| 1 | """ |
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| 2 | Unit tests for loading data files using the extension registry |
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| 3 | """ |
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| 4 | |
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| 5 | import logging |
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| 6 | import unittest |
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| 7 | import os |
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| 8 | import shutil |
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| 9 | import numpy as np |
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| 10 | |
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| 11 | from sas.sascalc.dataloader.loader import Registry as Loader |
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| 12 | |
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| 13 | logger = logging.getLogger(__name__) |
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| 14 | |
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| 15 | |
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| 16 | def find(filename): |
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| 17 | return os.path.join(os.path.dirname(__file__), filename) |
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| 18 | |
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| 19 | |
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| 20 | class ExtensionRegistryTests(unittest.TestCase): |
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| 21 | |
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| 22 | def setUp(self): |
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| 23 | self.valid_file = find("valid_cansas_xml.xml") |
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| 24 | self.valid_file_wrong_known_ext = find("valid_cansas_xml.txt") |
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| 25 | self.valid_file_wrong_unknown_ext = find("valid_cansas_xml.xyz") |
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| 26 | shutil.copyfile(self.valid_file, self.valid_file_wrong_known_ext) |
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| 27 | shutil.copyfile(self.valid_file, self.valid_file_wrong_unknown_ext) |
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| 28 | self.invalid_file = find("cansas1d_notitle.xml") |
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| 29 | |
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| 30 | self.loader = Loader() |
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| 31 | |
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| 32 | def test_wrong_known_ext(self): |
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| 33 | """ |
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| 34 | Load a valid CanSAS XML file that has the extension '.txt', which is in |
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| 35 | the extension registry. Compare the results to loading the same file |
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| 36 | with the extension '.xml' |
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| 37 | """ |
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| 38 | correct = self.loader.load(self.valid_file) |
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| 39 | wrong_ext = self.loader.load(self.valid_file_wrong_known_ext) |
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| 40 | self.assertEqual(len(correct), 1) |
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| 41 | self.assertEqual(len(wrong_ext), 1) |
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| 42 | correct = correct[0] |
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| 43 | wrong_ext = wrong_ext[0] |
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| 44 | |
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| 45 | self.assertTrue(np.all(correct.x == wrong_ext.x)) |
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| 46 | self.assertTrue(np.all(correct.y == wrong_ext.y)) |
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| 47 | self.assertTrue(np.all(correct.dy == wrong_ext.dy)) |
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| 48 | |
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| 49 | def test_wrong_unknown_ext(self): |
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| 50 | """ |
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| 51 | Load a valid CanSAS XML file that has the extension '.xyz', which isn't |
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| 52 | in the extension registry. Compare the results to loading the same file |
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| 53 | with the extension '.xml' |
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| 54 | """ |
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| 55 | correct = self.loader.load(self.valid_file) |
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| 56 | wrong_ext = self.loader.load(self.valid_file_wrong_unknown_ext) |
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| 57 | self.assertEqual(len(correct), 1) |
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| 58 | self.assertEqual(len(wrong_ext), 1) |
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| 59 | correct = correct[0] |
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| 60 | wrong_ext = wrong_ext[0] |
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| 61 | |
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| 62 | self.assertTrue(np.all(correct.x == wrong_ext.x)) |
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| 63 | self.assertTrue(np.all(correct.y == wrong_ext.y)) |
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| 64 | self.assertTrue(np.all(correct.dy == wrong_ext.dy)) |
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| 65 | |
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| 66 | def test_data_reader_exception(self): |
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| 67 | """ |
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| 68 | Load a CanSAS XML file that doesn't meet the schema, and check errors |
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| 69 | are set correctly |
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| 70 | """ |
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| 71 | data = self.loader.load(self.invalid_file) |
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| 72 | self.assertEqual(len(data), 1) |
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| 73 | data = data[0] |
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| 74 | self.assertEqual(len(data.errors), 1) |
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| 75 | |
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| 76 | err_msg = data.errors[0] |
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| 77 | self.assertTrue("does not fully meet the CanSAS v1.x specification" in err_msg) |
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| 78 | |
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| 79 | def tearDown(self): |
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| 80 | if os.path.isfile(self.valid_file_wrong_known_ext): |
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| 81 | os.remove(self.valid_file_wrong_known_ext) |
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| 82 | if os.path.isfile(self.valid_file_wrong_unknown_ext): |
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| 83 | os.remove(self.valid_file_wrong_unknown_ext) |
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