rtla/tests: Add runtime tests for restoring continue flag

In case an action preceding the continue action fails, not only
the continue flag should not be set, it should be unset if it was set
from a previous run of actions_perform().

Add a runtime test to both osnoise and timerlat tools that checks that
this works properly by creating a temporary file.

Link: https://lore.kernel.org/r/20260526102523.2662391-4-tglozar@redhat.com
Signed-off-by: Tomas Glozar <tglozar@redhat.com>

Author: lenticularis39

tools/tracing/rtla/tests/osnoise.t

@@ -65,6 +65,8 @@ check "top stop at failed action" \
 	"osnoise top -S 2 --on-threshold shell,command='echo -n abc; false' --on-threshold shell,command='echo -n defgh'" 2 "^abc" "defgh"
 check_top_q_hist "with continue" \
 	"osnoise TOOL -S 2 -d 5s --on-threshold shell,command='echo TestOutput' --on-threshold continue" 0 "^TestOutput$"
+check_top_q_hist "with conditional continue" \
+	"osnoise TOOL -S 2 --on-threshold shell,command='if [ -f a ]; then echo 2; exit 1; else echo -n 1; touch a; fi' --on-threshold continue" 2 "^12$" "^2$"
 check_top_hist "with trace output at end" \
 	"osnoise TOOL -d 1s --on-end trace" 0 "^  Saving trace to osnoise_trace.txt$"
 

tools/tracing/rtla/tests/timerlat.t

@@ -94,6 +94,8 @@ check "top stop at failed action" \
 	"timerlat top -T 2 --on-threshold shell,command='echo -n abc; false' --on-threshold shell,command='echo -n defgh'" 2 "^abc" "defgh"
 check_top_q_hist "with continue" \
 	"timerlat TOOL -T 2 -d 5s --on-threshold shell,command='echo TestOutput' --on-threshold continue" 0 "^TestOutput$"
+check_top_q_hist "with conditional continue" \
+	"timerlat TOOL -T 2 --on-threshold shell,command='if [ -f a ]; then echo 2; exit 1; else echo -n 1; touch a; fi' --on-threshold continue" 2 "^12$" "^2$"
 check_top_hist "with trace output at end" \
 	"timerlat TOOL -d 1s --on-end trace" 0 "^  Saving trace to timerlat_trace.txt$"