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-rw-r--r--silx/utils/test/test_proxy.py344
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diff --git a/silx/utils/test/test_proxy.py b/silx/utils/test/test_proxy.py
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-# coding: utf-8
-# /*##########################################################################
-#
-# Copyright (c) 2016-2019 European Synchrotron Radiation Facility
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-#
-# ###########################################################################*/
-"""Tests for weakref module"""
-
-__authors__ = ["V. Valls"]
-__license__ = "MIT"
-__date__ = "02/10/2017"
-
-
-import unittest
-import pickle
-import numpy
-from silx.utils.proxy import Proxy, docstring
-
-
-class Thing(object):
-
- def __init__(self, value):
- self.value = value
-
- def __getitem__(self, selection):
- return selection + 1
-
- def method(self, value):
- return value + 2
-
-
-class InheritedProxy(Proxy):
- """Inheriting the proxy allow to specialisze methods"""
-
- def __init__(self, obj, value):
- Proxy.__init__(self, obj)
- self.value = value + 2
-
- def __getitem__(self, selection):
- return selection + 3
-
- def method(self, value):
- return value + 4
-
-
-class TestProxy(unittest.TestCase):
- """Test that the proxy behave as expected"""
-
- def text_init(self):
- obj = Thing(10)
- p = Proxy(obj)
- self.assertTrue(isinstance(p, Thing))
- self.assertTrue(isinstance(p, Proxy))
-
- # methods and properties
-
- def test_has_special_method(self):
- obj = Thing(10)
- p = Proxy(obj)
- self.assertTrue(hasattr(p, "__getitem__"))
-
- def test_missing_special_method(self):
- obj = Thing(10)
- p = Proxy(obj)
- self.assertFalse(hasattr(p, "__and__"))
-
- def test_method(self):
- obj = Thing(10)
- p = Proxy(obj)
- self.assertEqual(p.method(10), obj.method(10))
-
- def test_property(self):
- obj = Thing(10)
- p = Proxy(obj)
- self.assertEqual(p.value, obj.value)
-
- # special functions
-
- def test_getitem(self):
- obj = Thing(10)
- p = Proxy(obj)
- self.assertEqual(p[10], obj[10])
-
- def test_setitem(self):
- obj = numpy.array([10, 20, 30])
- p = Proxy(obj)
- p[0] = 20
- self.assertEqual(obj[0], 20)
-
- def test_slice(self):
- obj = numpy.arange(20)
- p = Proxy(obj)
- expected = obj[0:10:2]
- result = p[0:10:2]
- self.assertEqual(list(result), list(expected))
-
- # binary comparator methods
-
- def test_lt(self):
- obj = numpy.array([20])
- p = Proxy(obj)
- expected = obj < obj
- result = p < p
- self.assertEqual(result, expected)
-
- # binary numeric methods
-
- def test_add(self):
- obj = numpy.array([20])
- proxy = Proxy(obj)
- expected = obj + obj
- result = proxy + proxy
- self.assertEqual(result, expected)
-
- def test_iadd(self):
- expected = numpy.array([20])
- expected += 10
- obj = numpy.array([20])
- result = Proxy(obj)
- result += 10
- self.assertEqual(result, expected)
-
- def test_radd(self):
- obj = numpy.array([20])
- p = Proxy(obj)
- expected = 10 + obj
- result = 10 + p
- self.assertEqual(result, expected)
-
- # binary logical methods
-
- def test_and(self):
- obj = numpy.array([20])
- p = Proxy(obj)
- expected = obj & obj
- result = p & p
- self.assertEqual(result, expected)
-
- def test_iand(self):
- expected = numpy.array([20])
- expected &= 10
- obj = numpy.array([20])
- result = Proxy(obj)
- result &= 10
- self.assertEqual(result, expected)
-
- def test_rand(self):
- obj = numpy.array([20])
- p = Proxy(obj)
- expected = 10 & obj
- result = 10 & p
- self.assertEqual(result, expected)
-
- # unary methods
-
- def test_neg(self):
- obj = numpy.array([20])
- p = Proxy(obj)
- expected = -obj
- result = -p
- self.assertEqual(result, expected)
-
- def test_round(self):
- obj = 20.5
- p = Proxy(obj)
- expected = round(obj)
- result = round(p)
- self.assertEqual(result, expected)
-
- # cast
-
- def test_bool(self):
- obj = True
- p = Proxy(obj)
- if p:
- pass
- else:
- self.fail()
-
- def test_str(self):
- obj = Thing(10)
- p = Proxy(obj)
- expected = str(obj)
- result = str(p)
- self.assertEqual(result, expected)
-
- def test_repr(self):
- obj = Thing(10)
- p = Proxy(obj)
- expected = repr(obj)
- result = repr(p)
- self.assertEqual(result, expected)
-
- def test_text_bool(self):
- obj = ""
- p = Proxy(obj)
- if p:
- self.fail()
- else:
- pass
-
- def test_text_str(self):
- obj = "a"
- p = Proxy(obj)
- expected = str(obj)
- result = str(p)
- self.assertEqual(result, expected)
-
- def test_text_repr(self):
- obj = "a"
- p = Proxy(obj)
- expected = repr(obj)
- result = repr(p)
- self.assertEqual(result, expected)
-
- def test_hash(self):
- obj = [0, 1, 2]
- p = Proxy(obj)
- with self.assertRaises(TypeError):
- hash(p)
- obj = (0, 1, 2)
- p = Proxy(obj)
- hash(p)
-
-
-class TestInheritedProxy(unittest.TestCase):
- """Test that inheriting the Proxy class behave as expected"""
-
- # methods and properties
-
- def test_method(self):
- obj = Thing(10)
- p = InheritedProxy(obj, 11)
- self.assertEqual(p.method(10), 11 + 3)
-
- def test_property(self):
- obj = Thing(10)
- p = InheritedProxy(obj, 11)
- self.assertEqual(p.value, 11 + 2)
-
- # special functions
-
- def test_getitem(self):
- obj = Thing(10)
- p = InheritedProxy(obj, 11)
- self.assertEqual(p[12], 12 + 3)
-
-
-class TestPickle(unittest.TestCase):
-
- def test_dumps(self):
- obj = Thing(10)
- p = Proxy(obj)
- expected = pickle.dumps(obj)
- result = pickle.dumps(p)
- self.assertEqual(result, expected)
-
- def test_loads(self):
- obj = Thing(10)
- p = Proxy(obj)
- obj2 = pickle.loads(pickle.dumps(p))
- self.assertTrue(isinstance(obj2, Thing))
- self.assertFalse(isinstance(obj2, Proxy))
- self.assertEqual(obj.value, obj2.value)
-
-
-class TestDocstring(unittest.TestCase):
- """Test docstring decorator"""
-
- class Base(object):
- def method(self):
- """Docstring"""
- pass
-
- def test_inheritance(self):
- class Derived(TestDocstring.Base):
- @docstring(TestDocstring.Base)
- def method(self):
- pass
-
- self.assertEqual(Derived.method.__doc__,
- TestDocstring.Base.method.__doc__)
-
- def test_composition(self):
- class Composed(object):
- def __init__(self):
- self._base = TestDocstring.Base()
-
- @docstring(TestDocstring.Base)
- def method(self):
- return self._base.method()
-
- @docstring(TestDocstring.Base.method)
- def renamed(self):
- return self._base.method()
-
- self.assertEqual(Composed.method.__doc__,
- TestDocstring.Base.method.__doc__)
-
- self.assertEqual(Composed.renamed.__doc__,
- TestDocstring.Base.method.__doc__)
-
- def test_function(self):
- def f():
- """Docstring"""
- pass
-
- @docstring(f)
- def g():
- pass
-
- self.assertEqual(f.__doc__, g.__doc__)
-
-
-def suite():
- loadTests = unittest.defaultTestLoader.loadTestsFromTestCase
- test_suite = unittest.TestSuite()
- test_suite.addTest(loadTests(TestProxy))
- test_suite.addTest(loadTests(TestPickle))
- test_suite.addTest(loadTests(TestInheritedProxy))
- test_suite.addTest(loadTests(TestDocstring))
- return test_suite
-
-
-if __name__ == '__main__':
- unittest.main(defaultTest='suite')
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-29 03:03:50 +0000