diff --git a/java-strings/src/test/java/com/baeldung/string/PanagramUnitTest.java b/java-strings/src/test/java/com/baeldung/string/PanagramUnitTest.java
new file mode 100644
index 0000000000..81d46956e2
--- /dev/null
+++ b/java-strings/src/test/java/com/baeldung/string/PanagramUnitTest.java
@@ -0,0 +1,44 @@
+package com.baeldung.string;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import org.junit.Test;
+
+
+public class PanagramUnitTest {
+    
+    @Test
+    public void givenValidString_isPanagram_shouldReturnSuccess() {
+        String input = "Two driven jocks help fax my big quiz";
+        assertTrue(Panagram.isPanagram(input));  
+        assertTrue(Panagram.isPanagramWithStreams(input));        
+    }
+    
+    @Test
+    public void givenNullString_isPanagram_shouldReturnFailure() {
+        String input = null;
+        assertFalse(Panagram.isPanagram(input));
+        assertFalse(Panagram.isPanagramWithStreams(input));
+        assertFalse(Panagram.isPerfectPanagram(input));
+    }
+    
+    @Test
+    public void givenPerfectPanagramString_isPerfectPanagram_shouldReturnSuccess() {
+        String input = "abcdefghijklmNoPqrStuVwxyz";
+        assertTrue(Panagram.isPerfectPanagram(input));         
+    }
+    
+    @Test
+    public void givenNonPanagramString_isPanagram_shouldReturnFailure() {
+        String input = "invalid panagram";
+        assertFalse(Panagram.isPanagram(input));
+        assertFalse(Panagram.isPanagramWithStreams(input));
+    }
+    
+    @Test
+    public void givenPanagram_isPerfectPanagram_shouldReturnFailure() {
+        String input = "Two driven jocks help fax my big quiz";
+        assertFalse(Panagram.isPerfectPanagram(input));
+    }
+
+}