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test_client.py
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test_client.py
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# -*- coding: utf-8 -*-
"""
The obspy.clients.iris.client test suite.
"""
import os
import unittest
import numpy as np
import pytest
from obspy.core.utcdatetime import UTCDateTime
from obspy.core.util import NamedTemporaryFile
from obspy.clients.iris import Client
pytestmark = pytest.mark.network
class ClientTestCase(unittest.TestCase):
"""
Test cases for obspy.clients.iris.client.Client.
"""
def setUp(self):
# directory where the test files are located
self.path = os.path.dirname(__file__)
def test_sacpz(self):
"""
Fetches SAC poles and zeros information.
"""
client = Client()
# 1
t1 = UTCDateTime("2005-01-01")
t2 = UTCDateTime("2008-01-01")
result = client.sacpz("IU", "ANMO", "00", "BHZ", t1, t2)
# drop lines with creation date (current time during request)
result = result.splitlines()
sacpz_file = os.path.join(self.path, 'data', 'IU.ANMO.00.BHZ.sacpz')
with open(sacpz_file, 'rb') as fp:
expected = fp.read().splitlines()
result.pop(5)
expected.pop(5)
self.assertEqual(result, expected)
# 2 - empty location code
dt = UTCDateTime("2002-11-01")
result = client.sacpz('UW', 'LON', '', 'BHZ', dt)
self.assertIn(b"* STATION (KSTNM): LON", result)
self.assertIn(b"* LOCATION (KHOLE):", result)
# 3 - empty location code via '--'
result = client.sacpz('UW', 'LON', '--', 'BHZ', dt)
self.assertIn(b"* STATION (KSTNM): LON", result)
self.assertIn(b"* LOCATION (KHOLE):", result)
def test_distaz(self):
"""
Tests distance and azimuth calculation between two points on a sphere.
"""
client = Client()
# normal request
result = client.distaz(stalat=1.1, stalon=1.2, evtlat=3.2, evtlon=1.4)
self.assertAlmostEqual(result['distance'], 2.10256)
self.assertAlmostEqual(result['distancemeters'], 233272.79028)
self.assertAlmostEqual(result['backazimuth'], 5.46944)
self.assertAlmostEqual(result['azimuth'], 185.47695)
self.assertEqual(result['ellipsoidname'], 'WGS84')
self.assertTrue(isinstance(result['distance'], float))
self.assertTrue(isinstance(result['distancemeters'], float))
self.assertTrue(isinstance(result['backazimuth'], float))
self.assertTrue(isinstance(result['azimuth'], float))
self.assertTrue(isinstance(result['ellipsoidname'], str))
# w/o kwargs
result = client.distaz(1.1, 1.2, 3.2, 1.4)
self.assertAlmostEqual(result['distance'], 2.10256)
self.assertAlmostEqual(result['distancemeters'], 233272.79028)
self.assertAlmostEqual(result['backazimuth'], 5.46944)
self.assertAlmostEqual(result['azimuth'], 185.47695)
self.assertEqual(result['ellipsoidname'], 'WGS84')
# missing parameters
self.assertRaises(Exception, client.distaz, stalat=1.1)
self.assertRaises(Exception, client.distaz, 1.1)
self.assertRaises(Exception, client.distaz, stalat=1.1, stalon=1.2)
self.assertRaises(Exception, client.distaz, 1.1, 1.2)
def test_flinnengdahl(self):
"""
Tests calculation of Flinn-Engdahl region code or name.
"""
client = Client()
# code
result = client.flinnengdahl(lat=-20.5, lon=-100.6, rtype="code")
self.assertEqual(result, 683)
self.assertTrue(isinstance(result, int))
# w/o kwargs
result = client.flinnengdahl(-20.5, -100.6, "code")
self.assertEqual(result, 683)
# region
result = client.flinnengdahl(lat=42, lon=-122.24, rtype="region")
self.assertEqual(result, 'OREGON')
self.assertTrue(isinstance(result, str))
# w/o kwargs
result = client.flinnengdahl(42, -122.24, "region")
self.assertEqual(result, 'OREGON')
# both
result = client.flinnengdahl(lat=-20.5, lon=-100.6, rtype="both")
self.assertEqual(result, (683, 'SOUTHEAST CENTRAL PACIFIC OCEAN'))
self.assertTrue(isinstance(result[0], int))
self.assertTrue(isinstance(result[1], str))
# w/o kwargs
result = client.flinnengdahl(-20.5, -100.6, "both")
self.assertEqual(result, (683, 'SOUTHEAST CENTRAL PACIFIC OCEAN'))
# default rtype
result = client.flinnengdahl(lat=42, lon=-122.24)
self.assertEqual(result, (32, 'OREGON'))
# w/o kwargs
# outside boundaries
self.assertRaises(Exception, client.flinnengdahl, lat=-90.1, lon=0)
self.assertRaises(Exception, client.flinnengdahl, lat=90.1, lon=0)
self.assertRaises(Exception, client.flinnengdahl, lat=0, lon=-180.1)
self.assertRaises(Exception, client.flinnengdahl, lat=0, lon=180.1)
def test_traveltime(self):
"""
Tests calculation of travel-times for seismic phases.
"""
client = Client()
result = client.traveltime(
evloc=(-36.122, -72.898), evdepth=22.9,
staloc=[(-33.45, -70.67), (47.61, -122.33), (35.69, 139.69)])
self.assertTrue(result.startswith(b'Model: iasp91'))
def test_evalresp(self):
"""
Tests evaluating instrument response information.
"""
client = Client()
dt = UTCDateTime("2005-01-01")
# plot as PNG file
with NamedTemporaryFile() as tf:
tempfile = tf.name
client.evalresp(network="IU", station="ANMO", location="00",
channel="BHZ", time=dt, output='plot',
filename=tempfile)
with open(tempfile, 'rb') as fp:
self.assertEqual(fp.read(4)[1:4], b'PNG')
# plot-amp as PNG file
with NamedTemporaryFile() as tf:
tempfile = tf.name
client.evalresp(network="IU", station="ANMO", location="00",
channel="BHZ", time=dt, output='plot-amp',
filename=tempfile)
with open(tempfile, 'rb') as fp:
self.assertEqual(fp.read(4)[1:4], b'PNG')
# plot-phase as PNG file
with NamedTemporaryFile() as tf:
tempfile = tf.name
client.evalresp(network="IU", station="ANMO", location="00",
channel="BHZ", time=dt, output='plot-phase',
filename=tempfile)
with open(tempfile, 'rb') as fp:
self.assertEqual(fp.read(4)[1:4], b'PNG')
# fap as ASCII file
with NamedTemporaryFile() as tf:
tempfile = tf.name
client.evalresp(network="IU", station="ANMO", location="00",
channel="BHZ", time=dt, output='fap',
filename=tempfile)
with open(tempfile, 'rt') as fp:
self.assertEqual(fp.readline(),
'1.000000E-05 1.055934E+04 1.792007E+02\n')
# cs as ASCII file
with NamedTemporaryFile() as tf:
tempfile = tf.name
client.evalresp(network="IU", station="ANMO", location="00",
channel="BHZ", time=dt, output='cs',
filename=tempfile)
with open(tempfile, 'rt') as fp:
self.assertEqual(fp.readline(),
'1.000000E-05 -1.055831E+04 1.472963E+02\n')
# fap & def as ASCII file
with NamedTemporaryFile() as tf:
tempfile = tf.name
client.evalresp(network="IU", station="ANMO", location="00",
channel="BHZ", time=dt, output='fap', units='def',
filename=tempfile)
with open(tempfile, 'rt') as fp:
self.assertEqual(fp.readline(),
'1.000000E-05 1.055934E+04 1.792007E+02\n')
# fap & dis as ASCII file
with NamedTemporaryFile() as tf:
tempfile = tf.name
client.evalresp(network="IU", station="ANMO", location="00",
channel="BHZ", time=dt, output='fap', units='dis',
filename=tempfile)
with open(tempfile, 'rt') as fp:
self.assertEqual(fp.readline(),
'1.000000E-05 6.634627E-01 2.692007E+02\n')
# fap & vel as ASCII file
with NamedTemporaryFile() as tf:
tempfile = tf.name
client.evalresp(network="IU", station="ANMO", location="00",
channel="BHZ", time=dt, output='fap', units='vel',
filename=tempfile)
with open(tempfile, 'rt') as fp:
self.assertEqual(fp.readline(),
'1.000000E-05 1.055934E+04 1.792007E+02\n')
# fap & acc as ASCII file
with NamedTemporaryFile() as tf:
tempfile = tf.name
client.evalresp(network="IU", station="ANMO", location="00",
channel="BHZ", time=dt, output='fap', units='acc',
filename=tempfile)
with open(tempfile, 'rt') as fp:
self.assertEqual(fp.readline(),
'1.000000E-05 1.680571E+08 8.920073E+01\n')
# fap as NumPy ndarray
data = client.evalresp(network="IU", station="ANMO", location="00",
channel="BHZ", time=dt, output='fap')
np.testing.assert_array_equal(
data[0], [1.00000000e-05, 1.05593400e+04, 1.79200700e+02])
# cs as NumPy ndarray
data = client.evalresp(network="IU", station="ANMO", location="00",
channel="BHZ", time=dt, output='cs')
np.testing.assert_array_equal(
data[0], [1.00000000e-05, -1.05583100e+04, 1.472963e+02])
def test_resp(self):
"""
Tests resp Web service interface.
Examples are inspired by https://service.iris.edu/irisws/resp/1/.
"""
client = Client()
# 1
t1 = UTCDateTime("2005-001T00:00:00")
t2 = UTCDateTime("2008-001T00:00:00")
result = client.resp("IU", "ANMO", "00", "BHZ", t1, t2)
self.assertIn(b'B050F03 Station: ANMO', result)
# Exception: No response data available
# 2 - empty location code
# result = client.resp("UW", "LON", "", "EHZ")
# self.assertIn(b'B050F03 Station: LON', result)
# self.assertIn(b'B052F03 Location: ??', result)
# 3 - empty location code via '--'
# result = client.resp("UW", "LON", "--", "EHZ")
# self.assertIn(b'B050F03 Station: LON', result)
# self.assertIn(b'B052F03 Location: ??', result)
# 4
dt = UTCDateTime("2010-02-27T06:30:00.000")
result = client.resp("IU", "ANMO", "*", "*", dt)
self.assertIn(b'B050F03 Station: ANMO', result)
dt = UTCDateTime("2005-001T00:00:00")
result = client.resp("AK", "RIDG", "--", "LH?", dt)
self.assertIn(b'B050F03 Station: RIDG', result)
def test_timeseries(self):
"""
Tests timeseries Web service interface.
Examples are inspired by https://service.iris.edu/irisws/timeseries/1/.
"""
client = Client()
# 1
t1 = UTCDateTime("2005-001T00:00:00")
t2 = UTCDateTime("2005-001T00:01:00")
# no filter
st1 = client.timeseries("IU", "ANMO", "00", "BHZ", t1, t2)
# instrument corrected
st2 = client.timeseries("IU", "ANMO", "00", "BHZ", t1, t2,
filter=["correct"])
# compare results
self.assertEqual(st1[0].stats.starttime, st2[0].stats.starttime)
self.assertEqual(st1[0].stats.endtime, st2[0].stats.endtime)
self.assertEqual(st1[0].data[0], 24)
self.assertAlmostEqual(st2[0].data[0], -2.8373747e-06)