1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
|
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using NUnit.Framework;
using Xamarin.Forms.Core.UnitTests;
namespace Xamarin.Forms.Pages.UnitTests
{
[TestFixture]
public class DataPageTests
{
[SetUp]
public void Setup ()
{
Device.PlatformServices = new MockPlatformServices ();
}
[TearDown]
public void TearDown ()
{
Device.PlatformServices = null;
}
class TestDataPage : DataPage
{
public static readonly BindableProperty NameProperty =
BindableProperty.Create (nameof (Name), typeof (string), typeof (TestDataPage), null);
public string Name
{
get { return (string)GetValue (NameProperty); }
set { SetValue (NameProperty, value); }
}
public TestDataPage ()
{
SetBinding (NameProperty, new DataSourceBinding ("Name"));
}
}
class DataSource : BaseDataSource
{
ObservableCollection<IDataItem> data = new ObservableCollection<IDataItem> ();
protected override Task<IList<IDataItem>> GetRawData ()
{
return Task.FromResult<IList<IDataItem>> (data);
}
protected override object GetValue (string key)
{
var target = data.FirstOrDefault (d => d.Name == key);
if (target == null)
throw new KeyNotFoundException ();
return target.Value;
}
protected override bool SetValue (string key, object value)
{
var target = data.FirstOrDefault (d => d.Name == key);
if (target == null)
data.Add (new DataItem (key, value));
else if (target.Value == value)
return false;
else
target.Value = value;
return true;
}
}
[Test]
public void DefaultBindingsLoad ()
{
IDataSource dataSource = new DataSource ();
dataSource["Name"] = "Jason";
var detailpage = new TestDataPage ();
detailpage.Platform = new UnitPlatform ();
detailpage.DataSource = dataSource;
Assert.AreEqual ("Jason", detailpage.Name);
}
[Test]
public void RebindingDataSource ()
{
IDataSource dataSource = new DataSource ();
dataSource["UserName"] = "Jason";
var detailpage = new TestDataPage ();
detailpage.Platform = new UnitPlatform ();
detailpage.SetBinding (TestDataPage.NameProperty, new DataSourceBinding ("UserName"));
detailpage.DataSource = dataSource;
Assert.AreEqual ("Jason", detailpage.Name);
}
[Test]
public void RebindingDataSourceNotMasked ()
{
IDataSource dataSource = new DataSource ();
dataSource["UserName"] = "Jason";
var detailpage = new TestDataPage ();
detailpage.Platform = new UnitPlatform ();
detailpage.DataSource = dataSource;
detailpage.SetBinding (TestDataPage.NameProperty, new DataSourceBinding ("UserName"));
Assert.AreEqual ("Jason", detailpage.Name);
Assert.AreEqual (1, detailpage.DataSource.MaskedKeys.Count ());
}
[Test]
public void UpdateDataSource ()
{
IDataSource dataSource = new DataSource ();
dataSource["UserName"] = "Jason";
var detailpage = new TestDataPage ();
detailpage.Platform = new UnitPlatform ();
detailpage.SetBinding (TestDataPage.NameProperty, new DataSourceBinding ("UserName"));
detailpage.DataSource = dataSource;
dataSource["UserName"] = "Jerry";
Assert.AreEqual ("Jerry", detailpage.Name);
}
[Test]
public void MaskedItemsNotInData ()
{
IDataSource dataSource = new DataSource ();
dataSource["Name"] = "Jason";
dataSource["Other"] = "Foo";
var detailpage = new TestDataPage ();
detailpage.Platform = new UnitPlatform ();
detailpage.DataSource = dataSource;
Assert.AreEqual ("Jason", detailpage.Name);
Assert.AreEqual (1, detailpage.Data.Count ());
Assert.AreEqual ("Other", detailpage.Data.First ().Name);
}
[Test]
public void TwoWayDataSourceBinding ()
{
IDataSource dataSource = new DataSource ();
dataSource["UserName"] = "Jason";
var detailpage = new TestDataPage ();
detailpage.Platform = new UnitPlatform ();
detailpage.SetBinding (TestDataPage.NameProperty, new DataSourceBinding ("UserName", BindingMode.TwoWay));
detailpage.DataSource = dataSource;
((IElementController)detailpage).SetValueFromRenderer (TestDataPage.NameProperty, "John");
Assert.AreEqual ("John", dataSource["UserName"]);
}
}
}
|
