Python werkzeug.utils.cached_property() Examples

The following are 4 code examples of werkzeug.utils.cached_property(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module werkzeug.utils , or try the search function .
Example #1
Source File: utils.py    From Flask with Apache License 2.0 5 votes vote down vote up 
def test_cached_property(self):
        foo = []
        class A(object):
            def prop(self):
                foo.append(42)
                return 42
            prop = utils.cached_property(prop)

        a = A()
        p = a.prop
        q = a.prop
        self.assert_true(p == q == 42)
        self.assert_equal(foo, [42])

        foo = []
        class A(object):
            def _prop(self):
                foo.append(42)
                return 42
            prop = utils.cached_property(_prop, name='prop')
            del _prop

        a = A()
        p = a.prop
        q = a.prop
        self.assert_true(p == q == 42)
        self.assert_equal(foo, [42])
Example #2
Source File: utils.py    From Flask with Apache License 2.0 5 votes vote down vote up 
def test_cached_property_doc(self):
        @utils.cached_property
        def foo():
            """testing"""
            return 42
        self.assert_equal(foo.__doc__, 'testing')
        self.assert_equal(foo.__name__, 'foo')
        self.assert_equal(foo.__module__, __name__)
Example #3
Source File: utils.py    From Flask with Apache License 2.0 5 votes vote down vote up 
def test_cached_property(self):
        foo = []
        class A(object):
            def prop(self):
                foo.append(42)
                return 42
            prop = utils.cached_property(prop)

        a = A()
        p = a.prop
        q = a.prop
        self.assert_true(p == q == 42)
        self.assert_equal(foo, [42])

        foo = []
        class A(object):
            def _prop(self):
                foo.append(42)
                return 42
            prop = utils.cached_property(_prop, name='prop')
            del _prop

        a = A()
        p = a.prop
        q = a.prop
        self.assert_true(p == q == 42)
        self.assert_equal(foo, [42])
Example #4
Source File: utils.py    From Flask with Apache License 2.0 5 votes vote down vote up 
def test_cached_property_doc(self):
        @utils.cached_property
        def foo():
            """testing"""
            return 42
        self.assert_equal(foo.__doc__, 'testing')
        self.assert_equal(foo.__name__, 'foo')
        self.assert_equal(foo.__module__, __name__)