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-rw-r--r--tests/utf.test9
1 files changed, 6 insertions, 3 deletions
diff --git a/tests/utf.test b/tests/utf.test
index a9485a8..3bf7b06 100644
--- a/tests/utf.test
+++ b/tests/utf.test
@@ -27,9 +27,12 @@ test utf-1.3 {Tcl_UniCharToUtf: 2 byte sequences} {
test utf-1.4 {Tcl_UniCharToUtf: 3 byte sequences} {
set x "\u4e4e"
} [bytestring "\xe4\xb9\x8e"]
-test utf-1.5 {Tcl_UniCharToUtf: negative Tcl_UniChar} {
- string length [format %c -1]
-} 1
+test utf-1.5 {Tcl_UniCharToUtf: overflowed Tcl_UniChar} {
+ format %c 0x110000
+} [bytestring "\xef\xbf\xbd"]
+test utf-1.6 {Tcl_UniCharToUtf: negative Tcl_UniChar} {
+ format %c -1
+} [bytestring "\xef\xbf\xbd"]
test utf-2.1 {Tcl_UtfToUniChar: low ascii} {
string length "abc"