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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