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98 lines
3.3 KiB
98 lines
3.3 KiB
// Copyright (c) 2014 Daniel Grunwald
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of this
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// software and associated documentation files (the "Software"), to deal in the Software
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// without restriction, including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
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// to whom the Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all copies or
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// substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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using ICSharpCode.Decompiler.Util;
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using NUnit.Framework;
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namespace ICSharpCode.Decompiler.Tests.Util
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{
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public class IntervalTests
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{
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[Test]
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public void DefaultIsEmpty()
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{
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Assert.IsTrue(default(Interval).IsEmpty);
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Assert.IsFalse(default(Interval).Contains(-1));
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Assert.IsFalse(default(Interval).Contains(0));
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Assert.IsFalse(default(Interval).Contains(1));
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}
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[Test]
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public void EmptyAt1()
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{
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Interval i = new Interval(1, 1);
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Assert.IsTrue(default(Interval).IsEmpty);
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Assert.IsFalse(default(Interval).Contains(-1));
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Assert.IsFalse(default(Interval).Contains(0));
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Assert.IsFalse(default(Interval).Contains(1));
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Assert.IsFalse(default(Interval).Contains(2));
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}
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[Test]
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public void OneToThree()
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{
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Interval i = new Interval(1, 3);
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Assert.IsFalse(i.IsEmpty);
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Assert.IsFalse(i.Contains(0));
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Assert.IsTrue(i.Contains(1));
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Assert.IsTrue(i.Contains(2));
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Assert.IsFalse(i.Contains(3));
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}
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[Test]
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public void FullInterval()
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{
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Interval full = new Interval(int.MinValue, int.MinValue);
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Assert.IsFalse(full.IsEmpty);
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Assert.IsTrue(full.Contains(int.MinValue));
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Assert.IsTrue(full.Contains(0));
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Assert.IsTrue(full.Contains(int.MaxValue));
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}
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[Test]
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public void NonNegativeIntegers()
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{
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Interval i = new Interval(0, int.MinValue);
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Assert.IsFalse(i.IsEmpty);
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Assert.IsTrue(i.Contains(0));
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Assert.IsTrue(i.Contains(1000));
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Assert.IsTrue(i.Contains(int.MaxValue));
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Assert.IsFalse(i.Contains(-1));
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Assert.IsFalse(i.Contains(-1000));
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Assert.IsFalse(i.Contains(int.MinValue));
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}
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[Test]
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public void Intersection()
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{
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Interval empty = new Interval(0, 0);
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Interval emptyAtOne = new Interval(0, 0);
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Interval zero = new Interval(0, 1);
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Interval full = new Interval(int.MinValue, int.MinValue);
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Interval nonneg = new Interval(0, int.MinValue);
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Interval nonpos = new Interval(int.MinValue, 1);
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Interval maxval = new Interval(int.MaxValue, int.MinValue);
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Assert.AreEqual(nonneg, full.Intersect(nonneg));
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Assert.AreEqual(nonneg, nonneg.Intersect(full));
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Assert.AreEqual(zero, nonneg.Intersect(zero));
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Assert.AreEqual(zero, nonneg.Intersect(nonpos));
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Assert.AreEqual(maxval, nonneg.Intersect(maxval));
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Assert.AreEqual(empty, nonpos.Intersect(maxval));
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}
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}
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}
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