def test_save_snps_vcf_false_positive_build(self):
with tempfile.TemporaryDirectory() as tmpdir1:
snps = SNPs("tests/input/testvcf.vcf", output_dir=tmpdir1)
r = Resources()
r._reference_sequences["GRCh37"] = {}
output = os.path.join(tmpdir1, "vcf_GRCh37.vcf")
with tempfile.TemporaryDirectory() as tmpdir2:
dest = os.path.join(tmpdir2, "generic.fa.gz")
gzip_file("tests/input/generic.fa", dest)
seq = ReferenceSequence(ID="1", path=dest)
r._reference_sequences["GRCh37"]["1"] = seq
self.assertEqual(snps.save(vcf=True), output)
s = ""
with open(output, "r") as f:
for line in f.readlines():
if "snps v" in line:
s += '##source="vcf; snps v1.2.3.post85.dev0+gb386302; https://pypi.org/project/snps/"\n'
else:
s += line
with open(output, "w") as f:
f.write(s)
self.run_parsing_tests_vcf(output)
def test_save_snps_vcf_phased(self):
# read phased data
s = SNPs("tests/input/testvcf_phased.vcf")
# setup resource to use test FASTA reference sequence
r = Resources()
r._reference_sequences["GRCh37"] = {}
with open("tests/input/generic.fa", "rb") as f_in:
with atomic_write("tests/input/generic.fa.gz",
mode="wb",
overwrite=True) as f_out:
with gzip.open(f_out, "wb") as f_gzip:
shutil.copyfileobj(f_in, f_gzip)
seq = ReferenceSequence(ID="1", path="tests/input/generic.fa.gz")
r._reference_sequences["GRCh37"]["1"] = seq
# save phased data to VCF
assert os.path.relpath(
s.save_snps(vcf=True)) == "output/vcf_GRCh37.vcf"
# read saved VCF
s = SNPs("output/vcf_GRCh37.vcf")
assert s.phased
pd.testing.assert_frame_equal(s.snps, self.generic_snps_vcf())
def test_save_snps_vcf_discrepant_pos(self):
s = SNPs("tests/input/testvcf.vcf")
r = Resources()
r._reference_sequences["GRCh37"] = {}
with tempfile.TemporaryDirectory() as tmpdir:
dest = os.path.join(tmpdir, "generic.fa.gz")
gzip_file("tests/input/generic.fa", dest)
seq = ReferenceSequence(ID="1", path=dest)
r._reference_sequences["GRCh37"]["1"] = seq
# create discrepant SNPs by setting positions outside reference sequence
s._snps.loc["rs1", "pos"] = 0
s._snps.loc["rs17", "pos"] = 118
self.assertEqual(os.path.relpath(s.save(vcf=True)),
f"output{os.sep}vcf_GRCh37.vcf")
pd.testing.assert_frame_equal(
s.discrepant_vcf_position,
self.create_snp_df(
rsid=["rs1", "rs17"],
chrom=["1", "1"],
pos=[0, 118],
genotype=["AA", np.nan],
),
check_exact=True,
)
expected = self.generic_snps_vcf().drop(["rs1", "rs17"])
self.run_parsing_tests_vcf("output/vcf_GRCh37.vcf", snps_df=expected)
def _setup_gsa_test(resources_dir):
# reset resource if already loaded
r = Resources()
r._resources_dir = resources_dir
r._gsa_resources = {}
gzip_file(
"tests/resources/gsa_rsid_map.txt",
os.path.join(resources_dir, "gsa_rsid_map.txt.gz"),
)
gzip_file(
"tests/resources/gsa_chrpos_map.txt",
os.path.join(resources_dir, "gsa_chrpos_map.txt.gz"),
)
def run(self, result=None):
# set resources directory based on if downloads are being performed
# https://stackoverflow.com/a/11180583
self.resource = Resources()
self._reset_resource()
if self.downloads_enabled:
self.resource._resources_dir = "resources"
super().run(result)
else:
# use a temporary directory for test resource data
with tempfile.TemporaryDirectory() as tmpdir:
self.resource._resources_dir = tmpdir
super().run(result)
self.resource._resources_dir = "resources"
def _setup_gsa_test(resources_dir):
# reset resource if already loaded
r = Resources()
r._resources_dir = resources_dir
r._init_resource_attributes()
gzip_file(
"tests/resources/gsa_rsid_map.txt",
os.path.join(resources_dir, "gsa_rsid_map.txt.gz"),
)
gzip_file(
"tests/resources/gsa_chrpos_map.txt",
os.path.join(resources_dir, "gsa_chrpos_map.txt.gz"),
)
gzip_file(
"tests/resources/dbsnp_151_37_reverse.txt",
os.path.join(resources_dir, "dbsnp_151_37_reverse.txt.gz"),
)
def test_save_snps_vcf(self):
s = SNPs("tests/input/testvcf.vcf")
r = Resources()
r._reference_sequences["GRCh37"] = {}
with tempfile.TemporaryDirectory() as tmpdir:
dest = os.path.join(tmpdir, "generic.fa.gz")
gzip_file("tests/input/generic.fa", dest)
seq = ReferenceSequence(ID="1", path=dest)
r._reference_sequences["GRCh37"]["1"] = seq
self.assertEqual(os.path.relpath(s.save(vcf=True)),
f"output{os.sep}vcf_GRCh37.vcf")
self.run_parsing_tests_vcf("output/vcf_GRCh37.vcf")
def test_save_snps_vcf(self):
with tempfile.TemporaryDirectory() as tmpdir1:
s = SNPs("tests/input/testvcf.vcf", output_dir=tmpdir1)
r = Resources()
r._reference_sequences["GRCh37"] = {}
output = os.path.join(tmpdir1, "vcf_GRCh37.vcf")
with tempfile.TemporaryDirectory() as tmpdir2:
dest = os.path.join(tmpdir2, "generic.fa.gz")
gzip_file("tests/input/generic.fa", dest)
seq = ReferenceSequence(ID="1", path=dest)
r._reference_sequences["GRCh37"]["1"] = seq
self.assertEqual(s.save(vcf=True), output)
self.run_parsing_tests_vcf(output)
def test_load_opensnp_datadump_file(self):
# temporarily set resources dir to tests
r = Resources()
r._resources_dir = "tests/resources"
# write test openSNP datadump zip
with atomic_write("tests/resources/opensnp_datadump.current.zip",
mode="wb",
overwrite=True) as f:
with zipfile.ZipFile(f, "w") as f_zip:
f_zip.write("tests/input/generic.csv", arcname="generic1.csv")
f_zip.write("tests/input/generic.csv", arcname="generic2.csv")
snps1 = SNPs(r.load_opensnp_datadump_file("generic1.csv"))
snps2 = SNPs(r.load_opensnp_datadump_file("generic2.csv"))
pd.testing.assert_frame_equal(snps1.snps, self.generic_snps())
pd.testing.assert_frame_equal(snps2.snps, self.generic_snps())
r._resources_dir = "resources"
def test_save_snps_vcf_phased(self):
# read phased data
s = SNPs("tests/input/testvcf_phased.vcf")
# setup resource to use test FASTA reference sequence
r = Resources()
r._reference_sequences["GRCh37"] = {}
with tempfile.TemporaryDirectory() as tmpdir:
dest = os.path.join(tmpdir, "generic.fa.gz")
gzip_file("tests/input/generic.fa", dest)
seq = ReferenceSequence(ID="1", path=dest)
r._reference_sequences["GRCh37"]["1"] = seq
# save phased data to VCF
self.assertEqual(os.path.relpath(s.save(vcf=True)),
f"output{os.sep}vcf_GRCh37.vcf")
# read saved VCF
self.run_parsing_tests_vcf("output/vcf_GRCh37.vcf", phased=True)
def test_save_snps_vcf_discrepant_pos(self):
with tempfile.TemporaryDirectory() as tmpdir1:
s = SNPs("tests/input/testvcf.vcf", output_dir=tmpdir1)
r = Resources()
r._reference_sequences["GRCh37"] = {}
output = os.path.join(tmpdir1, "vcf_GRCh37.vcf")
with tempfile.TemporaryDirectory() as tmpdir2:
dest = os.path.join(tmpdir2, "generic.fa.gz")
gzip_file("tests/input/generic.fa", dest)
seq = ReferenceSequence(ID="1", path=dest)
r._reference_sequences["GRCh37"]["1"] = seq
# create discrepant SNPs by setting positions outside reference sequence
s._snps.loc["rs1", "pos"] = 0
s._snps.loc["rs17", "pos"] = 118
# esnure this is the right type after manual tweaking
s._snps = s._snps.astype({"pos": np.uint32})
self.assertEqual(s.save(vcf=True), output)
pd.testing.assert_frame_equal(
s.discrepant_vcf_position,
self.create_snp_df(
rsid=["rs1", "rs17"],
chrom=["1", "1"],
pos=[0, 118],
genotype=["AA", np.nan],
),
check_exact=True,
)
expected = self.generic_snps_vcf().drop(["rs1", "rs17"])
self.run_parsing_tests_vcf(output, snps_df=expected)
class TestResources(BaseSNPsTestCase):
def _reset_resource(self):
self.resource._reference_sequences = {}
self.resource._gsa_resources = {}
self.resource._opensnp_datadump_filenames = []
def run(self, result=None):
# set resources directory based on if downloads are being performed
# https://stackoverflow.com/a/11180583
self.resource = Resources()
self._reset_resource()
if self.downloads_enabled:
self.resource._resources_dir = "resources"
super().run(result)
else:
# use a temporary directory for test resource data
with tempfile.TemporaryDirectory() as tmpdir:
self.resource._resources_dir = tmpdir
super().run(result)
self.resource._resources_dir = "resources"
def test_get_assembly_mapping_data(self):
def f():
effects = [{"mappings": []} for _ in range(1, 26)]
for k, v in self.NCBI36_GRCh37().items():
effects[int(k) - 1] = v
mock = Mock(side_effect=effects)
with patch("snps.ensembl.EnsemblRestClient.perform_rest_action",
mock):
return self.resource.get_assembly_mapping_data(
"NCBI36", "GRCh37")
assembly_mapping_data = (self.resource.get_assembly_mapping_data(
"NCBI36", "GRCh37") if self.downloads_enabled else f())
self.assertEqual(len(assembly_mapping_data), 25)
def test_get_gsa_resources(self):
def f():
# mock download of test data for each resource
self._generate_test_gsa_resources()
# load test resources saved to `tmpdir`
return self.resource.get_gsa_resources()
gsa_resources = (self.resource.get_gsa_resources()
if self.downloads_enabled else f())
self.assertEqual(len(gsa_resources["rsid_map"]), 618539)
self.assertEqual(len(gsa_resources["chrpos_map"]), 665607)
# cleanup these test resources so other tests can use the file resources
if os.path.exists("resources"):
shutil.rmtree("resources")
Singleton._instances = {}
def _generate_test_gsa_resources(self):
# Name RsID"
s = ""
for i in range(1, 618541):
s += f"rs{i}\trs{i}\n"
mock = mock_open(read_data=gzip.compress(s.encode()))
with patch("urllib.request.urlopen", mock):
self.resource.get_gsa_rsid()
# Name Chr MapInfo deCODE(cM)
s = ""
for i in range(1, 665609):
s += f"rs{i}\t1\t{i}\t0.0000\n"
mock = mock_open(read_data=gzip.compress(s.encode()))
with patch("urllib.request.urlopen", mock):
self.resource.get_gsa_chrpos()
def test_get_all_resources(self):
def f():
# mock download of test data for each resource
self._generate_test_gsa_resources()
# generate test data for permutations of remapping data
effects = [{"mappings": []} for _ in range(1, 26)]
for k, v in self.NCBI36_GRCh37().items():
effects[int(k) - 1] = v
mock = Mock(side_effect=effects * 6)
with patch("snps.ensembl.EnsemblRestClient.perform_rest_action",
mock):
return self.resource.get_all_resources()
resources = self.resource.get_all_resources(
) if self.downloads_enabled else f()
for k, v in resources.items():
self.assertGreater(len(v), 0)
# cleanup these test resources so other tests can use the file resources
if os.path.exists("resources"):
shutil.rmtree("resources")
Singleton._instances = {}
def test_download_example_datasets(self):
def f():
with patch("urllib.request.urlopen", mock_open(read_data=b"")):
return self.resource.download_example_datasets()
paths = (self.resource.download_example_datasets()
if self.downloads_enabled else f())
for path in paths:
if not path or not os.path.exists(path):
warnings.warn("Example dataset(s) not currently available")
return
def test_get_paths_reference_sequences_invalid_assembly(self):
assembly, chroms, urls, paths = self.resource._get_paths_reference_sequences(
assembly="36")
self.assertFalse(assembly)
self.assertFalse(chroms)
self.assertFalse(urls)
self.assertFalse(paths)
def run_reference_sequences_test(self, f, assembly="GRCh37"):
if self.downloads_enabled:
f()
else:
s = f">MT dna:chromosome chromosome:{assembly}:MT:1:16569:1 REF\n"
for i in range(276):
s += "A" * 60
s += "\n"
s += "A" * 9
s += "\n"
with patch("urllib.request.urlopen",
mock_open(read_data=gzip.compress(s.encode()))):
f()
def run_create_reference_sequences_test(self, assembly_expect, url_expect):
def f():
(
assembly,
chroms,
urls,
paths,
) = self.resource._get_paths_reference_sequences(
assembly=assembly_expect, chroms=["MT"])
seqs = self.resource._create_reference_sequences(
assembly, chroms, urls, paths)
self.assertEqual(len(seqs), 1)
self.assertEqual(
seqs["MT"].__repr__(),
f"ReferenceSequence(assembly='{assembly_expect}', ID='MT')",
)
self.assertEqual(seqs["MT"].ID, "MT")
self.assertEqual(seqs["MT"].chrom, "MT")
self.assertEqual(seqs["MT"].url, f"{url_expect}")
self.assertEqual(
seqs["MT"].path,
os.path.relpath(
f'{os.path.join(self.resource._resources_dir,"fasta", assembly_expect,os.path.basename(url_expect))}'
),
)
self.assertTrue(os.path.exists(seqs["MT"].path))
self.assertEqual(seqs["MT"].assembly, assembly_expect)
self.assertEqual(seqs["MT"].build, f"B{assembly_expect[-2:]}")
self.assertEqual(seqs["MT"].species, "H**o sapiens")
self.assertEqual(seqs["MT"].taxonomy, "x")
self.run_reference_sequences_test(f, assembly_expect)
def test_create_reference_sequences_NCBI36(self):
self.run_create_reference_sequences_test(
"NCBI36",
"ftp://ftp.ensembl.org/pub/release-54/fasta/homo_sapiens/dna/Homo_sapiens.NCBI36.54.dna.chromosome.MT.fa.gz",
)
def test_create_reference_sequences_GRCh37(self):
self.run_create_reference_sequences_test(
"GRCh37",
"ftp://ftp.ensembl.org/pub/grch37/release-96/fasta/homo_sapiens/dna/Homo_sapiens.GRCh37.dna.chromosome.MT.fa.gz",
)
def test_create_reference_sequences_GRCh38(self):
self.run_create_reference_sequences_test(
"GRCh38",
"ftp://ftp.ensembl.org/pub/release-96/fasta/homo_sapiens/dna/Homo_sapiens.GRCh38.dna.chromosome.MT.fa.gz",
)
def test_create_reference_sequences_invalid_path(self):
def f():
(
assembly,
chroms,
urls,
paths,
) = self.resource._get_paths_reference_sequences(assembly="GRCh37",
chroms=["MT"])
paths[0] = ""
seqs = self.resource._create_reference_sequences(
assembly, chroms, urls, paths)
self.assertEqual(len(seqs), 0)
self.run_reference_sequences_test(f)
def test_download_file_socket_timeout(self):
mock = Mock(side_effect=socket.timeout)
with patch("urllib.request.urlopen", mock):
path = self.resource._download_file("http://url", "test.txt")
self.assertEqual(path, "")
def test_download_file_URL_error(self):
mock = Mock(side_effect=urllib.error.URLError("test error"))
with patch("urllib.request.urlopen", mock):
path1 = self.resource._download_file("http://url", "test.txt")
path2 = self.resource._download_file("ftp://url", "test.txt")
self.assertEqual(path1, "")
self.assertEqual(path2, "")
def test_get_reference_sequences(self):
def f():
seqs = self.resource.get_reference_sequences(chroms=["MT"])
self.assertEqual(len(seqs), 1)
self.assertEqual(seqs["MT"].__repr__(),
"ReferenceSequence(assembly='GRCh37', ID='MT')")
self.assertEqual(seqs["MT"].ID, "MT")
self.assertEqual(seqs["MT"].chrom, "MT")
self.assertEqual(
seqs["MT"].url,
"ftp://ftp.ensembl.org/pub/grch37/release-96/fasta/homo_sapiens/dna/Homo_sapiens.GRCh37.dna.chromosome.MT.fa.gz",
)
self.assertEqual(
seqs["MT"].path,
os.path.relpath(
f'{os.path.join(self.resource._resources_dir,"fasta", "GRCh37","Homo_sapiens.GRCh37.dna.chromosome.MT.fa.gz")}'
),
)
self.assertTrue(os.path.exists(seqs["MT"].path))
self.assertEqual(seqs["MT"].assembly, "GRCh37")
self.assertEqual(seqs["MT"].build, "B37")
self.assertEqual(seqs["MT"].species, "H**o sapiens")
self.assertEqual(seqs["MT"].taxonomy, "x")
self.run_reference_sequences_test(f)
def test_get_all_reference_sequences(self):
def f():
seqs = self.resource.get_all_reference_sequences(chroms=["MT"])
self.assertEqual(len(seqs), 3)
self.assertEqual(len(seqs["NCBI36"]), 1)
self.assertEqual(
seqs["NCBI36"]["MT"].path,
os.path.relpath(
os.path.join(
self.resource._resources_dir,
"fasta",
"NCBI36",
"Homo_sapiens.NCBI36.54.dna.chromosome.MT.fa.gz",
)),
)
self.assertEqual(len(seqs["GRCh37"]), 1)
self.assertEqual(
seqs["GRCh37"]["MT"].path,
os.path.relpath(
os.path.join(
self.resource._resources_dir,
"fasta",
"GRCh37",
"Homo_sapiens.GRCh37.dna.chromosome.MT.fa.gz",
)),
)
self.assertEqual(len(seqs["GRCh38"]), 1)
self.assertEqual(
seqs["GRCh38"]["MT"].path,
os.path.relpath(
os.path.join(
self.resource._resources_dir,
"fasta",
"GRCh38",
"Homo_sapiens.GRCh38.dna.chromosome.MT.fa.gz",
)),
)
self.run_reference_sequences_test(f)
def test_get_reference_sequences_invalid_assembly(self):
seqs = self.resource.get_reference_sequences(assembly="36")
self.assertEqual(len(seqs), 0)
def test_get_reference_sequences_chrom_not_available(self):
def f():
self.resource.get_reference_sequences(chroms=["MT"])
del self.resource._reference_sequences["GRCh37"]["MT"]
seqs = self.resource.get_reference_sequences(chroms=["MT"])
self.assertEqual(len(seqs), 1)
self.assertEqual(seqs["MT"].__repr__(),
"ReferenceSequence(assembly='GRCh37', ID='MT')")
self.assertEqual(seqs["MT"].ID, "MT")
self.assertEqual(seqs["MT"].chrom, "MT")
self.assertEqual(
seqs["MT"].url,
"ftp://ftp.ensembl.org/pub/grch37/release-96/fasta/homo_sapiens/dna/Homo_sapiens.GRCh37.dna.chromosome.MT.fa.gz",
)
self.assertEqual(
seqs["MT"].path,
os.path.relpath(
os.path.join(
self.resource._resources_dir,
"fasta",
"GRCh37",
"Homo_sapiens.GRCh37.dna.chromosome.MT.fa.gz",
)),
)
self.assertTrue(os.path.exists(seqs["MT"].path))
self.assertEqual(seqs["MT"].assembly, "GRCh37")
self.assertEqual(seqs["MT"].build, "B37")
self.assertEqual(seqs["MT"].species, "H**o sapiens")
self.assertEqual(seqs["MT"].taxonomy, "x")
self.run_reference_sequences_test(f)
def run_reference_sequence_load_sequence_test(self, hash):
def f():
seqs = self.resource.get_reference_sequences(chroms=["MT"])
self.assertEqual(len(seqs["MT"].sequence), 16569)
self.assertEqual(seqs["MT"].md5, hash)
self.assertEqual(seqs["MT"].start, 1)
self.assertEqual(seqs["MT"].end, 16569)
self.assertEqual(seqs["MT"].length, 16569)
seqs["MT"].clear()
self.assertEqual(seqs["MT"]._sequence.size, 0)
self.assertEqual(seqs["MT"]._md5, "")
self.assertEqual(seqs["MT"]._start, 0)
self.assertEqual(seqs["MT"]._end, 0)
self.assertEqual(seqs["MT"]._length, 0)
self.assertEqual(len(seqs["MT"].sequence), 16569)
self.assertEqual(seqs["MT"].md5, hash)
self.assertEqual(seqs["MT"].start, 1)
self.assertEqual(seqs["MT"].end, 16569)
self.assertEqual(seqs["MT"].length, 16569)
self.run_reference_sequences_test(f)
def test_reference_sequence_load_sequence(self):
if self.downloads_enabled:
self.run_reference_sequence_load_sequence_test(
"c68f52674c9fb33aef52dcf399755519")
else:
self.run_reference_sequence_load_sequence_test(
"d432324413a21aa9247321c56c300ad3")
def test_reference_sequence_generic_load_sequence(self):
with tempfile.TemporaryDirectory() as tmpdir:
dest = os.path.join(tmpdir, "generic.fa.gz")
gzip_file("tests/input/generic.fa", dest)
seq = ReferenceSequence(ID="1", path=dest)
self.assertEqual(seq.ID, "1")
self.assertEqual(seq.chrom, "1")
self.assertEqual(seq.path, dest)
np.testing.assert_array_equal(
seq.sequence,
np.array(
bytearray(
"NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNAGGCCGGACNNNNNNNN",
encoding="utf-8",
errors="strict",
),
dtype=np.uint8,
),
)
self.assertListEqual(list("AGGCCGGAC"),
list(map(chr, seq.sequence[100:109])))
self.assertEqual(seq.md5, "6ac6176535ad0e38aba2d05d786c39b6")
self.assertEqual(seq.start, 1)
self.assertEqual(seq.end, 117)
self.assertEqual(seq.length, 117)
def test_get_opensnp_datadump_filenames(self):
with tempfile.TemporaryDirectory() as tmpdir:
# temporarily set resources dir to tests
self.resource._resources_dir = tmpdir
# write test openSNP datadump zip
with atomic_write(
os.path.join(tmpdir, "opensnp_datadump.current.zip"),
mode="wb",
overwrite=True,
) as f:
with zipfile.ZipFile(f, "w") as f_zip:
f_zip.write("tests/input/generic.csv",
arcname="generic1.csv")
f_zip.write("tests/input/generic.csv",
arcname="generic2.csv")
filenames = self.resource.get_opensnp_datadump_filenames()
self.assertListEqual(filenames, ["generic1.csv", "generic2.csv"])
self.resource._resources_dir = "resources"
def test_load_opensnp_datadump_file(self):
with tempfile.TemporaryDirectory() as tmpdir:
# temporarily set resources dir to tests
self.resource._resources_dir = tmpdir
# write test openSNP datadump zip
with atomic_write(
os.path.join(tmpdir, "opensnp_datadump.current.zip"),
mode="wb",
overwrite=True,
) as f:
with zipfile.ZipFile(f, "w") as f_zip:
f_zip.write("tests/input/generic.csv",
arcname="generic1.csv")
f_zip.write("tests/input/generic.csv",
arcname="generic2.csv")
snps1 = SNPs(
self.resource.load_opensnp_datadump_file("generic1.csv"))
snps2 = SNPs(
self.resource.load_opensnp_datadump_file("generic2.csv"))
pd.testing.assert_frame_equal(snps1.snps,
self.generic_snps(),
check_exact=True)
pd.testing.assert_frame_equal(snps2.snps,
self.generic_snps(),
check_exact=True)
self.resource._resources_dir = "resources"
def _teardown_gsa_test():
r = Resources()
r._resources_dir = "resources"
r._gsa_resources = {}
def _teardown_gsa_test():
r = Resources()
r._resources_dir = "resources"
r._init_resource_attributes()
class TestResources(BaseSNPsTestCase):
def setUp(self):
self.resource = Resources(resources_dir="resources")
self.del_output_dir_helper()
def test_get_assembly_mapping_data(self):
assembly_mapping_data = self.resource.get_assembly_mapping_data(
"NCBI36", "GRCh37")
assert len(assembly_mapping_data) == 25
def test_get_gsa_resources(self):
gsa_resources = self.resource.get_gsa_resources()
assert len(gsa_resources["rsid_map"]) == 618541
assert len(gsa_resources["chrpos_map"]) == 665609
def test_get_all_resources(self):
resources = self.resource.get_all_resources()
for k, v in resources.items():
if not v:
assert False
assert True
def test_download_example_datasets(self):
paths = self.resource.download_example_datasets()
for path in paths:
if not path or not os.path.exists(path):
warnings.warn("Example dataset(s) not currently available")
return
assert True
def test_get_paths_reference_sequences_invalid_assembly(self):
assembly, chroms, urls, paths = self.resource._get_paths_reference_sequences(
assembly="36")
assert not assembly
assert not chroms
assert not urls
assert not paths
def test_create_reference_sequences_NCBI36(self):
assembly, chroms, urls, paths = self.resource._get_paths_reference_sequences(
assembly="NCBI36", chroms=["MT"])
seqs = self.resource._create_reference_sequences(
assembly, chroms, urls, paths)
assert len(seqs) == 1
assert seqs["MT"].__repr__(
) == "ReferenceSequence(assembly='NCBI36', ID='MT')"
assert seqs["MT"].ID == "MT"
assert seqs["MT"].chrom == "MT"
assert (
seqs["MT"].url ==
"ftp://ftp.ensembl.org/pub/release-54/fasta/homo_sapiens/dna/Homo_sapiens.NCBI36.54.dna.chromosome.MT.fa.gz"
)
assert (
seqs["MT"].path ==
"resources/fasta/NCBI36/Homo_sapiens.NCBI36.54.dna.chromosome.MT.fa.gz"
)
assert os.path.exists(seqs["MT"].path)
assert seqs["MT"].assembly == "NCBI36"
assert seqs["MT"].build == "B36"
assert seqs["MT"].species == "H**o sapiens"
assert seqs["MT"].taxonomy == "x"
def test_create_reference_sequences_GRCh37(self):
assembly, chroms, urls, paths = self.resource._get_paths_reference_sequences(
assembly="GRCh37", chroms=["MT"])
seqs = self.resource._create_reference_sequences(
assembly, chroms, urls, paths)
assert len(seqs) == 1
assert seqs["MT"].__repr__(
) == "ReferenceSequence(assembly='GRCh37', ID='MT')"
assert seqs["MT"].ID == "MT"
assert seqs["MT"].chrom == "MT"
assert (
seqs["MT"].url ==
"ftp://ftp.ensembl.org/pub/grch37/release-96/fasta/homo_sapiens/dna/Homo_sapiens.GRCh37.dna.chromosome.MT.fa.gz"
)
assert (
seqs["MT"].path ==
"resources/fasta/GRCh37/Homo_sapiens.GRCh37.dna.chromosome.MT.fa.gz"
)
assert os.path.exists(seqs["MT"].path)
assert seqs["MT"].assembly == "GRCh37"
assert seqs["MT"].build == "B37"
assert seqs["MT"].species == "H**o sapiens"
assert seqs["MT"].taxonomy == "x"
def test_create_reference_sequences_GRCh38(self):
assembly, chroms, urls, paths = self.resource._get_paths_reference_sequences(
assembly="GRCh38", chroms=["MT"])
seqs = self.resource._create_reference_sequences(
assembly, chroms, urls, paths)
assert len(seqs) == 1
assert seqs["MT"].__repr__(
) == "ReferenceSequence(assembly='GRCh38', ID='MT')"
assert seqs["MT"].ID == "MT"
assert seqs["MT"].chrom == "MT"
assert (
seqs["MT"].url ==
"ftp://ftp.ensembl.org/pub/release-96/fasta/homo_sapiens/dna/Homo_sapiens.GRCh38.dna.chromosome.MT.fa.gz"
)
assert (
seqs["MT"].path ==
"resources/fasta/GRCh38/Homo_sapiens.GRCh38.dna.chromosome.MT.fa.gz"
)
assert os.path.exists(seqs["MT"].path)
assert seqs["MT"].assembly == "GRCh38"
assert seqs["MT"].build == "B38"
assert seqs["MT"].species == "H**o sapiens"
assert seqs["MT"].taxonomy == "x"
def test_create_reference_sequences_invalid_path(self):
assembly, chroms, urls, paths = self.resource._get_paths_reference_sequences(
assembly="GRCh38", chroms=["MT"])
paths[0] = ""
seqs = self.resource._create_reference_sequences(
assembly, chroms, urls, paths)
assert len(seqs) == 0
def test_get_reference_sequences(self):
seqs = self.resource.get_reference_sequences(chroms=["MT"])
assert len(seqs) == 1
assert seqs["MT"].__repr__(
) == "ReferenceSequence(assembly='GRCh37', ID='MT')"
assert seqs["MT"].ID == "MT"
assert seqs["MT"].chrom == "MT"
assert (
seqs["MT"].url ==
"ftp://ftp.ensembl.org/pub/grch37/release-96/fasta/homo_sapiens/dna/Homo_sapiens.GRCh37.dna.chromosome.MT.fa.gz"
)
assert (
seqs["MT"].path ==
"resources/fasta/GRCh37/Homo_sapiens.GRCh37.dna.chromosome.MT.fa.gz"
)
assert os.path.exists(seqs["MT"].path)
assert seqs["MT"].assembly == "GRCh37"
assert seqs["MT"].build == "B37"
assert seqs["MT"].species == "H**o sapiens"
assert seqs["MT"].taxonomy == "x"
def test_get_all_reference_sequences(self):
seqs = self.resource.get_all_reference_sequences(chroms=["MT"])
assert len(seqs) == 3
assert len(seqs["NCBI36"]) == 1
assert (
seqs["NCBI36"]["MT"].path ==
"resources/fasta/NCBI36/Homo_sapiens.NCBI36.54.dna.chromosome.MT.fa.gz"
)
assert len(seqs["GRCh37"]) == 1
assert (
seqs["GRCh37"]["MT"].path ==
"resources/fasta/GRCh37/Homo_sapiens.GRCh37.dna.chromosome.MT.fa.gz"
)
assert len(seqs["GRCh38"]) == 1
assert (
seqs["GRCh38"]["MT"].path ==
"resources/fasta/GRCh38/Homo_sapiens.GRCh38.dna.chromosome.MT.fa.gz"
)
def test_get_reference_sequences_invalid_assembly(self):
seqs = self.resource.get_reference_sequences(assembly="36")
assert len(seqs) == 0
def test_get_reference_sequences_chrom_not_available(self):
self.resource.get_reference_sequences(chroms=["MT"])
del self.resource._reference_sequences["GRCh37"]["MT"]
seqs = self.resource.get_reference_sequences(chroms=["MT"])
assert len(seqs) == 1
assert seqs["MT"].__repr__(
) == "ReferenceSequence(assembly='GRCh37', ID='MT')"
assert seqs["MT"].ID == "MT"
assert seqs["MT"].chrom == "MT"
assert (
seqs["MT"].url ==
"ftp://ftp.ensembl.org/pub/grch37/release-96/fasta/homo_sapiens/dna/Homo_sapiens.GRCh37.dna.chromosome.MT.fa.gz"
)
assert (
seqs["MT"].path ==
"resources/fasta/GRCh37/Homo_sapiens.GRCh37.dna.chromosome.MT.fa.gz"
)
assert os.path.exists(seqs["MT"].path)
assert seqs["MT"].assembly == "GRCh37"
assert seqs["MT"].build == "B37"
assert seqs["MT"].species == "H**o sapiens"
assert seqs["MT"].taxonomy == "x"
def test_reference_sequence_load_sequence(self):
seqs = self.resource.get_reference_sequences(chroms=["MT"])
assert len(seqs["MT"].sequence) == 16569
assert seqs["MT"].md5 == "c68f52674c9fb33aef52dcf399755519"
assert seqs["MT"].start == 1
assert seqs["MT"].end == 16569
assert seqs["MT"].length == 16569
seqs["MT"].clear()
assert seqs["MT"]._sequence.size == 0
assert seqs["MT"]._md5 == ""
assert seqs["MT"]._start == 0
assert seqs["MT"]._end == 0
assert seqs["MT"]._length == 0
assert len(seqs["MT"].sequence) == 16569
assert seqs["MT"].md5 == "c68f52674c9fb33aef52dcf399755519"
assert seqs["MT"].start == 1
assert seqs["MT"].end == 16569
assert seqs["MT"].length == 16569
def test_reference_sequence_generic_load_sequence(self):
with open("tests/input/generic.fa", "rb") as f_in:
with atomic_write("tests/input/generic.fa.gz",
mode="wb",
overwrite=True) as f_out:
with gzip.open(f_out, "wb") as f_gzip:
shutil.copyfileobj(f_in, f_gzip)
seq = ReferenceSequence(ID="1", path="tests/input/generic.fa.gz")
assert seq.ID == "1"
assert seq.chrom == "1"
assert seq.path == "tests/input/generic.fa.gz"
np.testing.assert_array_equal(
seq.sequence,
np.array(
bytearray(
"NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNAGGCCGGACNNNNNNNN",
encoding="utf-8",
errors="strict",
),
dtype=np.uint8,
),
)
assert list("AGGCCGGAC") == list(map(chr, seq.sequence[100:109]))
assert seq.md5 == "6ac6176535ad0e38aba2d05d786c39b6"
assert seq.start == 1
assert seq.end == 117
assert seq.length == 117
def test_get_opensnp_datadump_filenames(self):
# temporarily set resources dir to tests
self.resource._resources_dir = "tests/resources"
# write test openSNP datadump zip
with atomic_write("tests/resources/opensnp_datadump.current.zip",
mode="wb",
overwrite=True) as f:
with zipfile.ZipFile(f, "w") as f_zip:
f_zip.write("tests/input/generic.csv", arcname="generic1.csv")
f_zip.write("tests/input/generic.csv", arcname="generic2.csv")
filenames = self.resource.get_opensnp_datadump_filenames()
assert filenames == ["generic1.csv", "generic2.csv"]
self.resource._resources_dir = "resources"
from atomicwrites import atomic_write
import pandas as pd
from snps import SNPs
from snps.resources import Resources
from snps.utils import Parallelizer, save_df_as_csv, create_dir, clean_str
OUTPUT_DIR = "output"
EXTRACT_FILES = True
# create output directory for this example
create_dir(OUTPUT_DIR)
# assume script is being run from examples dir
r = Resources(resources_dir="../../resources")
# setup logger to output to file in output directory
logging.basicConfig(
filename=f'{os.path.join(OUTPUT_DIR, "parse-opensnp-files.txt")}',
format="%(asctime)s: %(message)s",
filemode="w",
level=logging.INFO,
)
logger = logging.getLogger()
def load_file(task):
file = task["file"]
import numpy as np
from matplotlib import patches
import matplotlib.pyplot as plt
import pandas as pd
from snps import SNPs
from snps.resources import Resources
from snps.utils import Parallelizer, save_df_as_csv, create_dir
OUTPUT_DIR = "output"
# create output directory for this example
create_dir(OUTPUT_DIR)
# assume script is being run from examples dir
r = Resources(resources_dir="../../resources")
# setup logger to output to file in output directory
logging.basicConfig(
filename=f"{os.path.join(OUTPUT_DIR, 'xy-chrom-snp-ratios.txt')}",
format="%(asctime)s#%(message)s",
filemode="w",
level=logging.INFO,
)
logger = logging.getLogger()
def get_xy_chrom_snp_ratios(task):
file = task["file"]
def setUp(self):
self.resource = Resources(resources_dir="resources")
self.del_output_dir_helper()
""" Get a file from the openSNP datadump for debugging. """
import os
from atomicwrites import atomic_write
from snps.resources import Resources
from snps.utils import create_dir
OUTPUT_DIR = "output"
FILE = "user662_file340_yearofbirth_unknown_sex_unknown.23andme.txt"
if __name__ == "__main__":
# create output directory for this example
create_dir(OUTPUT_DIR)
# assume script is being run from examples dir
r = Resources(resources_dir="../../resources")
with atomic_write(os.path.join(OUTPUT_DIR, FILE), mode="wb") as f:
f.write(r.load_opensnp_datadump_file(FILE))
filter_user_genotypes,
get_1kg_samples,
impute_missing,
vcf2df,
)
DATA_DIR = "data"
OUTPUT_DIR = "output"
aisnp_SET = "kidd et al. 55 aisnps" # {"kidd et al. 55 aisnps", "Seldin et al. 128 aisnps"}
DIMENSIONALITY_REDUCTION_ALGORITHM = "pca" # {"pca", "umap", "t-SNE"}
# create output directory for this example
create_dir(OUTPUT_DIR)
# assume `opensnp_datadump.current.zip` is found at this location
r = Resources(resources_dir=DATA_DIR)
# setup logger to output to file in output directory
logging.basicConfig(
filename=f'{os.path.join(OUTPUT_DIR, "opensnp_ancestry.txt")}',
format="%(asctime)s: %(message)s",
filemode="w",
level=logging.INFO,
)
def main():
logging.info("start analysis")
# get filenames from openSNP data dump
filenames = r.get_opensnp_datadump_filenames()
