diff --git a/AioNet.LinqTest/ExtendedLinqTest.cs b/AioNet.LinqTest/ExtendedLinqTest.cs
index b23879b..050f1e9 100644
--- a/AioNet.LinqTest/ExtendedLinqTest.cs
+++ b/AioNet.LinqTest/ExtendedLinqTest.cs
@@ -15,4 +15,27 @@ public class ExtendedLinqTest
         Assert.Contains(2, onlyCombination);
         Assert.Contains(3, onlyCombination);
     }
+
+    [Fact]
+    public void FindThreeCombinationsFor3Elements_SubsequenceLength2()
+    {
+        var foundCombinations = new[] { 1, 2, 3 }.Combinations(2);
+        Assert.True(foundCombinations.Count() == 3);
+    }
+
+    [Theory]
+    [InlineData(1)]
+    [InlineData(2)]
+    [InlineData(3)]
+    [InlineData(4)]
+    [InlineData(5)]
+    public void EachSubsequenceIsCorrectLength(int subsequenceLength)
+    {
+        var foundCombinations = new[] { 1, 2, 3, 4, 5, 6 }.Combinations(subsequenceLength);
+
+        foreach (var foundCombination in foundCombinations)
+        {
+            Assert.True(foundCombination.Count() == subsequenceLength);
+        }
+    }
 }