add test

hutool-core/src/main/java/cn/hutool/core/text/StrSplitter.java

@@ -416,11 +416,7 @@ public class StrSplitter {
 	 * @return 截取后的字符串数组
 	 */
 	public static String[] splitByLength(String text, int len) {
-		SplitIter splitIter = new SplitIter(text,
-				new LengthFinder(len),
-				Integer.MAX_VALUE,
-				false
-		);
+		SplitIter splitIter = new SplitIter(text, new LengthFinder(len), -1, false);
 		return splitIter.toArray(false);
 	}
 	//---------------------------------------------------------------------------------------------------------- Private method start

hutool-core/src/test/java/cn/hutool/core/text/split/SplitIterTest.java

@@ -25,6 +25,19 @@ public class SplitIterTest {
 		Assert.assertEquals(6, splitIter.toList(false).size());
 	}
 
+	@Test
+	public void splitByCharIgnoreCaseTest(){
+		String str1 = "a, ,,eAedsas,   ddf,";
+
+		//不忽略""
+		SplitIter splitIter = new SplitIter(str1,
+				new CharFinder('a', true),
+				Integer.MAX_VALUE,
+				false
+		);
+		Assert.assertEquals(4, splitIter.toList(false).size());
+	}
+
 	@Test
 	public void splitByCharIgnoreEmptyTest(){
 		String str1 = "a, ,,efedsfs,   ddf,";
@@ -39,6 +52,23 @@ public class SplitIterTest {
 		Assert.assertEquals(4, strings.size());
 	}
 
+	@Test
+	public void splitByCharTrimTest(){
+		String str1 = "a, ,,efedsfs,   ddf,";
+
+		SplitIter splitIter = new SplitIter(str1,
+				new CharFinder(',', false),
+				Integer.MAX_VALUE,
+				true
+		);
+
+		final List<String> strings = splitIter.toList(true);
+		Assert.assertEquals(3, strings.size());
+		Assert.assertEquals("a", strings.get(0));
+		Assert.assertEquals("efedsfs", strings.get(1));
+		Assert.assertEquals("ddf", strings.get(2));
+	}
+
 	@Test
 	public void splitByStrTest(){
 		String str1 = "a, ,,efedsfs,   ddf,";