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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using Microsoft.TestCommon;
using Xunit;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Web.Http.Metadata.Providers
{
public class DataAnnotationsModelMetadataProviderTest : MarshalByRefObject
{
[Fact]
public void GetMetadataForPropertiesSetTypesAndPropertyNames()
{
// Arrange
var provider = new DataAnnotationsModelMetadataProvider();
// Act
IEnumerable<ModelMetadata> result = provider.GetMetadataForProperties("foo", typeof(string));
// Assert
Assert.True(result.Any(m => m.ModelType == typeof(int)
&& m.PropertyName == "Length"
&& (int)m.Model == 3));
}
[Fact]
public void GetMetadataForPropertySetsTypeAndPropertyName()
{
// Arrange
var provider = new DataAnnotationsModelMetadataProvider();
// Act
ModelMetadata result = provider.GetMetadataForProperty(null, typeof(string), "Length");
// Assert
Assert.Equal(typeof(int), result.ModelType);
Assert.Equal("Length", result.PropertyName);
}
[Fact]
public void GetMetadataForTypeSetsTypeWithNullPropertyName()
{
// Arrange
var provider = new DataAnnotationsModelMetadataProvider();
// Act
ModelMetadata result = provider.GetMetadataForType(null, typeof(string));
// Assert
Assert.Equal(typeof(string), result.ModelType);
Assert.Null(result.PropertyName);
}
// [ReadOnly] & [Editable] tests
class ReadOnlyModel
{
public int NoAttributes { get; set; }
[ReadOnly(true)]
public int ReadOnlyAttribute { get; set; }
[Editable(false)]
public int EditableAttribute { get; set; }
[ReadOnly(true)]
[Editable(true)]
public int BothAttributes { get; set; }
// Editable trumps ReadOnly
}
[Fact]
public void ReadOnlyTests()
{
// Arrange
var provider = new DataAnnotationsModelMetadataProvider();
// Act & Assert
Assert.False(provider.GetMetadataForProperty(null, typeof(ReadOnlyModel), "NoAttributes").IsReadOnly);
Assert.True(provider.GetMetadataForProperty(null, typeof(ReadOnlyModel), "ReadOnlyAttribute").IsReadOnly);
Assert.True(provider.GetMetadataForProperty(null, typeof(ReadOnlyModel), "EditableAttribute").IsReadOnly);
Assert.False(provider.GetMetadataForProperty(null, typeof(ReadOnlyModel), "BothAttributes").IsReadOnly);
}
// [Display] & [DisplayName] tests
class DisplayModel
{
public int NoAttribute { get; set; }
// Description
[Display]
public int DescriptionNotSet { get; set; }
[Display(Description = "Description text")]
public int DescriptionSet { get; set; }
}
[Fact]
public void DescriptionTests()
{
// Arrange
var provider = new DataAnnotationsModelMetadataProvider();
// Act & Assert
Assert.Null(provider.GetMetadataForProperty(null, typeof(DisplayModel), "NoAttribute").Description);
Assert.Null(provider.GetMetadataForProperty(null, typeof(DisplayModel), "DescriptionNotSet").Description);
Assert.Equal("Description text", provider.GetMetadataForProperty(null, typeof(DisplayModel), "DescriptionSet").Description);
}
}
[RunWith(typeof(PartialTrustRunner))]
public class CachedDataAnnotationsModelMetadataProviderPartialTrustTest : DataAnnotationsModelMetadataProviderTest { }
}
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