/
test_signature_json.py
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/
test_signature_json.py
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import sys
import io
import json
import ijson
import sourmash
from sourmash.signature import SourmashSignature
from sourmash.signature_json import (_json_next_atomic_array,
_json_next_signature,
load_signature_json,
load_signatures_json,
load_signatureset_json_iter,
save_signatures_json)
from collections import OrderedDict
def test__json_next_atomic_array():
t = (2,3,4,5,6)
s = json.dumps(t)
if sys.version_info[0] < 3:
s = unicode(s)
it = ijson.parse(io.StringIO(s))
a = _json_next_atomic_array(it)
assert len(t) == len(a)
assert all(x == y for x,y in zip(t, a))
# integration test more than a unit test...
def test__json_next_signature():
name = 'Foo Bar'
filename = '/tmp/foobar'
minhash = (2,3,4,5,6)
t = OrderedDict((('ksize', 21),
('num', len(minhash)),
#('md5sum', ),
('cardinality', 123456),
('mins', minhash)))
s = json.dumps(t)
if sys.version_info[0] < 3:
s = unicode(s)
it = ijson.parse(io.StringIO(s))
# no MD5SUM
sig = _json_next_signature(it, name, filename,
ignore_md5sum=True,
ijson=ijson)
## check MD5SUM
minhash = (5,)
t = OrderedDict((('ksize', 20),
('num', len(minhash)),
('md5sum', 'eae27d77ca20db309e056e3d2dcd7d69'),
('cardinality', 123456),
('mins', minhash)))
s = json.dumps(t)
if sys.version_info[0] < 3:
s = unicode(s)
it = ijson.parse(io.StringIO(s))
sig = _json_next_signature(it, name, filename,
ignore_md5sum=False,
ijson=ijson)
# integration test more than a unit test
def test_load_signature_json():
name = 'Foo Bar'
filename = '/tmp/foobar'
minhash = (2,3,4,5,6)
t = OrderedDict((('name', name),
('filename', filename),
('signatures',
(
OrderedDict((('ksize', 21),
('num', len(minhash)),
#('md5sum', ),
('cardinality', 123456),
('mins', minhash))),
))))
s = json.dumps(t)
if sys.version_info[0] < 3:
s = unicode(s)
it = ijson.parse(io.StringIO(s))
# no MD5SUM
sig_entry = load_signature_json(it, ignore_md5sum=True)
# integration test more than a unit test
def test_load_signaturesset_json_iter():
t = list()
for name, filename in (('Foo', '/tmp/foo'),
('Bar', '/tmp/bar')):
minhash = (2,3,4,5,6)
t.append(OrderedDict((
('class', 'sourmash_signature'),
('name', name),
('filename', filename),
('signatures',
(
OrderedDict((('ksize', 21),
('num', len(minhash)),
#('md5sum', ),
('cardinality', 123456),
('mins', minhash))),
)))))
s = json.dumps(t)
if sys.version_info[0] < 3:
s = unicode(s)
# no MD5SUM
sig_entries = tuple(load_signatureset_json_iter(io.StringIO(s),
ignore_md5sum=True,
ijson=ijson))
assert len(sig_entries) == 2
# integration test more than a unit test
def test_load_signaturesset_json_iter_molecules():
t = list()
molecules = 'DNA', 'protein', 'dayhoff'
names = "Foo", 'Bar', "Biz"
filenames = '/tmp/foo', '/tmp/bar', '/tmp/biz'
for molecule, name, filename in zip(molecules, names, filenames):
minhash = (2,3,4,5,6)
t.append(OrderedDict((
('class', 'sourmash_signature'),
('name', name),
('filename', filename),
('signatures',
(
OrderedDict((('ksize', 21),
('num', len(minhash)),
#('md5sum', ),
('molecule', molecule),
('cardinality', 123456),
('mins', minhash))),
)))))
s = json.dumps(t)
if sys.version_info[0] < 3:
s = unicode(s)
# no MD5SUM
sig_entries = tuple(load_signatureset_json_iter(io.StringIO(s),
ignore_md5sum=True,
ijson=ijson))
# Ensure all molecule types were read properly
assert len(sig_entries) == 3
def test_save_load_multisig_json():
e1 = sourmash.MinHash(n=1, ksize=20)
sig1 = SourmashSignature(e1)
e2 = sourmash.MinHash(n=1, ksize=25)
sig2 = SourmashSignature(e2)
x = save_signatures_json([sig1, sig2])
y = list(load_signatures_json(x))
print(x)
assert len(y) == 2
assert sig1 in y # order not guaranteed, note.
assert sig2 in y
assert sig1 != sig2