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"""module contains tests from datasets"""
import json
from unittest import TestCase
from unittest import mock
from collections import namedtuple
from gn3.computations.datasets import retrieve_trait_sample_data
from gn3.computations.datasets import get_query_for_dataset_sample
from gn3.computations.datasets import fetch_from_db_sample_data
from gn3.computations.datasets import create_dataset
from gn3.computations.datasets import dataset_creator_store
from gn3.computations.datasets import dataset_type_getter
from gn3.computations.datasets import fetch_dataset_type_from_gn2_api
from gn3.computations.datasets import fetch_dataset_sample_id
from gn3.computations.datasets import divide_into_chunks
from gn3.computations.datasets import get_traits_data
class TestDatasets(TestCase):
"""class contains tests for datasets"""
@mock.patch("gn3.computations.datasets.fetch_from_db_sample_data")
def test_retrieve_trait_sample_data(self, mock_fetch_sample_results):
"""test retrieving sample data\
for trait from the dataset"""
trait_name = "1419792_at"
dataset_id = "HC_M2_0606_P&"
dataset_type = "Publish"
dataset = {
"id": dataset_id,
"type": dataset_type,
"name": dataset_id
}
fetch_results = [('BXD32', 8.001, None, None, 'BXD32')]
mock_fetch_sample_results.return_value = fetch_results
results = retrieve_trait_sample_data(
dataset, trait_name)
self.assertEqual(mock_fetch_sample_results.call_count, 1)
self.assertEqual(results, fetch_results)
def test_query_for_dataset_sample(self):
"""test for getting query for sample data"""
no_results = get_query_for_dataset_sample("does not exists")
query_exists = get_query_for_dataset_sample("Publish")
self.assertEqual(no_results, None)
self.assertIsInstance(query_exists, str)
def test_fetch_from_db_sample_data(self):
"""test for function that fetches sample\
results from the database"""
database_results = [('BXD31', 8.001, None, None, 'BXD31'),
('BXD32', 7.884, None, None, 'BXD32'),
('BXD42', 7.682, None, None, 'BXD42'),
('BXD42', 7.682, None, None, 'BXD42'),
('BXD40', 7.945, None, None, 'BXD40'),
('BXD43', 7.873, None, None, 'BXD43')
]
database = mock.Mock()
db_cursor = mock.Mock()
db_cursor.execute.return_value = 6
db_cursor.fetchall.return_value = database_results
database.cursor.return_value = db_cursor
mock_pheno_query = """
SELECT
Strain.Name, PublishData.value, PublishSE.error,NStrain.count, Strain.Name2
WHERE
PublishXRef.InbredSetId = PublishFreeze.InbredSetId AND
PublishData.Id = PublishXRef.DataId AND PublishXRef.Id = 1419792_at AND
PublishFreeze.Id = '12' AND PublishData.StrainId = Strain.Id
Order BY
Strain.Name
"""
fetch_results = fetch_from_db_sample_data(mock_pheno_query, database)
self.assertEqual(fetch_results, database_results)
@mock.patch("gn3.computations.datasets.dataset_creator_store")
@mock.patch("gn3.computations.datasets.dataset_type_getter")
def test_create_dataset(self, mock_dataset_type, mock_store):
"""test function that creates/fetches required dataset\
can either be published phenotype,genotype,Microarray or\
user defined ->Temp"""
probe_name = "HC_M2_0606_P"
probe_type = "ProbeSet"
mock_dataset_creator = namedtuple(
'ProbeSet', ["dataset_name", "dataset_type"])
mock_store.return_value = mock_dataset_creator
mock_dataset_type.return_value = probe_type
dataset = create_dataset(
dataset_type=None, dataset_name=probe_name)
self.assertEqual(dataset.dataset_name, probe_name)
self.assertEqual(dataset.dataset_type, probe_type)
def test_dataset_creator_store(self):
"""test for functions that actual
function to create differerent \
datasets"""
results = dataset_creator_store("ProbeSet")
self.assertTrue(results)
def test_dataset_type_getter(self):
"""test for fetching type of dataset given\
the dataset name"""
redis_instance = mock.Mock()
# found in redis
redis_instance.get.return_value = "ProbeSet"
results = dataset_type_getter("HC_M2_0_P", redis_instance)
self.assertEqual(results, "ProbeSet")
@mock.patch("gn3.computations.datasets.requests")
def test_fetch_dataset_type_from_gn2_api(self, mock_request):
"""test for function that test fetching\
all datasets from gn2 api in order to store\
in redis"""
expected_json_results = {"datasets": {
"arabidopsis": {
"BayXSha": {
"Genotypes": [
[
"None",
"BayXShaGeno",
"BayXSha Genotypes"
]
],
"Phenotypes": [
[
"642",
"BayXShaPublish",
"BayXSha Published Phenotypes"
]
]
}
}
}}
request_results = json.dumps(expected_json_results)
mock_request.get.return_value.content = request_results
results = fetch_dataset_type_from_gn2_api("HC_M2_0_P")
expected_results = {
"BayXShaGeno": "Geno",
"642": "Publish"
}
self.assertEqual(expected_results, results)
def test_fetch_dataset_sample_id(self):
"""get from the database the sample\
id if only in the samplelists"""
expected_results = {"B6D2F1": 1, "BXD1": 4, "BXD11": 10,
"BXD12": 11, "BXD13": 12, "BXD15": 14, "BXD16": 15}
database_instance = mock.Mock()
database_cursor = mock.Mock()
database_cursor.execute.return_value = 5
database_cursor.fetchall.return_value = list(expected_results.items())
database_instance.cursor.return_value = database_cursor
strain_list = ["B6D2F1", "BXD1", "BXD11",
"BXD12", "BXD13", "BXD16", "BXD15"]
results = fetch_dataset_sample_id(
samplelist=strain_list, database=database_instance, species="mouse")
self.assertEqual(results, expected_results)
@mock.patch("gn3.computations.datasets.fetch_from_db_sample_data")
@mock.patch("gn3.computations.datasets.divide_into_chunks")
def test_get_traits_data(self, mock_divide_into_chunks, mock_fetch_samples):
"""test for for function to get data\
of traits in dataset"""
expected_results = {'AT_DSAFDS': [
12, 14, 13, 23, 12, 14, 13, 23, 12, 14, 13, 23]}
database = mock.Mock()
sample_id = [1, 2, 7, 3, 22, 8]
mock_divide_into_chunks.return_value = [
[1, 2, 7], [3, 22, 8], [5, 22, 333]]
mock_fetch_samples.return_value = ("AT_DSAFDS", 12, 14, 13, 23)
results = get_traits_data(sample_id, database, "HC_M2", "Publish")
self.assertEqual(expected_results, dict(results))
def test_divide_into_chunks(self):
"""test for dividing a list into given number of\
chunks for example"""
results = divide_into_chunks([1, 2, 7, 3, 22, 8, 5, 22, 333], 3)
expected_results = [[1, 2, 7], [3, 22, 8], [5, 22, 333]]
self.assertEqual(results, expected_results)
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