mcs/class/Managed.Windows.Forms/Test/System.Windows.Forms/ComboBoxTests.cs

   1 //
   2 // ComboBoxTests.cs: Test cases for ComboBox.
   3 //
   4 // Permission is hereby granted, free of charge, to any person obtaining
   5 // a copy of this software and associated documentation files (the
   6 // "Software"), to deal in the Software without restriction, including
   7 // without limitation the rights to use, copy, modify, merge, publish,
   8 // distribute, sublicense, and/or sell copies of the Software, and to
   9 // permit persons to whom the Software is furnished to do so, subject to
  10 // the following conditions:
  11 //
  12 // The above copyright notice and this permission notice shall be
  13 // included in all copies or substantial portions of the Software.
  14 //
  15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  19 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  20 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  21 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22 //
  23 // Copyright (c) 2006 Matt Hargett
  24 //
  25 // Authors:
  26 //      Matt Hargett  <matt@use.net>
  27 //
  28
  29
  30 using System.Windows.Forms;
  31 using System;
  32 using NUnit.Framework;
  33
  34 [TestFixture]
  35 public class ComboBoxTests
  36 {
  37         ComboBox comboBox;
  38         bool textChanged, layoutUpdated;
  39
  40         [SetUp]
  41         public void SetUp()
  42         {
  43                 comboBox = new ComboBox();
  44                 textChanged = false;
  45                 layoutUpdated = false;
  46                 comboBox.TextChanged += new EventHandler(textChangedEventHandler);
  47                 comboBox.Layout += new LayoutEventHandler(layoutEventHandler);
  48         }
  49
  50         private void textChangedEventHandler(object sender, EventArgs e)
  51         {
  52                 textChanged = true;
  53         }
  54
  55         private void layoutEventHandler(object sender, LayoutEventArgs e)
  56         {
  57                 layoutUpdated = true;
  58         }
  59
  60
  61         [Test]
  62         public void InitialPropertyValues()
  63         {
  64
  65                 Assert.AreEqual(String.Empty, comboBox.Text);
  66                 Assert.AreEqual(-1, comboBox.SelectedIndex);
  67                 Assert.IsNull(comboBox.SelectedItem);
  68                 Assert.AreEqual(121, comboBox.Size.Width);
  69                 //Note: it is environment dependent
  70                 //Assert.AreEqual(20, comboBox.Size.Height);
  71                 Assert.IsFalse(textChanged);
  72                 Assert.IsFalse(layoutUpdated);
  73         }
  74
  75         [Test]
  76         public void SetNegativeOneSelectedIndex()
  77         {
  78                 comboBox.SelectedIndex = -1;
  79                 Assert.AreEqual(String.Empty, comboBox.Text);
  80                 Assert.IsFalse(textChanged);
  81         }
  82
  83         [Test]
  84         public void SetDifferentText()
  85         {
  86                 comboBox.Text = "foooooooooooooooooooooooooo";
  87                 Assert.IsTrue(textChanged);
  88                 Assert.IsFalse(layoutUpdated);
  89         }
  90
  91         [Test]
  92         public void SetSameText()
  93         {
  94                 comboBox.Text = String.Empty;
  95                 Assert.IsFalse(textChanged);
  96                 Assert.IsFalse(layoutUpdated);
  97         }
  98 }