Coverage for tests / test_schemaUtils.py: 25%

1# This file is part of pipe_tasks. 

2# 

3# Developed for the LSST Data Management System. 

4# This product includes software developed by the LSST Project 

5# (https://www.lsst.org). 

6# See the COPYRIGHT file at the top-level directory of this distribution 

7# for details of code ownership. 

8# 

9# This program is free software: you can redistribute it and/or modify 

10# it under the terms of the GNU General Public License as published by 

11# the Free Software Foundation, either version 3 of the License, or 

12# (at your option) any later version. 

13# 

14# This program is distributed in the hope that it will be useful, 

15# but WITHOUT ANY WARRANTY; without even the implied warranty of 

16# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 

17# GNU General Public License for more details. 

18# 

19# You should have received a copy of the GNU General Public License 

20# along with this program. If not, see <https://www.gnu.org/licenses/>. 

21 

22import os 

23import unittest 

24 

25import pandas as pd 

26 

27from lsst.pipe.tasks.schemaUtils import readSdmSchemaFile, make_empty_catalog, convertDataFrameToSdmSchema 

28 

29 

30class TestSchemaUtils(unittest.TestCase): 

31 

32 def test_make_empty_catalog(self): 

33 """Check that an empty catalog has the correct format. 

34 """ 

35 schemaFile = os.path.join("${SDM_SCHEMAS_DIR}", "yml", "apdb.yaml") 

36 schema = readSdmSchemaFile(schemaFile) 

37 

38 tableNames = ["DiaObject", "DiaSource", "DiaForcedSource"] 

39 for tableName in tableNames: 

40 emptyDiaObjects = make_empty_catalog(schema, tableName=tableName) 

41 self.assertTrue(emptyDiaObjects.empty) 

42 

43 emptyColumns = set(emptyDiaObjects.columns) 

44 self.assertIn("ra", emptyColumns) 

45 self.assertIn("dec", emptyColumns) 

46 self.assertIn("diaObjectId", emptyColumns) 

47 

48 emptyDf = pd.DataFrame(columns=["diaObjectId",]) 

49 emptyDf.set_index("diaObjectId") 

50 convertedEmptyDiaObjects = convertDataFrameToSdmSchema(schema, emptyDf, tableName=tableName) 

51 # TODO: we have no tests of convertDataFrameToSdmSchema, so it's dangerous to use it as an oracle. 

52 emptyTypes = dict(zip(emptyDiaObjects.columns, emptyDiaObjects.dtypes)) 

53 convertedEmptyTypes = dict(zip(convertedEmptyDiaObjects.columns, convertedEmptyDiaObjects.dtypes)) 

54 self.assertEqual(emptyTypes, convertedEmptyTypes)