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tried to add basic socket unit tests (nonsense only for now); made LOCK_TCPIP_CORE()/UNLOCK_TCPIP_CORE() overridable for that

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This commit is contained in:
goldsimon 2017-03-16 21:52:30 +01:00
parent 2d8e17aa89
commit 8313c4d870
7 changed files with 488 additions and 4 deletions
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2
src/include/lwip/tcpip.h
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@ -50,12 +50,14 @@ extern "C" {
#endif
#if LWIP_TCPIP_CORE_LOCKING
#ifndef LOCK_TCPIP_CORE
/** The global semaphore to lock the stack. */
extern sys_mutex_t lock_tcpip_core;
/** Lock lwIP core mutex (needs @ref LWIP_TCPIP_CORE_LOCKING 1) */
#define LOCK_TCPIP_CORE() sys_mutex_lock(&lock_tcpip_core)
/** Unlock lwIP core mutex (needs @ref LWIP_TCPIP_CORE_LOCKING 1) */
#define UNLOCK_TCPIP_CORE() sys_mutex_unlock(&lock_tcpip_core)
#endif
#else /* LWIP_TCPIP_CORE_LOCKING */
#define LOCK_TCPIP_CORE()
#define UNLOCK_TCPIP_CORE()

68
test/unit/api/test_sockets.c Normal file
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@ -0,0 +1,68 @@
#include "test_sockets.h"
#include "lwip/sockets.h"
#include "lwip/stats.h"
#include "lwip/tcpip.h"
/* Setups/teardown functions */
static void
sockets_setup(void)
{
}
static void
sockets_teardown(void)
{
}
#ifndef NUM_SOCKETS
#define NUM_SOCKETS MEMP_NUM_NETCONN
#endif
/* Verify basic sockets functionality
*/
START_TEST(test_sockets_basics)
{
int s, i, ret;
int s2[NUM_SOCKETS];
LWIP_UNUSED_ARG(_i);
s = lwip_socket(AF_INET, SOCK_STREAM, 0);
fail_unless(s >= 0);
lwip_close(s);
for (i = 0; i < NUM_SOCKETS; i++) {
s2[i] = lwip_socket(AF_INET, SOCK_STREAM, 0);
fail_unless(s2[i] >= 0);
}
/* all sockets used, now it should fail */
s = lwip_socket(AF_INET, SOCK_STREAM, 0);
fail_unless(s == -1);
/* close one socket */
ret = lwip_close(s2[0]);
fail_unless(ret == 0);
/* now it should succeed */
s2[0] = lwip_socket(AF_INET, SOCK_STREAM, 0);
fail_unless(s2[0] >= 0);
/* close all sockets */
for (i = 0; i < NUM_SOCKETS; i++) {
ret = lwip_close(s2[i]);
fail_unless(ret == 0);
}
}
END_TEST
/** Create the suite including all tests for this module */
Suite *
sockets_suite(void)
{
testfunc tests[] = {
TESTFUNC(test_sockets_basics)
};
return create_suite("SOCKETS", tests, sizeof(tests)/sizeof(testfunc), sockets_setup, sockets_teardown);
}

8
test/unit/api/test_sockets.h Normal file
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@ -0,0 +1,8 @@
#ifndef LWIP_HDR_TEST_SOCKETS_H
#define LWIP_HDR_TEST_SOCKETS_H
#include "../lwip_check.h"
Suite *sockets_suite(void);
#endif

332
test/unit/arch/sys_arch.c Normal file
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@ -0,0 +1,332 @@
/*
* Copyright (c) 2017 Simon Goldschmidt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Simon Goldschmidt
*
*/
#include <lwip/opt.h>
#include <lwip/arch.h>
#include "sys_arch.h"
#include <lwip/stats.h>
#include <lwip/debug.h>
#include <lwip/sys.h>
#include <string.h>
test_sys_arch_waiting_fn the_waiting_fn;
void test_sys_arch_wait_callback(test_sys_arch_waiting_fn waiting_fn)
{
the_waiting_fn = waiting_fn;
}
u32_t sys_jiffies(void)
{
return (u32_t)0; /* todo */
}
u32_t sys_now(void)
{
return (u32_t)0; /* todo */
}
void sys_init(void)
{
}
#if !NO_SYS
err_t sys_sem_new(sys_sem_t *sem, u8_t count)
{
LWIP_ASSERT("sem != NULL", sem != NULL);
*sem = count + 1;
return ERR_OK;
}
void sys_sem_free(sys_sem_t *sem)
{
LWIP_ASSERT("sem != NULL", sem != NULL);
*sem = 0;
}
void sys_sem_set_invalid(sys_sem_t *sem)
{
LWIP_ASSERT("sem != NULL", sem != NULL);
*sem = 0;
}
/* semaphores are 1-based because RAM is initialized as 0, which would be valid */
u32_t sys_arch_sem_wait(sys_sem_t *sem, u32_t timeout)
{
u32_t ret = 0;
LWIP_ASSERT("sem != NULL", sem != NULL);
LWIP_ASSERT("*sem > 0", *sem > 0);
if (*sem == 1) {
/* need to wait */
if(!timeout)
{
/* wait infinite */
LWIP_ASSERT("cannot wait without waiting callback", the_waiting_fn != NULL);
do {
int expectSomething = the_waiting_fn(sem);
LWIP_ASSERT("*sem > 0", *sem > 0);
LWIP_ASSERT("expecting a semaphore count but it's 0", !expectSomething || (*sem > 1));
ret++;
} while(*sem == 1);
}
else
{
if (the_waiting_fn) {
int expectSomething = the_waiting_fn(sem);
LWIP_ASSERT("expecting a semaphore count but it's 0", !expectSomething || (*sem > 1));
}
LWIP_ASSERT("*sem > 0", *sem > 0);
if (*sem == 1) {
return SYS_ARCH_TIMEOUT;
}
ret = 1;
}
}
LWIP_ASSERT("*sem > 0", *sem > 0);
*sem--;
LWIP_ASSERT("*sem > 0", *sem > 0);
/* return the time we waited for the sem */
return ret;
}
void sys_sem_signal(sys_sem_t *sem)
{
LWIP_ASSERT("sem != NULL", sem != NULL);
LWIP_ASSERT("*sem > 0", *sem > 0);
*sem++;
LWIP_ASSERT("*sem > 0", *sem > 0);
}
err_t sys_mutex_new(sys_mutex_t *mutex)
{
LWIP_ASSERT("mutex != NULL", mutex != NULL);
*mutex = 1; /* 1 allocated */
return ERR_OK;
}
void sys_mutex_free(sys_mutex_t *mutex)
{
/* parameter check */
LWIP_ASSERT("mutex != NULL", mutex != NULL);
LWIP_ASSERT("*mutex >= 1", *mutex >= 1);
*mutex = 0;
}
void sys_mutex_set_invalid(sys_mutex_t *mutex)
{
LWIP_ASSERT("mutex != NULL", mutex != NULL);
*mutex = 0;
}
void sys_mutex_lock(sys_mutex_t *mutex)
{
/* nothing to do, no multithreading supported */
LWIP_ASSERT("mutex != NULL", mutex != NULL);
LWIP_ASSERT("*mutex >= 1", *mutex >= 1);
/* we count up just to check the correct pairing of lock/unlock */
*mutex++;
LWIP_ASSERT("*mutex >= 1", *mutex >= 1);
}
void sys_mutex_unlock(sys_mutex_t *mutex)
{
/* nothing to do, no multithreading supported */
LWIP_ASSERT("mutex != NULL", mutex != NULL);
LWIP_ASSERT("*mutex >= 1", *mutex >= 1);
/* we count down just to check the correct pairing of lock/unlock */
*mutex--;
LWIP_ASSERT("*mutex >= 1", *mutex >= 1);
}
sys_thread_t sys_thread_new(const char *name, lwip_thread_fn function, void *arg, int stacksize, int prio)
{
LWIP_UNUSED_ARG(name);
LWIP_UNUSED_ARG(function);
LWIP_UNUSED_ARG(arg);
LWIP_UNUSED_ARG(stacksize);
LWIP_UNUSED_ARG(prio);
/* threads not supported */
return 0;
}
err_t sys_mbox_new(sys_mbox_t *mbox, int size)
{
int mboxsize = size;
LWIP_ASSERT("mbox != NULL", mbox != NULL);
LWIP_ASSERT("size >= 0", size >= 0);
if (size == 0) {
mboxsize = 1024;
}
mbox->head = mbox->tail = 0;
mbox->sem = mbox; /* just point to something for sys_mbox_valid() */
mbox->q_mem = (void**)malloc(sizeof(void*)*mboxsize);
mbox->size = mboxsize;
mbox->used = 0;
memset(mbox->q_mem, 0, sizeof(void*)*mboxsize);
return ERR_OK;
}
void sys_mbox_free(sys_mbox_t *mbox)
{
/* parameter check */
LWIP_ASSERT("mbox != NULL", mbox != NULL);
LWIP_ASSERT("mbox->sem != NULL", mbox->sem != NULL);
LWIP_ASSERT("mbox->sem == mbox", mbox->sem == mbox);
LWIP_ASSERT("mbox->q_mem != NULL", mbox->q_mem != NULL);
mbox->sem = NULL;
free(mbox->q_mem);
mbox->q_mem = NULL;
}
void sys_mbox_set_invalid(sys_mbox_t *mbox)
{
LWIP_ASSERT("mbox != NULL", mbox != NULL);
LWIP_ASSERT("mbox->q_mem == NULL", mbox->q_mem == NULL);
mbox->sem = NULL;
mbox->q_mem = NULL;
}
void sys_mbox_post(sys_mbox_t *q, void *msg)
{
LWIP_ASSERT("q != SYS_MBOX_NULL", q != SYS_MBOX_NULL);
LWIP_ASSERT("q->sem != q", q->sem != q);
LWIP_ASSERT("q->q_mem != NULL", q->q_mem != NULL);
LWIP_ASSERT("q->used >= 0", q->used >= 0);
LWIP_ASSERT("q->size > 0", q->size > 0);
LWIP_ASSERT("mbox already full", q->used < q->size);
q->q_mem[q->head] = msg;
q->head++;
if (q->head >= (unsigned int)q->size) {
q->head = 0;
}
LWIP_ASSERT("mbox is full!", q->head != q->tail);
q->used++;
}
err_t sys_mbox_trypost(sys_mbox_t *q, void *msg)
{
LWIP_ASSERT("q != SYS_MBOX_NULL", q != SYS_MBOX_NULL);
LWIP_ASSERT("q->sem != q", q->sem != q);
LWIP_ASSERT("q->q_mem != NULL", q->q_mem != NULL);
LWIP_ASSERT("q->used >= 0", q->used >= 0);
LWIP_ASSERT("q->size > 0", q->size > 0);
LWIP_ASSERT("q->used <= q->size", q->used <= q->size);
if (q->used == q->size) {
return ERR_MEM;
}
sys_mbox_post(q, msg);
return ERR_OK;
}
u32_t sys_arch_mbox_fetch(sys_mbox_t *q, void **msg, u32_t timeout)
{
u32_t ret = 0;
u32_t ret2;
LWIP_ASSERT("q != SYS_MBOX_NULL", q != SYS_MBOX_NULL);
LWIP_ASSERT("q->sem != q", q->sem != q);
LWIP_ASSERT("q->q_mem != NULL", q->q_mem != NULL);
LWIP_ASSERT("q->used >= 0", q->used >= 0);
LWIP_ASSERT("q->size > 0", q->size > 0);
if (q->used == 0) {
/* need to wait */
/* need to wait */
if(!timeout)
{
/* wait infinite */
LWIP_ASSERT("cannot wait without waiting callback", the_waiting_fn != NULL);
do {
int expectSomething = the_waiting_fn(q);
LWIP_ASSERT("q->used >= 0", q->used >= 0);
LWIP_ASSERT("expecting item available but it's 0", !expectSomething || (q->used > 0));
ret++;
} while(q->used == 0);
}
else
{
if (the_waiting_fn) {
int expectSomething = the_waiting_fn(q);
LWIP_ASSERT("expecting item available count but it's 0", !expectSomething || (q->used > 0));
}
LWIP_ASSERT("q->used >= 0", q->used >= 0);
if (q->used == 0) {
if(msg) {
*msg = NULL;
}
return SYS_ARCH_TIMEOUT;
}
ret = 1;
}
}
LWIP_ASSERT("q->used > 0", q->used > 0);
ret2 = sys_arch_mbox_tryfetch(q, msg);
LWIP_ASSERT("got no message", ret2 == 0);
return ret;
}
u32_t sys_arch_mbox_tryfetch(sys_mbox_t *q, void **msg)
{
LWIP_ASSERT("q != SYS_MBOX_NULL", q != SYS_MBOX_NULL);
LWIP_ASSERT("q->sem == q", q->sem == q);
LWIP_ASSERT("q->q_mem != NULL", q->q_mem != NULL);
LWIP_ASSERT("q->used >= 0", q->used >= 0);
LWIP_ASSERT("q->size > 0", q->size > 0);
if (!q->used) {
return SYS_ARCH_TIMEOUT;
}
if(msg) {
*msg = q->q_mem[q->tail];
}
q->tail++;
if (q->tail >= (unsigned int)q->size) {
q->tail = 0;
}
q->used--;
LWIP_ASSERT("q->used >= 0", q->used >= 0);
return 0;
}
#if LWIP_NETCONN_SEM_PER_THREAD
#error LWIP_NETCONN_SEM_PER_THREAD==1 not supported
#endif /* LWIP_NETCONN_SEM_PER_THREAD */
#endif /* !NO_SYS */

72
test/unit/arch/sys_arch.h Normal file
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@ -0,0 +1,72 @@
/*
* Copyright (c) 2017 Simon Goldschmidt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Simon Goldschmidt
*
*/
#ifndef LWIP_HDR_TEST_SYS_ARCH_H
#define LWIP_HDR_TEST_SYS_ARCH_H
typedef int sys_sem_t;
#define sys_sem_valid(sema) ((sema) != NULL)
typedef int sys_mutex_t;
#define sys_mutex_valid(mutex) (((mutex) != NULL)
struct lwip_mbox {
void* sem;
void** q_mem;
unsigned int head, tail;
int size;
int used;
};
typedef struct lwip_mbox sys_mbox_t;
#define SYS_MBOX_NULL NULL
#define sys_mbox_valid(mbox) ((mbox != NULL) && ((mbox)->sem != NULL) && ((mbox)->sem != (void*)-1))
/* DWORD (thread id) is used for sys_thread_t but we won't include windows.h */
typedef u32_t sys_thread_t;
#define SYS_ARCH_DECL_PROTECT(lev)
#define SYS_ARCH_PROTECT(lev)
#define SYS_ARCH_UNPROTECT(lev)
/* to implement doing something while waiting:
* pass a function to test_sys_arch_wait_callback() that returns
* '0' if waiting again and
* '1' if now there should be something to do (used for asserting)
*/
typedef int (*test_sys_arch_waiting_fn)(void* wait_element);
void test_sys_arch_wait_callback(test_sys_arch_waiting_fn waiting_fn);
/* no multithreading supported: define to nothing */
#define LOCK_TCPIP_CORE()
#define UNLOCK_TCPIP_CORE()
#endif /* LWIP_HDR_TEST_SYS_ARCH_H */

4
test/unit/lwip_unittests.c
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@ -8,6 +8,7 @@
#include "etharp/test_etharp.h"
#include "dhcp/test_dhcp.h"
#include "mdns/test_mdns.h"
#include "api/test_sockets.h"
#include "lwip/init.h"
@ -44,7 +45,8 @@ int main(void)
pbuf_suite,
etharp_suite,
dhcp_suite,
mdns_suite
mdns_suite,
sockets_suite
};
size_t num = sizeof(suites)/sizeof(void*);
LWIP_ASSERT("No suites defined", num > 0);

6
test/unit/lwipopts.h
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@ -33,10 +33,10 @@
#define LWIP_HDR_LWIPOPTS_H
/* Prevent having to link sys_arch.c (we don't test the API layers in unit tests) */
#define NO_SYS 1
#define NO_SYS 0
#define SYS_LIGHTWEIGHT_PROT 0
#define LWIP_NETCONN 0
#define LWIP_SOCKET 0
#define LWIP_NETCONN 1
#define LWIP_SOCKET 1
/* Enable DHCP to test it, disable UDP checksum to easier inject packets */
#define LWIP_DHCP 1