[Bug-1630271]: segfault/infinite loop when a mark is before -startline

1 files changed, 37 insertions, 3 deletions

diff --git a/tests/textMark.test b/tests/textMark.test
index 174f674..c1138ac 100644
--- a/tests/textMark.test
+++ b/tests/textMark.test
@@ -136,6 +136,40 @@ test textMark-6.1 {TkTextMarkSegToIndex} haveCourier12 {
     .t mark set d 1.4
     list [.t index a] [.t index b] [.t index c ] [.t index d]
 } {1.2 1.2 1.2 1.4}
+test textMark-6.2 {TkTextMarkNameToIndex, with mark outside -startline/-endline range - bug 1630271} -body {
+  .t mark set insert 1.0
+  .t configure -startline 2
+  set res [list [.t index insert] [.t index insert-1c] [.t get insert]]
+  .t mark set insert end
+  .t configure -endline 4
+  lappend res [.t index insert]
+} -cleanup {
+  .t configure -startline {} -endline {}
+} -result {1.0 1.0 a 2.5}
+test textMark-6.3 {TkTextMarkNameToIndex, with mark outside -startline/-endline range - bug 1630271} -body {
+  .t mark set mymark 1.0
+  .t configure -startline 2
+  list [catch {.t index mymark} msg] $msg
+} -cleanup {
+  .t configure -startline {} -endline {}
+  .t mark unset mymark
+} -result {1 {bad text index "mymark"}}
+test textMark-6.4 {TkTextMarkNameToIndex, with mark outside -startline/-endline range - bug 1630271} -body {
+  .t mark set mymark 1.0
+  .t configure -startline 2
+  set res [list [catch {.t index mymark} msg] $msg]
+  lappend res [.pt index mymark]
+  .t configure -startline {}
+  .pt configure -startline 4
+  lappend res [.t index mymark]
+  lappend res [catch {.pt index mymark} msg] $msg
+  lappend res [.t get mymark]
+  lappend res [catch {.pt get mymark} msg] $msg
+} -cleanup {
+  .t configure -startline {} -endline {}
+  .pt configure -startline {} -endline {}
+  .t mark unset mymark
+} -result {1 {bad text index "mymark"} 1.0 1.0 1 {bad text index "mymark"} L 1 {bad text index "mymark"}}
 
 catch {eval {.t mark unset} [.t mark names]}
 test textMark-7.1 {MarkFindNext - invalid mark name} haveCourier12 {
@@ -180,8 +214,8 @@ test textMark-7.9 {MarkFindNext - mark set in a text widget and retrieved from a
     .t mark unset {*}[.t mark names]
 } -body {
     .t mark set mymark 1.0
-    set res [list [.pt mark next 1.0] [.pt mark next mymark] [.pt mark next insert]]
-} -result {mymark insert current}
+    lsort [list [.pt mark next 1.0] [.pt mark next mymark] [.pt mark next insert]]
+} -result {current insert mymark}
 
 test textMark-8.1 {MarkFindPrev - invalid mark name} -constraints haveCourier12 -setup {
     .t mark unset {*}[.t mark names]
@@ -242,7 +276,7 @@ test textMark-8.9 {MarkFindPrev - mark set in a text widget and retrieved from a
     .t mark unset {*}[.t mark names]
 } -body {
     .t mark set mymark 1.0
-    set res [list [.pt mark prev end] [.pt mark prev current] [.pt mark prev insert]]
+    lsort [list [.pt mark prev end] [.pt mark prev current] [.pt mark prev insert]]
 } -result {current insert mymark}
 
 catch {destroy .t}