mcs/class/Mono.CodeContracts/Test/Mono.CodeContracts.Static/DisIntervalTests.cs

   1 //
   2 // DisIntervalTests.cs
   3 //
   4 // Authors:
   5 //      Alexander Chebaturkin (chebaturkin@gmail.com)
   6 //
   7 // Copyright (C) 2012 Alexander Chebaturkin
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 using Mono.CodeContracts.Static.Analysis.Numerical;
  30 using Mono.CodeContracts.Static.DataStructures;
  31
  32 using NUnit.Framework;
  33
  34 namespace MonoTests.Mono.CodeContracts {
  35         [TestFixture]
  36         class DisIntervalTests : DomainTestBase<DisInterval> {
  37                 protected override DisInterval Top { get { return DisInterval.TopValue; } }
  38                 protected override DisInterval Bottom { get { return DisInterval.BottomValue; } }
  39                 protected override DisInterval Normal { get { return DisInterval.For (this._1__2); } }
  40
  41                 readonly Interval _0__1 = Interval.For (0, 1);
  42                 readonly Interval _0__4 = Interval.For (0, 4);
  43                 readonly Interval _1__2 = Interval.For (1, 2);
  44                 readonly Interval _1__3 = Interval.For (1, 3);
  45                 readonly Interval _1__4 = Interval.For (1, 4);
  46                 readonly Interval _1__5 = Interval.For (1, 5);
  47                 readonly Interval _2__4 = Interval.For (2, 4);
  48                 readonly Interval _2__5 = Interval.For (2, 5);
  49                 readonly Interval _3__4 = Interval.For (3, 4);
  50
  51                 static Interval JoinAll (params Interval[] intervals)
  52                 {
  53                         return DisInterval.JoinAll (Sequence<Interval>.From (intervals));
  54                 }
  55
  56                 [Test]
  57                 public void ForSingleInterval ()
  58                 {
  59                         DisInterval disInterval = DisInterval.For (this._1__2);
  60
  61                         Assert.That (disInterval.AsInterval, Is.EqualTo (this._1__2));
  62                 }
  63
  64                 [Test]
  65                 public void JoinAllForIntervals ()
  66                 {
  67                         Assert.That (JoinAll (this._1__2), Is.EqualTo (this._1__2));
  68                         Assert.That (JoinAll (this._1__2, this._3__4), Is.EqualTo (this._1__4));
  69                         Assert.That (JoinAll (), Is.EqualTo (Interval.TopValue));
  70                 }
  71
  72                 [Test]
  73                 public void NormalizeTests ()
  74                 {
  75                         bool isBottom;
  76                         Assert.AreEqual (
  77                                 DisInterval.Normalize (Sequence<Interval>.From (this._1__2, this._3__4), out isBottom),
  78                                 Sequence<Interval>.From (this._1__4));
  79
  80                         Assert.AreEqual (
  81                                 DisInterval.Normalize (Sequence<Interval>.From (this._1__4, this._1__2), out isBottom),
  82                                 Sequence<Interval>.From (this._1__4));
  83
  84                         Assert.AreEqual (
  85                                 DisInterval.Normalize (Sequence<Interval>.From (this._1__2, this._1__4), out isBottom),
  86                                 Sequence<Interval>.From (this._1__4));
  87
  88                         Assert.AreEqual (
  89                                 DisInterval.Normalize (Sequence<Interval>.From (this._1__4, this._2__4), out isBottom),
  90                                 Sequence<Interval>.From (this._1__4));
  91
  92                         Assert.AreEqual (
  93                                 DisInterval.Normalize (Sequence<Interval>.From (this._1__3, this._2__5), out isBottom),
  94                                 Sequence<Interval>.From (this._1__5));
  95
  96                         Assert.AreEqual (
  97                                 DisInterval.Normalize (Sequence<Interval>.From (Interval.BottomValue, Interval.BottomValue), out isBottom),
  98                                 Sequence<Interval>.Empty);
  99                         Assert.IsTrue (isBottom);
 100
 101                         Assert.AreEqual (
 102                                 DisInterval.Normalize (Sequence<Interval>.From (Interval.BottomValue), out isBottom),
 103                                 Sequence<Interval>.Empty);
 104                         Assert.IsTrue (isBottom);
 105                 }
 106
 107                 [Test]
 108                 public void ShouldHaveAddOperation ()
 109                 {
 110                         Assert.That (DisInterval.For (this._1__2) + DisInterval.For (this._3__4),
 111                                      Is.EqualTo (DisInterval.For (Interval.For (4, 6))));
 112                 }
 113
 114                 [Test]
 115                 public void ShouldHaveJoinOperation ()
 116                 {
 117                         DisInterval left = DisInterval.For (this._0__1).Join (DisInterval.For (this._3__4));
 118                         DisInterval right = DisInterval.For (this._1__2).Join (DisInterval.For (this._1__4));
 119                         Assert.That (left.Join (right), Is.EqualTo (DisInterval.For (this._0__4)));
 120                 }
 121
 122                 [Test]
 123                 public void ShouldHaveMeetOperation ()
 124                 {
 125                         Assert.That (DisInterval.For (this._1__4).Meet (DisInterval.For (this._1__2)),
 126                                      Is.EqualTo (DisInterval.For (this._1__2)));
 127                 }
 128
 129                 [Test]
 130                 public void ShouldHaveSubOperation ()
 131                 {
 132                         Assert.That (DisInterval.For (this._1__2) - DisInterval.For (this._3__4),
 133                                      Is.EqualTo (DisInterval.For (Interval.For (-3, -1))));
 134                 }
 135         }
 136 }