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test_va.py
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test_va.py
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import numpy as np
import unittest
import os
import geosoft
import geosoft.gxapi as gxapi
import geosoft.gxpy.va as gxva
import geosoft.gxpy.utility as gxu
from base import GXPYTest
class Test(GXPYTest):
def test_va(self):
self.start()
self.assertEqual(gxva.__version__, geosoft.__version__)
with gxva.GXva(width=12, dtype=np.float) as va:
self.assertTrue(isinstance(va.gxva, gxapi.GXVA))
self.assertEqual(va.fid, (0.0,1.0))
self.assertEqual(va.width, 12)
fid = (10.1,0.99)
with gxva.GXva(width=7, dtype=np.float, fid=fid) as va:
self.assertEqual(va.fid, fid)
self.assertEqual(va.width, 7)
fid = (-45,7)
va.fid = fid
self.assertEqual(va.fid,fid)
va.refid((-40,8),4)
self.assertEqual(va.fid,(-40,8))
self.assertEqual(va.length,4)
self.assertEqual(va.dimensions, (4,7))
self.assertEqual(va.gxtype, gxu.gx_dtype(np.float))
self.assertEqual(va.np.shape, (4, 7))
va.length = 16
self.assertEqual(va.fid,(-40,8))
self.assertEqual(va.length,16)
self.assertEqual(va.dimensions, (16,7))
self.assertEqual(va.gxtype, gxu.gx_dtype(np.float))
self.assertEqual(va.np.shape, (16, 7))
def test_exceptions(self):
self.start()
self.assertRaises(gxva.VAException, gxva.GXva,
np.array([["bones", "queens", "geology"], ["a", "b", "c"]]))
with gxva.GXva([[1, 2, 3, 4, 5, 6, 7]], width=7, dtype=np.float) as va:
self.assertRaises(gxva.VAException, va.get_data, dtype="U7")
with gxva.GXva(np.array(range(45)).reshape((9, 5))) as va:
self.assertRaises(gxva.VAException, va.get_data, n=0)
with gxva.GXva(np.array(range(45)).reshape((9, 5))) as va:
self.assertRaises(gxva.VAException, va.get_data, n_col=0)
with gxva.GXva(np.array(range(40)).reshape((20, 2))) as va:
self.assertRaises(gxva.VAException, va.set_data, np.array(range(3)))
def test_np(self):
self.start()
fid = (99,0.1)
npdata = np.array(range(45)).reshape((9,5))
with gxva.GXva(npdata, fid=fid) as va:
self.assertEqual(va.fid, fid)
self.assertEqual(va.length, npdata.shape[0])
self.assertEqual(va.width, npdata.shape[1])
np2 = va.get_data(va.dtype)
self.assertEqual(np2[0].shape, npdata.shape)
np2,fid2 = va.get_data(dtype=va.dtype, start=1)
self.assertEqual(fid2,(99.1,.1))
self.assertEqual(np2.shape, (8, 5))
self.assertEqual(va.get_data(start=6)[0].shape, (3, 5))
try:
self.assertEqual(va.get_data(dtype=va.dtype, start=50)[0].shape, (0,))
self.assertTrue(False)
except gxva.VAException:
pass
np3,fid3 = va.get_data(np.int)
self.assertEqual(fid3,fid)
self.assertEqual(np3[0, 0], 0)
self.assertEqual(np3[1, 4], 9)
np3, fid3 = va.get_data(np.float64)
self.assertEqual(fid3, fid)
self.assertEqual(np3[0, 0], 0.0)
self.assertEqual(np3[1, 4], 9.0)
np3, fid3 = va.get_data(np.float64, n=2)
self.assertEqual(fid3, fid)
self.assertEqual(np3.shape[0], 2)
self.assertEqual(np3[0, 0], 0.0)
self.assertEqual(np3[1, 4], 9.0)
np3, fid3 = va.get_data(np.float64, n=99)
self.assertEqual(fid3, fid)
self.assertEqual(np3.shape[0], va.length)
np3, fid3 = va.get_data(np.float64, n_col=3)
self.assertEqual(fid3, fid)
self.assertEqual(np3.shape[1], 3)
np3, fid3 = va.get_data(np.float64, n_col=99)
self.assertEqual(fid3, fid)
self.assertEqual(np3.shape[1], va.width)
npdata = np.array(range(64), dtype=np.int).reshape(4, 16)
npdata[1, 2] = gxapi.iDUMMY
with gxva.GXva(npdata, fid=fid) as va:
np3, fid = va.get_data(dtype=np.int64)
self.assertEqual(np3[0, 0], 0.)
self.assertEqual(np3[2, 11], 43)
self.assertEqual(np3[1, 2], gxapi.GS_S8DM)
np3, fid = va.get_data(dtype=np.int32)
self.assertEqual(np3[0, 0], 0.)
self.assertEqual(np3[2, 11], 43)
self.assertEqual(np3[1, 2], gxapi.GS_S4DM)
self.assertEqual(np3[1, 2], gxapi.iDUMMY)
np3, fid = va.get_data(np.float)
self.assertEqual(np3[0, 0], 0.)
self.assertEqual(np3[2, 11], 43.)
self.assertTrue(np.isnan(np3[1, 2]))
d = np.array(range(32), dtype=np.int).reshape(-1, va.width)
d[0,3] = gxu.gx_dummy(d.dtype)
va.set_data(d)
np3, fid = va.get_data(dtype=np.int32)
self.assertEqual(np3.shape[0], 2)
self.assertEqual(np3[0,0], 0)
self.assertEqual(np3[1,15], 31)
self.assertEqual(np3[0, 3], gxapi.GS_S4DM)
def test_iterator(self):
self.start()
npdata = np.array(range(45)).reshape((9, 5))
with gxva.GXva(npdata) as va:
self.assertEqual(tuple(va[0][0]), (0, 1, 2, 3, 4))
self.assertEqual(va[4][1], 4)
list2d = [v[0] for v in va]
self.assertEqual(tuple(list2d[1]), (5, 6, 7, 8, 9))
self.assertEqual(va.np.shape, (9, 5))
def test_strings(self):
self.start()
fidva = (99,0.1)
npdata = np.array(["name","maki","neil","macleod"]).reshape(2,2)
self.assertRaises(gxva.VAException, gxva.GXva, npdata, fid=fidva)
def test_uom(self):
self.start()
npdata = np.array(range(45)).reshape((9, 5))
with gxva.GXva(npdata, unit_of_measure='maki') as va:
self.assertEqual(va.unit_of_measure, 'maki')
va.unit_of_measure = 'nT'
self.assertEqual(va.unit_of_measure, 'nT')
def test_dummy_nan(self):
self.start()
npdata = np.array(range(45), dtype=np.float32).reshape((9, 5))
npdata[0,1] = np.nan
with gxva.GXva(npdata) as va:
self.assertTrue(npdata[0,1])
self.assertEqual(tuple(va[0][0])[4], 4.)
self.assertTrue(np.isnan(va[0][0][1]))
def test_empty(self):
self.start()
empty = np.array([[],[]])
va = gxva.GXva(empty, width=2)
self.assertEqual(len(va), 0)
self.assertEqual(va.np.size, 0)
va.set_data(empty)
self.assertEqual(len(va), 0)
self.assertEqual(va.np.size, 0)
##############################################################################################
if __name__ == '__main__':
unittest.main()