Add a test for average (TheAlgorithms#3084)

thanhtri122002 · thanhtri122002 · siriak · web-flow · commit 45f3e5b6def3 · 2022-06-08T18:19:42.000+03:00
Co-authored-by: thanhtri122002 &lt;thanhnt122002@122002&gt;
Co-authored-by: Andrii Siriak &lt;siryaka@gmail.com&gt;
diff --git a/src/test/java/com/thealgorithms/maths/AverageTest.java b/src/test/java/com/thealgorithms/maths/AverageTest.java
@@ -0,0 +1,14 @@
+package com.thealgorithms.maths;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+
+public class AverageTest {
+    double [] numbers = {3, 6, 9, 12, 15, 18, 21};
+    @Test
+    public void testAverage() {
+        
+        Assertions.assertEquals(12, Average.average(numbers));
+    }
+}
