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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using Moq;
using Xunit;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Web.Mvc.Test
{
public class HttpPostedFileBaseModelBinderTest
{
[Fact]
public void BindModelReturnsEmptyResultIfEmptyFileInputElementInPost()
{
// Arrange
Mock<HttpPostedFileBase> mockFile = new Mock<HttpPostedFileBase>();
mockFile.Setup(f => f.ContentLength).Returns(0);
mockFile.Setup(f => f.FileName).Returns(String.Empty);
Mock<ControllerContext> mockControllerContext = new Mock<ControllerContext>();
mockControllerContext.SetupGet(c => c.HttpContext.Request.Files["fileName"]).Returns(mockFile.Object);
HttpPostedFileBaseModelBinder binder = new HttpPostedFileBaseModelBinder();
ModelBindingContext bindingContext = new ModelBindingContext() { ModelName = "fileName" };
// Act
object result = binder.BindModel(mockControllerContext.Object, bindingContext);
// Assert
Assert.Null(result);
}
[Fact]
public void BindModelReturnsNullIfNoFileInputElementInPost()
{
// Arrange
Mock<ControllerContext> mockControllerContext = new Mock<ControllerContext>();
mockControllerContext.Setup(c => c.HttpContext.Request.Files["fileName"]).Returns((HttpPostedFileBase)null);
HttpPostedFileBaseModelBinder binder = new HttpPostedFileBaseModelBinder();
ModelBindingContext bindingContext = new ModelBindingContext() { ModelName = "fileName" };
// Act
object result = binder.BindModel(mockControllerContext.Object, bindingContext);
// Assert
Assert.Null(result);
}
[Fact]
public void BindModelReturnsResultIfFileFound()
{
// Arrange
Mock<HttpPostedFileBase> mockFile = new Mock<HttpPostedFileBase>();
mockFile.Setup(f => f.ContentLength).Returns(1234);
mockFile.Setup(f => f.FileName).Returns("somefile");
Mock<ControllerContext> mockControllerContext = new Mock<ControllerContext>();
mockControllerContext.SetupGet(c => c.HttpContext.Request.Files["fileName"]).Returns(mockFile.Object);
HttpPostedFileBaseModelBinder binder = new HttpPostedFileBaseModelBinder();
ModelBindingContext bindingContext = new ModelBindingContext() { ModelName = "fileName" };
// Act
object result = binder.BindModel(mockControllerContext.Object, bindingContext);
// Assert
Assert.NotNull(result);
Assert.Same(mockFile.Object, result);
}
[Fact]
public void BindModelThrowsIfBindingContextIsNull()
{
// Arrange
ControllerContext controllerContext = new Mock<ControllerContext>().Object;
HttpPostedFileBaseModelBinder binder = new HttpPostedFileBaseModelBinder();
// Act & assert
Assert.ThrowsArgumentNull(
delegate { binder.BindModel(controllerContext, null); }, "bindingContext");
}
[Fact]
public void BindModelThrowsIfControllerContextIsNull()
{
// Arrange
HttpPostedFileBaseModelBinder binder = new HttpPostedFileBaseModelBinder();
// Act & assert
Assert.ThrowsArgumentNull(
delegate { binder.BindModel(null, null); }, "controllerContext");
}
}
}
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