Replaced tabs by spaces

libraries/src/test/java/com/baeldung/hikaricp/HikariCPUnitTest.java

@@ -8,10 +8,10 @@ import static org.junit.Assert.assertEquals;
 
 public class HikariCPUnitTest {
 
-	@Test
-	public void givenConnection_thenFetchDbData() {
-		List<Employee> employees = HikariCPDemo.fetchData();
-		assertEquals(4, employees.size());
-	}
+    @Test
+    public void givenConnection_thenFetchDbData() {
+        List<Employee> employees = HikariCPDemo.fetchData();
+        assertEquals(4, employees.size());
+    }
 
 }