Checks that
- exit handlers are run only once, even when registered multiple
times.
- run in reverse order
- actually run for all ways a test could exit.
This is prep work to extend exit handlers to also work in a subtest
aware way.
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
---
lib/tests/.gitignore | 1 +
lib/tests/Makefile.sources | 1 +
lib/tests/igt_exit_handler.c | 128 +++++++++++++++++++++++++++++++++++++++++++
3 files changed, 130 insertions(+)
create mode 100644 lib/tests/igt_exit_handler.c
diff --git a/lib/tests/.gitignore b/lib/tests/.gitignore
index a4f10805a304..661386a38dc8 100644
--- a/lib/tests/.gitignore
+++ b/lib/tests/.gitignore
@@ -1,6 +1,7 @@
# Please keep sorted alphabetically
igt_assert
igt_fork_helper
+igt_exit_handler
igt_invalid_subtest_name
igt_list_only
igt_no_exit
diff --git a/lib/tests/Makefile.sources b/lib/tests/Makefile.sources
index 777b9c19b9f3..09baeb127d22 100644
--- a/lib/tests/Makefile.sources
+++ b/lib/tests/Makefile.sources
@@ -11,6 +11,7 @@ check_PROGRAMS = \
igt_invalid_subtest_name \
igt_segfault \
igt_assert \
+ igt_exit_handler \
$(NULL)
check_SCRIPTS = \
diff --git a/lib/tests/igt_exit_handler.c b/lib/tests/igt_exit_handler.c
new file mode 100644
index 000000000000..d1b5a8891739
--- /dev/null
+++ b/lib/tests/igt_exit_handler.c
@@ -0,0 +1,128 @@
+/*
+ * Copyright © 2016 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#define _GNU_SOURCE
+#include <assert.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include "igt_core.h"
+
+int test;
+int pipes[2];
+
+static void exit_handler1(int sig)
+{
+ assert(test == 1);
+ test++;
+}
+
+static void exit_handler2(int sig)
+{
+ char tmp = 1;
+
+ /* ensure exit handlers are called in reverse */
+ assert(test == 0);
+ test++;
+
+ /* we need to get a side effect to the parent to make sure exit handlers
+ * actually run. */
+ assert(write(pipes[1], &tmp, 1) == 1);
+}
+
+enum test_type {
+ SUC,
+ NORMAL,
+ FAIL,
+ SKIP,
+ SIG
+};
+
+static int testfunc(enum test_type test_type)
+{
+ char prog[] = "igt_no_exit";
+ char *fake_argv[] = {prog};
+ int fake_argc = 1;
+ pid_t pid;
+ int status;
+ char tmp = 0;
+
+ assert(pipe2(pipes, O_NONBLOCK) == 0);
+
+ pid = fork();
+
+ if (pid == 0) {
+ igt_subtest_init(fake_argc, fake_argv);
+
+ igt_fixture {
+ /* register twice, should only be called once */
+ igt_install_exit_handler(exit_handler1);
+ igt_install_exit_handler(exit_handler1);
+
+ igt_install_exit_handler(exit_handler2);
+ }
+
+ igt_subtest("subtest") {
+ switch (test_type) {
+ case SUC:
+ igt_success();
+ case FAIL:
+ igt_fail(1);
+ case SKIP:
+ igt_skip("skip");
+ case NORMAL:
+ break;
+ case SIG:
+ raise(SIGTERM);
+ }
+ }
+
+ igt_exit();
+ }
+
+ assert(waitpid(pid, &status, 0) != -1);
+
+ assert(read(pipes[0], &tmp, 1) == 1);
+ assert(tmp == 1);
+
+ return status;
+}
+
+int main(int argc, char **argv)
+{
+ int status;
+
+ assert(testfunc(SUC) == 0);
+
+ assert(testfunc(NORMAL) == 0);
+
+ status = testfunc(FAIL);
+ assert(WIFEXITED(status) && WEXITSTATUS(status) == 1);
+
+ status = testfunc(SKIP);
+ assert(WIFEXITED(status) && WEXITSTATUS(status) == IGT_EXIT_SKIP);
+
+ status = testfunc(SIG);
+ assert(WIFSIGNALED(status) && WTERMSIG(status) == SIGTERM);
+}
--
2.7.0
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