Files
cellxgene/server/test/test_scanpy_engine.py
Bruce Martin 00a68276a2 diffexp performance & UX improvements (#431)
* new diffexp REST API spec

* new diffexp REST API; faster diffexp and dataframe slicing

* first draft of fast diffexp

* convert variance calculation to two-pass method

* lint

* update front-end use of API

* fix typo in spec

* disable content compression

* catch index filter format errors

* clean up of dead code

* resolve PR review comments
2018-11-14 12:51:24 -08:00

259 lines
9.3 KiB
Python

import json
from os import path
import pytest
import time
import unittest
import argparse
import numpy as np
from pandas import Series
from server.app.scanpy_engine.scanpy_engine import ScanpyEngine
class UtilTest(unittest.TestCase):
def setUp(self):
args = {'layout': 'umap', 'diffexp': 'ttest', 'max_category_items': 100,
'obs_names': None, 'var_names': None}
self.data = ScanpyEngine("example-dataset/pbmc3k.h5ad", args)
self.data._create_schema()
def test_init(self):
self.assertEqual(self.data.cell_count, 2638)
self.assertEqual(self.data.gene_count, 1838)
epsilon = 0.000005
self.assertTrue(self.data.data.X[0, 0] - -0.17146951 < epsilon)
def test_mandatory_annotations(self):
self.assertIn("name", self.data.data.obs)
self.assertEqual(list(self.data.data.obs.index), list(range(2638)))
self.assertIn("name", self.data.data.var)
self.assertEqual(list(self.data.data.var.index), list(range(1838)))
@pytest.mark.filterwarnings("ignore:Scanpy data matrix")
def test_data_type(self):
self.data.data.X = self.data.data.X.astype("float64")
with self.assertWarns(UserWarning):
self.data._validate_data_types()
def test_filter_idx(self):
filter_ = {
"filter": {
"var": {
"index": [1, 99, [200, 300]]
},
"obs": {
"index": [1, 99, [1000, 2000]]
}
}
}
data = self.data.filter_dataframe(filter_["filter"])
self.assertEqual(data.shape, (1002, 102))
def test_filter_annotation(self):
filter_ = {
"filter": {
"obs": {
"annotation_value": [
{"name": "louvain", "values": ["NK cells", "CD8 T cells"]},
]
}
}
}
data = self.data.filter_dataframe(filter_["filter"])
self.assertEqual(data.shape, (470, 1838))
filter_ = {
"filter": {
"obs": {
"annotation_value": [
{"name": "n_counts", "min": 3000},
]
}
}
}
data = self.data.filter_dataframe(filter_["filter"])
self.assertEqual(data.shape, (497, 1838))
def test_filter_annotation_no_uns(self):
filter_ = {
"filter": {
"var": {
"annotation_value": [
{"name": "name", "values": ["RER1"]},
]
}
}
}
data = self.data.filter_dataframe(filter_["filter"])
self.assertEqual(data.shape[1], 1)
def test_filter_complex(self):
filter_ = {
"filter": {
"var": {
"index": [1, 99, [200, 300]]
},
"obs": {
"annotation_value": [
{"name": "louvain", "values": ["NK cells", "CD8 T cells"]},
{"name": "n_counts", "min": 3000},
],
"index": [1, 99, [1000, 2000]]
}
}
}
data = self.data.filter_dataframe(filter_["filter"])
self.assertEqual(data.shape, (15, 102))
def test_obs_and_var_names(self):
self.assertEqual(np.sum(self.data.data.var["name"].isna()), 0)
self.assertEqual(np.sum(self.data.data.obs["name"].isna()), 0)
def test_schema(self):
with open(path.join(path.dirname(__file__), "schema.json")) as fh:
schema = json.load(fh)
self.assertEqual(self.data.schema, schema)
def test_schema_produces_error(self):
self.data.data.obs["time"] = Series(list([time.time() for i in range(self.data.cell_count)]),
dtype="datetime64[ns]")
with pytest.raises(TypeError):
self.data._create_schema()
def test_config(self):
self.assertEqual(self.data.features["layout"]["obs"], {'available': True, 'interactiveLimit': 50000})
def test_layout(self):
layout = self.data.layout(None)
self.assertEqual(layout["ndims"], 2)
self.assertEqual(len(layout["coordinates"]), 2638)
self.assertEqual(layout["coordinates"][0][0], 0)
for idx, val in enumerate(layout["coordinates"]):
self.assertLessEqual(val[1], 1)
self.assertLessEqual(val[2], 1)
def test_annotations(self):
annotations = self.data.annotation(None, "obs")
self.assertEqual(annotations["names"], ["name", "n_genes", "percent_mito", "n_counts", "louvain"])
self.assertEqual(len(annotations["data"]), 2638)
annotations = self.data.annotation(None, "var")
self.assertEqual(annotations["names"], ["name", "n_cells"])
self.assertEqual(len(annotations["data"]), 1838)
def test_annotation_fields(self):
annotations = self.data.annotation(None, "obs", ["n_genes", "n_counts"])
self.assertEqual(annotations["names"], ["n_genes", "n_counts"])
self.assertEqual(len(annotations["data"]), 2638)
annotations = self.data.annotation(None, "var", ["name"])
self.assertEqual(annotations["names"], ["name"])
self.assertEqual(len(annotations["data"]), 1838)
def test_filtered_annotation(self):
filter_ = {
"filter": {
"obs": {
"annotation_value": [
{"name": "n_counts", "min": 3000},
]
},
"var": {
"annotation_value": [
{"name": "name", "values": ["ATAD3C", "RER1"]},
]
}
}
}
annotations = self.data.annotation(filter_["filter"], "obs")
self.assertEqual(annotations["names"], ["name", "n_genes", "percent_mito", "n_counts", "louvain"])
self.assertEqual(len(annotations["data"]), 497)
annotations = self.data.annotation(filter_["filter"], "var")
self.assertEqual(annotations["names"], ["name", "n_cells"])
self.assertEqual(len(annotations["data"]), 2)
def test_filtered_layout(self):
filter_ = {
"filter": {
"obs": {
"annotation_value": [
{"name": "n_counts", "min": 3000},
]
}
}
}
layout = self.data.layout(filter_["filter"])
self.assertEqual(len(layout["coordinates"]), 497)
def test_diffexp_topN(self):
f1 = {
"filter": {
"obs": {
"index": [[0, 500]]
}
}
}
f2 = {
"filter": {
"obs": {
"index": [[500, 1000]]
}
}
}
result = self.data.diffexp_topN(f1["filter"], f2["filter"])
self.assertEqual(len(result), 10)
var_idx = [i[0] for i in result]
self.assertEqual(var_idx, sorted(var_idx))
result = self.data.diffexp_topN(f1["filter"], f2["filter"], 20)
self.assertEqual(len(result), 20)
def test_data_frame(self):
data_frame_obs = self.data.data_frame(None, "obs")
self.assertEqual(len(data_frame_obs["var"]), 1838)
self.assertEqual(len(data_frame_obs["obs"]), 2638)
data_frame_var = self.data.data_frame(None, "var")
self.assertEqual(len(data_frame_var["var"]), 1838)
self.assertEqual(len(data_frame_var["obs"]), 2638)
def test_filtered_data_frame(self):
filter_ = {
"filter": {
"obs": {
"annotation_value": [
{"name": "n_counts", "min": 3000},
]
}
}
}
data_frame_obs = self.data.data_frame(filter_["filter"], "obs")
self.assertEqual(len(data_frame_obs["var"]), 1838)
self.assertEqual(len(data_frame_obs["obs"]), 497)
self.assertIsInstance(data_frame_obs["obs"][0], (list, tuple))
self.assertEqual(type(data_frame_obs["var"][0]), int)
data_frame_var = self.data.data_frame(filter_["filter"], "var")
self.assertEqual(len(data_frame_var["var"]), 1838)
self.assertEqual(len(data_frame_var["obs"]), 497)
self.assertIsInstance(data_frame_var["var"][0], (list, tuple))
self.assertEqual(type(data_frame_var["obs"][0]), int)
def test_data_single_gene(self):
for axis in ["obs", "var"]:
filter_ = {
"filter": {
"var": {
"annotation_value": [
{"name": "name", "values": ["RER1"]},
]
}
}
}
data_frame_var = self.data.data_frame(filter_["filter"], axis)
if axis == "obs":
self.assertEqual(type(data_frame_var["var"][0]), int)
self.assertIsInstance(data_frame_var["obs"][0], (list, tuple))
elif axis == "var":
self.assertEqual(type(data_frame_var["obs"][0]), int)
self.assertIsInstance(data_frame_var["var"][0], (list, tuple))
if __name__ == '__main__':
unittest.main()