// (c) Copyright Microsoft Corporation.
// This source is subject to the Microsoft Public License (Ms-PL).
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
// All other rights reserved.
using System.Collections;
using System.Collections.ObjectModel;
using System.Reflection;
using Microsoft.VisualStudio.TestTools.UnitTesting;
namespace System.Windows.Controls.Data.Test{
public partial class DataGrid_DependencyProperties_TestClass
{
[TestMethod]
[Description("Verify Dependency Property: (IEnumerable) DataGrid.ItemsSource.")]
public void ItemsSource()
{
Type propertyType = typeof(IEnumerable);
bool expectGet = true;
bool expectSet = true;
bool hasSideEffects = true;
DataGrid control = new DataGrid();
Assert.IsNotNull(control);
// Verify Dependency Property Property member
FieldInfo fieldInfo = typeof(DataGrid).GetField("ItemsSourceProperty", BindingFlags.Static | BindingFlags.Public);
Assert.AreEqual(typeof(DependencyProperty), fieldInfo.FieldType, "DataGrid.ItemsSourceProperty not expected type 'DependencyProperty'.");
// Verify Dependency Property Property's value type
DependencyProperty property = fieldInfo.GetValue(null) as DependencyProperty;
Assert.IsNotNull(property);
//
// Verify Dependency Property CLR property member
PropertyInfo propertyInfo = typeof(DataGrid).GetProperty("ItemsSource", BindingFlags.Instance | BindingFlags.Public);
Assert.IsNotNull(propertyInfo, "Expected CLR property DataGrid.ItemsSource does not exist.");
Assert.AreEqual(propertyType, propertyInfo.PropertyType, "DataGrid.ItemsSource not expected type 'IEnumerable'.");
// Verify getter/setter access
Assert.AreEqual(expectGet, propertyInfo.CanRead, "Unexpected value for propertyInfo.CanRead.");
Assert.AreEqual(expectSet, propertyInfo.CanWrite, "Unexpected value for propertyInfo.CanWrite.");
// Verify that we set what we get
if (expectSet) // if expectSet == false, this block can be removed
{
ObservableCollection<int> data1 = new ObservableCollection<int> { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
ObservableCollection<string> data2 = new ObservableCollection<string> { "zero", "one", "two" };
ObservableCollection<double> data3 = new ObservableCollection<double> { 0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9 };
control.ItemsSource = data1;
Assert.AreEqual(data1, control.ItemsSource);
control.ItemsSource = data2;
Assert.AreEqual(data2, control.ItemsSource);
control.ItemsSource = data3;
Assert.AreEqual(data3, control.ItemsSource);
}
// Verify Dependency Property callback
if (hasSideEffects)
{
MethodInfo methodInfo = typeof(DataGrid).GetMethod("OnItemsSourcePropertyChanged", BindingFlags.Static | BindingFlags.NonPublic);
Assert.IsNotNull(methodInfo, "Expected DataGrid.ItemsSource to have static, non-public side-effect callback 'OnItemsSourcePropertyChanged'.");
//
}
else
{
MethodInfo methodInfo = typeof(DataGrid).GetMethod("OnItemsSourcePropertyChanged", BindingFlags.Static | BindingFlags.NonPublic);
Assert.IsNull(methodInfo, "Expected DataGrid.ItemsSource NOT to have static side-effect callback 'OnItemsSourcePropertyChanged'.");
}
}
}
}
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