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Type Checking and Casting in C#: move to .NET 10 #2307

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10 changes: 5 additions & 5 deletions ...InCSharp/TypeCheckingAndCastingInCSharp.Tests/TypeCheckingAndCastingInCSharp.Tests.csproj
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Original file line number Diff line number Diff line change
@@ -1,20 +1,20 @@
<Project Sdk="Microsoft.NET.Sdk">

<PropertyGroup>
<TargetFramework>net6.0</TargetFramework>
<TargetFramework>net10.0</TargetFramework>
<Nullable>enable</Nullable>

<IsPackable>false</IsPackable>
</PropertyGroup>

<ItemGroup>
<PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.11.0" />
<PackageReference Include="xunit" Version="2.4.1" />
<PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">
<PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.11.0" />
<PackageReference Include="xunit" Version="2.9.3" />
<PackageReference Include="xunit.runner.visualstudio" Version="4.0.1">
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
<PrivateAssets>all</PrivateAssets>
</PackageReference>
<PackageReference Include="coverlet.collector" Version="3.1.0">
<PackageReference Include="coverlet.collector" Version="10.1.0">
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
<PrivateAssets>all</PrivateAssets>
</PackageReference>
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11 changes: 11 additions & 0 deletions ...ypeCheckingAndCastingInCSharp/TypeCheckingAndCastingInCSharp.Tests/TypeConversionTests.cs
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Expand Up @@ -41,6 +41,17 @@ public void WhenAssigningValuesToOtherType_ThenUseCastExpressionForExplicitConve
Assert.Equal(10, number);
}

[Fact]
public void WhenCastingAnOverflowingValue_ThenUncheckedWrapsAndCheckedThrows()
{
// arrange
long tooBig = long.MaxValue;

// act & assert
Assert.Equal(-1, unchecked((int)tooBig));
Assert.Throws<OverflowException>(() => checked((int)tooBig));
}

[Fact]
public void WhenAssigningBaseToDerivedType_ThenUseCastExpressionForExplicitConversion()
{
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17 changes: 15 additions & 2 deletions ...s/TypeCheckingAndCastingInCSharp/TypeCheckingAndCastingInCSharp.Tests/TypeTestingTests.cs
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
using System;
using System.IO;
using TypeCheckingAndCastingInCSharp.Models;
using Xunit;

namespace TypeCheckingAndCastingInCSharp.Tests
Expand Down Expand Up @@ -94,14 +95,26 @@ public void WhenTypeTestingAtRunTime_ThenUseGeTypeAndTypeof()
[Fact]
public void WhenTypeCheckingValues_ThenIsOperatorReturnsBoolean()
{
int number = 16;
string name = "John Smith";
object number = 16;
object name = "John Smith";

Assert.True(number is int); // true
Assert.True(name is string); // true
Assert.False(number is bool); // false
}

[Fact]
public void WhenCheckingADerivedInstance_ThenIsMatchesTheBaseTypeAndGetTypeDoesNot()
{
// arrange
Animal animal = new Horse();

// act & assert
Assert.True(animal is Animal); // compatible type
Assert.False(animal.GetType() == typeof(Animal)); // not the exact type
Assert.True(animal.GetType() == typeof(Horse)); // the exact type
}

[Fact]
public void WhenCastingValues_ThenUseTypePatterns()
{
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2 changes: 1 addition & 1 deletion ...ngAndCastingInCSharp/TypeCheckingAndCastingInCSharp/TypeCheckingAndCastingInCSharp.csproj
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@

<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net6.0</TargetFramework>
<TargetFramework>net10.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>
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