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Merge pull request #10917 from amitiw4u/BAEL-4960-StringToBigInt 

Bael 4960 string to big int
This commit is contained in:
Greg 2021-07-11 16:37:26 -04:00 committed by GitHub
parent 4f3f287923 218f67ef4c
commit e056bc4f34
1 changed files with 44 additions and 0 deletions
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core-java-modules/core-java-string-conversions-2/src/test/java/com/baeldung/stringtobybiginteger/StringToBigIntegerUnitTest.java Normal file
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package com.baeldung.stringtobybiginteger;
import static org.junit.Assert.assertEquals;
import java.math.BigInteger;
import org.junit.Test;
public class StringToBigIntegerUnitTest {
@Test
public void whenGetStringWithOutRadix_thenOK() {
String inputString = "878";
BigInteger result = new BigInteger(inputString);
assertEquals("878", result.toString());
}
@Test
public void whenGetStringWithRadix_thenOK() {
String inputString = "290f98";
BigInteger result = new BigInteger(inputString, 16);
assertEquals("2690968", result.toString());
}
@Test(expected = NumberFormatException.class)
public void whenGetStringWithOutRadix_thenThrowError() {
String inputString = "290f98";
new BigInteger(inputString);
}
@Test(expected = NumberFormatException.class)
public void whenGetStringWithRadix_thenThrowError() {
String inputString = "290f98";
new BigInteger(inputString, 7);
}
@Test
public void whenGetStringUsingByte_thenOk() {
String inputString = "290f98";
byte[] inputStringBytes = inputString.getBytes();
BigInteger result = new BigInteger(inputStringBytes);
assertEquals("290f98", new String(result.toByteArray()));
}
}