1 | """ |
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2 | Unit tests for the generic file reader class |
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3 | """ |
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4 | |
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5 | import os |
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6 | import unittest |
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7 | import logging |
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8 | import numpy as np |
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9 | |
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10 | from sas.sascalc.dataloader.data_info import DataInfo, plottable_1D |
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11 | from sas.sascalc.dataloader.file_reader_base_class import FileReader |
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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 GenericFileReaderTests(unittest.TestCase): |
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21 | |
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22 | def setUp(self): |
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23 | self.reader = TestFileReader() |
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24 | self.bad_file = find("ACB123.txt") |
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25 | self.good_file = find("123ABC.txt") |
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26 | |
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27 | def test_bad_file_path(self): |
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28 | output = self.reader.read(self.bad_file) |
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29 | self.assertEqual(output, []) |
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30 | |
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31 | def test_good_file_path(self): |
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32 | f = open(self.good_file, 'w') |
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33 | f.write('123ABC exists!') |
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34 | f.close() |
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35 | output = self.reader.read(self.good_file) |
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36 | self.assertEqual(len(output), 1) |
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37 | self.assertEqual(output[0].meta_data["blah"], '123ABC exists!') |
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38 | |
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39 | def tearDown(self): |
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40 | if os.path.isfile(self.bad_file): |
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41 | os.remove(self.bad_file) |
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42 | if os.path.isfile(self.good_file): |
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43 | os.remove(self.good_file) |
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44 | |
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45 | class TestFileReader(FileReader): |
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46 | def get_file_contents(self): |
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47 | """ |
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48 | Reader specific class to access the contents of the file |
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49 | All reader classes that inherit from FileReader must implement |
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50 | """ |
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51 | x = np.zeros(0) |
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52 | y = np.zeros(0) |
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53 | self.current_dataset = plottable_1D(x,y) |
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54 | self.current_datainfo = DataInfo() |
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55 | self.current_datainfo.meta_data["blah"] = self.nextline() |
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56 | self.send_to_output() |
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