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[int-to-short] add intToShort()

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This commit is contained in:
Kai.Yuan 2024-04-24 21:28:19 +02:00
parent 809460c99d
commit 7b3b52c224
1 changed files with 19 additions and 0 deletions
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core-java-modules/core-java-numbers-conversions-2/src/test/java/com/baeldung/inttoshort/ConvertIntToShortUnitTest.java
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@ -1,6 +1,7 @@
package com.baeldung.inttoshort; package com.baeldung.inttoshort;
import static org.junit.jupiter.api.Assertions.assertEquals; import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;
import org.junit.jupiter.api.Test; import org.junit.jupiter.api.Test;
@ -33,4 +34,22 @@ class ConvertIntToShortUnitTest {
assertEquals(-31616, result); assertEquals(-31616, result);
} }
short intToShort(int i) {
if (i < Short.MIN_VALUE || i > Short.MAX_VALUE) {
throw new IllegalArgumentException("Int is out of short range");
}
return (short) i;
}
@Test
void whenCheckShortRangeBeforeCasting_thenGetExpectedResult() {
short expected = 42;
int int42 = 42;
assertEquals(expected, intToShort(int42));
int oneMillion = 1_000_000;
assertThrows(IllegalArgumentException.class, () -> intToShort(oneMillion));
}
} }