def test_failed_mapping(self):
genes = {"Gene1", "Gene2"}
mapped_identifiers = util.map_identifiers(genes, return_all=True)
self.assertEqual(0, len(mapped_identifiers))
# test with a single gene
genes = {"Gene1"}
mapped_identifiers = util.map_identifiers(genes, return_all=True)
self.assertEqual(0, len(mapped_identifiers))
def test_ssgsea(self):
json_obj = json.loads(self.test_json)
request = create_analysis_input_object(json_obj)
request.datasets[0].df = util.string_to_array(request.datasets[0].data)
# get the mappings
mappings = util.map_identifiers({"MITF", "CD19", "MS4A1"})
gene_set = self._get_gene_set()
gene_id_colname = request.datasets[0].df.dtype.names[0]
gene_set_mapping = GeneSetMapping.create_mapping(gene_set, identifier_mapping=mappings,
identifiers=request.datasets[0].df[:][
gene_id_colname].tolist())
analyser = ReactomeGSVARAnalyser()
result = analyser.analyse_request(request=request,
gene_set_mappings={request.datasets[0].name: gene_set_mapping},
identifier_mappings=mappings,
gene_set=gene_set)
# test the result
self.assertEqual(1, len(result))
self.assertIsNotNone(result[0].pathways)
self.assertIsNotNone(result[0].fold_changes)
# test the actual result
reader = csv.DictReader(result[0].pathways.split("\n"), delimiter="\t")
self.assertEqual(5, len(reader.fieldnames))
required_fields = ["Pathway", "Name", "Sample.1", "Sample.2", "Sample.3"]
for required_field in required_fields:
self.assertTrue(required_field in reader.fieldnames)
# test the pathways
found_pathways = 0
found_p1 = False
found_p2 = False
for pathway in reader:
found_pathways += 1
if pathway["Pathway"] == "R-HSA-1280218":
found_p1 = True
self.assertEqual("0.0", pathway["Sample.1"].strip())
self.assertEqual("0.02880908", pathway["Sample.2"].strip())
self.assertEqual("0.02880908", pathway["Sample.3"].strip())
if pathway["Pathway"] == "R-HSA-392499":
found_p2 = True
self.assertEqual(-0.5, float(pathway["Sample.1"]))
self.assertEqual(-0.5, float(pathway["Sample.2"]))
self.assertEqual(-0.5, float(pathway["Sample.3"]))
self.assertEqual(143, found_pathways)
self.assertTrue(found_p1)
self.assertTrue(found_p2)
def test_no_design_filtering(self):
test_json = """
{
"analysisId": "test_01",
"datasets": [
{
"data": "\\tSample 1\\tSample2\\tSample 3\\nCD19\\t10\\t20\\t2\\nMS4A1\\t10\\t20\\t2\\n\
MITF\\t10\\t0\\t0\\n",
"design": {
"analysisGroup": [
"Treatment",
"Control",
"Treatment"
],
"comparison": {
"group1": "Control",
"group2": "Treatment"
},
"samples": [
"Sample 1",
"Sample 2",
"Sample 3"
],
"patient": [
"Patient 1",
"Patient 2",
"Patient 3"
]
},
"name": "First experiment",
"type": "rnaseq_counts"
}
],
"methodName": "ssgsea"
}
"""
worker = reactome_analysis_worker.ReactomeAnalysisWorker()
json_obj = json.loads(test_json)
request_obj = create_analysis_input_object(json_obj)
worker._convert_datasets(request_obj)
mappings = util.map_identifiers({"MITF", "CD19", "MS4A1"})
self.assertEqual(3, len(request_obj.datasets[0].df))
filtered_df = reactome_analysis_worker.ReactomeAnalysisWorker._filter_dataset(request_obj.datasets[0].df,
mappings,
None,
0.5)
self.assertIsNotNone(filtered_df)
self.assertEqual(2, len(filtered_df))
def _map_identifiers(self, request: AnalysisInput,
reactome_server: str) -> dict:
"""
Map all submitted identifiers using Reactom's mapping service.
:param request: The analysis request
:param reactome_server: The reactome server to use
:returns: A dict with the original identifier as key and the mappings as value (list)
"""
# get all identifiers
all_identifiers = ReactomeAnalysisWorker._extract_identifiers(
request.datasets)
# make sure more than one gene was submitted
if len(all_identifiers) <= 1:
LOGGER.debug(
"Analysis request {} contains an insufficient number of genes ({})"
.format(request.analysis_id, str(len(all_identifiers))))
raise Exception("Analysis requires >1 genes.")
# get the identifier mappings
self._set_status(request.analysis_id,
status="running",
description="Mapping identifiers...",
completed=0.1)
try:
identifier_mappings = util.map_identifiers(
all_identifiers,
return_all=True,
reactome_server=reactome_server)
except util.MappingException as e:
LOGGER.debug("Identifier mapping failed", exc_info=1)
raise Exception("Invalid gene/protein identifiers submitted")
except Exception as e:
LOGGER.error("Failed to connect to mapping service: " + str(e))
LOGGER.debug("Mapping failed", exc_info=1)
raise Exception(
"Failed to contact identifier mapping service. Please try again later."
)
LOGGER.debug("Mapped {} of {} submitted identifiers".format(
str(len(identifier_mappings)), str(len(all_identifiers))))
# make sure that identifiers were mapped
if len(identifier_mappings) < 1:
raise Exception("Failed to map any submitted identifiers")
return identifier_mappings
def testMapping(self):
# use all genes from one pathway
genes = set()
with open(
os.path.join(os.path.dirname(__file__), "testfiles",
"R-HSA-1980143.uniprot.txt")) as reader:
for line in reader:
genes.add(line.strip())
mapped_identifiers = util.map_identifiers(genes, return_all=True)
self.assertEqual(len(genes), len(mapped_identifiers))
# all identifiers should only map to a single one
for mapped_identifier in mapped_identifiers.values():
# There are multiple mappings when referring to isoforms (one case)
self.assertTrue(len(mapped_identifier) < 3,
msg="Multiple mappings for {}".format(
",".join(mapped_identifier)))
def test_analysis(self):
json_obj = json.loads(self.test_json)
request = create_analysis_input_object(json_obj)
request.datasets[0].df = util.string_to_array(request.datasets[0].data)
# get the mappings
mappings = util.map_identifiers({
"MITF", "CD19", "MS4A1", "SDC1", "CD38", "EGFR", "IL10", "IL6",
"GRB2", "GAB1", "SHC1"
})
# filter the dataset
request.datasets[0].df = ReactomeAnalysisWorker._filter_dataset(
request.datasets[0].df, mappings, request.datasets[0].design, 1)
gene_set = self._get_gene_set()
gene_id_colname = request.datasets[0].df.dtype.names[0]
gene_set_mapping = GeneSetMapping.create_mapping(
gene_set,
identifier_mapping=mappings,
identifiers=request.datasets[0].df[:][gene_id_colname].tolist())
analyser = ReactomeRAnalyser()
result = analyser.analyse_request(
request=request,
gene_set_mappings={request.datasets[0].name: gene_set_mapping},
identifier_mappings=mappings,
gene_set=gene_set)
# test the result
self.assertEqual(1, len(result))
self.assertIsNotNone(result[0].pathways)
result_lines = result[0].pathways.split("\n")
self.assertEqual(233, len(result_lines))
reader = csv.DictReader(result_lines, delimiter="\t")
required_fields = ("Pathway", "Name", "Direction", "FDR", "PValue",
"NGenes")
for field in required_fields:
self.assertTrue(field in reader.fieldnames,
"Missing field " + field)
def test_pathway_string(self):
json_obj = json.loads(self.test_json)
# add the parameters
json_obj["parameters"] = [{"name": "pathways", "value": "R-HSA-1280218,R-HSA-392499"},
{"name": "create_reactome_visualization", "value": "False"}]
request = create_analysis_input_object(json_obj)
request.datasets[0].df = util.string_to_array(request.datasets[0].data)
# get the mappings
mappings = util.map_identifiers({"MITF", "CD19", "MS4A1"})
gene_set = self._get_gene_set()
gene_id_colname = request.datasets[0].df.dtype.names[0]
gene_set_mapping = GeneSetMapping.create_mapping(gene_set, identifier_mapping=mappings,
identifiers=request.datasets[0].df[:][
gene_id_colname].tolist())
analyser = ReactomeGSVARAnalyser()
result = analyser.analyse_request(request=request,
gene_set_mappings={request.datasets[0].name: gene_set_mapping},
identifier_mappings=mappings,
gene_set=gene_set)
# test the result
self.assertEqual(1, len(result))
self.assertIsNotNone(result[0].pathways)
self.assertIsNotNone(result[0].fold_changes)
# test the actual result
reader = csv.DictReader(result[0].pathways.split("\n"), delimiter="\t")
self.assertEqual(5, len(reader.fieldnames))
# there should only be two entries
n_entries = 0
for line in reader:
n_entries += 1
self.assertEqual(2, n_entries)
def test_heartbeat(self):
json_obj = json.loads(self.test_json)
json_obj["parameters"].append({
"name": "max_missing_values",
"value": "1"
})
# remove the patient since this coefficient cannot be estimated
json_obj["datasets"][0]["design"].pop("patient")
request = create_analysis_input_object(json_obj)
request.datasets[0].df = util.string_to_array(request.datasets[0].data)
# get the mappings
mappings = util.map_identifiers({"MITF", "CD19", "MS4A1"})
# filter the dataset
request.datasets[0].df = ReactomeAnalysisWorker._filter_dataset(
request.datasets[0].df, mappings, request.datasets[0].design, 1)
gene_set = self._get_gene_set()
gene_id_colname = request.datasets[0].df.dtype.names[0]
gene_set_mapping = GeneSetMapping.create_mapping(
gene_set,
identifier_mapping=mappings,
identifiers=request.datasets[0].df[:][gene_id_colname].tolist())
analyser = ReactomeRAnalyser()
analyser.set_heartbeat_callback(self.update_heartbeat)
start_time = int(time.time()) - 1
result = analyser.analyse_request(
request=request,
gene_set_mappings={request.datasets[0].name: gene_set_mapping},
identifier_mappings=mappings,
gene_set=gene_set)
# make sure the heartbeat was updated
self.assertGreater(self.last_heartbeat, start_time)
def test_parameter_passing(self):
json_obj = json.loads(self.test_json)
json_obj["parameters"].append({
"name": "max_missing_values",
"value": "1"
})
# remove the patient since this coefficient cannot be estimated
json_obj["datasets"][0]["design"].pop("patient")
request = create_analysis_input_object(json_obj)
request.datasets[0].df = util.string_to_array(request.datasets[0].data)
self.assertEqual(3, len(request.parameters))
# default values inserted automatically
self.assertEqual(6, len(request.parameter_dict))
self.assertTrue("max_missing_values" in request.parameter_dict)
# get the mappings
mappings = util.map_identifiers({"MITF", "CD19", "MS4A1"})
# filter the dataset
request.datasets[0].df = ReactomeAnalysisWorker._filter_dataset(
request.datasets[0].df, mappings, request.datasets[0].design, 1)
gene_set = self._get_gene_set()
gene_id_colname = request.datasets[0].df.dtype.names[0]
gene_set_mapping = GeneSetMapping.create_mapping(
gene_set,
identifier_mapping=mappings,
identifiers=request.datasets[0].df[:][gene_id_colname].tolist())
analyser = ReactomeRAnalyser()
result = analyser.analyse_request(
request=request,
gene_set_mappings={request.datasets[0].name: gene_set_mapping},
identifier_mappings=mappings,
gene_set=gene_set)
# test the result
self.assertEqual(1, len(result))
self.assertIsNotNone(result[0].pathways)
result_lines = result[0].pathways.split("\n")
self.assertEqual(24, len(result_lines))
reader = csv.DictReader(result_lines, delimiter="\t")
required_fields = ("Pathway", "Name", "Direction", "FDR", "PValue",
"NGenes")
for field in required_fields:
self.assertTrue(field in reader.fieldnames,
"Missing field " + field)
pathways_up = ("R-HSA-392499", "R-HSA-597592", "R-HSA-2990846",
"R-HSA-3108232", "R-HSA-3232118")
for row in reader:
if reader.line_num == 2:
self.assertTrue(row["Pathway"] == "R-HSA-392499")
if reader.line_num == 6:
self.assertTrue(row["Pathway"] == "R-HSA-3232118")
if reader.line_num == 15:
self.assertTrue(row["Pathway"] == "R-HSA-162582")
if reader.line_num == 24:
self.assertTrue(row["Pathway"] == "R-HSA-6811558")
if row["Pathway"] in pathways_up:
self.assertTrue(row["Direction"] == "Down")
self.assertTrue(
float(row["av_foldchange"]) < 0,
"Incorrect regulation for " + row["Pathway"])
else:
self.assertTrue(row["Direction"] == "Up")
self.assertTrue(float(row["av_foldchange"]) > 0)
# test the FC result
self.assertIsNotNone(result[0].fold_changes)
fc_lines = result[0].fold_changes.split("\n")
self.assertEqual(4, len(fc_lines))
fc_reader = csv.DictReader(fc_lines, delimiter="\t")
fc_fields = ("logFC", "Identifier")
for field in fc_fields:
self.assertTrue(field in fc_reader.fieldnames,
"Missing FC field " + field)
mitf_found = False
for row in fc_reader:
if row["Identifier"] == "MITF":
self.assertAlmostEqual(4.53, float(row["logFC"]), delta=0.01)
mitf_found = True
self.assertTrue(mitf_found, "Failed to find MITF in FC data")
def test_no_design(self):
test_json = """
{
"analysisId": "test_01",
"datasets": [
{
"data": "\\tSample 1\\tSample2\\tSample 3\\nCD19\\t10\\t20\\t2\\nMS4A1\\t10\\t20\\t2\\n\
MITF\\t10\\t0\\t0\\n",
"name": "First experiment",
"type": "rnaseq_counts"
}
],
"methodName": "ssgsea"
}
"""
json_obj = json.loads(test_json)
request = create_analysis_input_object(json_obj)
request.datasets[0].df = util.string_to_array(request.datasets[0].data)
self.assertIsNotNone(request)
# get the mappings
mappings = util.map_identifiers({"MITF", "CD19", "MS4A1"})
gene_set = self._get_gene_set()
gene_id_colname = request.datasets[0].df.dtype.names[0]
gene_set_mapping = GeneSetMapping.create_mapping(gene_set, identifier_mapping=mappings,
identifiers=request.datasets[0].df[:][
gene_id_colname].tolist())
analyser = ReactomeGSVARAnalyser()
result = analyser.analyse_request(request=request,
gene_set_mappings={request.datasets[0].name: gene_set_mapping},
identifier_mappings=mappings,
gene_set=gene_set)
# test the result
self.assertEqual(1, len(result))
self.assertIsNotNone(result[0].pathways)
self.assertIsNotNone(result[0].fold_changes)
# test the actual result
reader = csv.DictReader(result[0].pathways.split("\n"), delimiter="\t")
self.assertEqual(5, len(reader.fieldnames))
required_fields = ["Pathway", "Sample_1", "Sample2", "Sample_3"]
for required_field in required_fields:
self.assertTrue(required_field in reader.fieldnames, "Missing required field " + required_field)
# test the pathways
found_pathways = 0
for pathway in reader:
found_pathways += 1
if pathway["Pathway"] == "R-HSA-1280218":
self.assertEqual("0.0", pathway["Sample_1"].strip())
self.assertEqual("0.02880908", pathway["Sample2"].strip())
self.assertEqual("0.02880908", pathway["Sample_3"].strip())
if pathway["Pathway"] == "R-HSA-392499":
self.assertEqual(-0.5, float(pathway["Sample_1"]))
self.assertEqual(-0.5, float(pathway["Sample2"]))
self.assertEqual(-0.5, float(pathway["Sample_3"]))
self.assertEqual(143, found_pathways)
def test_interactor_mapping(self):
mapped_identifier = util.map_identifiers(["MS4A1"], return_all=True)
self.assertEqual(1, len(mapped_identifier))
self.assertEqual(1, len(mapped_identifier["MS4A1"]))
self.assertEqual("P11836", mapped_identifier["MS4A1"][0])
