chore: initial commit

2026-03-30 21:29:45 -05:00
commit f39c9d2bd5
227 changed files with 7881 additions and 0 deletions
@@ -0,0 +1,54 @@
+using System.Globalization;
+
+namespace StevanFreeborn.Options.Tests;
+
+public class OptionAsyncExtensionsTests
+{
+  [Test]
+  public async Task MapAsync_WhenSome_ItShouldTransformValue()
+  {
+    var option = Option.Some(5);
+    var mapped = await option.MapAsync(x => Task.FromResult(x.ToString(CultureInfo.InvariantCulture)));
+
+    await Assert.That(mapped.IsSome).IsTrue();
+    await Assert.That(mapped.Value).IsEqualTo("5");
+  }
+
+  [Test]
+  public async Task BindAsync_WhenSome_ItShouldChainToBinderResult()
+  {
+    var option = Option.Some(5);
+    var bound = await option.BindAsync(x => Task.FromResult(Option.Some(x.ToString(CultureInfo.InvariantCulture))));
+
+    await Assert.That(bound.IsSome).IsTrue();
+    await Assert.That(bound.Value).IsEqualTo("5");
+  }
+
+  [Test]
+  public async Task MatchAsync_WhenSome_ItShouldInvokeOnSome()
+  {
+    var option = Option.Some("test");
+    var result = await option.MatchAsync(v => Task.FromResult(v.Length), () => Task.FromResult(0));
+
+    await Assert.That(result).IsEqualTo(4);
+  }
+
+  [Test]
+  public async Task WhereAsync_WhenPredicateMatches_ItShouldReturnSameOption()
+  {
+    var option = Option.Some(10);
+    var filtered = await option.WhereAsync(x => Task.FromResult(x > 5));
+
+    await Assert.That(filtered).IsEqualTo(option);
+  }
+
+  [Test]
+  public async Task OrElseAsync_WhenNone_ItShouldReturnFallbackOption()
+  {
+    var option = Option.None<string>();
+    var result = await option.OrElseAsync(() => Task.FromResult(Option.Some("fallback")));
+
+    await Assert.That(result.IsSome).IsTrue();
+    await Assert.That(result.Value).IsEqualTo("fallback");
+  }
+}