27 lines
1.0 KiB
Java
27 lines
1.0 KiB
Java
package com.baeldung.string.isnumeric;
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import static org.assertj.core.api.Assertions.assertThat;
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import org.apache.commons.lang3.math.NumberUtils;
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import org.junit.Test;
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public class NumberUtilsIsParsableUnitTest {
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@Test
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public void givenApacheCommons_whenUsingIsParsable_thenTrue() {
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// Valid Numbers
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assertThat(NumberUtils.isParsable("22")).isTrue();
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assertThat(NumberUtils.isParsable("-23")).isTrue();
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assertThat(NumberUtils.isParsable("2.2")).isTrue();
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assertThat(NumberUtils.isParsable("09")).isTrue();
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// Invalid Numbers
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assertThat(NumberUtils.isParsable(null)).isFalse();
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assertThat(NumberUtils.isParsable("")).isFalse();
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assertThat(NumberUtils.isParsable("6.2f")).isFalse();
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assertThat(NumberUtils.isParsable("9.8d")).isFalse();
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assertThat(NumberUtils.isParsable("22L")).isFalse();
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assertThat(NumberUtils.isParsable("0xFF")).isFalse();
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assertThat(NumberUtils.isParsable("2.99e+8")).isFalse();
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}
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}
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