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# This file is part of verify. 

# 

# Developed for the LSST Data Management System. 

# This product includes software developed by the LSST Project 

# (https://www.lsst.org). 

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

# for details of code ownership. 

# 

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

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

# 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 GNU General Public License 

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

 

import unittest 

import astropy.units as u 

import yaml 

 

from lsst.verify.blob import Blob 

from lsst.verify.datum import Datum 

 

 

class BlobTestCase(unittest.TestCase): 

"""Test Blob functionality.""" 

 

def setUp(self): 

self.mag1 = Datum( 

quantity=5 * u.mag, 

label='mag1', 

description='Magnitude') 

 

self.mag2 = Datum( 

quantity=10 * u.mag, 

label='mag2', 

description='Magnitude') 

 

self.blob = Blob('demo', mag1=self.mag1, mag2=self.mag2) 

 

def test_access(self): 

self.assertEqual(self.blob['mag1'], self.mag1) 

self.assertEqual(self.blob['mag2'], self.mag2) 

 

with self.assertRaises(KeyError): 

self.blob['magX'] 

 

def test_len(self): 

self.assertEqual(len(self.blob), 2) 

 

def test_contains(self): 

self.assertTrue('mag1' in self.blob) 

self.assertTrue('mag2' in self.blob) 

self.assertFalse('magX' in self.blob) 

 

def test_iter(self): 

keys = set([k for k in self.blob]) 

self.assertEqual(keys, set(['mag1', 'mag2'])) 

 

def test_name(self): 

self.assertEqual(self.blob.name, 'demo') 

 

def test_identifier(self): 

new_blob = Blob('demo') 

self.assertNotEqual(new_blob.identifier, self.blob.identifier) 

 

def test_json(self): 

j = self.blob.json 

 

self.assertIn('identifier', j) 

self.assertEqual(self.blob.name, 'demo') 

self.assertEqual(j['data']['mag1']['value'], 5) 

self.assertEqual(j['data']['mag1']['unit'], 'mag') 

self.assertEqual(j['data']['mag1']['label'], 'mag1') 

self.assertEqual(j['data']['mag1']['description'], 'Magnitude') 

 

# Rebuild from blob 

b2 = Blob.deserialize(**j) 

self.assertEqual(self.blob, b2) 

 

def test_yaml(self): 

yaml_form = yaml.dump(self.blob) 

blob2 = yaml.safe_load(yaml_form) 

self.assertEqual(self.blob, blob2) 

 

def test_mutation(self): 

blob = Blob('mutable') 

self.assertEqual(len(blob), 0) 

 

blob['test'] = Datum(quantity=1 * u.arcsec) 

self.assertEqual(len(blob), 1) 

 

with self.assertRaises(TypeError): 

blob['fails'] = 10 

self.assertEqual(len(blob), 1) 

 

with self.assertRaises(KeyError): 

blob[10] = Datum(quantity=1 * u.arcsec) 

self.assertEqual(len(blob), 1) 

 

del blob['test'] 

self.assertEqual(len(blob), 0) 

 

 

110 ↛ 111line 110 didn't jump to line 111, because the condition on line 110 was never trueif __name__ == "__main__": 

unittest.main()