diff --git a/fileutil/testdata/test1.csv b/fileutil/testdata/test1.csv
index c8961e7..ce44349 100644
--- a/fileutil/testdata/test1.csv
+++ b/fileutil/testdata/test1.csv
@@ -1,2 +1,3 @@
 Lili,22,female
 Jim,21,male
+
diff --git a/fileutil/testdata/test2.csv b/fileutil/testdata/test2.csv
index c8961e7..ce44349 100644
--- a/fileutil/testdata/test2.csv
+++ b/fileutil/testdata/test2.csv
@@ -1,2 +1,3 @@
 Lili,22,female
 Jim,21,male
+