created some unit tests

ComiServUnitTest/TruncatedTests.cs

@@ -0,0 +1,67 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComiServ.Models;
+
+namespace ComiServUnitTest;
+
+[TestClass]
+public class TruncatedTests
+{
+	[TestMethod]
+	public void TruncationUnderflow()
+	{
+		const int truncMax = 20;
+		const int dataSize = 10;
+		var data = Enumerable.Range(0, dataSize).ToArray();
+		var trunc = new Truncated<int>(truncMax, data);
+		Assert.IsTrue(trunc.Complete);
+		Assert.AreEqual(truncMax, trunc.Max);
+		Assert.AreEqual(dataSize, trunc.Count);
+		Assert.AreEqual(trunc.Items.Count, trunc.Count);
+		Assert.AreEqual(data.First(), trunc.Items.First());
+		Assert.AreEqual(data.Last(), trunc.Items.Last());
+	}
+	[TestMethod]
+	public void TruncationOverflow()
+	{
+		const int truncMax = 20;
+		const int dataSize = 30;
+		var data = Enumerable.Range(0, dataSize).ToArray();
+		var trunc = new Truncated<int>(truncMax, data);
+		Assert.IsFalse(trunc.Complete);
+		Assert.AreEqual(truncMax, trunc.Max);
+		Assert.AreEqual(truncMax, trunc.Count);
+		Assert.AreEqual(trunc.Items.Count, trunc.Count);
+		Assert.AreEqual(data.First(), trunc.Items.First());
+		Assert.AreEqual(truncMax - 1, trunc.Items.Last());
+	}
+	[TestMethod]
+	public void TruncationExact()
+	{
+		const int truncMax = 5;
+		const int dataSize = 5;
+		var data = Enumerable.Range(0, dataSize).ToArray();
+		var trunc = new Truncated<int>(truncMax, data);
+		Assert.IsTrue(trunc.Complete);
+		Assert.AreEqual(truncMax, trunc.Max);
+		Assert.AreEqual(truncMax, trunc.Count);
+		Assert.AreEqual(trunc.Items.Count, trunc.Count);
+		Assert.AreEqual(data.First(), trunc.Items.First());
+		Assert.AreEqual(data.Last(), trunc.Items.Last());
+	}
+	[TestMethod]
+	public void TruncationEmpty()
+	{
+		const int truncMax = 5;
+		const int dataSize = 0;
+		var data = Enumerable.Range(0, dataSize).ToArray();
+		var trunc = new Truncated<int>(truncMax, data);
+		Assert.IsTrue(trunc.Complete);
+		Assert.AreEqual(truncMax, trunc.Max);
+		Assert.AreEqual(0, trunc.Count);
+		Assert.AreEqual(trunc.Items.Count, trunc.Count);
+	}
+}