aspnetcore/test/Microsoft.AspNet.Mvc.ModelB.../Binders/ModelBindingContextTest.cs

82 lines
2.9 KiB
C#

// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
using System;
using Microsoft.AspNet.Testing;
using Xunit;
namespace Microsoft.AspNet.Mvc.ModelBinding.Test
{
public class ModelBindingContextTest
{
[Fact]
public void CopyConstructor()
{
// Arrange
var originalBindingContext = new ModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(object)),
ModelName = "theName",
ModelState = new ModelStateDictionary(),
ValueProvider = new SimpleHttpValueProvider()
};
var newModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(object));
// Act
var newBindingContext = new ModelBindingContext(originalBindingContext, string.Empty, newModelMetadata);
// Assert
Assert.Same(newModelMetadata, newBindingContext.ModelMetadata);
Assert.Equal("", newBindingContext.ModelName);
Assert.Equal(originalBindingContext.ModelState, newBindingContext.ModelState);
Assert.Equal(originalBindingContext.ValueProvider, newBindingContext.ValueProvider);
}
[Fact]
public void ModelProperty_ThrowsIfModelMetadataDoesNotExist()
{
// Arrange
var bindingContext = new ModelBindingContext();
// Act & assert
ExceptionAssert.Throws<InvalidOperationException>(
() => bindingContext.Model = null,
"The ModelMetadata property must be set before accessing this property.");
}
[Fact]
public void ModelAndModelTypeAreFedFromModelMetadata()
{
// Act
var bindingContext = new ModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(() => 42, typeof(int))
};
// Assert
Assert.Equal(42, bindingContext.Model);
Assert.Equal(typeof(int), bindingContext.ModelType);
}
[Fact]
public void ValidationNodeProperty_DefaultValues()
{
// Act
var bindingContext = new ModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(() => 42, typeof(int)),
ModelName = "theInt"
};
// Act
var validationNode = bindingContext.ValidationNode;
// Assert
Assert.NotNull(validationNode);
Assert.Equal(bindingContext.ModelMetadata, validationNode.ModelMetadata);
Assert.Equal(bindingContext.ModelName, validationNode.ModelStateKey);
}
}
}