_field('title', {1:'Book 1'})