mono/mcs/class/System.Web/Test/System.Web.UI.WebControls/CheckBoxTest.cs

//
// CheckBoxTest.cs
//	- Unit tests for System.Web.UI.WebControls.CheckBox
//
// Author:
//	Dick Porter  <[email protected]>
//
// Copyright (C) 2005 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

using System;
using System.IO;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Drawing;
using System.Collections.Specialized;

using NUnit.Framework;

namespace MonoTests.System.Web.UI.WebControls {

	public class TestCheckBox : CheckBox {
		public StateBag StateBag {
			get { return base.ViewState; }
		}

		public string Render ()
		{
			HtmlTextWriter writer = new HtmlTextWriter (new StringWriter ());
			base.Render (writer);
			return writer.InnerWriter.ToString ();
		}
		
		public void TrackState () 
		{
			TrackViewState ();
		}
		
		public object SaveState ()
		{
			return SaveViewState ();
		}
			
		public void LoadState (object o)
		{
			LoadViewState (o);
		}

		public void LoadPostbackData (string value)
		{
			NameValueCollection nvc = new NameValueCollection ();
			
			if (value != null)
				nvc.Add ("mykey", value);
			
			((IPostBackDataHandler) this).LoadPostData ("mykey", nvc);
		}
		
	}

	[TestFixture]
	public class CheckBoxTest {

		[Test]
		public void DefaultProperties ()
		{
			TestCheckBox c = new TestCheckBox ();
			
			Assert.AreEqual (0, c.Attributes.Count, "Attributes.Count");

			Assert.IsFalse (c.AutoPostBack, "AutoPostBack");
			Assert.IsFalse (c.Checked, "Checked");
			Assert.AreEqual (String.Empty, c.Text, "Text");
			Assert.AreEqual (TextAlign.Right, c.TextAlign, "TextAlign");
			
			Assert.AreEqual (0, c.Attributes.Count, "Attributes.Count-2");

#if NET_2_0
			Assert.IsFalse (c.CausesValidation, "CausesValidation");
			Assert.AreEqual (String.Empty, c.ValidationGroup, "ValidationGroup");
#endif
		}

		[Test]
		public void NullProperties ()
		{
			TestCheckBox c = new TestCheckBox ();
			
			c.Text = null;
			Assert.AreEqual (String.Empty, c.Text, "Text");
			c.TextAlign = TextAlign.Right;
			Assert.AreEqual (TextAlign.Right, c.TextAlign, "TextAlign");
			c.AutoPostBack = true;
			Assert.IsTrue (c.AutoPostBack, "AutoPostBack");
			c.Checked = true;
			Assert.IsTrue (c.Checked, "Checked");
			
			Assert.AreEqual (0, c.Attributes.Count, "Attributes.Count");
			Assert.AreEqual (3, c.StateBag.Count, "ViewState.Count-1");
		}

		[Test]
		public void CleanProperties ()
		{
			TestCheckBox c = new TestCheckBox ();

			c.Text = "text";
			Assert.AreEqual ("text", c.Text, "Text");
			c.AutoPostBack = true;
			c.TextAlign = TextAlign.Left;
			c.Checked = true;

			Assert.AreEqual (4, c.StateBag.Count, "ViewState.Count");
			Assert.AreEqual (0, c.Attributes.Count, "Attributes.Count");

			c.Text = null;
			c.AutoPostBack = false;
			c.TextAlign = TextAlign.Right;
			c.Checked = false;

			// If Text is null it is removed from the ViewState
			Assert.AreEqual (3, c.StateBag.Count, "ViewState.Count-2");
			// This was failing on mono, because the
			// viewstate is holding an int not an enum.
			// (it passes on ms)
			Assert.AreEqual (TextAlign.Right, c.StateBag["TextAlign"], "TextAlign");
			Assert.AreEqual (0, c.Attributes.Count, "Attributes.Count-2");
		}

		[Test]
		[ExpectedException (typeof (ArgumentOutOfRangeException))]
		public void TextAlign_Invalid ()
		{
			CheckBox c = new CheckBox ();
			c.TextAlign = (TextAlign)Int32.MinValue;
		}

		[Test]
		public void TextAlign_Values ()
		{
			CheckBox c = new CheckBox ();

			foreach (TextAlign ta in Enum.GetValues (typeof (TextAlign))) {
				c.TextAlign = ta;
			}
		}
		
		[Test]
		public void Render ()
		{
			TestCheckBox c = new TestCheckBox ();
			c.ID = "ID";
			c.Text = "Text";

			c.TextAlign = TextAlign.Left;
			Assert.AreEqual (@"<label for=""ID"">Text</label><input id=""ID"" type=""checkbox"" name=""ID"" />", c.Render (), "R#1");
			c.TextAlign = TextAlign.Right;
			Assert.AreEqual (@"<input id=""ID"" type=""checkbox"" name=""ID"" /><label for=""ID"">Text</label>", c.Render (), "R#2");

			c.Attributes ["style"] = "color:red;";
			c.TextAlign = TextAlign.Left;
			Assert.AreEqual (@"<span style=""color:red;""><label for=""ID"">Text</label><input id=""ID"" type=""checkbox"" name=""ID"" /></span>",
					c.Render (), "R#3");
			
			c.TextAlign = TextAlign.Right;
			Assert.AreEqual (@"<span style=""color:red;""><input id=""ID"" type=""checkbox"" name=""ID"" /><label for=""ID"">Text</label></span>",
					c.Render (), "R#4");

			c.Attributes ["style"] = null;

			c.ForeColor = Color.Red;
			c.TextAlign = TextAlign.Left;
			Assert.AreEqual (@"<span style=""color:Red;""><label for=""ID"">Text</label><input id=""ID"" type=""checkbox"" name=""ID"" /></span>",
					c.Render (), "R#4");
			
			c.TextAlign = TextAlign.Right;
			Assert.AreEqual (@"<span style=""color:Red;""><input id=""ID"" type=""checkbox"" name=""ID"" /><label for=""ID"">Text</label></span>",
					c.Render (), "R#6");	
		}

		//
		// Code like
		// if (value == null)
		//    ViewState.Remove ("Text");
		// else
		//    ViewState ["Text"] = value
		// is wrong. We need to store when we are tracking viewstate.
		//
		// Statebag takes care of this behavior, so the code is not needed.
		// 
		[Test]
		public void CheckboxViewstateTextNull ()
		{
			TestCheckBox c = new TestCheckBox ();
			c.Text = "text";
			c.TrackState ();
			c.Text = null;
			Assert.AreEqual ("", c.Text);
			object o = c.SaveState ();
			c = new TestCheckBox ();
			c.Text = "text";
			c.TrackState ();
			c.LoadState (o);
			Assert.AreEqual ("", c.Text);
		}

#if NET_2_0
		[Test]
		public void CheckboxViewstateValidation ()
		{
			// for some reason, MS doesn't save the validation
			// properties to the viewstate for the Checkbox
			// control.  why not?
			TestCheckBox o = new TestCheckBox ();
			o.ValidationGroup = "VG1";
			o.CausesValidation = true;
			o.TrackState ();
			Assert.AreEqual ("VG1", o.ValidationGroup, "V1");
			Assert.IsTrue (o.CausesValidation, "V2");
			object state = o.SaveState ();
			TestCheckBox copy = new TestCheckBox ();
			copy.LoadState (state);
			Assert.AreEqual ("", copy.ValidationGroup, "V3");
			Assert.IsFalse (copy.CausesValidation, "V4");
		}
#endif
	}
}