diff --git a/test/test_files/encoding/Txtfiles/GB2312-80 (issue #2981).txt b/test/test_files/encoding/Txtfiles/GB2312-80 (issue #2981).txt
index 4830c4eee..1fffed294 100644
--- a/test/test_files/encoding/Txtfiles/GB2312-80 (issue #2981).txt	
+++ b/test/test_files/encoding/Txtfiles/GB2312-80 (issue #2981).txt	
@@ -1 +1,5 @@
-您好A
\ No newline at end of file
+您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A
+您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A
+您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A
+您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A
+您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A 您好A
diff --git a/test/test_files/encoding/Txtfiles/HZ-GB2312 (issue #2981).txt b/test/test_files/encoding/Txtfiles/HZ-GB2312 (issue #2981).txt
index b27511b40..6572422a5 100644
--- a/test/test_files/encoding/Txtfiles/HZ-GB2312 (issue #2981).txt	
+++ b/test/test_files/encoding/Txtfiles/HZ-GB2312 (issue #2981).txt	
@@ -1 +1,5 @@
-~{Dz:C~}A
\ No newline at end of file
+~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A
+~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A
+~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A
+~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A
+~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A ~{Dz:C~}A