mcs/class/System.Drawing/Test/System.Drawing.Drawing2D/TestColorBlend.cs

   1 //
   2 // Tests for System.Drawing.Drawing2D.ColorBlend.cs
   3 //
   4 // Authors:
   5 //      Ravindra (rkumar@novell.com)
   6 //      Sebastien Pouliot  <sebastien@ximian.com>
   7 //
   8 // Copyright (C) 2004,2006 Novell, Inc (http://www.novell.com)
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29
  30 using NUnit.Framework;
  31 using System;
  32 using System.Drawing;
  33 using System.Drawing.Drawing2D;
  34 using System.Security.Permissions;
  35
  36 namespace MonoTests.System.Drawing.Drawing2D
  37 {
  38         [TestFixture]
  39         [SecurityPermission (SecurityAction.Deny, UnmanagedCode = true)]
  40         public class ColorBlendTest {
  41
  42                 [Test]
  43                 public void TestConstructors ()
  44                 {
  45                         ColorBlend cb1 = new ColorBlend (1);
  46                         Assert.AreEqual (1, cb1.Colors.Length, "Colors");
  47                         Assert.AreEqual (1, cb1.Positions.Length, "Positions");
  48                 }
  49
  50                 [Test]
  51                 public void TestProperties ()
  52                 {
  53                         ColorBlend cb1 = new ColorBlend (1);
  54                         float[] positions = {0.0F, 0.5F, 1.0F};
  55                         Color[] colors = {Color.Red, Color.White, Color.Black};
  56                         cb1.Colors = colors;
  57                         cb1.Positions = positions;
  58
  59                         // size match
  60                         Assert.AreEqual (colors[0], cb1.Colors[0], "c0");
  61                         Assert.AreEqual (colors[1], cb1.Colors[1], "c1");
  62                         Assert.AreEqual (colors[2], cb1.Colors[2], "c2");
  63                         Assert.AreEqual (positions[0], cb1.Positions[0], "p0");
  64                         Assert.AreEqual (positions[1], cb1.Positions[1], "p1");
  65                         Assert.AreEqual (positions[2], cb1.Positions[2], "p2");
  66                 }
  67
  68                 [Test]
  69                 public void ColorBlend_Empty ()
  70                 {
  71                         ColorBlend cb = new ColorBlend ();
  72                         Assert.AreEqual (1, cb.Colors.Length, "Colors");
  73                         Assert.IsTrue (cb.Colors[0].IsEmpty, "C0");
  74                         Assert.AreEqual (1, cb.Positions.Length, "Positions");
  75                         Assert.AreEqual (0f, cb.Positions[0], "P0");
  76                 }
  77
  78                 [Test]
  79                 public void ColorBlend_Zero ()
  80                 {
  81                         ColorBlend cb = new ColorBlend (0);
  82                         Assert.AreEqual (0, cb.Colors.Length, "Colors");
  83                         Assert.AreEqual (0, cb.Positions.Length, "Positions");
  84                 }
  85
  86                 [Test]
  87                 public void MismatchSizes ()
  88                 {
  89                         ColorBlend cb = new ColorBlend ();
  90
  91                         cb.Colors = new Color[16];
  92                         Assert.AreEqual (16, cb.Colors.Length, "Colors");
  93
  94                         cb.Positions = new float[1];
  95                         Assert.AreEqual (1, cb.Positions.Length, "Positions");
  96                 }
  97
  98                 [Test]
  99                 [ExpectedException (typeof (OverflowException))]
 100                 public void ColorBlend_Negative ()
 101                 {
 102                         ColorBlend cb = new ColorBlend (-1);
 103                 }
 104
 105                 [Test]
 106                 public void ColorBlend_Lots ()
 107                 {
 108                         ColorBlend cb = new ColorBlend (1000);
 109                         Assert.AreEqual (1000, cb.Colors.Length, "Colors");
 110                         Assert.AreEqual (1000, cb.Positions.Length, "Positions");
 111                 }
 112         }
 113 }