From c61590f26f6249a890ca198d039be72f9ca6fc82 Mon Sep 17 00:00:00 2001
From: Kyle Ratti <kyleratti@users.noreply.github.com>
Date: Fri, 3 May 2024 17:07:19 -0400
Subject: [PATCH] test: 100% test coverage of Result<TSuccess, TFailure>

---
 Base.Tests/Structures/ResultTests.cs | 65 ++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 Base.Tests/Structures/ResultTests.cs

diff --git a/Base.Tests/Structures/ResultTests.cs b/Base.Tests/Structures/ResultTests.cs
new file mode 100644
index 0000000..8d0013a
--- /dev/null
+++ b/Base.Tests/Structures/ResultTests.cs
@@ -0,0 +1,65 @@
+using System;
+using FruityFoundation.Base.Structures;
+using NUnit.Framework;
+
+namespace Base.Tests.Structures;
+
+public class ResultTests
+{
+	[Test]
+	public void Result_CreateSuccess_ReturnsSuccess()
+	{
+		// Arrange
+		var value = Result<int, string>.CreateSuccess(25);
+
+		// Act
+		var mergeResult = value.Merge(
+			onSuccess: _ => "onSuccess",
+			onFailure: _ => "onFailure");
+
+		// Assert
+		Assert.That(value, Is.InstanceOf<Result<int, string>>());
+		Assert.That(value.IsSuccess, Is.True);
+		Assert.That(value.IsFailure, Is.False);
+		Assert.That(value.SuccessVal, Is.EqualTo(25));
+		var failureValException = Assert.Throws<InvalidOperationException>(() => _ = value.FailureVal);
+		Assert.That(failureValException.Message, Is.EqualTo("Maybe value is empty"));
+
+		Assert.That(mergeResult, Is.EqualTo("onSuccess"));
+
+		Assert.That(value.TrySuccess(out var successVal), Is.True);
+		Assert.That(successVal, Is.EqualTo(25));
+
+		Assert.That(value.TryFailure(out var failureVal), Is.False);
+		Assert.That(failureVal, Is.Default);
+	}
+
+	[Test]
+	public void Result_CreateFailure_ReturnsFailure()
+	{
+		// Arrange
+		var value = Result<int, string>.CreateFailure("bananas aren't numbers");
+
+		// Act
+		var mergeResult = value.Merge(
+			onSuccess: _ => "onSuccess",
+			onFailure: _ => "onFailure");
+
+		// Assert
+		Assert.That(value, Is.InstanceOf<Result<int, string>>());
+		Assert.That(value.IsSuccess, Is.False);
+		Assert.That(value.IsFailure, Is.True);
+		Assert.That(value.FailureVal, Is.EqualTo("bananas aren't numbers"));
+
+		var successValException = Assert.Throws<InvalidOperationException>(() => _ = value.SuccessVal);
+		Assert.That(successValException.Message, Is.EqualTo("Maybe value is empty"));
+
+		Assert.That(mergeResult, Is.EqualTo("onFailure"));
+
+		Assert.That(value.TrySuccess(out var successVal), Is.False);
+		Assert.That(successVal, Is.Default);
+
+		Assert.That(value.TryFailure(out var failureVal), Is.True);
+		Assert.That(failureVal, Is.EqualTo("bananas aren't numbers"));
+	}
+}