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"""
Tests for conversion between utype sequences and STC ASTs.
"""
#c Copyright 2008-2024, the GAVO project <gavo@ari.uni-heidelberg.de>
#c
#c This program is free software, covered by the GNU GPL. See the
#c COPYING file in the source distribution.
from gavo.helpers import testhelpers
from gavo import stc
from gavo.stc import dm
class CoosysGenerTest(testhelpers.VerboseTest):
"""tests for generation of coosys utype dicts from STC ASTs.
"""
def _assertSetmatch(self, literal, expected):
ast = stc.parseSTCS(literal)
self.assertEqual(dict(stc.getUtypes(ast)),
expected)
def testRef(self):
tree = dm.STCSpec(astroSystem=stc.getLibrarySystem("TT-ICRS-OPT-BARY-TOPO"))
self.assertEqual(stc.getUtypes(tree),
[('stc:AstroCoordSystem.href',
'ivo://STClib/CoordSys#TT-ICRS-OPT-BARY-TOPO')])
def testSimpleSystems(self):
self._assertSetmatch("Time TT Position ICRS GEOCENTER Spectral BARYCENTER"
" Redshift BARYCENTER VELOCITY OPTICAL", {
'stc:AstroCoordSystem.SpaceFrame.CoordRefFrame': 'ICRS',
'stc:AstroCoordSystem.TimeFrame.TimeScale': 'TT',
'stc:AstroCoordSystem.RedshiftFrame.DopplerDefinition': 'OPTICAL',
'stc:AstroCoordSystem.RedshiftFrame.value_type': 'VELOCITY',
'stc:AstroCoordSystem.RedshiftFrame.ReferencePosition': 'BARYCENTER',
'stc:AstroCoordSystem.SpaceFrame.CoordFlavor': 'SPHERICAL',
'stc:AstroCoordSystem.SpectralFrame.ReferencePosition': 'BARYCENTER',
'stc:AstroCoordSystem.SpaceFrame.ReferencePosition': 'GEOCENTER'})
def testWithEquinox(self):
self._assertSetmatch("Position FK4 J1975.0", {
'stc:AstroCoordSystem.SpaceFrame.CoordRefFrame': 'FK4',
'stc:AstroCoordSystem.SpaceFrame.CoordRefFrame.Equinox': 'J1975.0',
'stc:AstroCoordSystem.SpaceFrame.CoordFlavor': 'SPHERICAL',})
def testWithDistance(self):
self._assertSetmatch("Position ICRS BARYCENTER SPHER3 unit deg deg pc",{
'stc:AstroCoordSystem.SpaceFrame.CoordFlavor.coord_naxes': '3',
'stc:AstroCoordSystem.SpaceFrame.CoordRefFrame': 'ICRS',
'stc:AstroCoordSystem.SpaceFrame.CoordFlavor': 'SPHERICAL',
'stc:AstroCoordSystem.SpaceFrame.ReferencePosition': 'BARYCENTER'})
def testWithPleph(self):
self._assertSetmatch("Position ICRS BARYCENTER JPL-DE405", {
'stc:AstroCoordSystem.SpaceFrame.CoordFlavor': 'SPHERICAL',
'stc:AstroCoordSystem.SpaceFrame.CoordRefFrame': 'ICRS',
'stc:AstroCoordSystem.SpaceFrame.ReferencePosition.PlanetaryEphem':
'JPL-DE405',
'stc:AstroCoordSystem.SpaceFrame.ReferencePosition': 'BARYCENTER'})
CR = stc.ColRef
class CooGenerTest(testhelpers.VerboseTest):
"""tests for generation of column utype dicts from STC ASTs.
"""
def _assertAssmatch(self, literal, truth):
ast = stc.parseQSTCS(literal)
gr = [p for p in stc.getUtypes(ast)
if not p[0].startswith("stc:AstroCoordSystem")]
self.assertEqual(dict(gr), truth)
def testTrivialPos(self):
self._assertAssmatch('Position ICRS "ra" "dec"', {
'stc:AstroCoords.Position2D.Value2.C1': CR("ra"),
'stc:AstroCoords.Position2D.Value2.C2': CR("dec"),
})
def testMixedPos(self):
self._assertAssmatch('Position ICRS "ra" 20.0', {
'stc:AstroCoords.Position2D.Value2.C1': CR("ra"),
'stc:AstroCoords.Position2D.Value2.C2': '20.0',
})
def testVecPos(self):
self._assertAssmatch('Position ICRS [point]',
{'stc:AstroCoords.Position2D.Value2': CR("point")})
def testVecPos3(self):
self._assertAssmatch('Position ICRS SPHER3 [point]',
{'stc:AstroCoords.Position3D.Value3': CR('point')})
def testVecEpoch(self):
self._assertAssmatch('Position ICRS Epoch J2010.5', {
'stc:AstroCoords.Position2D.Epoch': '2010.5',
'stc:AstroCoords.Position2D.Epoch.yearDef': 'J'})
def testBesselEpoch(self):
self._assertAssmatch('Position ICRS Epoch B2010.5', {
'stc:AstroCoords.Position2D.Epoch': '2010.5',
'stc:AstroCoords.Position2D.Epoch.yearDef': 'B'})
def testVeloc(self):
self._assertAssmatch(
'Position ICRS VelocityInterval Velocity "pmra" "pmde"', {
'stc:AstroCoords.Velocity2D.Value2.C2': CR('pmde'),
'stc:AstroCoords.Velocity2D.Value2.C1': CR('pmra')})
def testErrorRadius(self):
self._assertAssmatch(
'Position ICRS Error "ep" "ep"', {
'stc:AstroCoords.Position2D.Error2Radius': CR('ep')})
def testTime(self):
self._assertAssmatch('Time TT "obsDate"', {
'stc:AstroCoords.Time.TimeInstant': CR("obsDate"),})
def testTimeA(self):
self._assertAssmatch(
'TimeInterval TT "start" "end"', {
'stc:AstroCoordArea.TimeInterval.StartTime': CR('start'),
'stc:AstroCoordArea.TimeInterval.StopTime': CR('end')})
def testGeoRef(self):
self._assertAssmatch('Circle FK5 J1000.0 [circle]', {
'stc:AstroCoordArea.Circle': CR('circle')})
self._assertAssmatch('Box FK5 J1000.0 [bbox]', {
'stc:AstroCoordArea.Box': CR('bbox')})
self._assertAssmatch('Polygon FK5 J1000.0 [poly]', {
'stc:AstroCoordArea.Polygon': CR('poly')})
def testGeoSplit(self):
self._assertAssmatch('Circle FK5 J1000.0 "cx" "cy" "radius"', {
'stc:AstroCoordArea.Circle.Center.C2': CR('cy'),
'stc:AstroCoordArea.Circle.Center.C1': CR('cx'),
'stc:AstroCoordArea.Circle.Radius': CR('radius')})
def testError(self):
self._assertAssmatch('Position ICRS Error "e_ra" "e_dec"', {
'stc:AstroCoords.Position2D.Error2.C1': CR('e_ra'),
'stc:AstroCoords.Position2D.Error2.C2': CR('e_dec')})
def testEpoch(self):
self._assertAssmatch('Position ICRS Epoch "epum" 10 20', {
'stc:AstroCoords.Position2D.Epoch': CR('epum'),
'stc:AstroCoords.Position2D.Epoch.yearDef': 'J',
'stc:AstroCoords.Position2D.Value2.C1': '10.0',
'stc:AstroCoords.Position2D.Value2.C2': '20.0'})
def testRedshift(self):
self._assertAssmatch('Redshift "z" Error "zErr"', {
'stc:AstroCoords.Redshift.Value': CR('z'),
'stc:AstroCoords.Redshift.Error': CR('zErr')
})
def testCombined(self):
self._assertAssmatch('Time TT "dateObs" Error "e_date"'
' Circle ICRS "cra" "cdec" "crad" Position "ra" "dec"'
' Error "e_ra" "e_dec" Size "s_ra" "s_dec"'
' SpectralInterval "bandLow" "bandHigh"'
' Redshift "z" Error "zErr"', {
'stc:AstroCoordArea.SpectralInterval.HiLimit': CR('bandHigh'),
'stc:AstroCoordArea.SpectralInterval.LoLimit': CR('bandLow'),
'stc:AstroCoordArea.Circle.Center.C2': CR('cdec'),
'stc:AstroCoordArea.Circle.Center.C1': CR('cra'),
'stc:AstroCoordArea.Circle.Radius': CR('crad'),
'stc:AstroCoords.Time.TimeInstant': CR('dateObs'),
'stc:AstroCoords.Position2D.Value2.C2': CR('dec'),
'stc:AstroCoords.Position2D.Error2.C2': CR('e_dec'),
'stc:AstroCoords.Position2D.Error2.C1': CR('e_ra'),
'stc:AstroCoords.Time.Error': CR('e_date'),
'stc:AstroCoords.Position2D.Value2.C1': CR('ra'),
'stc:AstroCoords.Position2D.Size2.C2': CR('s_dec'),
'stc:AstroCoords.Position2D.Size2.C1': CR('s_ra'),
'stc:AstroCoords.Redshift.Value': CR('z'),
'stc:AstroCoords.Redshift.Error': CR('zErr'),
})
class UtypeASTTest(testhelpers.VerboseTest):
"""tests for building STC ASTs out of utype sequences.
"""
def _getASTFromSTCS(self, stcs):
ast = stc.parseQSTCS(stcs)
utypes = stc.getUtypes(ast)
return stc.parseFromUtypes(utypes)
def testSimplePos(self):
ast = self._getASTFromSTCS('Position GALACTIC "long" "lat"')
self.assertEqual(ast.astroSystem.spaceFrame.refFrame, "GALACTIC_II")
self.assertEqual(ast.place.value[0].dest, "long")
self.assertEqual(ast.place.frame.refFrame, "GALACTIC_II")
def testWithError(self):
ast = self._getASTFromSTCS('Position GALACTIC Error "e1" "e1"')
self.assertEqual(ast.place.error.radii[0].dest, "e1")
def testWithEquinox(self):
ast = self._getASTFromSTCS("Position FK4 J1975.0 Epoch B2000.0")
self.assertEqual(ast.astroSystem.spaceFrame.equinox, "J1975.0")
self.assertEqual(ast.place.yearDef, "B")
self.assertEqual(ast.place.epoch, 2000.)
def testTime(self):
ast = self._getASTFromSTCS(
'Time TT TOPOCENTER "dateObs" Error "clockdamage"')
self.assertEqual(ast.time.value.dest, "dateObs")
self.assertEqual(ast.time.error.values[0].dest, "clockdamage")
self.assertEqual(ast.time.frame.refPos.standardOrigin, "TOPOCENTER")
self.assertEqual(ast.time.frame.timeScale, "TT")
def testGeoComp(self):
ast = self._getASTFromSTCS('Circle ICRS [errc]')
self.assertEqual(ast.areas[0].geoColRef.dest, "errc")
def testTimeTDBScale(self):
ast = self._getASTFromSTCS('Time TDB "time"')
self.assertEqual(ast.time.frame.timeScale, 'TDB')
def testPleph(self):
ast = self._getASTFromSTCS('Time TDB TOPOCENTER JPL-DE405')
self.assertEqual(ast.astroSystem.timeFrame.refPos.planetaryEphemeris,
"JPL-DE405")
class UtypeRoundtripTest(testhelpers.VerboseTest, metaclass=testhelpers.SamplesBasedAutoTest):
"""tests for working roundtrip of utype de-/serialization.
"""
def _assertSublist(self, sub, full):
sub, full = dict(sub), dict(full)
for k, v in sub.items():
if k not in full:
raise AssertionError("%s not in full"%k)
if sub[k]!=full[k]:
raise AssertionError("%s has wrong value, %s instead of %s"%(
k, full[k], sub[k]))
def _runTest(self, args):
inTypes = args
ast = stc.parseFromUtypes(inTypes)
outTypes = stc.getUtypes(ast, includeDMURI=True)
# allow additional keys in output (non-removed defaults)
self._assertSublist(inTypes, outTypes)
samples = [
[],
[('stc:AstroCoordSystem.SpaceFrame.CoordRefFrame', 'ICRS')],
[('stc:AstroCoordSystem.SpaceFrame.CoordRefFrame', 'ICRS'),
('stc:AstroCoords.Position2D.Epoch', '2002.0'),
('stc:DataModel.URI', 'http://www.ivoa.net/xml/STC/stc-v1.30.xsd'),
],
[('stc:AstroCoords.Position2D.Value2.C1', stc.ColRef('ra')),
('stc:AstroCoords.Position2D.Value2.C2', stc.ColRef('dec'))],
[('stc:AstroCoordSystem.SpaceFrame.CoordRefFrame', 'ICRS'),
('stc:AstroCoordSystem.TimeFrame.TimeScale', 'TT'),
('stc:AstroCoordSystem.RedshiftFrame.DopplerDefinition', 'OPTICAL'),
('stc:AstroCoordSystem.RedshiftFrame.value_type', 'VELOCITY'),
('stc:AstroCoordSystem.RedshiftFrame.ReferencePosition', 'BARYCENTER'),
('stc:AstroCoordSystem.SpaceFrame.CoordFlavor', 'SPHERICAL'),
('stc:AstroCoordSystem.SpectralFrame.ReferencePosition', 'BARYCENTER'),
('stc:AstroCoordSystem.SpaceFrame.ReferencePosition', 'GEOCENTER'),
('stc:AstroCoords.Position2D.Value2.C1', stc.ColRef('ra')),
('stc:AstroCoords.Position2D.Value2.C2', stc.ColRef('dec'))],
[('stc:AstroCoordSystem.SpaceFrame.CoordRefFrame', 'ICRS'),
('stc:AstroCoordSystem.SpaceFrame.CoordFlavor', 'CARTESIAN'),
('stc:AstroCoordSystem.SpaceFrame.CoordFlavor.coord_naxes', '3')],
[
('stc:AstroCoords.Time.TimeInstant', '2000-01-01T00:00:00'),
('stc:AstroCoordArea.Circle', stc.ColRef('errc'))],
[
('stc:AstroCoordSystem.href',
'ivo://STClib/CoordSys#TT-ICRS-OPT-BARY-TOPO')],
[
('stc:AstroCoordSystem.SpaceFrame.CoordFlavor', 'SPHERICAL'),
('stc:AstroCoordSystem.SpaceFrame.CoordFlavor.coord_naxes', '3'),
('stc:AstroCoordSystem.SpaceFrame.CoordRefFrame', 'ICRS'),
('stc:AstroCoords.Position3D.Value3.C1', stc.ColRef('raj2000')),
('stc:AstroCoords.Position3D.Value3.C2', stc.ColRef('dej2000')),
('stc:AstroCoords.Position3D.Value3.C3', stc.ColRef('dist_binney'))
],
[
('stc:AstroCoordSystem.SpaceFrame.CoordFlavor', 'SPHERICAL'),
('stc:AstroCoordSystem.SpaceFrame.CoordFlavor.coord_naxes', '3'),
('stc:AstroCoordSystem.SpaceFrame.CoordRefFrame', 'ICRS'),
('stc:AstroCoords.Position3D.Value3.C2', stc.ColRef('dej2000')),
],
]
if __name__=="__main__":
testhelpers.main(CooGenerTest)
|
