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authorTom de Vries <tdevries@suse.de>2024-06-03 07:49:24 +0200
committerTom de Vries <tdevries@suse.de>2024-06-03 07:49:24 +0200
commit628b136d6474df9c4bbf04b8ff1977ef7191c9e1 (patch)
tree539b5ecfb608e787b6760317258515488f91d151 /gdb
parentad280e8ef759837dc2ba2b2bd95712290041d5d6 (diff)
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[gdb/testsuite] Fix timeout in gdb.tui/resize-2.exp
When running test-case gdb.tui/resize-2.exp with taskset -c 0, I sometimes run into: ... tui disable^[[40;1H^M(gdb) PASS: $exp: tui disable ^M^[[K(gdb) FAIL: $exp: two prompt redisplays after resize (timeout) ... The test-case does "Term::resize 24 80 0" while having the settings of an earlier "Term::resize 40 90", so both dimensions change. When TUI is enabled, we call Term::resize with wait_for_msg == 1, and the proc: - calls stty to change one dimension, - waits for the message (enabled by "maint set tui-resize-message on") confirming the resize has happened, - calls stty to change the other dimension, and again - waits for the message confirming the resize has happened. Since TUI is disabled, we call Term::resize with wait_for_msg == 0 because the message is not printed, so stty is called twice, and afterwards we check for the results of the two resizes, which is the test that is failing. The problem is that not waiting for a response after each stty call opens up the possibility of the responses being merged. Fix this by calling Term::resize twice, changing one dimension at a time, and waiting for a single prompt redisplay after each one. Tested on x86_64-linux. Reviewed-By: Alexandra Petlanova Hajkova <ahajkova@redhat.com> PR testsuite/31822 Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=31822
Diffstat (limited to 'gdb')
-rw-r--r--gdb/testsuite/gdb.tui/resize-2.exp18
1 files changed, 15 insertions, 3 deletions
diff --git a/gdb/testsuite/gdb.tui/resize-2.exp b/gdb/testsuite/gdb.tui/resize-2.exp
index 0f1f0b9..729e1ee 100644
--- a/gdb/testsuite/gdb.tui/resize-2.exp
+++ b/gdb/testsuite/gdb.tui/resize-2.exp
@@ -59,11 +59,23 @@ gdb_test_multiple "tui disable" "" {
}
}
-# Resize with TUI disabled, so don't wait for the resize message.
+# Resize with TUI disabled, so don't wait for the resize message. Instead,
+# do it in two steps, and wait for a prompt redisplay for each. If we do
+# this in one step, it's unpredictable how may prompt redisplays we'll get.
+Term::resize 24 90 0
+set screen_dim { 0 0 90 24 }
+
+gdb_test_multiple "" "prompt redisplays after first resize" {
+ -re "\r.*$gdb_prompt $" {
+ pass $gdb_test_name
+ }
+}
+
Term::resize 24 80 0
set screen_dim { 0 0 80 24 }
-gdb_test_multiple "" "two prompt redisplays after resize" {
- -re "\r.*$gdb_prompt \r.*$gdb_prompt $" {
+
+gdb_test_multiple "" "prompt redisplays after second resize" {
+ -re "\r.*$gdb_prompt $" {
pass $gdb_test_name
}
}