rtla/tests: Add grep checks for base test cases

Checking for patterns in rtla output with grep was added to test rtla
actions. Add grep checks also for base tests where applicable.

Also fix trace event histogram trigger check to use the correct syntax
for the command-line option so that the test passes with the grep check.

Cc: John Kacur <[email protected]>
Cc: Luis Goncalves <[email protected]>
Cc: Chang Yin <[email protected]>
Cc: Costa Shulyupin <[email protected]>
Link: https://lore.kernel.org/[email protected]
Signed-off-by: Tomas Glozar <[email protected]>
Signed-off-by: Steven Rostedt (Google) <[email protected]>

Author: lenticularis39

tools/tracing/rtla/tests/hwnoise.t

@@ -6,16 +6,17 @@ test_begin
 set_timeout 2m
 
 check "verify help page" \
-	"hwnoise --help"
+	"hwnoise --help" 0 "summary of hardware-related noise"
 check "detect noise higher than one microsecond" \
-	"hwnoise -c 0 -T 1 -d 5s -q"
+	"hwnoise -c 0 -T 1 -d 5s -q" 0
 check "set the automatic trace mode" \
-	"hwnoise -a 5 -d 10s" 2
+	"hwnoise -a 5 -d 10s" 2 "osnoise hit stop tracing"
 check "set scheduling param to the osnoise tracer threads" \
 	"hwnoise -P F:1 -c 0 -r 900000 -d 10s -q"
 check "stop the trace if a single sample is higher than 1 us" \
-	"hwnoise -s 1 -T 1 -t -d 10s" 2
+	"hwnoise -s 1 -T 1 -t -d 10s" 2 "Saving trace to osnoise_trace.txt"
 check "enable a trace event trigger" \
-	"hwnoise -t -e osnoise:irq_noise trigger=\"hist:key=desc,duration:sort=desc,duration:vals=hitcount\" -d 10s"
+	"hwnoise -t -e osnoise:irq_noise --trigger=\"hist:key=desc,duration:sort=desc,duration:vals=hitcount\" -d 10s" \
+	0 "Saving event osnoise:irq_noise hist to osnoise_irq_noise_hist.txt"
 
 test_end

tools/tracing/rtla/tests/osnoise.t

@@ -6,13 +6,13 @@ test_begin
 set_timeout 2m
 
 check "verify help page" \
-	"osnoise --help"
+	"osnoise --help" 0 "osnoise version"
 check "verify the --priority/-P param" \
 	"osnoise top -P F:1 -c 0 -r 900000 -d 10s -q"
 check "verify the --stop/-s param" \
-	"osnoise top -s 30 -T 1 -t" 2
+	"osnoise top -s 30 -T 1" 2 "osnoise hit stop tracing"
 check "verify the  --trace param" \
-	"osnoise hist -s 30 -T 1 -t" 2
+	"osnoise hist -s 30 -T 1 -t" 2 "Saving trace to osnoise_trace.txt"
 check "verify the --entries/-E param" \
 	"osnoise hist -P F:1 -c 0 -r 900000 -d 10s -b 10 -E 25"
 

tools/tracing/rtla/tests/timerlat.t

@@ -21,23 +21,25 @@ export RTLA_NO_BPF=$option
 
 # Basic tests
 check "verify help page" \
-	"timerlat --help"
+	"timerlat --help" 0 "timerlat version"
 check "verify -s/--stack" \
-	"timerlat top -s 3 -T 10 -t" 2
+	"timerlat top -s 3 -T 10 -t" 2 "Blocking thread stack trace"
 check "verify -P/--priority" \
 	"timerlat top -P F:1 -c 0 -d 10s -q"
 check "test in nanoseconds" \
-	"timerlat top -i 2 -c 0 -n -d 10s" 2
+	"timerlat top -i 2 -c 0 -n -d 10s" 2 "ns"
 check "set the automatic trace mode" \
-	"timerlat top -a 5 --dump-tasks" 2
+	"timerlat top -a 5" 2 "analyzing it"
+check "dump tasks" \
+	"timerlat top -a 5 --dump-tasks" 2 "Printing CPU tasks"
 check "print the auto-analysis if hits the stop tracing condition" \
 	"timerlat top --aa-only 5" 2
 check "disable auto-analysis" \
 	"timerlat top -s 3 -T 10 -t --no-aa" 2
 check "verify -c/--cpus" \
 	"timerlat hist -c 0 -d 10s"
 check "hist test in nanoseconds" \
-	"timerlat hist -i 2 -c 0 -n -d 10s" 2
+	"timerlat hist -i 2 -c 0 -n -d 10s" 2 "ns"
 
 # Actions tests
 check "trace output through -t" \