166 строки
4.2 KiB
C#
166 строки
4.2 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using NUnit.Framework;
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using Xamarin.Forms.Core.UnitTests;
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namespace Xamarin.Forms.Pages.UnitTests
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{
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[TestFixture]
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public class DataPageTests
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{
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[SetUp]
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public void Setup ()
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{
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Device.PlatformServices = new MockPlatformServices ();
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}
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[TearDown]
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public void TearDown ()
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{
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Device.PlatformServices = null;
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}
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class TestDataPage : DataPage
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{
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public static readonly BindableProperty NameProperty =
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BindableProperty.Create (nameof (Name), typeof (string), typeof (TestDataPage), null);
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public string Name
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{
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get { return (string)GetValue (NameProperty); }
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set { SetValue (NameProperty, value); }
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}
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public TestDataPage ()
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{
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SetBinding (NameProperty, new DataSourceBinding ("Name"));
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}
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}
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class DataSource : BaseDataSource
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{
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ObservableCollection<IDataItem> data = new ObservableCollection<IDataItem> ();
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protected override Task<IList<IDataItem>> GetRawData ()
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{
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return Task.FromResult<IList<IDataItem>> (data);
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}
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protected override object GetValue (string key)
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{
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var target = data.FirstOrDefault (d => d.Name == key);
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if (target == null)
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throw new KeyNotFoundException ();
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return target.Value;
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}
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protected override bool SetValue (string key, object value)
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{
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var target = data.FirstOrDefault (d => d.Name == key);
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if (target == null)
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data.Add (new DataItem (key, value));
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else if (target.Value == value)
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return false;
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else
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target.Value = value;
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return true;
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}
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}
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[Test]
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public void DefaultBindingsLoad ()
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{
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IDataSource dataSource = new DataSource ();
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dataSource["Name"] = "Jason";
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var detailpage = new TestDataPage ();
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detailpage.Platform = new UnitPlatform ();
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detailpage.DataSource = dataSource;
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Assert.AreEqual ("Jason", detailpage.Name);
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}
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[Test]
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public void RebindingDataSource ()
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{
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IDataSource dataSource = new DataSource ();
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dataSource["UserName"] = "Jason";
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var detailpage = new TestDataPage ();
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detailpage.Platform = new UnitPlatform ();
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detailpage.SetBinding (TestDataPage.NameProperty, new DataSourceBinding ("UserName"));
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detailpage.DataSource = dataSource;
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Assert.AreEqual ("Jason", detailpage.Name);
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}
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[Test]
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public void RebindingDataSourceNotMasked ()
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{
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IDataSource dataSource = new DataSource ();
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dataSource["UserName"] = "Jason";
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var detailpage = new TestDataPage ();
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detailpage.Platform = new UnitPlatform ();
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detailpage.DataSource = dataSource;
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detailpage.SetBinding (TestDataPage.NameProperty, new DataSourceBinding ("UserName"));
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Assert.AreEqual ("Jason", detailpage.Name);
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Assert.AreEqual (1, detailpage.DataSource.MaskedKeys.Count ());
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}
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[Test]
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public void UpdateDataSource ()
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{
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IDataSource dataSource = new DataSource ();
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dataSource["UserName"] = "Jason";
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var detailpage = new TestDataPage ();
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detailpage.Platform = new UnitPlatform ();
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detailpage.SetBinding (TestDataPage.NameProperty, new DataSourceBinding ("UserName"));
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detailpage.DataSource = dataSource;
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dataSource["UserName"] = "Jerry";
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Assert.AreEqual ("Jerry", detailpage.Name);
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}
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[Test]
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public void MaskedItemsNotInData ()
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{
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IDataSource dataSource = new DataSource ();
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dataSource["Name"] = "Jason";
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dataSource["Other"] = "Foo";
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var detailpage = new TestDataPage ();
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detailpage.Platform = new UnitPlatform ();
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detailpage.DataSource = dataSource;
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Assert.AreEqual ("Jason", detailpage.Name);
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Assert.AreEqual (1, detailpage.Data.Count ());
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Assert.AreEqual ("Other", detailpage.Data.First ().Name);
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}
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[Test]
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public void TwoWayDataSourceBinding ()
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{
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IDataSource dataSource = new DataSource ();
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dataSource["UserName"] = "Jason";
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var detailpage = new TestDataPage ();
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detailpage.Platform = new UnitPlatform ();
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detailpage.SetBinding (TestDataPage.NameProperty, new DataSourceBinding ("UserName", BindingMode.TwoWay));
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detailpage.DataSource = dataSource;
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((IElementController)detailpage).SetValueFromRenderer (TestDataPage.NameProperty, "John");
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Assert.AreEqual ("John", dataSource["UserName"]);
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}
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}
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}
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