107 lines
3.8 KiB
C#
107 lines
3.8 KiB
C#
// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
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// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
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#if ASPNET50
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using System;
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using System.Collections.Generic;
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using System.Threading.Tasks;
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using Moq;
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using Xunit;
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namespace Microsoft.AspNet.Mvc.ModelBinding
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{
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public class CompositeValueProviderTests
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{
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public static IEnumerable<object[]> RegisteredAsMetadataClasses
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{
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get
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{
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yield return new object[] { new TestValueProviderMetadata() };
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yield return new object[] { new DerivedValueBinderMetadata() };
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}
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}
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[Fact]
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public async Task GetKeysFromPrefixAsync_ReturnsResultFromFirstValueProviderThatReturnsValues()
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{
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// Arrange
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var provider1 = Mock.Of<IValueProvider>();
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var dictionary = new Dictionary<string, string>(StringComparer.Ordinal)
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{
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{ "prefix-test", "some-value" },
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};
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var provider2 = new Mock<IEnumerableValueProvider>();
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provider2.Setup(p => p.GetKeysFromPrefixAsync("prefix"))
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.Returns(Task.FromResult<IDictionary<string, string>>(dictionary))
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.Verifiable();
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var provider = new CompositeValueProvider(new[] { provider1, provider2.Object });
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// Act
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var values = await provider.GetKeysFromPrefixAsync("prefix");
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// Assert
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var result = Assert.Single(values);
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Assert.Equal("prefix-test", result.Key);
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Assert.Equal("some-value", result.Value);
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provider2.Verify();
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}
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[Fact]
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public async Task GetKeysFromPrefixAsync_ReturnsEmptyDictionaryIfNoValueProviderReturnsValues()
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{
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// Arrange
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var provider1 = Mock.Of<IValueProvider>();
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var provider2 = Mock.Of<IValueProvider>();
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var provider = new CompositeValueProvider(new[] { provider1, provider2 });
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// Act
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var values = await provider.GetKeysFromPrefixAsync("prefix");
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// Assert
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Assert.Empty(values);
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}
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[Theory]
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[MemberData(nameof(RegisteredAsMetadataClasses))]
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public void FilterReturnsItself_ForAnyClassRegisteredAsGenericParam(IValueProviderMetadata metadata)
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{
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// Arrange
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var values = new Dictionary<string, object>(StringComparer.OrdinalIgnoreCase);
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var unrelatedMetadata = new UnrelatedValueBinderMetadata();
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var valueProvider1 = GetMockValueProvider(metadata);
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var valueProvider2 = GetMockValueProvider(unrelatedMetadata);
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var provider = new CompositeValueProvider(new List<IValueProvider>() { valueProvider1.Object, valueProvider2.Object });
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// Act
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var result = provider.Filter(metadata);
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// Assert
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var valueProvider = Assert.IsType<CompositeValueProvider>(result);
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var filteredProvider = Assert.Single(valueProvider);
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// should not be unrelated metadata.
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Assert.Same(valueProvider1.Object, filteredProvider);
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}
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private Mock<IMetadataAwareValueProvider> GetMockValueProvider(IValueProviderMetadata metadata)
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{
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var valueProvider = new Mock<IMetadataAwareValueProvider>();
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valueProvider.Setup(o => o.Filter(metadata))
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.Returns(valueProvider.Object);
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return valueProvider;
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}
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private class TestValueProviderMetadata : IValueProviderMetadata
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{
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}
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private class DerivedValueBinderMetadata : TestValueProviderMetadata
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{
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}
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private class UnrelatedValueBinderMetadata : IValueProviderMetadata
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{
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}
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}
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}
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#endif |