root / test / ganeti.utils.algo_unittest.py @ 7d444d59
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#!/usr/bin/python
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#
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# Copyright (C) 2011 Google Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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"""Script for testing ganeti.utils.algo"""
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import unittest |
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import random |
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import operator |
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from ganeti import constants |
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from ganeti.utils import algo |
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import testutils |
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class TestUniqueSequence(unittest.TestCase): |
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"""Test case for UniqueSequence"""
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def _test(self, input, expected): |
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self.assertEqual(algo.UniqueSequence(input), expected) |
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def runTest(self): |
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# Ordered input
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self._test([1, 2, 3], [1, 2, 3]) |
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self._test([1, 1, 2, 2, 3, 3], [1, 2, 3]) |
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self._test([1, 2, 2, 3], [1, 2, 3]) |
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self._test([1, 2, 3, 3], [1, 2, 3]) |
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# Unordered input
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self._test([1, 2, 3, 1, 2, 3], [1, 2, 3]) |
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self._test([1, 1, 2, 3, 3, 1, 2], [1, 2, 3]) |
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# Strings
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self._test(["a", "a"], ["a"]) |
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self._test(["a", "b"], ["a", "b"]) |
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self._test(["a", "b", "a"], ["a", "b"]) |
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class TestFindDuplicates(unittest.TestCase): |
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"""Test case for FindDuplicates"""
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def _Test(self, seq, expected): |
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result = algo.FindDuplicates(seq) |
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self.assertEqual(result, algo.UniqueSequence(result))
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self.assertEqual(set(result), set(expected)) |
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def test(self): |
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self._Test([], [])
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self._Test([1, 2, 3], []) |
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self._Test([9, 8, 8, 0, 5, 1, 7, 0, 6, 7], [8, 0, 7]) |
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for exp in [[1, 2, 3], [3, 2, 1]]: |
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self._Test([1, 1, 2, 2, 3, 3], exp) |
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self._Test(["A", "a", "B"], []) |
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self._Test(["a", "A", "a", "B"], ["a"]) |
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self._Test("Hello World out there!", ["e", " ", "o", "r", "t", "l"]) |
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self._Test(self._Gen(False), []) |
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self._Test(self._Gen(True), range(1, 10)) |
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@staticmethod
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def _Gen(dup): |
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for i in range(10): |
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yield i
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if dup:
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for _ in range(i): |
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yield i
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class TestNiceSort(unittest.TestCase): |
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def test(self): |
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self.assertEqual(algo.NiceSort([]), [])
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self.assertEqual(algo.NiceSort(["foo"]), ["foo"]) |
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self.assertEqual(algo.NiceSort(["bar", ""]), ["", "bar"]) |
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self.assertEqual(algo.NiceSort([",", "."]), [",", "."]) |
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self.assertEqual(algo.NiceSort(["0.1", "0.2"]), ["0.1", "0.2"]) |
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self.assertEqual(algo.NiceSort(["0;099", "0,099", "0.1", "0.2"]), |
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["0,099", "0.1", "0.2", "0;099"]) |
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data = ["a0", "a1", "a99", "a20", "a2", "b10", "b70", "b00", "0000"] |
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self.assertEqual(algo.NiceSort(data),
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["0000", "a0", "a1", "a2", "a20", "a99", |
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"b00", "b10", "b70"]) |
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data = ["a0-0", "a1-0", "a99-10", "a20-3", "a0-4", "a99-3", "a09-2", |
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"Z", "a9-1", "A", "b"] |
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self.assertEqual(algo.NiceSort(data),
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["A", "Z", "a0-0", "a0-4", "a1-0", "a9-1", "a09-2", |
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"a20-3", "a99-3", "a99-10", "b"]) |
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self.assertEqual(algo.NiceSort(data, key=str.lower), |
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["A", "a0-0", "a0-4", "a1-0", "a9-1", "a09-2", |
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"a20-3", "a99-3", "a99-10", "b", "Z"]) |
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self.assertEqual(algo.NiceSort(data, key=str.upper), |
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["A", "a0-0", "a0-4", "a1-0", "a9-1", "a09-2", |
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"a20-3", "a99-3", "a99-10", "b", "Z"]) |
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def testLargeA(self): |
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data = [ |
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"Eegah9ei", "xij88brTulHYAv8IEOyU", "3jTwJPtrXOY22bwL2YoW", |
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"Z8Ljf1Pf5eBfNg171wJR", "WvNJd91OoXvLzdEiEXa6", "uHXAyYYftCSG1o7qcCqe", |
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"xpIUJeVT1Rp", "KOt7vn1dWXi", "a07h8feON165N67PIE", "bH4Q7aCu3PUPjK3JtH", |
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"cPRi0lM7HLnSuWA2G9", "KVQqLPDjcPjf8T3oyzjcOsfkb", |
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"guKJkXnkULealVC8CyF1xefym", "pqF8dkU5B1cMnyZuREaSOADYx", |
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] |
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self.assertEqual(algo.NiceSort(data), [
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"3jTwJPtrXOY22bwL2YoW", "Eegah9ei", "KOt7vn1dWXi", |
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"KVQqLPDjcPjf8T3oyzjcOsfkb", "WvNJd91OoXvLzdEiEXa6", |
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"Z8Ljf1Pf5eBfNg171wJR", "a07h8feON165N67PIE", "bH4Q7aCu3PUPjK3JtH", |
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"cPRi0lM7HLnSuWA2G9", "guKJkXnkULealVC8CyF1xefym", |
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"pqF8dkU5B1cMnyZuREaSOADYx", "uHXAyYYftCSG1o7qcCqe", |
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"xij88brTulHYAv8IEOyU", "xpIUJeVT1Rp" |
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]) |
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def testLargeB(self): |
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data = [ |
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"inst-0.0.0.0-0.0.0.0",
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"inst-0.1.0.0-0.0.0.0",
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"inst-0.2.0.0-0.0.0.0",
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"inst-0.2.1.0-0.0.0.0",
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"inst-0.2.2.0-0.0.0.0",
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"inst-0.2.2.0-0.0.0.9",
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"inst-0.2.2.0-0.0.3.9",
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"inst-0.2.2.0-0.2.0.9",
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"inst-0.2.2.0-0.9.0.9",
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"inst-0.20.2.0-0.0.0.0",
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"inst-0.20.2.0-0.9.0.9",
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"inst-10.020.2.0-0.9.0.10",
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"inst-15.020.2.0-0.9.1.00",
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"inst-100.020.2.0-0.9.0.9",
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# Only the last group, not converted to a number anymore, differs
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"inst-100.020.2.0a999",
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"inst-100.020.2.0b000",
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"inst-100.020.2.0c10",
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"inst-100.020.2.0c101",
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"inst-100.020.2.0c2",
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"inst-100.020.2.0c20",
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"inst-100.020.2.0c3",
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"inst-100.020.2.0c39123",
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] |
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rnd = random.Random(16205)
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for _ in range(10): |
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testdata = data[:] |
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rnd.shuffle(testdata) |
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assert testdata != data
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self.assertEqual(algo.NiceSort(testdata), data)
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class _CallCount: |
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def __init__(self, fn): |
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self.count = 0 |
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self.fn = fn
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def __call__(self, *args): |
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self.count += 1 |
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return self.fn(*args) |
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def testKeyfuncA(self): |
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# Generate some random numbers
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rnd = random.Random(21131)
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numbers = [rnd.randint(0, 10000) for _ in range(999)] |
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assert numbers != sorted(numbers) |
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# Convert to hex
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data = [hex(i) for i in numbers] |
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datacopy = data[:] |
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keyfn = self._CallCount(lambda value: str(int(value, 16))) |
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# Sort with key function converting hex to decimal
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result = algo.NiceSort(data, key=keyfn) |
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self.assertEqual([hex(i) for i in sorted(numbers)], result) |
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self.assertEqual(data, datacopy, msg="Input data was modified in NiceSort") |
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self.assertEqual(keyfn.count, len(numbers), |
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msg="Key function was not called once per value")
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class _TestData: |
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def __init__(self, name, value): |
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self.name = name
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self.value = value
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def testKeyfuncB(self): |
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rnd = random.Random(27396)
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data = [] |
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for i in range(123): |
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v1 = rnd.randint(0, 5) |
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v2 = rnd.randint(0, 5) |
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data.append(self._TestData("inst-%s-%s-%s" % (v1, v2, i), |
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(v1, v2, i))) |
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rnd.shuffle(data) |
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assert data != sorted(data, key=operator.attrgetter("name")) |
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keyfn = self._CallCount(operator.attrgetter("name")) |
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# Sort by name
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result = algo.NiceSort(data, key=keyfn) |
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self.assertEqual(result, sorted(data, key=operator.attrgetter("value"))) |
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self.assertEqual(keyfn.count, len(data), |
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msg="Key function was not called once per value")
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class TimeMock: |
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def __init__(self, values): |
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self.values = values
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def __call__(self): |
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return self.values.pop(0) |
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class TestRunningTimeout(unittest.TestCase): |
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def setUp(self): |
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self.time_fn = TimeMock([0.0, 0.3, 4.6, 6.5]) |
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def testRemainingFloat(self): |
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timeout = algo.RunningTimeout(5.0, True, _time_fn=self.time_fn) |
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self.assertAlmostEqual(timeout.Remaining(), 4.7) |
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self.assertAlmostEqual(timeout.Remaining(), 0.4) |
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self.assertAlmostEqual(timeout.Remaining(), -1.5) |
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def testRemaining(self): |
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self.time_fn = TimeMock([0, 2, 4, 5, 6]) |
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timeout = algo.RunningTimeout(5, True, _time_fn=self.time_fn) |
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self.assertEqual(timeout.Remaining(), 3) |
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self.assertEqual(timeout.Remaining(), 1) |
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self.assertEqual(timeout.Remaining(), 0) |
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self.assertEqual(timeout.Remaining(), -1) |
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def testRemainingNonNegative(self): |
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timeout = algo.RunningTimeout(5.0, False, _time_fn=self.time_fn) |
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self.assertAlmostEqual(timeout.Remaining(), 4.7) |
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self.assertAlmostEqual(timeout.Remaining(), 0.4) |
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self.assertEqual(timeout.Remaining(), 0.0) |
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def testNegativeTimeout(self): |
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self.assertRaises(ValueError, algo.RunningTimeout, -1.0, True) |
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if __name__ == "__main__": |
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testutils.GanetiTestProgram() |