net: tests: Test Trickle algorithm

This is only meant for the new IP stack.

Change-Id: I643b0556f87423f09555274749db93397ef66c59
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>

tests/net/trickle/Makefile

@@ -0,0 +1,6 @@
+BOARD ?= qemu_x86
+MDEF_FILE = prj.mdef
+KERNEL_TYPE ?= nano
+CONF_FILE = prj.conf
+
+include $(ZEPHYR_BASE)/Makefile.inc

tests/net/trickle/prj.conf

@@ -0,0 +1,18 @@
+CONFIG_NETWORKING=y
+CONFIG_NET_YAIP=y
+CONFIG_NET_IPV6=y
+CONFIG_NET_UDP=y
+CONFIG_NET_TCP=n
+CONFIG_NET_IPV4=y
+CONFIG_NET_MAX_CONTEXTS=1
+CONFIG_NET_L2_DUMMY=y
+CONFIG_NET_LOG=y
+CONFIG_SYS_LOG_SHOW_COLOR=y
+CONFIG_TEST_RANDOM_GENERATOR=y
+CONFIG_NET_IPV6_ND=n
+CONFIG_NET_IPV6_DAD=n
+CONFIG_NET_NBUF_TX_COUNT=1
+CONFIG_NET_NBUF_RX_COUNT=1
+CONFIG_NET_NBUF_DATA_COUNT=2
+CONFIG_NET_TRICKLE=y
+#CONFIG_NETWORK_IP_STACK_DEBUG_TRICKLE=y

tests/net/trickle/prj.mdef

@@ -0,0 +1,5 @@
+% Application       : Unit test
+
+% TASK NAME         PRIO ENTRY           STACK GROUPS
+% ===================================================
+  TASK MAIN            7 main            2048 [EXE]

tests/net/trickle/src/Makefile

@@ -0,0 +1,3 @@
+obj-y = main.o
+ccflags-y += -I${ZEPHYR_BASE}/tests/include
+ccflags-y += -I${ZEPHYR_BASE}/net/yaip

tests/net/trickle/src/main.c

@@ -0,0 +1,306 @@
+/* main.c - Application main entry point */
+
+/*
+ * Copyright (c) 2015 Intel Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <string.h>
+#include <errno.h>
+#include <misc/printk.h>
+#include <sections.h>
+
+#include <tc_util.h>
+
+#include <net/ethernet.h>
+#include <net/buf.h>
+#include <net/net_ip.h>
+#include <net/net_if.h>
+
+#include <net/trickle.h>
+
+#include "net_private.h"
+
+#if defined(CONFIG_NETWORK_IP_STACK_DEBUG_CONTEXT)
+#define DBG(fmt, ...) printk(fmt, ##__VA_ARGS__)
+#else
+#define DBG(fmt, ...)
+#endif
+
+static int token1 = 1, token2 = 2;
+
+static struct nano_sem wait;
+static bool cb_called;
+static bool test_failed;
+
+#define WAIT_TIME (sys_clock_ticks_per_sec)
+
+/* Set CHECK_LONG_TIMEOUT to 1 if you want to check longer timeout.
+ * Do not do this for automated tests as those need to finish asap.
+ */
+#define CHECK_LONG_TIMEOUT 0
+#if CHECK_LONG_TIMEOUT > 0
+#define WAIT_TIME_LONG (sys_clock_ticks_per_sec * 10)
+#endif
+
+#define T1_IMIN 3
+#define T1_IMAX 10
+#define T1_K 2
+
+#define T2_IMIN 4
+#define T2_IMAX 11
+#define T2_K 2
+
+static struct net_trickle t1;
+static struct net_trickle t2;
+
+static void cb(struct net_trickle *trickle, bool do_suppress, void *user_data)
+{
+	TC_PRINT("Trickle %p callback called\n", trickle);
+
+	nano_sem_give(&wait);
+
+	cb_called = true;
+}
+
+static bool test_trickle_create(void)
+{
+	int ret;
+
+	ret = net_trickle_create(&t1, T1_IMIN, T1_IMAX, T1_K);
+	if (ret) {
+		TC_ERROR("Trickle 1 create failed\n");
+		return false;
+	}
+
+	ret = net_trickle_create(&t2, T2_IMIN, T2_IMAX, T2_K);
+	if (ret) {
+		TC_ERROR("Trickle 2 create failed\n");
+		return false;
+	}
+
+	return true;
+}
+
+static bool test_trickle_start(void)
+{
+	int ret;
+
+	ret = net_trickle_start(&t1, cb, &t1);
+	if (ret) {
+		TC_ERROR("Trickle 1 start failed\n");
+		return false;
+	}
+
+	ret = net_trickle_start(&t2, cb, &t2);
+	if (ret) {
+		TC_ERROR("Trickle 2 start failed\n");
+		return false;
+	}
+
+	return true;
+}
+
+static bool test_trickle_stop(void)
+{
+	int ret;
+
+	ret = net_trickle_stop(&t1);
+	if (ret) {
+		TC_ERROR("Trickle 1 stop failed\n");
+		return false;
+	}
+
+	ret = net_trickle_stop(&t2);
+	if (ret) {
+		TC_ERROR("Trickle 2 stop failed\n");
+		return false;
+	}
+
+	return true;
+}
+
+static bool test_trickle_1_status(void)
+{
+	if (!net_trickle_is_running(&t1)) {
+		TC_ERROR("Trickle 1 not running\n");
+		return false;
+	}
+
+	if (token1 != token2) {
+		net_trickle_inconsistency(&t1);
+	} else {
+		net_trickle_consistency(&t1);
+	}
+
+	return true;
+}
+
+static bool test_trickle_2_status(void)
+{
+	if (!net_trickle_is_running(&t2)) {
+		TC_ERROR("Trickle 2 not running\n");
+		return false;
+	}
+
+	if (token1 == token2) {
+		net_trickle_consistency(&t2);
+	} else {
+		net_trickle_inconsistency(&t2);
+	}
+
+	return true;
+}
+
+static bool test_trickle_1_wait(void)
+{
+	cb_called = false;
+	nano_sem_take(&wait, WAIT_TIME);
+
+	if (!cb_called) {
+		TC_ERROR("Trickle 1 no timeout\n");
+		return false;
+	}
+
+	if (!net_trickle_is_running(&t1)) {
+		TC_ERROR("Trickle 1 not running\n");
+		return false;
+	}
+
+	return true;
+}
+
+#if CHECK_LONG_TIMEOUT > 0
+static bool test_trickle_1_wait_long(void)
+{
+	cb_called = false;
+	nano_sem_take(&wait, WAIT_TIME_LONG);
+
+	if (!cb_called) {
+		TC_ERROR("Trickle 1 no timeout\n");
+		return false;
+	}
+
+	if (!net_trickle_is_running(&t1)) {
+		TC_ERROR("Trickle 1 not running\n");
+		return false;
+	}
+
+	return true;
+}
+#endif
+
+static bool test_trickle_2_wait(void)
+{
+	cb_called = false;
+	nano_sem_take(&wait, WAIT_TIME);
+
+	if (!cb_called) {
+		TC_ERROR("Trickle 2 no timeout\n");
+		return false;
+	}
+
+	if (!net_trickle_is_running(&t2)) {
+		TC_ERROR("Trickle 2 not running\n");
+		return false;
+	}
+
+	return true;
+}
+
+static bool test_trickle_1_stopped(void)
+{
+	if (net_trickle_is_running(&t1)) {
+		TC_ERROR("Trickle 1 running\n");
+		return false;
+	}
+
+	return true;
+}
+
+static bool test_trickle_2_inc(void)
+{
+	if (!net_trickle_is_running(&t2)) {
+		TC_ERROR("Trickle 2 is not running\n");
+		return false;
+	}
+
+	token2++;
+
+	return true;
+}
+
+static bool test_trickle_1_update(void)
+{
+	if (!net_trickle_is_running(&t1)) {
+		TC_ERROR("Trickle 1 is not running\n");
+		return false;
+	}
+
+	token1 = token2;
+
+	return true;
+}
+
+static bool test_init(void)
+{
+	nano_sem_init(&wait);
+
+	return true;
+}
+
+static const struct {
+	const char *name;
+	bool (*func)(void);
+} tests[] = {
+	{ "trickle test init", test_init },
+	{ "trickle create", test_trickle_create },
+	{ "trickle start", test_trickle_start },
+	{ "trickle 1 check status", test_trickle_1_status },
+	{ "trickle 2 check status", test_trickle_2_status },
+	{ "trickle 1 wait timeout", test_trickle_1_wait },
+	{ "trickle 2 wait timeout", test_trickle_2_wait },
+	{ "trickle 1 update", test_trickle_1_update },
+	{ "trickle 1 check status", test_trickle_1_status },
+	{ "trickle 2 update", test_trickle_2_inc },
+	{ "trickle 2 check status", test_trickle_2_status },
+	{ "trickle 1 check status", test_trickle_1_status },
+
+#if CHECK_LONG_TIMEOUT > 0
+	{ "trickle 1 wait long timeout", test_trickle_1_wait_long },
+#endif
+	{ "trickle stop", test_trickle_stop },
+	{ "trickle 1 check stopped", test_trickle_1_stopped },
+};
+
+void main(void)
+{
+	int count, pass;
+
+	for (count = 0, pass = 0; count < ARRAY_SIZE(tests); count++) {
+		TC_START(tests[count].name);
+		test_failed = false;
+		if (!tests[count].func() || test_failed) {
+			TC_END(FAIL, "failed\n");
+		} else {
+			TC_END(PASS, "passed\n");
+			pass++;
+		}
+	}
+
+	TC_END_REPORT(((pass != ARRAY_SIZE(tests)) ? TC_FAIL : TC_PASS));
+}

tests/net/trickle/testcase.ini

@@ -0,0 +1,6 @@
+[test]
+tags = net-trickle
+build_only = true
+arch_whitelist = x86
+# Doesn't work for ia32_pci
+filter = CONFIG_SOC : "ia32"