diff --git a/core-java-modules/core-java-string-conversions-2/src/test/java/com/baeldung/stringtobybiginteger/StringToBigIntegerUnitTest.java b/core-java-modules/core-java-string-conversions-2/src/test/java/com/baeldung/stringtobybiginteger/StringToBigIntegerUnitTest.java
index d3b6467eab..b535797d44 100644
--- a/core-java-modules/core-java-string-conversions-2/src/test/java/com/baeldung/stringtobybiginteger/StringToBigIntegerUnitTest.java
+++ b/core-java-modules/core-java-string-conversions-2/src/test/java/com/baeldung/stringtobybiginteger/StringToBigIntegerUnitTest.java
@@ -7,38 +7,38 @@ import java.math.BigInteger;
 import org.junit.Test;
 
 public class StringToBigIntegerUnitTest {
-	
-	@Test
-	public void whenGetStringWithOutRadix_thenOK() {
-		final String inputString = "878";
-		BigInteger result = new BigInteger(inputString);
-		assertEquals("878", result.toString());
-	}
 
-	@Test
-	public void whenGetStringWithRadix_thenOK() {
-		final String inputString = "290f98";
-		BigInteger result = new BigInteger(inputString, 16);
-		assertEquals("2690968", result.toString());
-	}
+    @Test
+    public void whenGetStringWithOutRadix_thenOK() {
+        final String inputString = "878";
+        BigInteger result = new BigInteger(inputString);
+        assertEquals("878", result.toString());
+    }
 
-	@Test(expected = NumberFormatException.class)
-	public void whenGetStringWithOutRadix_thenThrowError() {
-		final String inputString = "290f98";
-		new BigInteger(inputString);
-	}
+    @Test
+    public void whenGetStringWithRadix_thenOK() {
+        final String inputString = "290f98";
+        BigInteger result = new BigInteger(inputString, 16);
+        assertEquals("2690968", result.toString());
+    }
 
-	@Test(expected = NumberFormatException.class)
-	public void whenGetStringWithRadix_thenThrowError() {
-		final String inputString = "Hello Baeldung";
-		new BigInteger(inputString, 7);
-	}
+    @Test(expected = NumberFormatException.class)
+    public void whenGetStringWithOutRadix_thenThrowError() {
+        final String inputString = "290f98";
+        new BigInteger(inputString);
+    }
 
-	@Test
-	public void whenGetStringUsingByte_thenOk() {
-		final String inputString = "Hello Baeldung";
-		byte[] inputStringBytes = inputString.getBytes();
-		BigInteger result = new BigInteger(inputStringBytes);
-		assertEquals("Hello Baeldung", new String(result.toByteArray()));
-	}
+    @Test(expected = NumberFormatException.class)
+    public void whenGetStringWithRadix_thenThrowError() {
+        final String inputString = "Hello Baeldung";
+        new BigInteger(inputString, 7);
+    }
+
+    @Test
+    public void whenGetStringUsingByte_thenOk() {
+        final String inputString = "Hello Baeldung";
+        byte[] inputStringBytes = inputString.getBytes();
+        BigInteger result = new BigInteger(inputStringBytes);
+        assertEquals("Hello Baeldung", new String(result.toByteArray()));
+    }
 }