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

   1 using System;
   2 using NUnit.Framework;
   3 using System.Windows.Forms;
   4 using SystemDrawingNamespace = System.Drawing;
   5
   6 namespace MonoTests.System.Windows.Forms {
   7
   8
   9         [TestFixture]
  10         public class TreeNodeTest {
  11
  12                 [Test]
  13                 public void EmptyCtorTest ()
  14                 {
  15                         TreeNode tn = new TreeNode ();
  16                         Assert.AreEqual ("", tn.Text, "#1");
  17                         Assert.AreEqual (0, tn.Nodes.Count, "#2");
  18                         Assert.AreEqual (-1, tn.ImageIndex, "#3");
  19                         Assert.AreEqual (-1, tn.SelectedImageIndex, "#4");
  20
  21                         // Set simple properties
  22                         tn.Text = null;
  23                         Assert.AreEqual ("", tn.Text, "#5");
  24                         tn.ImageIndex = 67;
  25                         Assert.AreEqual (67, tn.ImageIndex, "#6");
  26                         tn.SelectedImageIndex = 99;
  27                         Assert.AreEqual (99, tn.SelectedImageIndex, "#7");
  28                 }
  29
  30                 [Test]
  31                 public void CtorTest () {
  32                         TreeNode tn = new TreeNode ("label1");
  33
  34                         Assert.AreEqual ("label1", tn.Text);
  35                         Assert.AreEqual (0, tn.Nodes.Count);
  36                         Assert.AreEqual (-1, tn.ImageIndex, "II");
  37                         Assert.AreEqual (-1, tn.SelectedImageIndex, "SI");
  38
  39                         Assert.IsNull (tn.FirstNode);
  40                         Assert.IsNull (tn.LastNode);
  41                         Assert.AreEqual ("", new TreeNode (null).Text);
  42                 }
  43
  44                 [Test]
  45                 public void CtorTest2 ()
  46                 {
  47                         TreeNode tn = new TreeNode ("a1", new TreeNode[] { new TreeNode ("aa1"), new TreeNode ("aa2") } );
  48
  49                         Assert.AreEqual ("a1", tn.Text);
  50                         Assert.AreEqual (-1, tn.ImageIndex, "II");
  51                         Assert.AreEqual (-1, tn.SelectedImageIndex, "SI");
  52
  53                         Assert.AreEqual ("aa1", tn.Nodes [0].Text, "#1");
  54                         Assert.AreEqual ("aa2", tn.Nodes [1].Text, "#2");
  55                         Assert.AreSame (tn.FirstNode, tn.Nodes [0], "#3");
  56                         Assert.AreSame (tn.LastNode, tn.Nodes [1], "#4");
  57                 }
  58
  59                 [Test]
  60                 public void CtorTest3 ()
  61                 {
  62                         TreeNode tn = new TreeNode ("a", 5, 9);
  63
  64                         Assert.AreEqual ("a", tn.Text);
  65                         Assert.IsNotNull (tn.Nodes);
  66                         Assert.AreEqual (5, tn.ImageIndex);
  67                         Assert.AreEqual (9, tn.SelectedImageIndex);
  68                         Assert.AreEqual ("", new TreeNode (null, 0, 0).Text);
  69                 }
  70
  71                 [Test, ExpectedException (typeof (ArgumentNullException))]
  72                 public void CtorException1 ()
  73                 {
  74                         new TreeNode ("", 1, 1, null);
  75                 }
  76
  77                 [Test, ExpectedException (typeof (ArgumentNullException))]
  78                 public void CtorException2 () {
  79                         new TreeNode ("tt", null);
  80                 }
  81
  82                 [Test]
  83                 public void Traverse ()
  84                 {
  85                         TreeNode tn_1 = new TreeNode ("1");
  86                         TreeNode tn_2 = new TreeNode ("2");
  87                         TreeNode tn_3 = new TreeNode ("3");
  88                         TreeNode tn = new TreeNode ("lev1");
  89                         tn.Nodes.Add (tn_1);
  90                         Assert.AreSame (tn, tn_1.Parent, "#1");
  91                         Assert.IsNull (tn_1.NextNode, "#2");
  92                         Assert.AreEqual (0, tn_1.Parent.Index, "#3");
  93                         tn.Nodes.Add (tn_2);
  94                         Assert.IsNull (tn_1.NextNode.NextNode, "#33");
  95                         tn.Nodes.Add (tn_3);
  96                         Assert.AreEqual (2, tn_3.Index, "#4");
  97
  98                         Assert.AreEqual (3, tn.Nodes.Count, "#5");
  99                         Assert.AreSame (tn_2, tn_2.NextNode.PrevNode, "#6");
 100                         Assert.IsNull (tn_1.PrevNode, "#7");
 101                 }
 102
 103                 [Test, ExpectedException (typeof (Exception))]
 104                 public void FullPathException ()
 105                 {
 106                         string s = new TreeNode ("").FullPath;
 107                         // Prevent CS0219, will never write anything
 108                         // due to previous statement throwing Exception
 109                         Console.WriteLine(s);
 110                 }
 111
 112                 [Test]
 113                 public void FullPathTest ()
 114                 {
 115                         TreeNode tn_1 = new TreeNode ("A");
 116                         TreeNode tn_2 = new TreeNode ("B");
 117                         tn_2.Nodes.Add (tn_1);
 118
 119                         TreeView tv = new TreeView ();
 120                         tv.Nodes.Add (tn_1);
 121                         tv.Nodes [0].Nodes.Add (tn_2);
 122
 123                         Assert.AreEqual ("A", tn_1.FullPath, "#1");
 124                         Assert.AreEqual ("A", tv.Nodes[0].FullPath, "#2");
 125                         Assert.AreEqual (@"A\B", tn_2.FullPath, "#3");
 126                         tv.PathSeparator = "_separator_";
 127                         Assert.AreEqual ("A_separator_B", tn_2.FullPath, "#4");
 128                 }
 129
 130                 [Test]
 131                 public void CloneTest ()
 132                 {
 133                         TreeNode orig = new TreeNode ("text", 2, 3, new TreeNode [] { new TreeNode ("child", 22, 33) });
 134                         orig.Tag = FlatStyle.Flat;
 135                         orig.Checked = true;
 136                         orig.BackColor = SystemDrawingNamespace.Color.AliceBlue;
 137                         orig.ForeColor = SystemDrawingNamespace.Color.Beige;
 138
 139                         TreeNode clone = (TreeNode)orig.Clone ();
 140                         Assert.AreEqual ("text", clone.Text, "#1");
 141                         Assert.AreEqual (2, clone.ImageIndex, "#2");
 142                         Assert.AreEqual (3, clone.SelectedImageIndex, "#3");
 143                         Assert.AreEqual (1, clone.Nodes.Count, "#4");
 144                         Assert.AreEqual (FlatStyle.Flat, clone.Tag, "#5");
 145                         Assert.IsTrue (clone.Checked, "#6");
 146                         Assert.AreEqual ("child", clone.Nodes [0].Text, "#10");
 147                         Assert.AreEqual (22, clone.Nodes [0].ImageIndex, "#11");
 148                         Assert.AreEqual (SystemDrawingNamespace.Color.AliceBlue, clone.BackColor, "#12");
 149                         Assert.AreEqual (SystemDrawingNamespace.Color.Beige, clone.ForeColor, "#13");
 150                 }
 151
 152                 [Test]
 153                 public void SingleNodeIndexTest ()
 154                 {
 155                         TreeNode tn_1 = new TreeNode ("A");
 156                         Assert.AreEqual (0, tn_1.Index, "#1");
 157                         TreeView tv = new TreeView ();
 158                         tv.Nodes.Add (tn_1);
 159                         Assert.AreEqual (0, tn_1.Index, "#2");
 160                 }
 161         }
 162 }