50 lines
1.6 KiB
C#
50 lines
1.6 KiB
C#
// Licensed to the .NET Foundation under one or more agreements.
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// The .NET Foundation licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using CommunityToolkit.Mvvm.Collections;
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using Microsoft.VisualStudio.TestTools.UnitTesting;
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namespace CommunityToolkit.Mvvm.UnitTests.Collections;
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[TestClass]
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public class Test_ObservableGroupedCollection
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{
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[TestMethod]
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public void Test_ObservableGroupedCollection_Ctor_ShouldHaveExpectedValues()
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{
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ObservableGroupedCollection<string, int> groupCollection = new();
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Assert.AreEqual(groupCollection.Count, 0);
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}
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[TestMethod]
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public void Test_ObservableGroupedCollection_Ctor_WithGroups_ShouldHaveExpectedValues()
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{
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List<IGrouping<string, int>> groups = new()
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{
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new IntGroup("A", new[] { 1, 3, 5 }),
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new IntGroup("B", new[] { 2, 4, 6 }),
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};
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ObservableGroupedCollection<string, int> groupCollection = new(groups);
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Assert.AreEqual(groupCollection.Count, 2);
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Assert.AreEqual(groupCollection[0].Key, "A");
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CollectionAssert.AreEqual(groupCollection[0], new[] { 1, 3, 5 });
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Assert.AreEqual(groupCollection[1].Key, "B");
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CollectionAssert.AreEqual(groupCollection[1], new[] { 2, 4, 6 });
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}
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[TestMethod]
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[ExpectedException(typeof(ArgumentNullException))]
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public void Test_ObservableGroupedCollection_Ctor_NullCollection()
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{
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_ = new ObservableGroupedCollection<string, int>(null!);
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}
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}
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