88 lines
2.7 KiB
C#
88 lines
2.7 KiB
C#
// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
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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 ModelBinderAttributeTest
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{
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[Fact]
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public void ConstructorWithInvalidBinderTypeThrows()
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{
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// Arrange
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Type badType = typeof(string);
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// Act & Assert
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Assert.Throws<ArgumentException>(
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delegate { new ModelBinderAttribute(badType); },
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"The type 'System.String' does not implement the IModelBinder interface.\r\nParameter name: binderType");
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}
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[Fact]
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public void ConstructorWithNullBinderTypeThrows()
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{
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// Act & Assert
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Assert.ThrowsArgumentNull(
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delegate { new ModelBinderAttribute(null); }, "binderType");
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}
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[Fact]
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public void BinderTypeProperty()
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{
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// Arrange
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Type binderType = typeof(GoodConverter);
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ModelBinderAttribute attr = new ModelBinderAttribute(binderType);
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// Act & Assert
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Assert.Same(binderType, attr.BinderType);
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}
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[Fact]
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public void GetBinder()
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{
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// Arrange
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ModelBinderAttribute attr = new ModelBinderAttribute(typeof(GoodConverter));
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// Act
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IModelBinder binder = attr.GetBinder();
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// Assert
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Assert.IsType<GoodConverter>(binder);
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}
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[Fact]
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public void GetBinderWithBadConstructorThrows()
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{
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// Arrange
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ModelBinderAttribute attr = new ModelBinderAttribute(typeof(BadConverter));
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// Act & Assert
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Assert.Throws<InvalidOperationException>(
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delegate { attr.GetBinder(); },
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"An error occurred when trying to create the IModelBinder 'System.Web.Mvc.Test.ModelBinderAttributeTest+BadConverter'. Make sure that the binder has a public parameterless constructor.");
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}
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private class GoodConverter : IModelBinder
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{
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public object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
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{
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throw new NotImplementedException();
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}
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}
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private class BadConverter : IModelBinder
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{
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// no public parameterless constructor
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public BadConverter(string s)
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{
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}
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public object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
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{
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throw new NotImplementedException();
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}
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}
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}
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}
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