35 lines
1.0 KiB
Java
35 lines
1.0 KiB
Java
package com.baeldung.bigdecimalzero;
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import static org.assertj.core.api.Assertions.assertThat;
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import java.math.BigDecimal;
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import org.junit.jupiter.api.Test;
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class BigDecimalZeroChkUnitTest {
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private static final BigDecimal BD1 = new BigDecimal("0");
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private static final BigDecimal BD2 = new BigDecimal("0.0000");
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@Test
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void givenBD_whenCheckedWithEquals_shouldCheckedAsZero() {
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assertThat(BigDecimal.ZERO.equals(BD1)).isTrue();
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// in the article, we show the failure of the assertion below
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// assertThat(BigDecimal.ZERO.equals(BD2)).isTrue();
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assertThat(BigDecimal.ZERO.equals(BD2)).isFalse();
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}
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@Test
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void givenBD_whenCheckedWithCompareTo_shouldCheckedAsZero() {
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assertThat(BigDecimal.ZERO.compareTo(BD1)).isSameAs(0);
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assertThat(BigDecimal.ZERO.compareTo(BD2)).isSameAs(0);
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}
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@Test
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void givenBD_whenCheckedWithSignum_shouldCheckedAsZero() {
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assertThat(BD1.signum()).isSameAs(0);
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assertThat(BD2.signum()).isSameAs(0);
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}
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}
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