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Wed, 29 Jan 2020 01:54:28 -0800 (PST) From: "Tzvetomir Stoyanov (VMware)" To: rostedt@goodmis.org Cc: linux-trace-devel@vger.kernel.org Subject: [PATCH 5/9] trace-cmd: Unit tests for libtracefs APIs related to tracing file / directory Date: Wed, 29 Jan 2020 11:54:17 +0200 Message-Id: <20200129095421.881786-6-tz.stoyanov@gmail.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200129095421.881786-1-tz.stoyanov@gmail.com> References: <20200129095421.881786-1-tz.stoyanov@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-trace-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-trace-devel@vger.kernel.org Added unit tests for these APIs: tracefs_find_tracing_dir() tracefs_get_tracing_dir() tracefs_get_tracing_file() tracefs_put_tracing_file() Signed-off-by: Tzvetomir Stoyanov (VMware) --- utest/tracefs-utest.c | 55 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) diff --git a/utest/tracefs-utest.c b/utest/tracefs-utest.c index d3ba213..2e6e96f 100644 --- a/utest/tracefs-utest.c +++ b/utest/tracefs-utest.c @@ -8,6 +8,7 @@ #include #include #include +#include #include #include @@ -85,6 +86,58 @@ static void test_iter_raw_events(void) CU_TEST(test_found == TEST_ARRAY_SIZE); } +#define RAND_STR_SIZE 20 +#define RAND_ASCII "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; +static const char *get_rand_str() +{ + static char str[RAND_STR_SIZE]; + static char sym[] = RAND_ASCII; + struct timespec clk; + int i; + + clock_gettime(CLOCK_REALTIME, &clk); + srand(clk.tv_nsec); + for (i = 0; i < RAND_STR_SIZE; i++) + str[i] = sym[rand() % (sizeof(sym) - 1)]; + + str[RAND_STR_SIZE - 1] = 0; + return str; +} + +static void test_trace_file(void) +{ + const char *tmp = get_rand_str(); + const char *tdir; + struct stat st; + char *file; + char *dir; + + dir = tracefs_find_tracing_dir(); + CU_TEST(dir != NULL); + CU_TEST(stat(dir, &st) == 0); + CU_TEST(S_ISDIR(st.st_mode)); + + tdir = tracefs_get_tracing_dir(); + CU_TEST(tdir != NULL); + CU_TEST(stat(tdir, &st) == 0); + CU_TEST(S_ISDIR(st.st_mode)); + + CU_TEST(strcmp(dir, tdir) == 0); + free(dir); + + file = tracefs_get_tracing_file(NULL); + CU_TEST(file == NULL); + file = tracefs_get_tracing_file(tmp); + CU_TEST(file != NULL); + CU_TEST(stat(file, &st) != 0); + tracefs_put_tracing_file(file); + + file = tracefs_get_tracing_file("trace"); + CU_TEST(file != NULL); + CU_TEST(stat(file, &st) == 0); + tracefs_put_tracing_file(file); +} + static int test_suite_destroy(void) { tracefs_instance_destroy(test_instance); @@ -120,6 +173,8 @@ void test_tracefs_lib(void) fprintf(stderr, "Suite \"%s\" cannot be ceated\n", TRACEFS_SUITE); return; } + CU_add_test(suite, "tracing file / directory APIs", + test_trace_file); CU_add_test(suite, "tracefs_iterate_raw_events API", test_iter_raw_events); } -- 2.24.1