Added FlexArrayInt and created FlexArrayString.cs
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MarcUs7i
commit
d620ec163d
11 changed files with 5391 additions and 0 deletions
36
FlexArray.Test/FlexArray.Test.csproj
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36
FlexArray.Test/FlexArray.Test.csproj
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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<TargetFramework>net9.0</TargetFramework>
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<ImplicitUsings>enable</ImplicitUsings>
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<Nullable>enable</Nullable>
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<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
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<IsPackable>false</IsPackable>
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</PropertyGroup>
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<ItemGroup>
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<Using Include="FluentAssertions" />
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<Using Include="Xunit" />
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<Using Include="NSubstitute" />
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</ItemGroup>
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<ItemGroup>
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<PackageReference Include="FluentAssertions" Version="6.12.2" />
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<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
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<PackageReference Include="NSubstitute" Version="5.3.0" />
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<PackageReference Include="xunit" Version="2.9.2" />
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<PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">
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<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
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<PrivateAssets>all</PrivateAssets>
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</PackageReference>
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<PackageReference Include="coverlet.collector" Version="6.0.2">
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<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
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<PrivateAssets>all</PrivateAssets>
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</PackageReference>
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</ItemGroup>
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<ItemGroup>
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<ProjectReference Include="..\FlexArray\FlexArray.csproj" />
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</ItemGroup>
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</Project>
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339
FlexArray.Test/FlexArrayIntTests.cs
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339
FlexArray.Test/FlexArrayIntTests.cs
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namespace FlexArray.Test;
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public class FlexArrayIntTests
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{
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[Fact]
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public void Construction_NoSize()
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{
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var array = new FlexArrayInt();
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array.Should().NotBeNull();
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array.Count.Should().Be(0, "no items added yet");
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array.Capacity.Should().Be(FlexArrayInt.DefaultStartSize, "default capacity");
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}
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[Theory]
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[InlineData(0)]
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[InlineData(4)]
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[InlineData(20)]
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[InlineData(100_000)]
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public void Construction_WithSize(int size)
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{
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var array = new FlexArrayInt(size);
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array.Should().NotBeNull();
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array.Count.Should().Be(0, "no items added yet");
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array.Capacity.Should().Be(size, "initial capacity set to specified size");
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}
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[Fact]
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public void Construction_WithInvalidSize()
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{
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var array = new FlexArrayInt(-5);
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array.Should().NotBeNull();
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array.Count.Should().Be(0);
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array.Capacity.Should().Be(0, "negative size provided => set to 0");
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}
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[Fact]
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public void AddItem_Single()
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{
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var array = new FlexArrayInt();
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array.Add(17);
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array.Count.Should().Be(1, "one item added");
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array.Capacity.Should().Be(FlexArrayInt.DefaultStartSize, "capacity unchanged");
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}
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[Fact]
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public void AddItem_Multiple_NoGrowth()
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{
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var array = new FlexArrayInt();
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array.Add(17);
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array.Add(20);
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array.Add(-100);
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array.Count.Should().Be(3, "three items added");
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array.Capacity.Should().Be(FlexArrayInt.DefaultStartSize, "no growth required yet");
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}
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[Fact]
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public void AddItem_Multiple_Growth()
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{
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var array = new FlexArrayInt();
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void AddItems(int count)
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{
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for (var i = 0; i < count; i++)
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{
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array.Add(i + 1);
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}
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}
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AddItems(FlexArrayInt.DefaultStartSize);
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array.Capacity.Should().Be(FlexArrayInt.DefaultStartSize);
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AddItems(2);
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array.Capacity.Should().BeGreaterThan(FlexArrayInt.DefaultStartSize, "capacity exceeded, had to grow");
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array.Count.Should().Be(FlexArrayInt.DefaultStartSize + 2);
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}
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[Fact]
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public void Contains_Success()
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{
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var array = new FlexArrayInt();
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array.Add(12);
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array.Add(23);
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array.Add(-900);
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array.Add(76);
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array.Contains(23)
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.Should().BeTrue();
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}
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[Fact]
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public void Contains_Success_AfterGrowth()
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{
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var array = new FlexArrayInt();
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for (var i = 0; i <= FlexArrayInt.DefaultStartSize; i++)
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{
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array.Add(i);
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}
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array.Contains(FlexArrayInt.DefaultStartSize - 1)
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.Should().BeTrue();
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}
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[Fact]
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public void Contains_Empty()
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{
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var array = new FlexArrayInt();
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array.Contains(23)
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.Should().BeFalse("collection is empty");
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}
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[Fact]
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public void Contains_NotFound()
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{
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var array = new FlexArrayInt();
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array.Add(-12);
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array.Add(23);
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array.Contains(12)
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.Should().BeFalse("not contained in list");
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}
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[Fact]
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public void Indexer_Simple()
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{
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var array = new FlexArrayInt();
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array.Add(89);
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array[0].Should().Be(89);
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}
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[Fact]
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public void Indexer_Multiple()
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{
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var array = new FlexArrayInt();
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for (var i = 0; i < 100; i++)
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{
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array.Add(i+1);
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}
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array[20].Should().Be(21);
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array[88].Should().Be(89);
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}
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[Theory]
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[InlineData(-1, "negative index")]
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[InlineData(2, "index too high")]
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[InlineData(10, "index too high")]
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public void Indexer_InvalidIndex(int index, string reason)
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{
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var array = new FlexArrayInt();
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array.Add(-89);
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array[index].Should().Be(-1, reason);
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}
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[Fact]
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public void Iterate()
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{
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var array = new FlexArrayInt();
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for (var i = 0; i < 10; i++)
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{
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array.Add(i);
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}
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for (var i = 0; i < 10; i++)
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{
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array[i].Should().Be(i);
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}
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}
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[Fact]
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public void Remove_ByIndex_Simple()
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{
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var array = new FlexArrayInt();
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array.Add(40);
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array.Count.Should().Be(1);
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array.RemoveAt(0).Should().BeTrue("index exists");
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array.Count.Should().Be(0, "count has to be reduced");
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}
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[Fact]
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public void Remove_ByIndex_Shifting()
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{
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var array = new FlexArrayInt();
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array.Add(30);
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array.Add(31);
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array.Add(32);
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array.Count.Should().Be(3);
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array.RemoveAt(1).Should().BeTrue();
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array.Count.Should().Be(2);
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array[1].Should().Be(32, "items to the right have to be shifted left after removal");
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array.RemoveAt(2)
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.Should().BeFalse("not a valid index any longer, despite a value still being there");
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}
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[Fact]
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public void Remove_ByIndex_FromEnd()
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{
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var array = new FlexArrayInt();
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array.Add(30);
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array.Add(31);
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array.Add(32);
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array.Count.Should().Be(3);
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array.RemoveAt(2).Should().BeTrue();
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array.Count.Should().Be(2);
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array[1].Should().Be(31);
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}
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[Fact]
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public void Remove_ByIndex_Invalid()
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{
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var array = new FlexArrayInt();
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array.Add(30);
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array.RemoveAt(1)
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.Should().BeFalse("the array is big enough for this index, but no value has been set there");
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array.Count.Should().Be(1, "unchanged");
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array.RemoveAt(-1)
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.Should().BeFalse("negative index doesn't make any sense");
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}
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[Fact]
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public void Remove_Single_OneOccurrence()
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{
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var array = new FlexArrayInt();
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array.Add(1);
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array.Add(2);
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array.Add(3);
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array.Remove(2, true)
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.Should().BeTrue("element was found");
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array.Count.Should().Be(2, "element was removed");
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}
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[Fact]
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public void Remove_Single_OnlyOccurrence()
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{
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var array = new FlexArrayInt();
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array.Add(1);
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array.Remove(1, true)
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.Should().BeTrue("element was found");
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array.Count.Should().Be(0, "element was removed");
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}
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[Fact] public void Remove_Single_MultipleOccurrence()
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{
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var array = new FlexArrayInt();
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array.Add(1);
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array.Add(2);
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array.Add(2);
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array.Remove(2, true)
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.Should().BeTrue("element was found");
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array.Count.Should().Be(2, "only one element was removed");
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}
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[Fact]
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public void Remove_Single_NotFound()
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{
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var array = new FlexArrayInt();
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array.Add(1);
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array.Add(2);
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array.Add(3);
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array.Remove(4, true)
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.Should().BeFalse("element was not found");
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array.Count.Should().Be(3, "unchanged");
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}
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[Fact]
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public void Remove_Multiple_OneOccurrence()
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{
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var array = new FlexArrayInt();
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array.Add(1);
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array.Add(2);
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array.Add(3);
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array.Remove(2, false)
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.Should().BeTrue("element was found");
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array.Count.Should().Be(2, "only one element was removed");
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}
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[Fact]
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public void Remove_Multiple_MultipleOccurrence()
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{
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var array = new FlexArrayInt();
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array.Add(1);
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array.Add(2);
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array.Add(2);
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array.Add(3);
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array.Add(2);
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array.Add(4);
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array.Add(2);
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array.Remove(2, false)
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.Should().BeTrue("elements were found");
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array.Count.Should().Be(3, "four elements were removed");
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}
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[Fact]
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public void Remove_Multiple_OnlyOccurrence()
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{
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var array = new FlexArrayInt();
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array.Add(1);
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array.Add(1);
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array.Add(1);
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array.Remove(1, false)
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.Should().BeTrue("elements were found");
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array.Count.Should().Be(0, "all elements were removed");
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}
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[Fact]
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public void Remove_Multiple_NoOccurrence()
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{
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var array = new FlexArrayInt();
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array.Add(1);
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array.Add(2);
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array.Add(3);
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array.Remove(4, false)
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.Should().BeFalse("element was not found");
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array.Count.Should().Be(3, "unchanged");
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}
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}
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