Steven Kirk
6 years ago
committed by
GitHub
GitHub
22 changed files with 561 additions and 270 deletions
@ -1,28 +0,0 @@ |
|||
// Copyright (c) The Avalonia Project. All rights reserved.
|
|||
// Licensed under the MIT license. See licence.md file in the project root for full license information.
|
|||
|
|||
namespace Avalonia |
|||
{ |
|||
/// <summary>
|
|||
/// Represents boxed value of type <typeparamref name="T"/>.
|
|||
/// </summary>
|
|||
/// <typeparam name="T">Type of stored value.</typeparam>
|
|||
internal readonly struct BoxedValue<T> |
|||
{ |
|||
public BoxedValue(T value) |
|||
{ |
|||
Boxed = value; |
|||
Typed = value; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Boxed value.
|
|||
/// </summary>
|
|||
public object Boxed { get; } |
|||
|
|||
/// <summary>
|
|||
/// Typed value.
|
|||
/// </summary>
|
|||
public T Typed { get; } |
|||
} |
|||
} |
|||
@ -0,0 +1,155 @@ |
|||
// Copyright (c) The Avalonia Project. All rights reserved.
|
|||
// Licensed under the MIT license. See licence.md file in the project root for full license information.
|
|||
|
|||
using System; |
|||
using System.Reactive.Subjects; |
|||
using Avalonia.Data; |
|||
using Xunit; |
|||
|
|||
namespace Avalonia.Base.UnitTests |
|||
{ |
|||
public class AvaloniaObjectTests_Coercion |
|||
{ |
|||
[Fact] |
|||
public void Coerces_Set_Value() |
|||
{ |
|||
var target = new Class1(); |
|||
|
|||
target.Foo = 150; |
|||
|
|||
Assert.Equal(100, target.Foo); |
|||
} |
|||
|
|||
[Fact] |
|||
public void Coerces_Set_Value_Attached() |
|||
{ |
|||
var target = new Class1(); |
|||
|
|||
target.SetValue(Class1.AttachedProperty, 150); |
|||
|
|||
Assert.Equal(100, target.GetValue(Class1.AttachedProperty)); |
|||
} |
|||
|
|||
[Fact] |
|||
public void Coerces_Bound_Value() |
|||
{ |
|||
var target = new Class1(); |
|||
var source = new Subject<BindingValue<int>>(); |
|||
|
|||
target.Bind(Class1.FooProperty, source); |
|||
source.OnNext(150); |
|||
|
|||
Assert.Equal(100, target.Foo); |
|||
} |
|||
|
|||
[Fact] |
|||
public void CoerceValue_Updates_Value() |
|||
{ |
|||
var target = new Class1 { Foo = 99 }; |
|||
|
|||
Assert.Equal(99, target.Foo); |
|||
|
|||
target.MaxFoo = 50; |
|||
target.CoerceValue(Class1.FooProperty); |
|||
|
|||
Assert.Equal(50, target.Foo); |
|||
} |
|||
|
|||
[Fact] |
|||
public void Coerced_Value_Can_Be_Restored_If_Limit_Changed() |
|||
{ |
|||
var target = new Class1(); |
|||
|
|||
target.Foo = 150; |
|||
Assert.Equal(100, target.Foo); |
|||
|
|||
target.MaxFoo = 200; |
|||
target.CoerceValue(Class1.FooProperty); |
|||
|
|||
Assert.Equal(150, target.Foo); |
|||
} |
|||
|
|||
[Fact] |
|||
public void Coerced_Value_Can_Be_Restored_From_Previously_Active_Binding() |
|||
{ |
|||
var target = new Class1(); |
|||
var source1 = new Subject<BindingValue<int>>(); |
|||
var source2 = new Subject<BindingValue<int>>(); |
|||
|
|||
target.Bind(Class1.FooProperty, source1); |
|||
source1.OnNext(150); |
|||
|
|||
target.Bind(Class1.FooProperty, source2); |
|||
source2.OnNext(160); |
|||
|
|||
Assert.Equal(100, target.Foo); |
|||
|
|||
target.MaxFoo = 200; |
|||
source2.OnCompleted(); |
|||
|
|||
Assert.Equal(150, target.Foo); |
|||
} |
|||
|
|||
[Fact] |
|||
public void Coercion_Can_Be_Overridden() |
|||
{ |
|||
var target = new Class2(); |
|||
|
|||
target.Foo = 150; |
|||
|
|||
Assert.Equal(-150, target.Foo); |
|||
} |
|||
|
|||
private class Class1 : AvaloniaObject |
|||
{ |
|||
public static readonly StyledProperty<int> FooProperty = |
|||
AvaloniaProperty.Register<Class1, int>( |
|||
"Qux", |
|||
defaultValue: 11, |
|||
coerce: CoerceFoo); |
|||
|
|||
public static readonly AttachedProperty<int> AttachedProperty = |
|||
AvaloniaProperty.RegisterAttached<Class1, Class1, int>( |
|||
"Attached", |
|||
defaultValue: 11, |
|||
coerce: CoerceFoo); |
|||
|
|||
public int Foo |
|||
{ |
|||
get => GetValue(FooProperty); |
|||
set => SetValue(FooProperty, value); |
|||
} |
|||
|
|||
public int MaxFoo { get; set; } = 100; |
|||
|
|||
public static int CoerceFoo(IAvaloniaObject instance, int value) |
|||
{ |
|||
return Math.Min(((Class1)instance).MaxFoo, value); |
|||
} |
|||
} |
|||
|
|||
private class Class2 : AvaloniaObject |
|||
{ |
|||
public static readonly StyledProperty<int> FooProperty = |
|||
Class1.FooProperty.AddOwner<Class2>(); |
|||
|
|||
static Class2() |
|||
{ |
|||
FooProperty.OverrideMetadata<Class2>( |
|||
new StyledPropertyMetadata<int>( |
|||
coerce: CoerceFoo)); |
|||
} |
|||
|
|||
public int Foo |
|||
{ |
|||
get => GetValue(FooProperty); |
|||
set => SetValue(FooProperty, value); |
|||
} |
|||
|
|||
public static int CoerceFoo(IAvaloniaObject instance, int value) |
|||
{ |
|||
return -value; |
|||
} |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,97 @@ |
|||
// Copyright (c) The Avalonia Project. All rights reserved.
|
|||
// Licensed under the MIT license. See licence.md file in the project root for full license information.
|
|||
|
|||
using System; |
|||
using System.Reactive.Subjects; |
|||
using Avalonia.Controls; |
|||
using Xunit; |
|||
|
|||
namespace Avalonia.Base.UnitTests |
|||
{ |
|||
public class AvaloniaObjectTests_Validation |
|||
{ |
|||
[Fact] |
|||
public void Registration_Throws_If_DefaultValue_Fails_Validation() |
|||
{ |
|||
Assert.Throws<ArgumentException>(() => |
|||
new StyledProperty<int>( |
|||
"BadDefault", |
|||
typeof(Class1), |
|||
new StyledPropertyMetadata<int>(101), |
|||
validate: Class1.ValidateFoo)); |
|||
} |
|||
|
|||
[Fact] |
|||
public void Metadata_Override_Throws_If_DefaultValue_Fails_Validation() |
|||
{ |
|||
Assert.Throws<ArgumentException>(() => Class1.FooProperty.OverrideDefaultValue<Class2>(101)); |
|||
} |
|||
|
|||
[Fact] |
|||
public void SetValue_Throws_If_Fails_Validation() |
|||
{ |
|||
var target = new Class1(); |
|||
|
|||
Assert.Throws<ArgumentException>(() => target.SetValue(Class1.FooProperty, 101)); |
|||
} |
|||
|
|||
[Fact] |
|||
public void SetValue_Throws_If_Fails_Validation_Attached() |
|||
{ |
|||
var target = new Class1(); |
|||
|
|||
Assert.Throws<ArgumentException>(() => target.SetValue(Class1.AttachedProperty, 101)); |
|||
} |
|||
|
|||
[Fact] |
|||
public void Reverts_To_DefaultValue_If_Binding_Fails_Validation() |
|||
{ |
|||
var target = new Class1(); |
|||
var source = new Subject<int>(); |
|||
|
|||
target.Bind(Class1.FooProperty, source); |
|||
source.OnNext(150); |
|||
|
|||
Assert.Equal(11, target.GetValue(Class1.FooProperty)); |
|||
} |
|||
|
|||
[Fact] |
|||
public void Reverts_To_DefaultValue_Even_In_Presence_Of_Other_Bindings() |
|||
{ |
|||
var target = new Class1(); |
|||
var source1 = new Subject<int>(); |
|||
var source2 = new Subject<int>(); |
|||
|
|||
target.Bind(Class1.FooProperty, source1); |
|||
target.Bind(Class1.FooProperty, source2); |
|||
source1.OnNext(42); |
|||
source2.OnNext(150); |
|||
|
|||
Assert.Equal(11, target.GetValue(Class1.FooProperty)); |
|||
} |
|||
|
|||
private class Class1 : AvaloniaObject |
|||
{ |
|||
public static readonly StyledProperty<int> FooProperty = |
|||
AvaloniaProperty.Register<Class1, int>( |
|||
"Qux", |
|||
defaultValue: 11, |
|||
validate: ValidateFoo); |
|||
|
|||
public static readonly AttachedProperty<int> AttachedProperty = |
|||
AvaloniaProperty.RegisterAttached<Class1, Class1, int>( |
|||
"Attached", |
|||
defaultValue: 11, |
|||
validate: ValidateFoo); |
|||
|
|||
public static bool ValidateFoo(int value) |
|||
{ |
|||
return value < 100; |
|||
} |
|||
} |
|||
|
|||
private class Class2 : AvaloniaObject |
|||
{ |
|||
} |
|||
} |
|||
} |
|||
Loading…
Reference in new issue