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Merge pull request #15513 from danielmcnally285/danielmcnally285_string_to_long 

BAEL-7368 - String to Long
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Maiklins 2024-01-02 20:30:07 +01:00 committed by GitHub
parent 984b1ac6e7 f94fd0ea86
commit 4d558554b5
1 changed files with 89 additions and 0 deletions
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core-java-modules/core-java-string-conversions-3/src/test/java/com/baeldung/stringtolong/StringToLongPrimitiveOrLongObjectUnitTest.java Normal file
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package com.baeldung.stringtolong;
import static org.assertj.core.api.Assertions.assertThat;
import org.apache.commons.lang3.math.NumberUtils;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
import com.google.common.primitives.Longs;
public class StringToLongPrimitiveOrLongObjectUnitTest {
@Test
void givenString_whenUsingLongConstructor_thenObtainLongObject() {
Long l = new Long("2147483648");
assertThat(l).isEqualTo(2147483648L);
}
@Test
void givenInvalidString_whenUsingLongConstructor_thenNumberFormatExceptionThrown() {
Assertions.assertThrows(NumberFormatException.class, () -> new Long("Invalid String"));
}
@Test
void givenString_whenUsingLongValueOf_thenObtainLongObject() {
Long l = Long.valueOf("2147483648");
assertThat(l).isEqualTo(2147483648L);
}
@Test
void givenInvalidString_whenUsingLongValueOf_thenNumberFormatExceptionThrown() {
Assertions.assertThrows(NumberFormatException.class, () -> Long.valueOf("Invalid String"));
}
@Test
void givenString_whenUsingParseLong_thenObtainLongPrimitive() {
long l = Long.parseLong("2147483648");
assertThat(l).isEqualTo(2147483648L);
}
@Test
void givenInvalidString_whenUsingParseLong_thenNumberFormatExceptionThrown() {
Assertions.assertThrows(NumberFormatException.class, () -> Long.parseLong("Invalid String"));
}
@Test
void givenHexadecimalString_whenUsingLongDecode_thenObtainLongObject() {
Long l = Long.decode("0x80000000");
assertThat(l).isEqualTo(2147483648L);
}
@Test
void givenInvalidString_whenUsingLongDecode_thenNumberFormatExceptionThrown() {
Assertions.assertThrows(NumberFormatException.class, () -> Long.decode("Invalid String"));
}
@Test
void givenHexadecimalString_whenUsingApacheCommonsNumberUtils_thenObtainLongObject() {
Long l = NumberUtils.createLong("0x80000000");
assertThat(l).isEqualTo(2147483648L);
}
@Test
void givenInvalidString_whenUsingApacheCommonsNumberUtils_thenNumberFormatExceptionThrown() {
Assertions.assertThrows(NumberFormatException.class, () -> NumberUtils.createLong("Invalid String"));
}
@Test
void givenString_whenUsingParseUnsignedLong_thenObtainUnsignedLongObject() {
Long l = Long.parseUnsignedLong("9223372036854775808");
assertThat(Long.toUnsignedString(l)).isEqualTo("9223372036854775808");
}
@Test
void givenInvalidString_whenUsingParseUnsignedLong_thenNumberFormatExceptionThrown() {
Assertions.assertThrows(NumberFormatException.class, () -> Long.parseUnsignedLong("Invalid String"));
}
@Test
void givenString_whenUsingGuavaLongs_thenObtainLongObject() {
Long l = Longs.tryParse("2147483648");
assertThat(l).isEqualTo(2147483648L);
}
@Test
void givenInvalidString_whenUsingGuavaLongs_thenObtainNull() {
assertThat(Longs.tryParse("Invalid String")).isNull();
}
}