Merge bug-fb368527ae. Bug [fb368527ae] Large string truncation

1 files changed, 26 insertions, 0 deletions

diff --git a/tests/encoding.test b/tests/encoding.test
index e0e1598..8b14353 100644
--- a/tests/encoding.test
+++ b/tests/encoding.test
@@ -1046,6 +1046,32 @@ test encoding-29.0 {get encoding nul terminator lengths} -constraints {
         [testencoding nullength ksc5601]
 } -result {1 2 4 2 2}
 
+test encoding-30.0 {encoding convertto large strings UINT_MAX} -constraints {
+    perf
+} -body {
+    # Test to ensure not misinterpreted as -1
+    list [string length [set s [string repeat A 0xFFFFFFFF]]] [string equal $s [encoding convertto ascii $s]]
+} -result {4294967295 1}
+
+test encoding-30.1 {encoding convertto large strings > 4GB} -constraints {
+    perf
+} -body {
+    list [string length [set s [string repeat A 0x100000000]]] [string equal $s [encoding convertto ascii $s]]
+} -result {4294967296 1}
+
+test encoding-30.2 {encoding convertfrom large strings UINT_MAX} -constraints {
+    perf
+} -body {
+    # Test to ensure not misinterpreted as -1
+    list [string length [set s [string repeat A 0xFFFFFFFF]]] [string equal $s [encoding convertfrom ascii $s]]
+} -result {4294967295 1}
+
+test encoding-30.3 {encoding convertfrom large strings > 4GB} -constraints {
+    perf
+} -body {
+    list [string length [set s [string repeat A 0x100000000]]] [string equal $s [encoding convertfrom ascii $s]]
+} -result {4294967296 1}
+
 
 # cleanup
 namespace delete ::tcl::test::encoding