| 1 | import unittest
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| 2 | from asap import scantable, selector, rcParams
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| 3 | rcParams["verbose"] = False
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| 4 |
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| 5 | class ScantableTest(unittest.TestCase):
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| 6 | def setUp(self):
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| 7 |
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| 8 | self.st = scantable("data/MOPS.rpf", average=True)
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| 9 |
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| 10 | def test_init(self):
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| 11 | st = scantable("data/MOPS.rpf", average=False)
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| 12 | self.assertEqual(st.ncycle(), 32)
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| 13 | st = scantable("data/MOPS.rpf", average=True)
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| 14 | self.assertEqual(st.ncycle(), 2)
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| 15 | st = scantable("data/MOPS.rpf", unit="Jy")
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| 16 | self.assertEqual(st.get_fluxunit(), "Jy")
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| 17 | st = scantable("data/MOPS.rpf", unit="K")
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| 18 | self.assertEqual(st.get_fluxunit(), "K")
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| 19 | self.assertRaises(RuntimeError, scantable, "data/MOPS.rpf", unit="junk")
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| 20 | st = scantable(["data/MOPS.rpf","data/MOPS.rpf"], average=False)
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| 21 | self.assertEqual(st.nscan(), 4)
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| 22 |
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| 23 | def test_copy(self):
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| 24 | st = self.st.copy()
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| 25 | self.assertNotEqual(id(st), id(self.st))
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| 26 |
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| 27 | def test_drop_scan(self):
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| 28 | st = self.st.drop_scan([1])
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| 29 | self.assertEqual(st.nscan(), 1)
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| 30 |
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| 31 | def test_get_scan(self):
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| 32 | st = self.st.get_scan([1])
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| 33 | self.assertEqual(st.nscan(), 1)
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| 34 | st = self.st.get_scan("Orion_SiO_R")
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| 35 | self.assertEqual(st.get_sourcename()[-1], "Orion_SiO_R")
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| 36 | self.assertEqual(st.nscan(), 1)
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| 37 |
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| 38 | def test_get_spectrum(self):
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| 39 | spec = self.st.get_spectrum(0)
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| 40 | self.assertAlmostEqual(max(spec), 215.279830933)
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| 41 |
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| 42 | def test_get_mask(self):
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| 43 | spec = self.st.get_mask(0)
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| 44 | self.assertEqual(len(spec), 4096)
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| 45 |
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| 46 | def test_set_spectrum(self):
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| 47 | spec = [ 1.0 for i in range(self.st.nchan()) ]
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| 48 | self.st.set_spectrum(spec, 0)
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| 49 | spec1 = self.st.get_spectrum(0)
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| 50 | self.assertAlmostEqual(max(spec1), 1.0)
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| 51 |
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| 52 | def test_selection(self):
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| 53 | sel = selector()
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| 54 | sel.set_polarisations("YY")
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| 55 | self.st.set_selection(sel)
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| 56 | self.assertEqual(self.st.getpolnos(), (1,))
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| 57 | sel1 = self.st.get_selection()
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| 58 | self.assertEqual(sel1.get_pols(), [1])
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| 59 |
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| 60 | def test_stats(self):
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| 61 | stats = { 'min': 113.767166138,
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| 62 | 'max':215.279830933, 'sumsq':128759200.0,
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| 63 | 'sum':720262.375, 'mean':175.845306396,
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| 64 | 'var':513.95324707, 'stddev':22.6705360413,
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| 65 | 'avdev':16.3966751099, 'rms':177.300170898,
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| 66 | 'median':182.891845703}
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| 67 | for k,v in stats.iteritems():
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| 68 | sval = self.st.stats(stat=k)
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| 69 | self.assertAlmostEqual(sval[0], v)
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| 70 | msk = self.st.create_mask([0,100], [3900,4096])
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| 71 | self.assertAlmostEqual(self.st.stats("sum", msk)[0], 35216.87890625)
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| 72 |
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| 73 | def test_get_column_names(self):
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| 74 | cnames = ['SCANNO', 'CYCLENO', 'BEAMNO', 'IFNO',
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| 75 | 'POLNO', 'FREQ_ID', 'MOLECULE_ID', 'REFBEAMNO',
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| 76 | 'TIME', 'INTERVAL', 'SRCNAME', 'SRCTYPE',
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| 77 | 'FIELDNAME', 'SPECTRA', 'FLAGTRA', 'TSYS',
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| 78 | 'DIRECTION', 'AZIMUTH', 'ELEVATION',
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| 79 | 'PARANGLE', 'OPACITY', 'TCAL_ID', 'FIT_ID',
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| 80 | 'FOCUS_ID', 'WEATHER_ID', 'SRCVELOCITY',
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| 81 | 'SRCPROPERMOTION', 'SRCDIRECTION',
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| 82 | 'SCANRATE']
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| 83 | self.assertEqual(self.st.get_column_names(), cnames)
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| 84 |
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| 85 |
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| 86 | if __name__ == '__main__':
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| 87 | unittest.main()
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| 88 |
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