125 lines
4.4 KiB
C#
125 lines
4.4 KiB
C#
// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
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using System.Web.TestUtil;
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using Microsoft.Web.UnitTestUtil;
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using Xunit;
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using Assert = Microsoft.TestCommon.AssertEx;
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namespace System.Web.Mvc.Test
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{
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public class ModelBindingContextTest
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{
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[Fact]
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public void CopyConstructor()
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{
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// Arrange
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ModelBindingContext originalBindingContext = new ModelBindingContext()
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{
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FallbackToEmptyPrefix = true,
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ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(object)),
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ModelName = "theName",
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ModelState = new ModelStateDictionary(),
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PropertyFilter = _ => false,
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ValueProvider = new SimpleValueProvider()
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};
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// Act
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ModelBindingContext newBindingContext = new ModelBindingContext(originalBindingContext);
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// Assert
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Assert.False(newBindingContext.FallbackToEmptyPrefix);
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Assert.Null(newBindingContext.ModelMetadata);
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Assert.Equal("", newBindingContext.ModelName);
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Assert.Equal(originalBindingContext.ModelState, newBindingContext.ModelState);
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Assert.True(newBindingContext.PropertyFilter("foo"));
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Assert.Equal(originalBindingContext.ValueProvider, newBindingContext.ValueProvider);
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}
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[Fact]
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public void ModelNameProperty()
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{
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// Arrange
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ModelBindingContext bindingContext = new ModelBindingContext();
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// Act & assert
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MemberHelper.TestStringProperty(bindingContext, "ModelName", String.Empty);
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}
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[Fact]
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public void ModelStateProperty()
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{
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// Arrange
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ModelBindingContext bindingContext = new ModelBindingContext();
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ModelStateDictionary modelState = new ModelStateDictionary();
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// Act & assert
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MemberHelper.TestPropertyWithDefaultInstance(bindingContext, "ModelState", modelState);
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}
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[Fact]
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public void PropertyFilterPropertyDefaultInstanceReturnsTrueForAnyInput()
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{
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// Arrange
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ModelBindingContext bindingContext = new ModelBindingContext();
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// Act
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Predicate<string> propertyFilter = bindingContext.PropertyFilter;
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// Assert
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// We can't test all inputs, but at least this gives us high confidence that we ignore the parameter by default
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Assert.True(propertyFilter(null));
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Assert.True(propertyFilter(String.Empty));
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Assert.True(propertyFilter("Foo"));
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}
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[Fact]
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public void PropertyFilterPropertyReturnsDefaultInstance()
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{
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// Arrange
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ModelBindingContext bindingContext = new ModelBindingContext();
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Predicate<string> propertyFilter = _ => true;
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// Act & assert
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MemberHelper.TestPropertyWithDefaultInstance(bindingContext, "PropertyFilter", propertyFilter);
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}
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[Fact]
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public void ModelAndModelTypeAreFedFromModelMetadata()
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{
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// Act
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ModelBindingContext bindingContext = new ModelBindingContext
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{
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ModelMetadata = ModelMetadataProviders.Current.GetMetadataForType(() => 42, typeof(int))
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};
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// Assert
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Assert.Equal(42, bindingContext.Model);
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Assert.Equal(typeof(int), bindingContext.ModelType);
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}
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[Fact]
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public void ModelIsNotSettable()
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{
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// Arrange
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ModelBindingContext bindingContext = new ModelBindingContext();
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// Act & Assert
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Assert.Throws<InvalidOperationException>(
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() => bindingContext.Model = "foo",
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"This property setter is obsolete, because its value is derived from ModelMetadata.Model now.");
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}
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[Fact]
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public void ModelTypeIsNotSettable()
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{
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// Arrange
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ModelBindingContext bindingContext = new ModelBindingContext();
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// Act & Assert
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Assert.Throws<InvalidOperationException>(
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() => bindingContext.ModelType = typeof(string),
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"This property setter is obsolete, because its value is derived from ModelMetadata.Model now.");
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}
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}
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}
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