BAEL-4960: Test for conversion
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package com.baeldung.stringtobybiginteger;
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import static org.junit.Assert.assertEquals;
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import java.math.BigInteger;
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import org.junit.Test;
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public class StringToBigIntegerUnitTest {
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@Test
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public void whenGetStringWithOutRadix_thenOK() {
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final String inputString = "878";
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BigInteger result = new BigInteger(inputString);
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assertEquals("878", result.toString());
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}
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@Test
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public void whenGetStringWithRadix_thenOK() {
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final String inputString = "290f98";
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BigInteger result = new BigInteger(inputString, 16);
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assertEquals("2690968", result.toString());
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}
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@Test(expected = NumberFormatException.class)
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public void whenGetStringWithOutRadix_thenThrowError() {
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final String inputString = "290f98";
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new BigInteger(inputString);
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}
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@Test(expected = NumberFormatException.class)
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public void whenGetStringWithRadix_thenThrowError() {
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final String inputString = "Hello Baeldung";
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new BigInteger(inputString, 7);
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}
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@Test
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public void whenGetStringUsingByte_thenOk() {
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final String inputString = "Hello Baeldung";
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byte[] inputStringBytes = inputString.getBytes();
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BigInteger result = new BigInteger(inputStringBytes);
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assertEquals("Hello Baeldung", new String(result.toByteArray()));
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}
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}
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