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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