[2b310602] | 1 | """ |
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| 2 | Unit tests for the SESANS .ses reader |
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| 3 | """ |
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| 4 | |
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| 5 | import unittest |
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[17e257b5] | 6 | from sas.sascalc.dataloader.loader_exceptions import FileContentsException,\ |
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| 7 | DefaultReaderException |
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[ade1080] | 8 | from sas.sascalc.dataloader.readers.sesans_reader import Reader |
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[a67c494] | 9 | from sas.sascalc.dataloader.loader import Loader |
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[2b310602] | 10 | |
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| 11 | class sesans_reader(unittest.TestCase): |
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| 12 | |
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| 13 | def setUp(self): |
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[ade1080] | 14 | reader = Reader() |
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| 15 | self.loader = reader.read |
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[2b310602] | 16 | |
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[a67c494] | 17 | def test_full_load(self): |
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[2b310602] | 18 | """ |
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[a67c494] | 19 | Test .SES in the full loader to make sure that the file type is correctly accepted |
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[2b310602] | 20 | """ |
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[17e257b5] | 21 | file = Loader().load("sesans_examples/sphere2micron.ses") |
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| 22 | f = file[0] |
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[2b310602] | 23 | # self.assertEqual(f, 5) |
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| 24 | self.assertEqual(len(f.x), 40) |
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| 25 | self.assertEqual(f.x[0], 391.56) |
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| 26 | self.assertEqual(f.x[-1], 46099) |
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| 27 | self.assertEqual(f.y[-1], -0.19956) |
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| 28 | self.assertEqual(f.x_unit, "A") |
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| 29 | self.assertEqual(f.y_unit, "A-2 cm-1") |
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| 30 | self.assertEqual(f.sample.name, "Polystyrene 2 um in 53% H2O, 47% D2O") |
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| 31 | self.assertEqual(f.sample.thickness, 0.2) |
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| 32 | self.assertEqual(f.sample.zacceptance, (0.0168, "radians")) |
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[bfd34a7] | 33 | self.assertEqual(f.isSesans, True) |
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[2b310602] | 34 | |
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[ebed4de] | 35 | def test_sesans_tof(self): |
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| 36 | """ |
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| 37 | Test .SES loading on a TOF dataset |
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| 38 | """ |
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[17e257b5] | 39 | file = self.loader("sesans_examples/sphere_isis.ses") |
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| 40 | f = file[0] |
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[ebed4de] | 41 | self.assertEqual(len(f.x), 57) |
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| 42 | self.assertEqual(f.x[-1], 19303.4) |
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| 43 | self.assertEqual(f.source.wavelength[-1], 13.893668) |
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[7e56311] | 44 | self.assertEqual(f.source.wavelength[0], 1.612452) |
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| 45 | self.assertEqual(f.sample.yacceptance, (0.09, "radians")) |
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| 46 | self.assertEqual(f.sample.zacceptance, (0.09, "radians")) |
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| 47 | self.assertEqual(f.sample.thickness, 0.2) |
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[ebed4de] | 48 | |
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[a79ab31] | 49 | def test_sesans_no_data(self): |
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| 50 | """ |
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[10ab40e] | 51 | Confirm that sesans files with no actual data won't load. |
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[a79ab31] | 52 | """ |
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[ade1080] | 53 | self.assertRaises( |
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[17e257b5] | 54 | FileContentsException, |
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[ade1080] | 55 | self.loader, |
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| 56 | "sesans_examples/sesans_no_data.ses") |
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[ebed4de] | 57 | |
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[5ae40e7] | 58 | def test_sesans_no_spin_echo_unit(self): |
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| 59 | """ |
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| 60 | Confirm that sesans files with no units from the spin echo length raise an appropriate error |
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| 61 | """ |
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| 62 | self.assertRaises( |
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[17e257b5] | 63 | FileContentsException, |
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[5ae40e7] | 64 | self.loader, |
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| 65 | "sesans_examples/no_spin_echo_unit.ses") |
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| 66 | |
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[a81af92] | 67 | def test_sesans_future_version(self): |
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| 68 | """ |
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| 69 | Confirm that sesans files that, according to semantic version, are from a future, backwards-incompatible version of the SES file format throw an exception. |
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| 70 | """ |
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| 71 | self.assertRaises( |
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[17e257b5] | 72 | FileContentsException, |
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[a81af92] | 73 | self.loader, |
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| 74 | "sesans_examples/next_gen.ses") |
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[e801a4e] | 75 | |
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| 76 | def test_sesans_mandatory_headers(self): |
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| 77 | """ |
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| 78 | Confirm that sesans files throw an exception if one of the mandator headers is missing. |
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| 79 | """ |
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| 80 | self.assertRaises( |
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[17e257b5] | 81 | FileContentsException, |
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[e801a4e] | 82 | self.loader, |
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| 83 | "sesans_examples/no_wavelength.ses") |
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| 84 | |
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[35cf5c0] | 85 | def test_sesans_columns_match_headers(self): |
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| 86 | """ |
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| 87 | Confirm that sesans files throw an exception if one of the mandator headers is missing. |
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| 88 | """ |
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| 89 | self.assertRaises( |
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[17e257b5] | 90 | FileContentsException, |
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[35cf5c0] | 91 | self.loader, |
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| 92 | "sesans_examples/too_many_headers.ses") |
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| 93 | |
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[2b310602] | 94 | if __name__ == "__main__": |
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| 95 | unittest.main() |
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