def _check_remove_and_add_package(database, spec):
"""Remove a spec from the DB, then add it and make sure everything's
still ok once it is added. This checks that it was
removed, that it's back when added again, and that ref
counts are consistent.
"""
original = database.query()
database._check_ref_counts()
# Remove spec
concrete_spec = database.remove(spec)
database._check_ref_counts()
remaining = database.query()
# ensure spec we removed is gone
assert len(original) - 1 == len(remaining)
assert all(s in original for s in remaining)
assert concrete_spec not in remaining
# add it back and make sure everything is ok.
database.add(concrete_spec, spack.store.layout)
installed = database.query()
assert concrete_spec in installed
assert installed == original
# sanity check against direcory layout and check ref counts.
_check_db_sanity(database)
database._check_ref_counts()
def test_040_ref_counts(database):
"""Ensure that we got ref counts right when we read the DB."""
database._check_ref_counts()
