[PATCH v2 06/21] libtracefs: Add unit test to test tracefs_sql() where clause

From: Steven Rostedt
Date: Tue Aug 03 2021 - 00:25:02 EST


From: "Steven Rostedt (VMware)" <rostedt@xxxxxxxxxxx>

Add a test to test filtering of events via the WHERE clause.

Signed-off-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>
---
utest/tracefs-utest.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)

diff --git a/utest/tracefs-utest.c b/utest/tracefs-utest.c
index f4e1a6b90a46..645c84c31f0e 100644
--- a/utest/tracefs-utest.c
+++ b/utest/tracefs-utest.c
@@ -53,6 +53,13 @@
#define SQL_3_EVENT "wakeup_lat"
#define SQL_3_SQL "select start.pid, end.next_prio as prio, (end.TIMESTAMP_USECS - start.TIMESTAMP_USECS) as lat from sched_waking as start join sched_switch as end on start.pid = end.next_pid"

+#define SQL_4_EVENT "wakeup_lat_2"
+#define SQL_4_SQL "select start.pid, end.next_prio as prio, (end.TIMESTAMP_USECS - start.TIMESTAMP_USECS) as lat from sched_waking as start join sched_switch as end on start.pid = end.next_pid where (start.prio >= 1 && start.prio < 100) || !(start.pid >= 0 && start.pid <= 1) && end.prev_pid != 0"
+
+#define SQL_5_EVENT "irq_lat"
+#define SQL_5_SQL "select end.common_pid as pid, (end.common_timestamp.usecs - start.common_timestamp.usecs) as irq_lat from irq_disable as start join irq_enable as end on start.common_pid = end.common_pid, start.parent_offs == end.parent_offs where start.common_pid != 0"
+#define SQL_5_START "irq_disable"
+
static struct tracefs_instance *test_instance;
static struct tep_handle *test_tep;
struct test_sample {
@@ -336,6 +343,7 @@ static void test_instance_trace_sql(struct tracefs_instance *instance)
struct tracefs_synth *synth;
struct trace_seq seq;
struct tep_handle *tep;
+ struct tep_event *event;
int ret;

tep = tracefs_local_events(NULL);
@@ -364,6 +372,23 @@ static void test_instance_trace_sql(struct tracefs_instance *instance)
tracefs_synth_free(synth);
trace_seq_reset(&seq);

+ synth = tracefs_sql(tep, SQL_4_EVENT, SQL_4_SQL, NULL);
+ CU_TEST(synth != NULL);
+ ret = tracefs_synth_show(&seq, instance, synth);
+ CU_TEST(ret == 0);
+ tracefs_synth_free(synth);
+ trace_seq_reset(&seq);
+
+ event = tep_find_event_by_name(tep, NULL, SQL_5_START);
+ if (event) {
+ synth = tracefs_sql(tep, SQL_5_EVENT, SQL_5_SQL, NULL);
+ CU_TEST(synth != NULL);
+ ret = tracefs_synth_show(&seq, instance, synth);
+ CU_TEST(ret == 0);
+ tracefs_synth_free(synth);
+ trace_seq_reset(&seq);
+ }
+
tep_free(tep);
trace_seq_destroy(&seq);
}
--
2.30.2