If a plugin reports a date_authored or date_updated we can't parse,
remove the invalid property from the metadata hashref and emit a
warning.
To test this, introduce a separate test plugin directory and test file.
Having a plugin that produces warnings in the main test directory would
require accounting for this warning in every existing test that loads
plugins. Correspondingly, this patch also fixes an invalid date in an
existing test plugin.
Test plan:
1. Apply patch.
2. Run `prove -r t/db_dependent/Koha/Plugins/` and verify there are no
test failures.
Sponsored-by: Open Fifth
Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Laura_Escamilla <laura.escamilla@bywatersolutions.com>
Signed-off-by: Pedro Amorim <pedro.amorim@openfifth.co.uk>
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