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ArrayListVsList: retarget net10.0, add mixed-type ArrayList cast demonstration #2131

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ArrayListVsList: retarget net10.0, add mixed-type ArrayList cast demonstration #2131

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2 changes: 1 addition & 1 deletion collections-lists/ArrayListVsList/ArrayListVsList/ArrayListVsList.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>net7.0</TargetFramework>
<TargetFramework>net10.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>
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6 changes: 6 additions & 0 deletions collections-lists/ArrayListVsList/ArrayListVsList/Collection.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,12 @@ public int GetSum(ArrayList arrayList)
return Sum;
}

public ArrayList MixedTypes { get; set; } = new() { 1, "two", DateTime.Now };

public int ReadFirstAsInt() => (int)MixedTypes[0]!;

public int ReadSecondAsInt() => (int)MixedTypes[1]!;

public void ListExample()
{
Sum = 0;
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16 changes: 16 additions & 0 deletions collections-lists/ArrayListVsList/Tests/Test.cs
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Expand Up @@ -29,6 +29,22 @@ public void WhenValidObjectsAddedToList_ThenSumSuccessful()
Assert.Equal(expectedResult, _collection.Sum);
}

[Fact]
public void WhenMixedTypeArrayListReadWithMatchingCast_ThenValueReturned()
{
var expectedResult = 1;

var actualResult = _collection.ReadFirstAsInt();

Assert.Equal(expectedResult, actualResult);
}

[Fact]
public void WhenMixedTypeArrayListReadWithWrongCast_ThenInvalidCastExceptionThrown()
{
Assert.Throws<InvalidCastException>(() => _collection.ReadSecondAsInt());
}

[Fact]
public void WhenInvalidObjectsAddedToArrayList_ThenSumFail()
{
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2 changes: 1 addition & 1 deletion collections-lists/ArrayListVsList/Tests/Tests.csproj
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
<Project Sdk="Microsoft.NET.Sdk">

<PropertyGroup>
<TargetFramework>net7.0</TargetFramework>
<TargetFramework>net10.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>

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