perf tests: Add is_printable_array test

Add automated test for is_printable_array function.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Pirko <jiri@mellanox.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1468685480-18951-4-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build
index 4158422..cb20ae1 100644 (file)
--- a/tools/perf/tests/Build
+++ b/tools/perf/tests/Build
@@ -40,6 +40,7 @@ perf-y += event_update.o
 perf-y += event-times.o
 perf-y += backward-ring-buffer.o
 perf-y += sdt.o
+perf-y += is_printable_array.o
 
 $(OUTPUT)tests/llvm-src-base.c: tests/bpf-script-example.c tests/Build
        $(call rule_mkdir)

diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 4dd2d05..10eb306 100644 (file)
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -221,6 +221,10 @@ static struct test generic_tests[] = {
                .desc = "Test SDT event probing",
                .func = test__sdt_event,
        },
+       {
+               .desc = "Test is_printable_array function",
+               .func = test__is_printable_array,
+       },
        {
                .func = NULL,
        },

diff --git a/tools/perf/tests/is_printable_array.c b/tools/perf/tests/is_printable_array.c
new file mode 100644 (file)
index 0000000..42e1339
--- /dev/null
+++ b/tools/perf/tests/is_printable_array.c
@@ -0,0 +1,36 @@
+#include <linux/compiler.h>
+#include "tests.h"
+#include "debug.h"
+#include "util.h"
+
+int test__is_printable_array(int subtest __maybe_unused)
+{
+       char buf1[] = { 'k', 'r', 4, 'v', 'a', 0 };
+       char buf2[] = { 'k', 'r', 'a', 'v', 4, 0 };
+       struct {
+               char            *buf;
+               unsigned int     len;
+               int              ret;
+       } t[] = {
+               { (char *) "krava",     sizeof("krava"),        1 },
+               { (char *) "krava",     sizeof("krava") - 1,    0 },
+               { (char *) "",          sizeof(""),             1 },
+               { (char *) "",          0,                      0 },
+               { NULL,                 0,                      0 },
+               { buf1,                 sizeof(buf1),           0 },
+               { buf2,                 sizeof(buf2),           0 },
+       };
+       unsigned int i;
+
+       for (i = 0; i < ARRAY_SIZE(t); i++) {
+               int ret;
+
+               ret = is_printable_array((char *) t[i].buf, t[i].len);
+               if (ret != t[i].ret) {
+                       pr_err("failed: test %u\n", i);
+                       return TEST_FAIL;
+               }
+       }
+
+       return TEST_OK;
+}

diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h
index a0288f8..9bfc0e0 100644 (file)
--- a/tools/perf/tests/tests.h
+++ b/tools/perf/tests/tests.h
@@ -89,6 +89,7 @@ int test__event_times(int subtest);
 int test__backward_ring_buffer(int subtest);
 int test__cpu_map_print(int subtest);
 int test__sdt_event(int subtest);
+int test__is_printable_array(int subtest);
 
 #if defined(__arm__) || defined(__aarch64__)
 #ifdef HAVE_DWARF_UNWIND_SUPPORT