[PATCH wayland] tests: Test creating a shm pool with 0 size

[Jonas Ådahl]

Add a test case that tests the servers behaviour when creating a pool
of size 0. The test suite will do the memory and fd leak check for us,
so the test case is only a triggerer.

Signed-off-by: Jonas Ådahl <jadahl at gmail.com>
---
 Makefile.am      |   5 ++-
 tests/shm-test.c | 108 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 112 insertions(+), 1 deletion(-)
 create mode 100644 tests/shm-test.c

diff --git a/Makefile.am b/Makefile.am
index e850abc..5a82dd4 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -157,7 +157,8 @@ TESTS =						\
 	signal-test				\
 	resources-test				\
 	message-test				\
-	headers-test
+	headers-test				\
+	shm-test
 
 if ENABLE_CPP_TEST
 TESTS += cpp-compile-test
@@ -218,6 +219,8 @@ headers_test_SOURCES = tests/headers-test.c \
 		       tests/headers-protocol-test.c \
 		       tests/headers-protocol-core-test.c
 headers_test_LDADD = libtest-runner.la
+shm_test_SOURCES = tests/shm-test.c
+shm_test_LDADD = libtest-runner.la
 nodist_headers_test_SOURCES =			\
 	protocol/wayland-server-protocol-core.h	\
 	protocol/wayland-client-protocol-core.h
diff --git a/tests/shm-test.c b/tests/shm-test.c
new file mode 100644
index 0000000..1190808
--- /dev/null
+++ b/tests/shm-test.c
@@ -0,0 +1,108 @@
+/*
+ * Copyright © 2016 Red Hat Inc.
+ *
+ * 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.
+ */
+
+#include <assert.h>
+#include <linux/memfd.h>
+#include <stdbool.h>
+#include <string.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+
+#include "wayland-client.h"
+#include "test-runner.h"
+#include "test-compositor.h"
+
+static void
+registry_handle_global(void *data, struct wl_registry *registry,
+		       uint32_t id, const char *interface, uint32_t version)
+{
+	bool *tested = data;
+	struct wl_shm *shm;
+	int fd, ret;
+	struct wl_shm_pool *pool;
+
+	if (strcmp (interface, "wl_shm"))
+		return;
+
+	shm = wl_registry_bind(registry, id, &wl_shm_interface, 1);
+	assert(shm);
+
+	fd = syscall(__NR_memfd_create, "wayland-tests", MFD_CLOEXEC);
+	assert(fd >= 0);
+
+	ret = ftruncate(fd, 1);
+	assert(ret >= 0);
+
+	pool = wl_shm_create_pool (shm, fd, 0);
+	wl_shm_pool_destroy(pool);
+	wl_shm_destroy(shm);
+	close(fd);
+
+	*tested = true;
+}
+
+static const struct wl_registry_listener registry_listener = {
+	registry_handle_global,
+	NULL
+};
+
+static void
+client_test_shm_zero_size(void)
+{
+	struct wl_display *display;
+	struct wl_registry *registry;
+	bool tested = false;
+
+	display = wl_display_connect(NULL);
+	assert(display);
+
+	registry = wl_display_get_registry(display);
+	assert(registry != NULL);
+
+	wl_registry_add_listener(registry, &registry_listener, &tested);
+
+	assert(wl_display_roundtrip(display) != -1);
+	assert(tested);
+
+	wl_registry_destroy(registry);
+
+	/* Make sure the server processes the shm requests before destroying the
+	 * client. */
+	wl_display_roundtrip(display);
+
+	wl_display_disconnect(display);
+}
+
+TEST(shm_zero_size)
+{
+	struct display *d = display_create();
+
+	wl_display_init_shm(d->wl_display);
+
+	client_create_noarg(d, client_test_shm_zero_size);
+
+	display_run(d);
+	display_destroy(d);
+}
-- 
2.4.3