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返回对象增加自定义处理后返回，如果不存在则返回用户定义类型的默认对象.

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liliexuan
2020-10-23 12:43:45 +08:00
parent cde74fe319
commit 34f20cb4d5
2 changed files with 69 additions and 6 deletions
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37
hutool-core/src/test/java/cn/hutool/core/util/ObjectUtilTest.java
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@@ -1,12 +1,14 @@
package cn.hutool.core.util;
import java.util.ArrayList;
import org.junit.Assert;
import org.junit.Test;
import cn.hutool.core.clone.CloneSupport;
import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.date.DatePattern;
import cn.hutool.core.date.DateUtil;
import org.junit.Assert;
import org.junit.Test;
import java.time.Instant;
import java.util.ArrayList;
public class ObjectUtilTest {
@@ -29,4 +31,29 @@ public class ObjectUtilTest {
String result = ObjectUtil.toString(strings);
Assert.assertEquals("[1, 2]", result);
}
@Test
public void defaultIfNullTest() {
final String nullValue = null;
final String dateStr = "2020-10-23 15:12:30";
Instant result1 = ObjectUtil.defaultIfNull(dateStr,
() -> DateUtil.parse(dateStr, DatePattern.NORM_DATETIME_PATTERN).toInstant(), Instant.now());
Assert.assertNotNull(result1);
Instant result2 = ObjectUtil.defaultIfNull(nullValue,
() -> DateUtil.parse(nullValue, DatePattern.NORM_DATETIME_PATTERN).toInstant(), Instant.now());
Assert.assertNotNull(result2);
}
@Test
public void defaultIfEmptyTest() {
final String emptyValue = "";
final String dateStr = "2020-10-23 15:12:30";
Instant result1 = ObjectUtil.defaultIfEmpty(emptyValue,
() -> DateUtil.parse(emptyValue, DatePattern.NORM_DATETIME_PATTERN).toInstant(), Instant.now());
Assert.assertNotNull(result1);
Instant result2 = ObjectUtil.defaultIfEmpty(dateStr,
() -> DateUtil.parse(dateStr, DatePattern.NORM_DATETIME_PATTERN).toInstant(), Instant.now());
Assert.assertNotNull(result2);
}
}