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add methods

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This commit is contained in:
Looly
2021-08-26 23:27:37 +08:00
parent ea976bc25b
commit 8adf96eaab
8 changed files with 173 additions and 27 deletions
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3
hutool-core/src/test/java/cn/hutool/core/collection/CollStreamUtilTest.java
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@@ -81,6 +81,7 @@ public class CollStreamUtilTest {
Assert.assertEquals(map, compare);
}
@Test
public void testGroupBy2Key() {
Map<Long, Map<Long, List<Student>>> map = CollStreamUtil.groupBy2Key(null, Student::getTermId, Student::getClassId);
Assert.assertEquals(map, Collections.EMPTY_MAP);
@@ -229,4 +230,4 @@ public class CollStreamUtilTest {
private long studentId;//班级id
private String name;//学生名称
}
}
}

31
hutool-core/src/test/java/cn/hutool/core/collection/PartitionIterTest.java Normal file
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@@ -0,0 +1,31 @@
package cn.hutool.core.collection;
import cn.hutool.core.io.resource.ResourceUtil;
import cn.hutool.core.util.NumberUtil;
import org.junit.Assert;
import org.junit.Test;
import java.util.List;
public class PartitionIterTest {
@Test
public void iterTest() {
final LineIter lineIter = new LineIter(ResourceUtil.getUtf8Reader("test_lines.csv"));
final PartitionIter<String> iter = new PartitionIter<>(lineIter.iterator(), 3);
for (List<String> lines : iter) {
Assert.assertTrue(lines.size() > 0);
}
}
@Test
public void iterMaxTest() {
final List<Integer> list = ListUtil.of(1, 2, 3, 4, 5, 6, 7, 8, 9, 9, 0, 12, 45, 12);
final PartitionIter<Integer> iter = new PartitionIter<>(list.iterator(), 3);
int max = 0;
for (List<Integer> lines : iter) {
max = NumberUtil.max(max, NumberUtil.max(lines.toArray(new Integer[0])));
}
Assert.assertEquals(45, max);
}
}

12
hutool-core/src/test/java/cn/hutool/core/io/IoUtilTest.java
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@@ -4,6 +4,9 @@ import cn.hutool.core.io.resource.ResourceUtil;
import org.junit.Assert;
import org.junit.Test;
import java.io.BufferedReader;
import java.io.IOException;
public class IoUtilTest {
@Test
@@ -11,4 +14,13 @@ public class IoUtilTest {
final byte[] bytes = IoUtil.readBytes(ResourceUtil.getStream("hutool.jpg"));
Assert.assertEquals(22807, bytes.length);
}
@Test
public void readLinesTest(){
try(BufferedReader reader = ResourceUtil.getUtf8Reader("test_lines.csv");){
IoUtil.readLines(reader, (LineHandler) Assert::assertNotNull);
} catch (IOException e) {
throw new IORuntimeException(e);
}
}
}