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test: add unit tests for double and flags enum conversions #3175

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Sep 22, 2025
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test: add unit tests for double and flags enum conversions #3175

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64 changes: 64 additions & 0 deletions TUnit.TestProject/Bugs/3171/Tests.cs
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Original file line number Diff line number Diff line change
@@ -0,0 +1,64 @@
using TUnit.TestProject.Attributes;

namespace TUnit.TestProject.Bugs._3171;

[EngineTest(ExpectedResult.Pass)]
public class Tests
{
[Test]
[Arguments(null, 0d, 0d)]
[Arguments(null, 12d, 12d)]
[Arguments(false, 42d, 0d)]
[Arguments(true, 42d, 1d)]
[Arguments(0, 42d, 0d)]
[Arguments(1, 42d, 1d)]
[Arguments(42, 0d, 42d)]
[Arguments(-1, 0d, -1d)]
[Arguments(0L, 42d, 0d)]
[Arguments(1L, 42d, 1d)]
[Arguments(42L, 0d, 42d)]
[Arguments(-1L, 0d, -1d)]
[Arguments(0d, 42d, 0d)]
[Arguments(1d, 42d, 1d)]
[Arguments(42d, 0d, 42d)]
[Arguments(-1d, 0d, -1d)]
[Arguments(3.5d, 0d, 3.5d)]
[Arguments(-3.14d, 0d, -3.14d)]
[Arguments("123", 42d, 123d)]
[Arguments("-1", 42d, -1d)]
[Arguments("3.14", 42d, 3.14d)]
[Arguments("-1.02", 42d, -1.02d)]
public void DoubleConversion(object? input, double nullValue, double expected)
{ }

[Test]
[Arguments(null, Flags.Value1, Flags.Value1)]
[Arguments(null, Flags.Value2, Flags.Value2)]
[Arguments(null, Flags.Value1 | Flags.Value2, Flags.Value1 | Flags.Value2)]
[Arguments(null, Flags.Max, Flags.Max)]
[Arguments("0", Flags.Max, (Flags)0)]
[Arguments("1", Flags.Max, Flags.Value1)]
[Arguments("2", Flags.Max, Flags.Value2)]
[Arguments("3", Flags.Max, (Flags)3)]
[Arguments("4", Flags.Max, Flags.Value3)]
[Arguments("Value1", Flags.Max, Flags.Value1)]
[Arguments("Value2", Flags.Max, Flags.Value2)]
[Arguments("value1", Flags.Max, Flags.Value1)]
[Arguments("value2", Flags.Max, Flags.Value2)]
[Arguments("Value1,Value2", Flags.Max, Flags.Value1 | Flags.Value2)]
[Arguments("value1, value2", Flags.Max, Flags.Value1 | Flags.Value2)]
[Arguments(Flags.Value1, Flags.Max, Flags.Value1)]
[Arguments(Flags.Value2, Flags.Max, Flags.Value2)]
[Arguments(Flags.Max, (Flags)0, Flags.Max)]
public void FlagsEnumConversion(object? input, Flags nullValue, Flags expected)
{ }
}

[Flags]
public enum Flags : byte
{
Value1 = 1 << 0,
Value2 = 1 << 1,
Value3 = 1 << 2,
Max = 255,
}
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