diff --git a/algorithms/src/test/java/com/baeldung/algorithms/mergesort/MergeSortTest.java b/algorithms/src/test/java/com/baeldung/algorithms/mergesort/MergeSortTest.java
deleted file mode 100644
index 5c304ba7fe..0000000000
--- a/algorithms/src/test/java/com/baeldung/algorithms/mergesort/MergeSortTest.java
+++ /dev/null
@@ -1,25 +0,0 @@
-package com.baeldung.algorithms.mergesort;
-
-import static org.junit.jupiter.api.Assertions.*;
-
-import org.junit.jupiter.api.Test;
-
-class MergeSortTest {
-
-    @Test
-    void positiveTest() {
-        int[] input = { 5, 1, 6, 2, 3, 4 };
-        int[] expected = { 1, 2, 3, 4, 5, 6 };
-        MergeSort.mergeSort(input, input.length);
-        assertArrayEquals(expected, input);
-    }
-
-    @Test
-    void negativeTest() {
-        int[] input = { 5, 1, 6, 2, 3, 4 };
-        int[] expected = { 1, 2, 3, 4, 6, 5 };
-        MergeSort.mergeSort(input, input.length);
-        assertArrayEquals(expected, input);
-    }
-
-}
diff --git a/algorithms/src/test/java/com/baeldung/algorithms/mergesort/MergeSortUnitTest.java b/algorithms/src/test/java/com/baeldung/algorithms/mergesort/MergeSortUnitTest.java
new file mode 100644
index 0000000000..c46bac041f
--- /dev/null
+++ b/algorithms/src/test/java/com/baeldung/algorithms/mergesort/MergeSortUnitTest.java
@@ -0,0 +1,26 @@
+package com.baeldung.algorithms.mergesort;
+
+import org.junit.Assert;
+
+import org.junit.Test;
+
+public class MergeSortUnitTest {
+
+    @Test
+    public void positiveTest() {
+        int[] actual = { 5, 1, 6, 2, 3, 4 };
+        int[] expected = { 1, 2, 3, 4, 5, 6 };
+        MergeSort.mergeSort(actual, actual.length);
+        Assert.assertArrayEquals(expected, actual);
+    }
+
+    @Test
+    public void negativeTest() {
+        int[] actual = { 5, 1, 6, 2, 3, 4 };
+        int[] expected = { 1, 2, 3, 4, 6, 5 };
+        MergeSort.mergeSort(actual, actual.length);
+        Assert.assertArrayEquals(expected, actual);
+
+    }
+
+}