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 using System;
  30 using System.Windows.Forms;
  31
  32 using NUnit.Framework;
  33
  34 namespace MonoTests.System.Windows.Forms
  35 {
  36         [TestFixture]
  37         public class ComboBoxTests
  38         {
  39                 ComboBox comboBox;
  40                 bool textChanged, layoutUpdated;
  41
  42                 [SetUp]
  43                 public void SetUp ()
  44                 {
  45                         comboBox = new ComboBox ();
  46                         textChanged = false;
  47                         layoutUpdated = false;
  48                         comboBox.TextChanged += new EventHandler (textChangedEventHandler);
  49                         comboBox.Layout += new LayoutEventHandler (layoutEventHandler);
  50                 }
  51
  52                 private void textChangedEventHandler (object sender, EventArgs e)
  53                 {
  54                         textChanged = true;
  55                 }
  56
  57                 private void layoutEventHandler (object sender, LayoutEventArgs e)
  58                 {
  59                         layoutUpdated = true;
  60                 }
  61
  62                 [Test]
  63                 public void InitialPropertyValues ()
  64                 {
  65
  66                         Assert.AreEqual (String.Empty, comboBox.Text);
  67                         Assert.AreEqual (-1, comboBox.SelectedIndex);
  68                         Assert.IsNull (comboBox.SelectedItem);
  69                         Assert.AreEqual (121, comboBox.Size.Width);
  70                         //Note: it is environment dependent
  71                         //Assert.AreEqual(20, comboBox.Size.Height);
  72                         Assert.IsFalse (textChanged);
  73                         Assert.IsFalse (layoutUpdated);
  74                 }
  75
  76                 [Test]
  77                 public void SetNegativeOneSelectedIndex ()
  78                 {
  79                         comboBox.SelectedIndex = -1;
  80                         Assert.AreEqual (String.Empty, comboBox.Text);
  81                         Assert.IsFalse (textChanged);
  82                 }
  83
  84                 [Test]
  85                 public void SetDifferentText ()
  86                 {
  87                         comboBox.Text = "foooooooooooooooooooooooooo";
  88                         Assert.IsTrue (textChanged);
  89                         Assert.IsFalse (layoutUpdated);
  90                 }
  91
  92                 [Test]
  93                 public void SetSameText ()
  94                 {
  95                         comboBox.Text = String.Empty;
  96                         Assert.IsFalse (textChanged);
  97                         Assert.IsFalse (layoutUpdated);
  98                 }
  99
 100                 [Test] // bug #79812
 101                 public void Add_Item_NonString ()
 102                 {
 103                         comboBox.Sorted = true;
 104                         comboBox.Items.Add (new Person ("B"));
 105                         comboBox.Items.Add (new Person ("A"));
 106                         comboBox.Items.Add (new Person ("C"));
 107                         Assert.AreEqual (string.Empty, comboBox.Text, "#1");
 108                         comboBox.SelectedIndex = 0;
 109                         Assert.AreEqual ("A", comboBox.Text, "#2");
 110                         comboBox.SelectedIndex = 2;
 111                         Assert.AreEqual ("C", comboBox.Text, "#3");
 112                 }
 113
 114                 [Test]
 115                 [Category ("NotWorking")]
 116                 public void SelectedText ()
 117                 {
 118                         Form form = new Form ();
 119                         form.ShowInTaskbar = false;
 120                         form.Visible = false;
 121                         form.Controls.Add (comboBox);
 122
 123                         comboBox.Items.Add ("Bar");
 124                         comboBox.Items.Add ("Foo");
 125                         Assert.AreEqual (-1, comboBox.SelectedIndex, "#A1");
 126                         Assert.AreEqual (string.Empty, comboBox.SelectedText, "#A2");
 127                         comboBox.SelectedIndex = 0;
 128                         Assert.AreEqual (0, comboBox.SelectedIndex, "#B1");
 129                         Assert.AreEqual (string.Empty, comboBox.SelectedText, "#B2");
 130                         form.Show ();
 131                         Assert.AreEqual (0, comboBox.SelectedIndex, "#C1");
 132                         Assert.AreEqual ("Bar", comboBox.SelectedText, "#C2");
 133                         comboBox.SelectedIndex = 1;
 134                         Assert.AreEqual (1, comboBox.SelectedIndex, "#D1");
 135                         Assert.AreEqual (string.Empty, comboBox.SelectedText, "#D2");
 136                         comboBox.SelectedText = "Ba";
 137                         Assert.AreEqual (-1, comboBox.SelectedIndex, "#E1");
 138                         Assert.AreEqual (string.Empty, comboBox.SelectedText, "#E2");
 139                         comboBox.SelectedText = "Bar";
 140                         Assert.AreEqual (-1, comboBox.SelectedIndex, "#F1");
 141                         Assert.AreEqual (string.Empty, comboBox.SelectedText, "#F2");
 142                         comboBox.SelectedText = "doesnotexist";
 143                         Assert.AreEqual (-1, comboBox.SelectedIndex, "#G1");
 144                         Assert.AreEqual (string.Empty, comboBox.SelectedText, "#G2");
 145                         comboBox.SelectedIndex = 0;
 146                         Assert.AreEqual (0, comboBox.SelectedIndex, "#H1");
 147                         Assert.AreEqual (string.Empty, comboBox.SelectedText, "#H2");
 148                         comboBox.SelectedText = "Foo";
 149                         Assert.AreEqual (-1, comboBox.SelectedIndex, "#I1");
 150                         Assert.AreEqual (string.Empty, comboBox.SelectedText, "#I2");
 151                 }
 152
 153                 public class Person
 154                 {
 155                         private readonly string _name;
 156
 157                         public Person (string name)
 158                         {
 159                                 _name = name;
 160                         }
 161
 162                         public string Name
 163                         {
 164                                 get
 165                                 {
 166                                         return _name;
 167                                 }
 168                         }
 169
 170                         public override string ToString ()
 171                         {
 172                                 return Name;
 173                         }
 174                 }
 175         }
 176 }