class IOTests(unittest.TestCase):
def setUp(self):
p = np.arange(1, 1001, 2)
temp = 10. * np.exp(-.008*p) - 15. * np.exp(-0.005*(p+100)) + 2.
sal = -14. * np.exp(-.01*p) + 34.
self.p = p
self.temp = temp
self.sal = sal
dt = datetime.datetime(1993, 8, 18, 14, 42, 36)
self.cast = Cast(pres=self.p, temp=self.temp, sal=self.sal, date=dt)
self.ctd = CTDCast(self.p, self.sal, self.temp, date=dt)
self.collection = CastCollection(self.ctd, self.ctd)
return
def assertFilesEqual(self, f1, f2):
f1.seek(0)
f2.seek(0)
s1 = f1.read()
s2 = f2.read()
self.assertEqual(s1, s2)
return
def test_fromdict_cast(self):
d = {"type": "cast",
"properties": {"coordinates": (-10.0, 54.0),
"date": "2015-04-17 15:03 UTC",
"notes": "CTD touched bottom"},
"data": {"depth": np.arange(1.0, 500.0, 2.0),
"temperature": np.linspace(8.0, 4.0, 250),
"salinity": np.linspace(32.1, 34.4, 250)}}
cast = narwhal.cast.fromdict(d)
self.assertEqual(cast.p["coordinates"], (-10.0, 54.0))
self.assertEqual(cast.p["date"],
datetime.datetime(2015, 4, 17, 15, 3,
tzinfo=dateutil.tz.tzutc()))
self.assertEqual(cast.p["notes"], "CTD touched bottom")
self.assertTrue((cast["depth"] == d["data"]["depth"]).all())
self.assertTrue((cast["temperature"] == d["data"]["temperature"]).all())
self.assertTrue((cast["salinity"] == d["data"]["salinity"]).all())
return
def test_iojson_text(self):
self.cast.save_json(os.path.join(DATADIR, "json_cast.nwl"),
binary=False)
cast = narwhal.load_json(os.path.join(DATADIR, "json_cast.nwl"))
self.assertTrue(np.all(cast["pres"] == self.cast["pres"]))
self.assertTrue(np.all(cast["temp"] == self.cast["temp"]))
self.assertTrue(np.all(cast["sal"] == self.cast["sal"]))
self.assertEqual(cast.p["date"], self.cast.p["date"])
return
def test_save_json_text(self):
try:
f = StringIO()
self.cast.save_json(f, binary=False)
finally:
f.close()
return
def test_save_json_binary(self):
try:
f = BytesIO()
self.cast.save_json(f)
finally:
f.close()
return
def test_save_collection_json_text(self):
try:
f = StringIO()
self.collection.save_json(f, binary=False)
finally:
f.close()
return
def test_save_collection_json_binary(self):
try:
f = BytesIO()
self.collection.save_json(f)
finally:
f.close()
return
