49 lines
1.6 KiB
C#
49 lines
1.6 KiB
C#
// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
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namespace System.Data.Entity.Utilities
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{
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using System.Linq;
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using Xunit;
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public class DynamicEqualityComparerLinqIntegrationTests
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{
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[Fact]
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public void Distinct_removes_duplicates_using_provided_equality_function()
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{
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var values = new[] { "a", "b", "A" };
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Assert.True(
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new[] { "a", "b" }.SequenceEqual(
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values.Distinct((a, b) => a.Equals(b, StringComparison.OrdinalIgnoreCase))));
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}
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[Fact]
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public void Intersect_returns_intersection_using_provided_equality_function()
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{
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var setA = new[] { "a", "b" };
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var setB = new[] { "A", "C" };
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Assert.True(
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new[] { "a" }.SequenceEqual(
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setA.Intersect(setB, (a, b) => a.Equals(b, StringComparison.OrdinalIgnoreCase))));
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}
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[Fact]
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public void GroupBy_groups_items_using_provided_equality_function()
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{
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var values = new[] { "a", "A" };
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Assert.Equal(1, values.GroupBy((a, b) => a.Equals(b, StringComparison.OrdinalIgnoreCase)).Count());
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}
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[Fact]
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public void SequenceEqual_compares_items_using_provided_equality_function()
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{
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var first = new[] { "a", "A" };
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var second = new[] { "A", "a" };
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Assert.True(first.SequenceEqual(second, (a, b) => a.Equals(b, StringComparison.OrdinalIgnoreCase)));
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}
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}
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}
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