fix code

hutool-core/src/test/java/cn/hutool/core/text/StrRegionMatcherTest.java

@@ -0,0 +1,56 @@
+package cn.hutool.core.text;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class StrRegionMatcherTest {
+	@Test
+	public void matchPrefixTest() {
+		final StrRegionMatcher matcher = new StrRegionMatcher(
+				false, false, true);
+		final boolean test = matcher.test("abcdef", "ab");
+		Assert.assertTrue(test);
+	}
+
+	@Test
+	public void matchSuffixTest() {
+		final StrRegionMatcher matcher = new StrRegionMatcher(
+				false, false, false);
+		final boolean test = matcher.test("abcdef", "ef");
+		Assert.assertTrue(test);
+	}
+
+	@Test
+	public void matchOffsetTest1() {
+		final StrRegionMatcher matcher = new StrRegionMatcher(
+				false, false, 1);
+		final boolean test = matcher.test("abcdef", "bc");
+		Assert.assertTrue(test);
+	}
+
+	@Test
+	public void matchOffsetTest2() {
+		final StrRegionMatcher matcher = new StrRegionMatcher(
+				false, false, -2);
+		final boolean test = matcher.test("abcdef", "de");
+		Assert.assertTrue(test);
+	}
+
+	@Test
+	public void matchOffsetTest3() {
+		// 部分越界
+		final StrRegionMatcher matcher = new StrRegionMatcher(
+				false, false, 5);
+		final boolean test = matcher.test("abcdef", "de");
+		Assert.assertFalse(test);
+	}
+
+	@Test
+	public void matchOffsetTest4() {
+		// 完全越界
+		final StrRegionMatcher matcher = new StrRegionMatcher(
+				false, false, 6);
+		final boolean test = matcher.test("abcdef", "de");
+		Assert.assertFalse(test);
+	}
+}