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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 Moq.Protected;
using Xunit;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Web.Mvc.Test
{
public class DataAnnotationsModelValidatorTest
{
[Fact]
public void ConstructorGuards()
{
// Arrange
ModelMetadata metadata = ModelMetadataProviders.Current.GetMetadataForType(null, typeof(object));
ControllerContext context = new ControllerContext();
RequiredAttribute attribute = new RequiredAttribute();
// Act & Assert
Assert.ThrowsArgumentNull(
() => new DataAnnotationsModelValidator(null, context, attribute),
"metadata");
Assert.ThrowsArgumentNull(
() => new DataAnnotationsModelValidator(metadata, null, attribute),
"controllerContext");
Assert.ThrowsArgumentNull(
() => new DataAnnotationsModelValidator(metadata, context, null),
"attribute");
}
[Fact]
public void ValuesSet()
{
// Arrange
ModelMetadata metadata = ModelMetadataProviders.Current.GetMetadataForProperty(() => 15, typeof(string), "Length");
ControllerContext context = new ControllerContext();
RequiredAttribute attribute = new RequiredAttribute();
// Act
DataAnnotationsModelValidator validator = new DataAnnotationsModelValidator(metadata, context, attribute);
// Assert
Assert.Same(attribute, validator.Attribute);
Assert.Equal(attribute.FormatErrorMessage("Length"), validator.ErrorMessage);
}
[Fact]
public void NoClientRulesByDefault()
{
// Arrange
ModelMetadata metadata = ModelMetadataProviders.Current.GetMetadataForProperty(() => 15, typeof(string), "Length");
ControllerContext context = new ControllerContext();
RequiredAttribute attribute = new RequiredAttribute();
// Act
DataAnnotationsModelValidator validator = new DataAnnotationsModelValidator(metadata, context, attribute);
// Assert
Assert.Empty(validator.GetClientValidationRules());
}
[Fact]
public void ValidateWithIsValidTrue()
{
// Arrange
ModelMetadata metadata = ModelMetadataProviders.Current.GetMetadataForProperty(() => 15, typeof(string), "Length");
ControllerContext context = new ControllerContext();
Mock<ValidationAttribute> attribute = new Mock<ValidationAttribute> { CallBase = true };
attribute.Setup(a => a.IsValid(metadata.Model)).Returns(true);
DataAnnotationsModelValidator validator = new DataAnnotationsModelValidator(metadata, context, attribute.Object);
// Act
IEnumerable<ModelValidationResult> result = validator.Validate(null);
// Assert
Assert.Empty(result);
}
[Fact]
public void ValidateWithIsValidFalse()
{
// Arrange
ModelMetadata metadata = ModelMetadataProviders.Current.GetMetadataForProperty(() => 15, typeof(string), "Length");
ControllerContext context = new ControllerContext();
Mock<ValidationAttribute> attribute = new Mock<ValidationAttribute> { CallBase = true };
attribute.Setup(a => a.IsValid(metadata.Model)).Returns(false);
DataAnnotationsModelValidator validator = new DataAnnotationsModelValidator(metadata, context, attribute.Object);
// Act
IEnumerable<ModelValidationResult> result = validator.Validate(null);
// Assert
var validationResult = result.Single();
Assert.Equal("", validationResult.MemberName);
Assert.Equal(attribute.Object.FormatErrorMessage("Length"), validationResult.Message);
}
[Fact]
public void ValidatateWithValidationResultSuccess()
{
// Arrange
ModelMetadata metadata = ModelMetadataProviders.Current.GetMetadataForProperty(() => 15, typeof(string), "Length");
ControllerContext context = new ControllerContext();
Mock<ValidationAttribute> attribute = new Mock<ValidationAttribute> { CallBase = true };
attribute.Protected()
.Setup<ValidationResult>("IsValid", ItExpr.IsAny<object>(), ItExpr.IsAny<ValidationContext>())
.Returns(ValidationResult.Success);
DataAnnotationsModelValidator validator = new DataAnnotationsModelValidator(metadata, context, attribute.Object);
// Act
IEnumerable<ModelValidationResult> result = validator.Validate(null);
// Assert
Assert.Empty(result);
}
[Fact]
public void IsRequiredTests()
{
// Arrange
ModelMetadata metadata = ModelMetadataProviders.Current.GetMetadataForProperty(() => 15, typeof(string), "Length");
ControllerContext context = new ControllerContext();
// Act & Assert
Assert.False(new DataAnnotationsModelValidator(metadata, context, new RangeAttribute(10, 20)).IsRequired);
Assert.True(new DataAnnotationsModelValidator(metadata, context, new RequiredAttribute()).IsRequired);
Assert.True(new DataAnnotationsModelValidator(metadata, context, new DerivedRequiredAttribute()).IsRequired);
}
class DerivedRequiredAttribute : RequiredAttribute
{
}
[Fact]
public void AttributeWithIClientValidatableGetsClientValidationRules()
{
// Arrange
var expected = new ModelClientValidationStringLengthRule("Error", 1, 10);
var context = new ControllerContext();
var metadata = ModelMetadataProviders.Current.GetMetadataForType(() => null, typeof(string));
var attribute = new Mock<ValidationAttribute> { CallBase = true };
attribute.As<IClientValidatable>()
.Setup(cv => cv.GetClientValidationRules(metadata, context))
.Returns(new[] { expected })
.Verifiable();
var validator = new DataAnnotationsModelValidator(metadata, context, attribute.Object);
// Act
ModelClientValidationRule actual = validator.GetClientValidationRules().Single();
// Assert
attribute.Verify();
Assert.Same(expected, actual);
}
}
}
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