-
Notifications
You must be signed in to change notification settings - Fork 18
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
2 changed files
with
126 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,3 @@ | ||
name, ra, dec, counts, flux, resolved | ||
object 1, -5.0, 10.0, 1000, 1.1, 1 | ||
object 2, 45.0, 5.0, 2000, 1.2, 0 |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,123 @@ | ||
from __future__ import absolute_import, division, print_function | ||
# | ||
# LSST Data Management System | ||
# Copyright 2016 LSST Corporation. | ||
# | ||
# This product includes software developed by the | ||
# LSST Project (http://www.lsst.org/). | ||
# | ||
# This program is free software: you can redistribute it and/or modify | ||
# it under the terms of the GNU General Public License as | ||
# the Free Software Foundation, either version 3 of the License, or | ||
# (at your option) any later version. | ||
# | ||
# This program is distributed in the hope that it will be useful, | ||
# but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
# GNU General Public License for more details. | ||
# | ||
# You should have received a copy of the LSST License Statement and | ||
# the GNU General Public License along with this program. If not, | ||
# see <http://www.lsstcorp.org/LegalNotices/>. | ||
# | ||
from itertools import izip | ||
import os | ||
import unittest | ||
|
||
import numpy as np | ||
|
||
import lsst.utils | ||
from lsst.pipe.tasks.readCatalog import ReadTextCatalogTask | ||
|
||
# If you want to update the FITS table used for this test: | ||
# - modify makeFitsTable to create the table as you want it | ||
# - set SaveTextCatalog = True | ||
# - sun the test once to create the new file | ||
# - set SaveTextCatalog = False again | ||
SaveTextCatalog = False # construct and save a new text table file? | ||
TestDir = os.path.dirname(__file__) | ||
TextPath = os.path.join(TestDir, "data", "testReadTextCatalog.csv") | ||
|
||
|
||
def setup_module(module): | ||
lsst.utils.tests.init() | ||
|
||
|
||
def makeCatalog(): | ||
"""Create an object catalog as a numpy structured array | ||
dtypes are chosen to match how the data is read back in, for ease in testing | ||
""" | ||
dtype = [("name", "a8"), ("ra", "float64"), ("dec", "float64"), | ||
("counts", "int64"), ("flux", "float64"), ("resolved", "int64")] | ||
data = [ | ||
("object 1", -5, 10, 1000, 1.1, True), | ||
("object 2", 45, 5, 2000, 1.2, False), | ||
] | ||
return np.array(data, dtype=dtype) | ||
|
||
if SaveTextCatalog: | ||
print("Warning: writing a new text catalog file; to stop this set SaveTextCatalog = False") | ||
arr = makeCatalog() | ||
with open(TextPath, "w") as f: | ||
f.write(", ".join(arr.dtype.names)) | ||
f.write("\n") | ||
for row in arr: | ||
f.write(", ".join(str(val) for val in row)) | ||
f.write("\n") | ||
|
||
|
||
class ReadTextCatalogTaskTestCase(lsst.utils.tests.TestCase): | ||
"""Test ReadTextCatalogTask, a reader used by IngestIndexedReferenceTask""" | ||
def setUp(self): | ||
self.arr = makeCatalog() | ||
|
||
def testDefaultNames(self): | ||
"""Test reading without renaming | ||
""" | ||
task = ReadTextCatalogTask() | ||
arr = task.run(TextPath) | ||
self.assertTrue(np.array_equal(arr, self.arr)) | ||
self.assertEqual(len(arr), 2) | ||
|
||
def testGivenNames(self): | ||
"""Test reading with column names in the config | ||
""" | ||
colnames = ("id", "ra_deg", "dec_deg", "total_counts", "total_flux", "is_resolved") | ||
config = ReadTextCatalogTask.ConfigClass() | ||
config.colnames = colnames | ||
config.header_lines = 1 | ||
task = ReadTextCatalogTask(config=config) | ||
arr = task.run(TextPath) | ||
self.assertEqual(arr.dtype.names, colnames) | ||
self.assertEqual(len(arr), 2) | ||
for inname, outname in izip(self.arr.dtype.names, colnames): | ||
self.assertTrue(np.array_equal(self.arr[inname], arr[outname])) | ||
|
||
def testBadPath(self): | ||
"""Test that an invalid path causes an error""" | ||
task = ReadTextCatalogTask() | ||
badPath = "does/not/exists.garbage" | ||
with self.assertRaises(IOError): | ||
task.run(badPath) | ||
|
||
def testTooFewColumnNames(self): | ||
"""Test that too few names in config.colnames causes an error""" | ||
config = ReadTextCatalogTask.ConfigClass() | ||
for badColNames in ( | ||
["name", "ra", "dec", "counts", "flux"], | ||
["name"], | ||
): | ||
config.colnames = badColNames | ||
config.header_lines = 1 | ||
task = ReadTextCatalogTask(config=config) | ||
with self.assertRaises(ValueError): | ||
task.run(TextPath) | ||
|
||
|
||
class MyMemoryTestCase(lsst.utils.tests.MemoryTestCase): | ||
pass | ||
|
||
if __name__ == "__main__": | ||
lsst.utils.tests.init() | ||
unittest.main() |