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-rw-r--r--tests/text.test4
1 files changed, 4 insertions, 0 deletions
diff --git a/tests/text.test b/tests/text.test
index 746e998..7ade29a 100644
--- a/tests/text.test
+++ b/tests/text.test
@@ -2683,6 +2683,10 @@ test text-9.2.47 {TextWidgetCmd procedure, "count" option} -setup {
.t tag configure hidden -elide true
.t tag add hidden 5.7 11.0
update
+ # next line to be fully sure that asynchronous line heights calculation is
+ # up-to-date otherwise this test may fail (depending on the computer
+ # performance), especially when the . toplevel has small height
+ .t count -update -ypixels 1.0 end
set y1 [lindex [.t yview] 1]
.t count -displaylines 5.0 11.0
set y2 [lindex [.t yview] 1]