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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.DataAnnotations;
using System.Linq;
using Moq;
using Xunit;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Web.Mvc.Test
{
public class ValidatableObjectAdapterTest
{
// IValidatableObject support
[Fact]
public void NonIValidatableObjectInsideMetadataThrows()
{
// Arrange
var context = new ControllerContext();
var validatable = new Mock<IValidatableObject>();
var metadata = ModelMetadataProviders.Current.GetMetadataForType(() => 42, typeof(IValidatableObject));
var validator = new ValidatableObjectAdapter(metadata, context);
// Act & Assert
Assert.Throws<InvalidOperationException>(
() => validator.Validate(null),
"The model object inside the metadata claimed to be compatible with System.ComponentModel.DataAnnotations.IValidatableObject, but was actually System.Int32.");
}
[Fact]
public void IValidatableObjectGetsAProperlyPopulatedValidationContext()
{
// Arrange
var context = new ControllerContext();
var validatable = new Mock<IValidatableObject>();
var metadata = ModelMetadataProviders.Current.GetMetadataForType(() => validatable.Object, validatable.Object.GetType());
var validator = new ValidatableObjectAdapter(metadata, context);
ValidationContext validationContext = null;
validatable.Setup(vo => vo.Validate(It.IsAny<ValidationContext>()))
.Callback<ValidationContext>(vc => validationContext = vc)
.Returns(Enumerable.Empty<ValidationResult>())
.Verifiable();
// Act
validator.Validate(null);
// Assert
validatable.Verify();
Assert.Same(validatable.Object, validationContext.ObjectInstance);
Assert.Null(validationContext.MemberName);
}
[Fact]
public void IValidatableObjectWithNoErrors()
{
// Arrange
var context = new ControllerContext();
var validatable = new Mock<IValidatableObject>();
var metadata = ModelMetadataProviders.Current.GetMetadataForType(() => validatable.Object, validatable.Object.GetType());
var validator = new ValidatableObjectAdapter(metadata, context);
validatable.Setup(vo => vo.Validate(It.IsAny<ValidationContext>()))
.Returns(Enumerable.Empty<ValidationResult>());
// Act
IEnumerable<ModelValidationResult> results = validator.Validate(null);
// Assert
Assert.Empty(results);
}
[Fact]
public void IValidatableObjectWithModelLevelError()
{
// Arrange
var context = new ControllerContext();
var validatable = new Mock<IValidatableObject>();
var metadata = ModelMetadataProviders.Current.GetMetadataForType(() => validatable.Object, validatable.Object.GetType());
var validator = new ValidatableObjectAdapter(metadata, context);
validatable.Setup(vo => vo.Validate(It.IsAny<ValidationContext>()))
.Returns(new ValidationResult[] { new ValidationResult("Error Message") });
// Act
ModelValidationResult result = validator.Validate(null).Single();
// Assert
Assert.Equal("Error Message", result.Message);
Assert.Equal(String.Empty, result.MemberName);
}
[Fact]
public void IValidatableObjectWithMultipleModelLevelErrors()
{
// Arrange
var context = new ControllerContext();
var validatable = new Mock<IValidatableObject>();
var metadata = ModelMetadataProviders.Current.GetMetadataForType(() => validatable.Object, validatable.Object.GetType());
var validator = new ValidatableObjectAdapter(metadata, context);
validatable.Setup(vo => vo.Validate(It.IsAny<ValidationContext>()))
.Returns(new ValidationResult[]
{
new ValidationResult("Error Message 1"),
new ValidationResult("Error Message 2")
});
// Act
ModelValidationResult[] results = validator.Validate(null).ToArray();
// Assert
Assert.Equal(2, results.Length);
Assert.Equal("Error Message 1", results[0].Message);
Assert.Equal("Error Message 2", results[1].Message);
}
[Fact]
public void IValidatableObjectWithMultiPropertyValidationFailure()
{
// Arrange
var context = new ControllerContext();
var validatable = new Mock<IValidatableObject>();
var metadata = ModelMetadataProviders.Current.GetMetadataForType(() => validatable.Object, validatable.Object.GetType());
var validator = new ValidatableObjectAdapter(metadata, context);
validatable.Setup(vo => vo.Validate(It.IsAny<ValidationContext>()))
.Returns(new[] { new ValidationResult("Error Message", new[] { "Property1", "Property2" }) })
.Verifiable();
// Act
ModelValidationResult[] results = validator.Validate(null).ToArray();
// Assert
validatable.Verify();
Assert.Equal(2, results.Length);
Assert.Equal("Error Message", results[0].Message);
Assert.Equal("Property1", results[0].MemberName);
Assert.Equal("Error Message", results[1].Message);
Assert.Equal("Property2", results[1].MemberName);
}
[Fact]
public void IValidatableObjectWhichIsNullReturnsNoErrors()
{
// Arrange
var context = new ControllerContext();
var metadata = ModelMetadataProviders.Current.GetMetadataForType(() => null, typeof(IValidatableObject));
var validator = new ValidatableObjectAdapter(metadata, context);
// Act
IEnumerable<ModelValidationResult> results = validator.Validate(null);
// Assert
Assert.Empty(results);
}
[Fact]
public void IValidatableObjectWhichReturnsValidationResultSuccessReturnsNoErrors()
{
// Arrange
var context = new ControllerContext();
var validatable = new Mock<IValidatableObject>();
var metadata = ModelMetadataProviders.Current.GetMetadataForType(() => validatable.Object, validatable.Object.GetType());
var validator = new ValidatableObjectAdapter(metadata, context);
validatable.Setup(vo => vo.Validate(It.IsAny<ValidationContext>()))
.Returns(new[] { ValidationResult.Success })
.Verifiable();
// Act
ModelValidationResult[] results = validator.Validate(null).ToArray();
// Assert
validatable.Verify();
Assert.Empty(results);
}
}
}
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