add test

hutool-core/src/test/java/cn/hutool/core/text/csv/Pr1244Test.java

@@ -0,0 +1,25 @@
+package cn.hutool.core.text.csv;
+
+import org.junit.Test;
+
+import java.io.StringReader;
+
+import static org.junit.Assert.assertEquals;
+
+/**
+ * 按照 https://datatracker.ietf.org/doc/html/rfc4180#section-2<br>
+ * 如果字段正文中出现双引号，需要使用两个双引号表示转义
+ */
+public class Pr1244Test {
+	@Test
+	public void csvReadTest() {
+		final String csv = "a,q\"\"e,d,f";
+		final CsvReader reader = CsvUtil.getReader(new StringReader(csv));
+		final CsvData read = reader.read();
+		assertEquals(4, read.getRow(0).size());
+		assertEquals("a", read.getRow(0).get(0));
+		assertEquals("q\"e", read.getRow(0).get(1));
+		assertEquals("d", read.getRow(0).get(2));
+		assertEquals("f", read.getRow(0).get(3));
+	}
+}