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from __future__ import absolute_import, division, print_function 

import unittest 

 

import numpy as np 

from numpy.testing import assert_allclose 

 

import astshim as ast 

from astshim.test import MappingTestCase 

 

 

class TestCmpMap(MappingTestCase): 

 

"""Test compound maps: CmpMap, ParallelMap and SeriesMap 

""" 

 

def setUp(self): 

self.nin = 2 

self.zoom = 1.3 

self.shift = [-0.5, 1.2] 

self.zoommap = ast.ZoomMap(self.nin, self.zoom) 

self.shiftmap = ast.ShiftMap(self.shift) 

 

def test_SeriesMap(self): 

sermap = ast.SeriesMap(self.shiftmap, self.zoommap) 

self.assertEqual(sermap.getRefCount(), 1) 

 

self.checkBasicSimplify(sermap) 

self.checkCopy(sermap) 

self.checkMemoryForCompoundObject(self.shiftmap, self.zoommap, sermap, isSeries=True) 

 

sermap2 = self.shiftmap.then(self.zoommap) 

self.checkBasicSimplify(sermap2) 

self.checkCopy(sermap2) 

self.checkMemoryForCompoundObject(self.shiftmap, self.zoommap, sermap2, isSeries=True) 

 

sermap3 = ast.CmpMap(self.shiftmap, self.zoommap, True) 

self.checkBasicSimplify(sermap3) 

self.checkCopy(sermap3) 

self.checkMemoryForCompoundObject(self.shiftmap, self.zoommap, sermap3, isSeries=True) 

 

indata = np.array([ 

[1.0, 2.0, -6.0, 30.0, 0.2], 

[3.0, 99.9, -5.1, 21.0, 0.0], 

], dtype=float) 

pred_outdata = ((indata.T + self.shift) * self.zoom).T 

topos = sermap.applyForward(indata) 

assert_allclose(topos, pred_outdata) 

 

topos2 = sermap2.applyForward(indata) 

assert_allclose(topos2, pred_outdata) 

 

topos3 = sermap3.applyForward(indata) 

assert_allclose(topos3, pred_outdata) 

 

self.checkRoundTrip(sermap, indata) 

self.checkRoundTrip(sermap2, indata) 

self.checkRoundTrip(sermap3, indata) 

 

self.checkMappingPersistence(sermap, indata) 

self.checkMappingPersistence(sermap2, indata) 

self.checkMappingPersistence(sermap3, indata) 

 

def test_ParallelMap(self): 

parmap = ast.ParallelMap(self.shiftmap, self.zoommap) 

# adding to a ParallelMap increases by 1 

self.assertEqual(self.shiftmap.getRefCount(), 2) 

# adding to a ParallelMap increases by 1 

self.assertEqual(self.zoommap.getRefCount(), 2) 

self.assertEqual(parmap.nIn, self.nin * 2) 

self.assertEqual(parmap.nOut, self.nin * 2) 

self.assertFalse(parmap.series) 

 

self.checkBasicSimplify(parmap) 

self.checkCopy(parmap) 

self.checkMemoryForCompoundObject(self.shiftmap, self.zoommap, parmap, isSeries=False) 

 

parmap2 = self.shiftmap.under(self.zoommap) 

self.checkBasicSimplify(parmap2) 

self.checkCopy(parmap2) 

self.checkMemoryForCompoundObject(self.shiftmap, self.zoommap, parmap2, isSeries=False) 

 

indata = np.array([ 

[3.0, 1.0, -6.0], 

[2.2, 3.0, -5.1], 

[-5.6, 2.0, 30.0], 

[0.32, 99.9, 21.0], 

], dtype=float) 

pred_outdata = indata.copy() 

pred_outdata.T[:, 0:2] += self.shift 

pred_outdata.T[:, 2:4] *= self.zoom 

topos = parmap.applyForward(indata) 

assert_allclose(topos, pred_outdata) 

 

topos2 = parmap2.applyForward(indata) 

assert_allclose(topos2, pred_outdata) 

 

parmap3 = ast.CmpMap(self.shiftmap, self.zoommap, False) 

self.checkBasicSimplify(parmap3) 

self.checkCopy(parmap3) 

self.checkMemoryForCompoundObject(self.shiftmap, self.zoommap, parmap3, isSeries=False) 

 

topos3 = parmap3.applyForward(indata) 

assert_allclose(topos3, pred_outdata) 

 

self.checkRoundTrip(parmap, indata) 

self.checkRoundTrip(parmap2, indata) 

self.checkRoundTrip(parmap3, indata) 

 

self.checkMappingPersistence(parmap, indata) 

self.checkMappingPersistence(parmap2, indata) 

self.checkMappingPersistence(parmap3, indata) 

 

def test_SeriesMapMatrixShiftSimplify(self): 

"""Test that a non-square matrix map followed by a shift map can be simplified 

 

This is ticket DM-10946 

""" 

m1 = 1.0 

m2 = 2.0 

shift = 3.0 

matrixMap = ast.MatrixMap(np.array([[m1, m2]])) 

self.assertEqual(matrixMap.nIn, 2) 

self.assertEqual(matrixMap.nOut, 1) 

shiftMap = ast.ShiftMap([shift]) 

seriesMap = matrixMap.then(shiftMap) 

 

indata = np.array([ 

[1.0, 2.0, 3.0], 

[0.0, 1.0, 2.0], 

], dtype=float) 

pred_outdata = m1 * indata[0] + m2 * indata[1] + shift 

pred_outdata.shape = (1, len(pred_outdata)) 

 

outdata = seriesMap.applyForward(indata) 

assert_allclose(outdata, pred_outdata) 

 

simplifiedMap = seriesMap.simplify() 

outdata2 = simplifiedMap.applyForward(indata) 

assert_allclose(outdata2, pred_outdata) 

 

 

142 ↛ 143line 142 didn't jump to line 143, because the condition on line 142 was never trueif __name__ == "__main__": 

unittest.main()