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# 

# LSST Data Management System 

# Copyright 2008-2016 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 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 LSST License Statement and 

# the GNU General Public License along with this program. If not, 

# see <http://www.lsstcorp.org/LegalNotices/>. 

# 

 

import numpy as np 

import unittest 

import lsst.utils.tests 

import lsst.utils 

 

 

class MockClass: # continued class needs to be at module scope 

 

def method1(self): 

return self 

 

@classmethod 

def method2(cls): 

return cls 

 

@staticmethod 

def method3(): 

return True 

 

@property 

def property1(self): 

return False 

 

 

class DecoratorsTestCase(lsst.utils.tests.TestCase): 

 

def setUp(self): 

@lsst.utils.continueClass 

class MockClass: 

 

def method1a(self): 

return self 

 

@classmethod 

def method2a(cls): 

return cls 

 

@staticmethod 

def method3a(): 

return True 

 

@property 

def property1a(self): 

return False 

 

@lsst.utils.inClass(MockClass) 

def method1b(self): 

return self 

 

@lsst.utils.inClass(MockClass) 

@classmethod 

def method2b(cls): 

return cls 

 

@lsst.utils.inClass(MockClass) 

@staticmethod 

def method3b(): 

return True 

 

@lsst.utils.inClass(MockClass) 

@property 

def property1b(self): 

return False 

 

def testAttributeCopying(self): 

x = MockClass() 

self.assertIs(x.method1(), x) 

self.assertIs(x.method1a(), x) 

self.assertIs(x.method1b(), x) 

self.assertIs(x.method2(), MockClass) 

self.assertIs(x.method2a(), MockClass) 

self.assertIs(x.method2b(), MockClass) 

self.assertIs(MockClass.method2(), MockClass) 

self.assertIs(MockClass.method2a(), MockClass) 

self.assertIs(MockClass.method2b(), MockClass) 

self.assertTrue(x.method3()) 

self.assertTrue(x.method3a()) 

self.assertTrue(x.method3b()) 

self.assertTrue(MockClass.method3()) 

self.assertTrue(MockClass.method3a()) 

self.assertTrue(MockClass.method3b()) 

self.assertFalse(x.property1) 

self.assertFalse(x.property1a) 

self.assertFalse(x.property1b) 

 

 

class TemplateMetaSimpleTestCase(lsst.utils.tests.TestCase): 

"""Test TemplateMeta on a mockup of a template with a single dtype 

template parameter. 

""" 

 

def setUp(self): 

 

class Example(metaclass=lsst.utils.TemplateMeta): 

 

def method1(self): 

return self 

 

@classmethod 

def method2(cls): 

return cls 

 

@staticmethod 

def method3(): 

return True 

 

@property 

def property1(self): 

return False 

 

class ExampleF: 

pass 

 

class ExampleD: 

pass 

 

self.Example = Example 

self.ExampleF = ExampleF 

self.ExampleD = ExampleD 

 

def register(self): 

self.Example.register(np.float32, self.ExampleF) 

self.Example.register(np.float64, self.ExampleD) 

 

def alias(self): 

self.Example.alias("F", self.ExampleF) 

self.Example.alias("D", self.ExampleD) 

 

def testCorrectRegistration(self): 

self.register() 

self.assertEqual(self.ExampleF.dtype, np.float32) 

self.assertEqual(self.ExampleD.dtype, np.float64) 

self.assertIn(np.float32, self.Example) 

self.assertIn(np.float64, self.Example) 

self.assertEqual(self.Example[np.float32], self.ExampleF) 

self.assertEqual(self.Example[np.float64], self.ExampleD) 

 

def testAliases(self): 

self.register() 

self.alias() 

self.assertEqual(self.ExampleF.dtype, np.float32) 

self.assertEqual(self.ExampleD.dtype, np.float64) 

self.assertIn("F", self.Example) 

self.assertIn("D", self.Example) 

self.assertEqual(self.Example["F"], self.ExampleF) 

self.assertEqual(self.Example["D"], self.ExampleD) 

self.assertEqual(self.Example["F"], self.Example[np.float32]) 

self.assertEqual(self.Example["D"], self.Example[np.float64]) 

 

def testInheritanceHooks(self): 

self.register() 

self.assertTrue(issubclass(self.ExampleF, self.Example)) 

self.assertTrue(issubclass(self.ExampleD, self.Example)) 

f = self.ExampleF() 

d = self.ExampleD() 

self.assertIsInstance(f, self.Example) 

self.assertIsInstance(d, self.Example) 

self.assertEqual(set(self.Example.__subclasses__()), set([self.ExampleF, self.ExampleD])) 

 

def testConstruction(self): 

self.register() 

f1 = self.Example(dtype=np.float32) 

# Test that numpy dtype objects resolve to their underlying type 

f2 = self.Example(dtype=np.dtype(np.float32)) 

for f in (f1, f2): 

self.assertIsInstance(f, self.Example) 

self.assertIsInstance(f, self.ExampleF) 

self.assertNotIsInstance(f, self.ExampleD) 

 

with self.assertRaises(TypeError): 

self.Example() 

with self.assertRaises(TypeError): 

self.Example(dtype=np.int32) 

 

def testAttributeCopying(self): 

self.register() 

f = self.ExampleF() 

d = self.ExampleD() 

self.assertIs(f.method1(), f) 

self.assertIs(d.method1(), d) 

self.assertIs(f.method2(), self.ExampleF) 

self.assertIs(d.method2(), self.ExampleD) 

self.assertIs(self.ExampleF.method2(), self.ExampleF) 

self.assertIs(self.ExampleD.method2(), self.ExampleD) 

self.assertTrue(f.method3()) 

self.assertTrue(d.method3()) 

self.assertTrue(self.ExampleF.method3()) 

self.assertTrue(self.ExampleD.method3()) 

self.assertFalse(f.property1) 

self.assertFalse(d.property1) 

 

def testDictBehavior(self): 

self.register() 

self.assertIn(np.float32, self.Example) 

self.assertEqual(self.Example[np.float32], self.ExampleF) 

self.assertEqual(set(self.Example.keys()), 

set([np.float32, np.float64])) 

self.assertEqual(set(self.Example.values()), 

set([self.ExampleF, self.ExampleD])) 

self.assertEqual(set(self.Example.items()), 

set([(np.float32, self.ExampleF), 

(np.float64, self.ExampleD)])) 

self.assertEqual(len(self.Example), 2) 

self.assertEqual(set(iter(self.Example)), set([np.float32, np.float64])) 

self.assertEqual(self.Example.get(np.float64), self.ExampleD) 

self.assertEqual(self.Example.get(np.int32, False), False) 

 

def testNoInheritedDictBehavior(self): 

self.register() 

f = self.ExampleF() 

with self.assertRaises(Exception): # Py2:AttributeError, Py3:TypeError 

len(f) 

with self.assertRaises(Exception): # Py2:AttributeError, Py3:TypeError 

f["F"] 

with self.assertRaises(TypeError): 

for x in f: 

pass 

with self.assertRaises(TypeError): 

len(self.ExampleF) 

with self.assertRaises(TypeError): 

self.ExampleF["F"] 

with self.assertRaises(TypeError): 

for x in self.ExampleF: 

pass 

 

def testAliasUnregistered(self): 

with self.assertRaises(ValueError): 

self.Example.alias("F", self.ExampleF) 

self.assertEqual(len(self.Example), 0) 

self.assertEqual(len(self.Example), 0) 

 

def testRegisterDTypeTwice(self): 

with self.assertRaises(KeyError): 

self.Example.register("F", self.ExampleF) 

self.Example.register("F", self.ExampleD) 

self.assertEqual(len(self.Example), 1) 

 

def testRegisterTemplateTwice(self): 

with self.assertRaises(ValueError): 

self.Example.register("F", self.ExampleF) 

self.Example.register("D", self.ExampleF) 

self.assertEqual(len(self.Example), 1) 

 

 

class TemplateMetaHardTestCase(lsst.utils.tests.TestCase): 

"""Test TemplateMeta with a mockup of a template with multiple 

template parameters. 

""" 

 

def setUp(self): 

 

class Example(metaclass=lsst.utils.TemplateMeta): 

 

TEMPLATE_PARAMS = ("d", "u") 

TEMPLATE_DEFAULTS = (2, None) 

 

class Example2F: 

pass 

 

class Example2D: 

pass 

 

class Example3F: 

pass 

 

class Example3D: 

pass 

 

self.Example = Example 

self.Example2F = Example2F 

self.Example2D = Example2D 

self.Example3F = Example3F 

self.Example3D = Example3D 

 

def register(self): 

self.Example.register((2, np.float32), self.Example2F) 

self.Example.register((2, np.float64), self.Example2D) 

self.Example.register((3, np.float32), self.Example3F) 

self.Example.register((3, np.float64), self.Example3D) 

 

def alias(self): 

self.Example.alias("2F", self.Example2F) 

self.Example.alias("2D", self.Example2D) 

self.Example.alias("3F", self.Example3F) 

self.Example.alias("3D", self.Example3D) 

 

def testCorrectRegistration(self): 

self.register() 

self.assertEqual(self.Example2F.d, 2) 

self.assertEqual(self.Example2F.u, np.float32) 

self.assertEqual(self.Example2D.d, 2) 

self.assertEqual(self.Example2D.u, np.float64) 

self.assertEqual(self.Example3F.d, 3) 

self.assertEqual(self.Example3F.u, np.float32) 

self.assertEqual(self.Example3D.d, 3) 

self.assertEqual(self.Example3D.u, np.float64) 

self.assertIn((2, np.float32), self.Example) 

self.assertIn((2, np.float64), self.Example) 

self.assertIn((3, np.float32), self.Example) 

self.assertIn((3, np.float64), self.Example) 

self.assertEqual(self.Example[2, np.float32], self.Example2F) 

self.assertEqual(self.Example[2, np.float64], self.Example2D) 

self.assertEqual(self.Example[3, np.float32], self.Example3F) 

self.assertEqual(self.Example[3, np.float64], self.Example3D) 

 

def testAliases(self): 

self.register() 

self.alias() 

self.assertEqual(self.Example2F.d, 2) 

self.assertEqual(self.Example2F.u, np.float32) 

self.assertEqual(self.Example2D.d, 2) 

self.assertEqual(self.Example2D.u, np.float64) 

self.assertEqual(self.Example3F.d, 3) 

self.assertEqual(self.Example3F.u, np.float32) 

self.assertEqual(self.Example3D.d, 3) 

self.assertEqual(self.Example3D.u, np.float64) 

self.assertIn("2F", self.Example) 

self.assertIn("2D", self.Example) 

self.assertIn("3F", self.Example) 

self.assertIn("3D", self.Example) 

self.assertEqual(self.Example["2F"], self.Example2F) 

self.assertEqual(self.Example["2D"], self.Example2D) 

self.assertEqual(self.Example["3F"], self.Example3F) 

self.assertEqual(self.Example["3D"], self.Example3D) 

 

def testInheritanceHooks(self): 

self.register() 

self.assertTrue(issubclass(self.Example2F, self.Example)) 

self.assertTrue(issubclass(self.Example3D, self.Example)) 

f = self.Example2F() 

d = self.Example3D() 

self.assertIsInstance(f, self.Example) 

self.assertIsInstance(d, self.Example) 

self.assertEqual(set(self.Example.__subclasses__()), 

set([self.Example2F, self.Example2D, 

self.Example3F, self.Example3D])) 

 

def testConstruction(self): 

self.register() 

f = self.Example(u=np.float32) 

self.assertIsInstance(f, self.Example) 

self.assertIsInstance(f, self.Example2F) 

with self.assertRaises(TypeError): 

self.Example() 

with self.assertRaises(TypeError): 

self.Example(u=np.int32, d=1) 

 

def testDictBehavior(self): 

self.register() 

self.assertIn((2, np.float32), self.Example) 

self.assertEqual(self.Example[2, np.float32], self.Example2F) 

self.assertEqual(set(self.Example.keys()), 

set([(2, np.float32), (2, np.float64), 

(3, np.float32), (3, np.float64)])) 

self.assertEqual(set(self.Example.values()), 

set([self.Example2F, self.Example2D, 

self.Example3F, self.Example3D])) 

self.assertEqual(set(self.Example.items()), 

set([((2, np.float32), self.Example2F), 

((2, np.float64), self.Example2D), 

((3, np.float32), self.Example3F), 

((3, np.float64), self.Example3D)])) 

self.assertEqual(len(self.Example), 4) 

self.assertEqual(set(iter(self.Example)), 

set([(2, np.float32), (2, np.float64), 

(3, np.float32), (3, np.float64)])) 

self.assertEqual(self.Example.get((3, np.float64)), self.Example3D) 

self.assertEqual(self.Example.get((2, np.int32), False), False) 

 

def testRegisterBadKey(self): 

with self.assertRaises(ValueError): 

self.Example.register("F", self.Example2F) 

 

def testRegisterDTypeTwice(self): 

with self.assertRaises(KeyError): 

self.Example.register((2, "F"), self.Example2F) 

self.Example.register((2, "F"), self.Example2D) 

self.assertEqual(len(self.Example), 1) 

 

def testRegisterTemplateTwice(self): 

with self.assertRaises(ValueError): 

self.Example.register((2, "F"), self.Example2F) 

self.Example.register((2, "D"), self.Example2F) 

self.assertEqual(len(self.Example), 1) 

 

 

class TestDefaultMethodCopying(lsst.utils.tests.TestCase): 

""" Test to determine if static and class methods from a class which is 

registered as a default type in a type ABC are properly copied. 

""" 

def setUp(self): 

class Example(metaclass=lsst.utils.TemplateMeta): 

 

TEMPLATE_PARAMS = ("dtype",) 

TEMPLATE_DEFAULTS = (np.float32,) 

 

class ExampleF: 

@staticmethod 

def staticCall(): 

return 6 

 

@classmethod 

def classCall(cls): 

return cls 

 

def regularCall(self): 

return self 

 

class ExampleI: 

@staticmethod 

def notTransferedStaticCall(): 

return 8 

 

@classmethod 

def notTransferedClassCall(cls): 

return cls 

 

# Add in a built in function to ExampleF to mimic how pybind11 treats 

# static methods from c++ 

setattr(ExampleF, 'pow', pow) 

 

Example.register(np.float32, ExampleF) 

Example.register(np.int32, ExampleI) 

self.Example = Example 

self.ExampleF = ExampleF 

self.ExampleI = ExampleI 

 

def testMethodCopyForDefaultType(self): 

# Check that the methods for the default type were transfered and that 

# the regular method was not 

self.assertTrue(hasattr(self.Example, 'staticCall')) 

self.assertTrue(hasattr(self.Example, 'pow')) 

self.assertTrue(hasattr(self.Example, 'classCall')) 

self.assertFalse(hasattr(self.Example, 'regularCall')) 

 

# Verify the default static and class method defaults return the 

# correct values 

self.assertEqual(self.Example.staticCall(), 6) 

self.assertEqual(self.Example.pow(2, 2), 4) 

self.assertIs(self.Example.classCall(), self.ExampleF) 

 

# Verify static and class methods for non default keys are not 

# transfered 

self.assertFalse(hasattr(self.Example, "notTransferedStaticCall")) 

self.assertFalse(hasattr(self.Example, "notTransferedClassCall")) 

 

 

470 ↛ 471line 470 didn't jump to line 471, because the condition on line 470 was never trueif __name__ == "__main__": 

unittest.main()