mirror of https://github.com/Mikaela/Limnoria.git
Initial import
This commit is contained in:
Jeremy Fincher
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#!/usr/bin/env python
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###
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# Copyright (c) 2002, Jeremiah Fincher
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice,
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# this list of conditions, and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions, and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# * Neither the name of the author of this software nor the name of
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# contributors to this software may be used to endorse or promote products
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# derived from this software without specific prior written consent.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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###
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from test import *
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class QueueTest(unittest.TestCase):
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def testNonzero(self):
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q = queue()
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self.failIf(q, 'queue not zero after initialization')
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q.enqueue(1)
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self.failUnless(q, 'queue zero after adding element')
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q.dequeue()
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self.failIf(q, 'queue not zero after dequeue of only element')
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def testLen(self):
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q = queue()
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self.assertEqual(0, len(q), 'queue len not 0 after initialization')
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q.enqueue(1)
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self.assertEqual(1, len(q), 'queue len not 1 after enqueue')
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q.enqueue(2)
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self.assertEqual(2, len(q), 'queue len not 2 after enqueue')
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q.dequeue()
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self.assertEqual(1, len(q), 'queue len not 1 after dequeue')
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q.dequeue()
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self.assertEqual(0, len(q), 'queue len not 0 after dequeue')
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def testEq(self):
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q1 = queue()
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q2 = queue()
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self.failUnless(q1 == q1, 'queue not equal to itself')
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self.failUnless(q2 == q2, 'queue not equal to itself')
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self.failUnless(q1 == q2, 'initialized queues not equal')
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q1.enqueue(1)
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self.failUnless(q1 == q1, 'queue not equal to itself')
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self.failUnless(q2 == q2, 'queue not equal to itself')
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q2.enqueue(1)
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self.failUnless(q1 == q1, 'queue not equal to itself')
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self.failUnless(q2 == q2, 'queue not equal to itself')
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self.failUnless(q1 == q2, 'queues not equal after identical enqueue')
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q1.dequeue()
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self.failUnless(q1 == q1, 'queue not equal to itself')
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self.failUnless(q2 == q2, 'queue not equal to itself')
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self.failIf(q1 == q2, 'queues equal after one dequeue')
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q2.dequeue()
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self.failUnless(q1 == q2, 'queues not equal after both are dequeued')
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self.failUnless(q1 == q1, 'queue not equal to itself')
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self.failUnless(q2 == q2, 'queue not equal to itself')
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def testInit(self):
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self.assertEqual(len(queue()), 0, 'queue len not 0 after init')
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q = queue()
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q.enqueue(1)
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q.enqueue(2)
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q.enqueue(3)
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self.assertEqual(queue(1, 2, 3), q, 'init not equivalent to enqueues')
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q = queue(1, 2, 3)
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self.assertEqual(q.dequeue(), 1, 'values not returned in proper order')
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self.assertEqual(q.dequeue(), 2, 'values not returned in proper order')
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self.assertEqual(q.dequeue(), 3, 'values not returned in proper order')
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def testRepr(self):
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q = queue()
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q.enqueue(1)
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self.assertEqual(q, eval(repr(q)), 'repr doesn\'t eval to same queue')
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q.enqueue('foo')
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self.assertEqual(q, eval(repr(q)), 'repr doesn\'t eval to same queue')
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q.enqueue(None)
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self.assertEqual(q, eval(repr(q)), 'repr doesn\'t eval to same queue')
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q.enqueue(1.0)
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self.assertEqual(q, eval(repr(q)), 'repr doesn\'t eval to same queue')
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q.enqueue([])
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self.assertEqual(q, eval(repr(q)), 'repr doesn\'t eval to same queue')
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q.enqueue(())
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self.assertEqual(q, eval(repr(q)), 'repr doesn\'t eval to same queue')
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q.enqueue([1])
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self.assertEqual(q, eval(repr(q)), 'repr doesn\'t eval to same queue')
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q.enqueue((1,))
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self.assertEqual(q, eval(repr(q)), 'repr doesn\'t eval to same queue')
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def testEnqueueDequeue(self):
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q = queue()
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self.assertRaises(IndexError, q.dequeue)
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q.enqueue(1)
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self.assertEqual(q.dequeue(), 1,
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'first dequeue didn\'t return same as first enqueue')
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q.enqueue(1)
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q.enqueue(2)
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q.enqueue(3)
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self.assertEqual(q.dequeue(), 1)
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self.assertEqual(q.dequeue(), 2)
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self.assertEqual(q.dequeue(), 3)
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def testPeek(self):
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q = queue()
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self.assertRaises(IndexError, q.peek)
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q.enqueue(1)
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self.assertEqual(q.peek(), 1, 'peek didn\'t return first enqueue')
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q.enqueue(2)
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self.assertEqual(q.peek(), 1, 'peek didn\'t return first enqueue')
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q.dequeue()
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self.assertEqual(q.peek(), 2, 'peek didn\'t return second enqueue')
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q.dequeue()
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self.assertRaises(IndexError, q.peek)
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def testContains(self):
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q = queue()
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self.failIf(1 in q, 'empty queue cannot have elements')
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q.enqueue(1)
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self.failUnless(1 in q, 'recent enqueued element not in q')
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q.enqueue(2)
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self.failUnless(1 in q, 'original enqueued element not in q')
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self.failUnless(2 in q, 'second enqueued element not in q')
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q.dequeue()
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self.failIf(1 in q, 'dequeued element in q')
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self.failUnless(2 in q, 'not dequeued element not in q')
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q.dequeue()
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self.failIf(2 in q, 'dequeued element in q')
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def testIter(self):
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q1 = queue(1, 2, 3)
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q2 = queue()
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for i in q1:
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q2.enqueue(i)
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self.assertEqual(q1, q2, 'iterate didn\'t return all elements')
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for _ in queue():
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self.fail('no elements should be in empty queue')
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class FunctionsTest(unittest.TestCase):
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def testCatch(self):
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def f():
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raise Exception
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catch(f)
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def testReviter(self):
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L = range(10)
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revL = list(reviter(L))
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L.reverse()
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self.assertEqual(L, revL, 'reviter didn\'t return reversed list')
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for elt in reviter([]):
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self.fail('reviter caused iteration over empty sequence')
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def testWindow(self):
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L = range(10)
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def wwindow(*args):
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return list(window(*args))
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self.assertEqual(wwindow([], 1), [], 'Empty sequence, empty window')
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self.assertEqual(wwindow([], 2), [], 'Empty sequence, empty window')
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self.assertEqual(wwindow([], 5), [], 'Empty sequence, empty window')
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self.assertEqual(wwindow([], 100), [], 'Empty sequence, empty window')
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self.assertEqual(wwindow(L, 1), [[x] for x in L], 'Window length 1')
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self.assertRaises(ValueError, wwindow, [], 0)
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self.assertRaises(ValueError, wwindow, [], -1)
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def testItersplit(self):
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L = [1, 2, 3] * 3
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s = 'foo bar baz'
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self.assertEqual(list(itersplit(L, lambda x: x == 3)),
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[[1, 2], [1, 2], [1, 2]])
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self.assertEqual(list(itersplit(L, lambda x: x == 3, True)),
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[[1, 2], [1, 2], [1, 2], []])
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self.assertEqual(list(itersplit([], lambda x: x)), [])
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self.assertEqual(list(itersplit(s, lambda c: c.isspace())),
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map(list, s.split()))
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