Squashed 'external/toxcore/c-toxcore/' content from commit 67badf69

git-subtree-dir: external/toxcore/c-toxcore
git-subtree-split: 67badf69416a74e74f6d7eb51dd96f37282b8455

auto_tests/lossless_packet_test.c

@@ -0,0 +1,67 @@
+/* Tests that we can send lossless packets.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include "../testing/misc_tools.h"
+#include "../toxcore/util.h"
+#include "check_compat.h"
+
+typedef struct State {
+    bool custom_packet_received;
+} State;
+
+#include "auto_test_support.h"
+
+#define LOSSLESS_PACKET_FILLER 160
+
+static void handle_lossless_packet(Tox *tox, uint32_t friend_number, const uint8_t *data, size_t length, void *user_data)
+{
+    uint8_t *cmp_packet = (uint8_t *)malloc(tox_max_custom_packet_size());
+    ck_assert(cmp_packet != nullptr);
+    memset(cmp_packet, LOSSLESS_PACKET_FILLER, tox_max_custom_packet_size());
+
+    if (length == tox_max_custom_packet_size() && memcmp(data, cmp_packet, tox_max_custom_packet_size()) == 0) {
+        const AutoTox *autotox = (AutoTox *)user_data;
+        State *state = (State *)autotox->state;
+        state->custom_packet_received = true;
+    }
+
+    free(cmp_packet);
+}
+
+static void test_lossless_packet(AutoTox *autotoxes)
+{
+    tox_callback_friend_lossless_packet(autotoxes[1].tox, &handle_lossless_packet);
+    const size_t packet_size = tox_max_custom_packet_size() + 1;
+    uint8_t *packet = (uint8_t *)malloc(packet_size);
+    ck_assert(packet != nullptr);
+    memset(packet, LOSSLESS_PACKET_FILLER, packet_size);
+
+    bool ret = tox_friend_send_lossless_packet(autotoxes[0].tox, 0, packet, packet_size, nullptr);
+    ck_assert_msg(ret == false, "should not be able to send custom packets this big %i", ret);
+
+    ret = tox_friend_send_lossless_packet(autotoxes[0].tox, 0, packet, tox_max_custom_packet_size(), nullptr);
+    ck_assert_msg(ret == true, "tox_friend_send_lossless_packet fail %i", ret);
+
+    free(packet);
+
+    do {
+        iterate_all_wait(autotoxes, 2, ITERATION_INTERVAL);
+    } while (!((State *)autotoxes[1].state)->custom_packet_received);
+}
+
+int main(void)
+{
+    setvbuf(stdout, nullptr, _IONBF, 0);
+
+    Run_Auto_Options options = default_run_auto_options();
+    options.graph = GRAPH_LINEAR;
+
+    run_auto_test(nullptr, 2, test_lossless_packet, sizeof(State), &options);
+
+    return 0;
+}