1 files changed, 15 insertions, 0 deletions
diff --git a/tests/encoding.test b/tests/encoding.test
index ed37928..ecc439d 100644
--- a/tests/encoding.test
+++ b/tests/encoding.test
@@ -429,6 +429,21 @@ test encoding-15.21 {UtfToUtfProc CESU-8 noncharacter} {
     binary scan $y H* z
     list [string length $y] $z
 } {3 efbfbf}
+test encoding-15.22 {UtfToUtfProc CESU-8 bug [048dd20b4171c8da]} {
+    set y [encoding convertto cesu-8 \x80]
+    binary scan $y H* z
+    list [string length $y] $z
+} {2 c280}
+test encoding-15.23 {UtfToUtfProc CESU-8 bug [048dd20b4171c8da]} {
+    set y [encoding convertto cesu-8 \u100]
+    binary scan $y H* z
+    list [string length $y] $z
+} {2 c480}
+test encoding-15.24 {UtfToUtfProc CESU-8 bug [048dd20b4171c8da]} {
+    set y [encoding convertto cesu-8 \u3FF]
+    binary scan $y H* z
+    list [string length $y] $z
+} {2 cfbf}
 
 test encoding-16.1 {Utf16ToUtfProc} -body {
     set val [encoding convertfrom utf-16 NN]