125 lines
4.2 KiB
C#
125 lines
4.2 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.Collections.Generic;
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using System.Linq;
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using System.Web.Http.Metadata;
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using System.Web.Http.Metadata.Providers;
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using Xunit;
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using Assert = Microsoft.TestCommon.AssertEx;
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namespace System.Web.Http.Validation
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{
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public class ModelValidatorTest
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{
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private static DataAnnotationsModelMetadataProvider _metadataProvider = new DataAnnotationsModelMetadataProvider();
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private static IEnumerable<ModelValidatorProvider> _noValidatorProviders = Enumerable.Empty<ModelValidatorProvider>();
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[Fact]
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public void ConstructorGuards()
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{
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// Arrange
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ModelMetadata metadata = _metadataProvider.GetMetadataForType(null, typeof(object));
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// Act & Assert
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Assert.ThrowsArgumentNull(
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() => new TestableModelValidator(validatorProviders: null),
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"validatorProviders");
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}
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[Fact]
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public void ValuesSet()
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{
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// Arrange
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ModelMetadata metadata = _metadataProvider.GetMetadataForProperty(() => 15, typeof(string), "Length");
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// Act
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TestableModelValidator validator = new TestableModelValidator(_noValidatorProviders);
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// Assert
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Assert.Same(_noValidatorProviders, validator.ValidatorProviders);
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}
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[Fact]
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public void IsRequiredFalseByDefault()
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{
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// Arrange
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ModelMetadata metadata = _metadataProvider.GetMetadataForProperty(() => 15, typeof(string), "Length");
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// Act
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TestableModelValidator validator = new TestableModelValidator(_noValidatorProviders);
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// Assert
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Assert.False(validator.IsRequired);
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}
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[Fact]
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public void GetModelValidator_DoesNotReadPropertyValues()
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{
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// Arrange
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IEnumerable<ModelValidatorProvider> validatorProviders = new[] { new ObservableModelValidatorProvider() };
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ObservableModel model = new ObservableModel();
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ModelMetadata metadata = new EmptyModelMetadataProvider().GetMetadataForType(() => model, typeof(ObservableModel));
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// Act
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ModelValidator validator = ModelValidator.GetModelValidator(validatorProviders);
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ModelValidationResult[] results = validator.Validate(metadata, model).ToArray();
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// Assert
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Assert.False(model.PropertyWasRead());
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}
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private class ObservableModelValidatorProvider : ModelValidatorProvider
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{
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public override IEnumerable<ModelValidator> GetValidators(ModelMetadata metadata, IEnumerable<ModelValidatorProvider> validatorProviders)
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{
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return new ModelValidator[] { new ObservableModelValidator(validatorProviders) };
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}
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private class ObservableModelValidator : ModelValidator
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{
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public ObservableModelValidator(IEnumerable<ModelValidatorProvider> validatorProviders)
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: base(validatorProviders)
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{
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}
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public override IEnumerable<ModelValidationResult> Validate(ModelMetadata metadata, object container)
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{
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return Enumerable.Empty<ModelValidationResult>();
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}
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}
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}
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private class ObservableModel
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{
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private bool _propertyWasRead;
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public int TheProperty
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{
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get
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{
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_propertyWasRead = true;
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return 42;
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}
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}
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public bool PropertyWasRead()
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{
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return _propertyWasRead;
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}
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}
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private class TestableModelValidator : ModelValidator
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{
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public TestableModelValidator(IEnumerable<ModelValidatorProvider> validatorProviders)
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: base(validatorProviders)
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{
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}
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public override IEnumerable<ModelValidationResult> Validate(ModelMetadata metadata, object container)
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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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