From 219561b43b1477f1066d7c3715c9cb9b43e51162 Mon Sep 17 00:00:00 2001
From: Looly <loolly@gmail.com>
Date: Mon, 14 Feb 2022 01:57:05 +0800
Subject: [PATCH] add comment

---
 .../cn/hutool/core/text/csv/package-info.java |  5 +++--
 .../cn/hutool/core/date/DateUtilTest.java     |  8 ++++----
 .../hutool/core/text/csv/CsvParserTest.java   | 20 +++++++++++++++----
 3 files changed, 23 insertions(+), 10 deletions(-)

diff --git a/hutool-core/src/main/java/cn/hutool/core/text/csv/package-info.java b/hutool-core/src/main/java/cn/hutool/core/text/csv/package-info.java
index bc6af864b..7863d5c06 100644
--- a/hutool-core/src/main/java/cn/hutool/core/text/csv/package-info.java
+++ b/hutool-core/src/main/java/cn/hutool/core/text/csv/package-info.java
@@ -1,7 +1,8 @@
 /**
- * 提供CSV文件读写的封装，入口为CsvUtil
+ * 提供CSV文件读写的封装，入口为CsvUtil<br>
+ * 规范见：https://datatracker.ietf.org/doc/html/rfc4180
  *
  * @author looly
  *
  */
-package cn.hutool.core.text.csv;
\ No newline at end of file
+package cn.hutool.core.text.csv;
diff --git a/hutool-core/src/test/java/cn/hutool/core/date/DateUtilTest.java b/hutool-core/src/test/java/cn/hutool/core/date/DateUtilTest.java
index 1e65175fb..8b9dd7500 100644
--- a/hutool-core/src/test/java/cn/hutool/core/date/DateUtilTest.java
+++ b/hutool-core/src/test/java/cn/hutool/core/date/DateUtilTest.java
@@ -3,7 +3,6 @@ package cn.hutool.core.date;
 import cn.hutool.core.collection.CollUtil;
 import cn.hutool.core.date.BetweenFormatter.Level;
 import cn.hutool.core.date.format.FastDateFormat;
-import cn.hutool.core.lang.Console;
 import cn.hutool.core.util.RandomUtil;
 import org.junit.Assert;
 import org.junit.Test;
@@ -692,7 +691,6 @@ public class DateUtilTest {
 	@Test
 	public void parseCSTTest() {
 		String dateStr = "Wed Sep 16 11:26:23 CST 2009";
-		Console.log(TimeZone.getDefault().getDisplayName());
 
 		SimpleDateFormat sdf = new SimpleDateFormat(DatePattern.JDK_DATETIME_PATTERN, Locale.US);
 		// Asia/Shanghai是以地区命名的地区标准时，在中国叫CST，因此如果解析CST时不使用"Asia/Shanghai"而使用"GMT+08:00"，会导致相差一个小时
@@ -995,11 +993,13 @@ public class DateUtilTest {
 
 	@Test
 	public void parseSingleMonthAndDayTest() {
-		final DateTime parse = DateUtil.parse("2021-1-1");
+		DateTime parse = DateUtil.parse("2021-1-1");
 		Assert.assertNotNull(parse);
 		Assert.assertEquals("2021-01-01 00:00:00", parse.toString());
 
-		Console.log(DateUtil.parse("2021-1-22 00:00:00"));
+		parse = DateUtil.parse("2021-1-22 00:00:00");
+		Assert.assertNotNull(parse);
+		Assert.assertEquals("2021-01-22 00:00:00", parse.toString());
 	}
 
 	@Test
diff --git a/hutool-core/src/test/java/cn/hutool/core/text/csv/CsvParserTest.java b/hutool-core/src/test/java/cn/hutool/core/text/csv/CsvParserTest.java
index e1a27b206..e8fc851e8 100644
--- a/hutool-core/src/test/java/cn/hutool/core/text/csv/CsvParserTest.java
+++ b/hutool-core/src/test/java/cn/hutool/core/text/csv/CsvParserTest.java
@@ -8,7 +8,7 @@ import org.junit.Test;
 import java.io.StringReader;
 
 public class CsvParserTest {
-	
+
 	@Test
 	public void parseTest1() {
 		StringReader reader = StrUtil.getReader("aaa,b\"bba\",ccc");
@@ -18,7 +18,7 @@ public class CsvParserTest {
 		Assert.assertEquals("b\"bba\"", row.getRawList().get(1));
 		IoUtil.close(parser);
 	}
-	
+
 	@Test
 	public void parseTest2() {
 		StringReader reader = StrUtil.getReader("aaa,\"bba\"bbb,ccc");
@@ -28,7 +28,7 @@ public class CsvParserTest {
 		Assert.assertEquals("\"bba\"bbb", row.getRawList().get(1));
 		IoUtil.close(parser);
 	}
-	
+
 	@Test
 	public void parseTest3() {
 		StringReader reader = StrUtil.getReader("aaa,\"bba\",ccc");
@@ -38,7 +38,7 @@ public class CsvParserTest {
 		Assert.assertEquals("bba", row.getRawList().get(1));
 		IoUtil.close(parser);
 	}
-	
+
 	@Test
 	public void parseTest4() {
 		StringReader reader = StrUtil.getReader("aaa,\"\",ccc");
@@ -48,4 +48,16 @@ public class CsvParserTest {
 		Assert.assertEquals("", row.getRawList().get(1));
 		IoUtil.close(parser);
 	}
+
+	@Test
+	public void parseEscapeTest(){
+		// https://datatracker.ietf.org/doc/html/rfc4180#section-2
+		// 第七条规则
+		StringReader reader = StrUtil.getReader("\"b\"\"bb\"");
+		CsvParser parser = new CsvParser(reader, null);
+		CsvRow row = parser.nextRow();
+		Assert.assertNotNull(row);
+		Assert.assertEquals(1, row.size());
+		Assert.assertEquals("b\"bb", row.get(0));
+	}
 }