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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
namespace Microsoft.AspNetCore.Mvc.ViewFeatures.Filters;
public class ViewDataAttributePropertyProviderTest
{
[Fact]
public void GetViewDataProperties_ReturnsNull_IfTypeDoesNotHaveAnyViewDataProperties()
{
// Arrange
var type = typeof(TestController_NoViewDataProperties);
// Act
var result = ViewDataAttributePropertyProvider.GetViewDataProperties(type);
// Assert
Assert.Null(result);
}
[Fact]
public void GetViewDataProperties_ReturnsViewDataProperties()
{
// Arrange
var type = typeof(BaseController);
// Act
var result = ViewDataAttributePropertyProvider.GetViewDataProperties(type);
// Assert
Assert.Collection(
result.OrderBy(p => p.Key),
property =>
{
Assert.Equal(nameof(BaseController.BaseProperty), property.PropertyInfo.Name);
Assert.Equal(nameof(BaseController.BaseProperty), property.Key);
});
}
[Fact]
public void GetViewDataProperties_ReturnsViewDataProperties_FromBaseTypes()
{
// Arrange
var type = typeof(DerivedController);
// Act
var result = ViewDataAttributePropertyProvider.GetViewDataProperties(type);
// Assert
Assert.Collection(
result.OrderBy(p => p.Key),
property => Assert.Equal(nameof(BaseController.BaseProperty), property.PropertyInfo.Name),
property => Assert.Equal(nameof(DerivedController.DerivedProperty), property.PropertyInfo.Name));
}
[Fact]
public void GetViewDataProperties_UsesKeyFromViewDataAttribute()
{
// Arrange
var type = typeof(PropertyWithKeyController);
// Act
var result = ViewDataAttributePropertyProvider.GetViewDataProperties(type);
// Assert
Assert.Collection(
result.OrderBy(p => p.Key),
property =>
{
Assert.Equal(nameof(PropertyWithKeyController.Different), property.PropertyInfo.Name);
Assert.Equal("Test", property.Key);
});
}
public class TestController_NoViewDataProperties
{
public DateTime? DateTime { get; set; }
}
public class BaseController
{
[ViewData]
public string BaseProperty { get; }
}
public class DerivedController : BaseController
{
[ViewData]
public string DerivedProperty { get; set; }
}
public class PropertyWithKeyController
{
[ViewData(Key = "Test")]
public string Different { get; set; }
}
}
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