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test: cover additional Maybe extension methods

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Kyle Ratti 2024-05-03 17:14:30 -04:00
parent d2a5e2850b
commit b1578d414c
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1 changed files with 39 additions and 3 deletions
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42
Base.Tests/Structures/MaybeExtensionTests.cs
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@ -9,10 +9,46 @@ namespace Base.Tests.Structures;
public class MaybeExtensionTests
{
[Test]
public void EnumerableFirstOrEmptyTests()
public void Enumerable_FirstOrEmpty_WithEmptyEnumerable_ReturnsEmptyMaybe()
{
Assert.That(Array.Empty<string>().FirstOrEmpty(), Is.EqualTo(Maybe.Empty<string>()));
Assert.That(new[] { "banana" }.FirstOrEmpty(), Is.EqualTo(Maybe.Create<string>("banana")));
// Arrange
var data = Array.Empty<int>();
// Act
var result = data.FirstOrEmpty();
// Assert
Assert.That(result, Is.InstanceOf<Maybe<int>>());
Assert.That(result.HasValue, Is.False);
}
[Test]
public void Enumerable_FirstOrEmpty_WithMatchingPredicate_ReturnsMaybeWithValue()
{
// Arrange
var data = new[] { 1, 2, 3, 4 };
// Act
var result = data.FirstOrEmpty(x => x > 1);
// Assert
Assert.That(result, Is.InstanceOf<Maybe<int>>());
Assert.That(result.HasValue, Is.True);
Assert.That(result.Value, Is.EqualTo(2));
}
[Test]
public void Enumerable_FirstOrEmpty_WithNonMatchingPredicate_ReturnsEmptyMaybe()
{
// Arrange
var data = new[] { 1, 2, 3, 4 };
// Act
var result = data.FirstOrEmpty(x => x > 100);
// Assert
Assert.That(result, Is.InstanceOf<Maybe<int>>());
Assert.That(result.HasValue, Is.False);
}
[Test]