def test_chained_read_through_write():
foo = artifact_record(id='foo')
read_repo = r.MemoryRepo([foo], read=True, write=False)
repo_ahead = r.MemoryRepo(read=True, write=True, read_through_write=True)
read_through_write_repo = r.MemoryRepo(read=True,
write=True,
read_through_write=True)
no_read_through_write_repo = r.MemoryRepo(read=True,
write=True,
read_through_write=False)
repos = [
no_read_through_write_repo, read_through_write_repo, read_repo,
repo_ahead
]
chained_repo = r.ChainedRepo(repos)
assert 'foo' not in read_through_write_repo
assert 'foo' not in no_read_through_write_repo
assert 'foo' not in repo_ahead
# verify we read from the read-only store
assert chained_repo['foo'].id == foo.id
assert 'foo' in read_through_write_repo
assert 'foo' not in repo_ahead
assert 'foo' not in no_read_through_write_repo
def repo(request, db_session):
# clean old config settings
r.Config.set_current(r.Config({}, {}, None))
disk_store_gen = None
disk_store_gen2 = None
repo2 = None
prevdir = os.getcwd()
if request.param == 'memoryrepo':
repo = r.MemoryRepo(read=True, write=True, delete=True)
elif request.param == 'dbrepo-diskstore':
disk_store_gen = disk_store()
repo = r.DbRepo(db_session,
next(disk_store_gen),
read=True,
write=True,
delete=True)
elif request.param == 'chained-memmem':
repo = r.ChainedRepo([
r.MemoryRepo(read=True, write=True, delete=True),
r.MemoryRepo(read=True, write=True, delete=True),
])
elif request.param == 'chained-repo':
disk_store_gen = disk_store()
disk_store_gen2 = disk_store()
repo1 = r.DbRepo(db_session,
next(disk_store_gen),
read=True,
write=True,
delete=True)
os.chdir(prevdir)
repo2 = r.DbRepo(
'postgresql://localhost/test_provenance',
next(disk_store_gen2),
read=True,
write=True,
delete=True,
schema='second_repo',
)
repo = r.ChainedRepo([repo1, repo2])
else:
repo = r.DbRepo(db_session,
memory_store(),
read=True,
write=True,
delete=True)
p.set_default_repo(repo)
yield repo
p.set_default_repo(None)
if repo2 is not None:
repo2._db_engine.execute('drop schema second_repo cascade;')
if disk_store_gen:
next(disk_store_gen, 'ignore')
if disk_store_gen2:
next(disk_store_gen2, 'ignore')
def test_chained_writes_may_be_allowed_on_read_throughs_only():
foo = artifact_record(id='foo')
read_repo = r.MemoryRepo([foo], read=True, write=False)
read_through_write_only_repo = r.MemoryRepo(read=True, write=False, read_through_write=True)
write_repo = r.MemoryRepo(read=True, write=True, read_through_write=False)
repos = [write_repo, read_through_write_only_repo, read_repo]
chained_repo = r.ChainedRepo(repos)
# verify we read from the read-only repo
assert chained_repo['foo'].id == foo.id
assert 'foo' in read_through_write_only_repo
assert 'foo' not in write_repo
bar = artifact_record(id='bar')
chained_repo.put(bar)
assert 'bar' in chained_repo
assert 'bar' not in read_through_write_only_repo
assert 'bar' in write_repo
def test_chained_with_readonly():
read_repo = r.MemoryRepo([artifact_record(id='foo')],
read=True, write=False, delete=False)
write_repo = r.MemoryRepo(read=True, write=True, delete=False)
repos = [read_repo, write_repo]
chained = r.ChainedRepo(repos)
# verify we read from the read-only store
assert 'foo' in chained
# but that it is not written to
record = artifact_record(id='bar', value_id='baz')
chained.put(record)
assert 'bar' in chained
assert 'bar' in write_repo
assert 'bar' not in read_repo
assert chained.get_by_value_id(record.value_id).id == record.id
assert chained.get_by_id(record.id).id == record.id
assert chained.get_value(record) == record.value
def memory_repo():
repo = r.MemoryRepo(read=True, write=True, delete=True)
p.set_default_repo(repo)
yield repo
p.set_default_repo(None)