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Subject[tip:perf/urgent] perf tests: Add test for bitmap_scnprintf function
Commit-ID:  ff3e33b075fe45c669e2cb27489d570e29d3abeb
Gitweb: http://git.kernel.org/tip/ff3e33b075fe45c669e2cb27489d570e29d3abeb
Author: Jiri Olsa <jolsa@kernel.org>
AuthorDate: Mon, 1 Aug 2016 20:02:32 +0200
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Tue, 2 Aug 2016 16:33:27 -0300

perf tests: Add test for bitmap_scnprintf function

Automatically test the bitmap_scnprintf function.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1470074555-24889-5-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/tests/Build | 1 +
tools/perf/tests/bitmap.c | 53 +++++++++++++++++++++++++++++++++++++++++
tools/perf/tests/builtin-test.c | 4 ++++
tools/perf/tests/tests.h | 1 +
4 files changed, 59 insertions(+)

diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build
index cb20ae1..dc51bc5 100644
--- a/tools/perf/tests/Build
+++ b/tools/perf/tests/Build
@@ -41,6 +41,7 @@ perf-y += event-times.o
perf-y += backward-ring-buffer.o
perf-y += sdt.o
perf-y += is_printable_array.o
+perf-y += bitmap.o

$(OUTPUT)tests/llvm-src-base.c: tests/bpf-script-example.c tests/Build
$(call rule_mkdir)
diff --git a/tools/perf/tests/bitmap.c b/tools/perf/tests/bitmap.c
new file mode 100644
index 0000000..9abe6c1
--- /dev/null
+++ b/tools/perf/tests/bitmap.c
@@ -0,0 +1,53 @@
+#include <linux/compiler.h>
+#include <linux/bitmap.h>
+#include "tests.h"
+#include "cpumap.h"
+#include "debug.h"
+
+#define NBITS 100
+
+static unsigned long *get_bitmap(const char *str, int nbits)
+{
+ struct cpu_map *map = cpu_map__new(str);
+ unsigned long *bm = NULL;
+ int i;
+
+ bm = bitmap_alloc(nbits);
+
+ if (map && bm) {
+ bitmap_zero(bm, nbits);
+
+ for (i = 0; i < map->nr; i++)
+ set_bit(map->map[i], bm);
+ }
+
+ if (map)
+ cpu_map__put(map);
+ return bm;
+}
+
+static int test_bitmap(const char *str)
+{
+ unsigned long *bm = get_bitmap(str, NBITS);
+ char buf[100];
+ int ret;
+
+ bitmap_scnprintf(bm, NBITS, buf, sizeof(buf));
+ pr_debug("bitmap: %s\n", buf);
+
+ ret = !strcmp(buf, str);
+ free(bm);
+ return ret;
+}
+
+int test__bitmap_print(int subtest __maybe_unused)
+{
+ TEST_ASSERT_VAL("failed to convert map", test_bitmap("1"));
+ TEST_ASSERT_VAL("failed to convert map", test_bitmap("1,5"));
+ TEST_ASSERT_VAL("failed to convert map", test_bitmap("1,3,5,7,9,11,13,15,17,19,21-40"));
+ TEST_ASSERT_VAL("failed to convert map", test_bitmap("2-5"));
+ TEST_ASSERT_VAL("failed to convert map", test_bitmap("1,3-6,8-10,24,35-37"));
+ TEST_ASSERT_VAL("failed to convert map", test_bitmap("1,3-6,8-10,24,35-37"));
+ TEST_ASSERT_VAL("failed to convert map", test_bitmap("1-10,12-20,22-30,32-40"));
+ return 0;
+}
diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 10eb306..778668a 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -226,6 +226,10 @@ static struct test generic_tests[] = {
.func = test__is_printable_array,
},
{
+ .desc = "Test bitmap print",
+ .func = test__bitmap_print,
+ },
+ {
.func = NULL,
},
};
diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h
index 9bfc0e0..7c196c5 100644
--- a/tools/perf/tests/tests.h
+++ b/tools/perf/tests/tests.h
@@ -90,6 +90,7 @@ 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);
+int test__bitmap_print(int subtest);

#if defined(__arm__) || defined(__aarch64__)
#ifdef HAVE_DWARF_UNWIND_SUPPORT
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