lwip: Migrate unit tests to test_apps

components/lwip/test/CMakeLists.txt

@@ -1,3 +0,0 @@
-idf_component_register(SRC_DIRS "."
-                    PRIV_REQUIRES test_utils)
-target_compile_options(${COMPONENT_LIB} PRIVATE "-Wno-format")

components/lwip/test_apps/.build-test-rules.yml

@@ -0,0 +1,6 @@
+# Documentation: .gitlab/ci/README.md#manifest-file-to-control-the-buildtest-apps
+
+components/lwip/test_apps:
+  disable_test:
+    - if: IDF_TARGET != "esp32"
+      reason: running this test for one target only is enough to be sufficiently confident about no regression in lwip

components/lwip/test_apps/CMakeLists.txt

@@ -0,0 +1,7 @@
+# This is the project CMakeLists.txt file for the test subproject
+cmake_minimum_required(VERSION 3.16)
+
+set(EXTRA_COMPONENT_DIRS "$ENV{IDF_PATH}/tools/unit-test-app/components")
+
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+project(lwip_test)

components/lwip/test_apps/README.md

@@ -0,0 +1,2 @@
+| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-S2 | ESP32-S3 |
+| ----------------- | ----- | -------- | -------- | -------- | -------- |

components/lwip/test_apps/main/CMakeLists.txt

@@ -0,0 +1,4 @@
+idf_component_register(SRCS "lwip_test.c"
+                       REQUIRES test_utils
+                       INCLUDE_DIRS "."
+                       PRIV_REQUIRES unity lwip test_utils)

components/lwip/test_apps/main/lwip_test.c

@@ -3,10 +3,19 @@
  *
  * SPDX-License-Identifier: Apache-2.0
  */
+#include <stdio.h>
+#include <string.h>
+#include <esp_types.h>
+
 #include "freertos/FreeRTOS.h"
 #include "freertos/event_groups.h"
 #include "test_utils.h"
 #include "unity.h"
+#include "unity_fixture.h"
+
+#include "unity_test_utils.h"
+#include "soc/soc_caps.h"
+
 #include "lwip/inet.h"
 #include "lwip/netdb.h"
 #include "lwip/sockets.h"
@@ -18,8 +27,17 @@
 #define ETH_PING_END_TIMEOUT_MS (ETH_PING_DURATION_MS * 2)
 #define TEST_ICMP_DESTINATION_DOMAIN_NAME "127.0.0.1"
 
-#if !TEMPORARY_DISABLED_FOR_TARGETS(ESP32C2)
-//IDF-5047
+
+TEST_GROUP(lwip);
+
+TEST_SETUP(lwip)
+{
+}
+
+TEST_TEAR_DOWN(lwip)
+{
+}
+
 static void test_on_ping_success(esp_ping_handle_t hdl, void *args)
 {
     uint8_t ttl;
@@ -31,7 +49,7 @@ static void test_on_ping_success(esp_ping_handle_t hdl, void *args)
     esp_ping_get_profile(hdl, ESP_PING_PROF_IPADDR, &target_addr, sizeof(target_addr));
     esp_ping_get_profile(hdl, ESP_PING_PROF_SIZE, &recv_len, sizeof(recv_len));
     esp_ping_get_profile(hdl, ESP_PING_PROF_TIMEGAP, &elapsed_time, sizeof(elapsed_time));
-    printf("%d bytes from %s icmp_seq=%d ttl=%d time=%d ms\n",
+    printf("%" PRId32 "bytes from %s icmp_seq=%d ttl=%d time=%" PRId32 " ms\n",
            recv_len, inet_ntoa(target_addr.u_addr.ip4), seqno, ttl, elapsed_time);
 }
 
@@ -54,13 +72,13 @@ static void test_on_ping_end(esp_ping_handle_t hdl, void *args)
     esp_ping_get_profile(hdl, ESP_PING_PROF_REQUEST, &transmitted, sizeof(transmitted));
     esp_ping_get_profile(hdl, ESP_PING_PROF_REPLY, &received, sizeof(received));
     esp_ping_get_profile(hdl, ESP_PING_PROF_DURATION, &total_time_ms, sizeof(total_time_ms));
-    printf("%d packets transmitted, %d received, time %dms\n", transmitted, received, total_time_ms);
+    printf("%" PRId32 " packets transmitted, %" PRId32 " received, time %" PRId32 "ms\n", transmitted, received, total_time_ms);
     if (transmitted == received) {
         xEventGroupSetBits(eth_event_group, ETH_PING_END_BIT);
     }
 }
 
-TEST_CASE("localhost ping test", "[lwip]")
+TEST(lwip, localhost_ping_test)
 {
     EventBits_t bits;
     EventGroupHandle_t eth_event_group = xEventGroupCreate();
@@ -112,9 +130,8 @@ TEST_CASE("localhost ping test", "[lwip]")
 
     vEventGroupDelete(eth_event_group);
 }
-#endif //!TEMPORARY_DISABLED_FOR_TARGETS(ESP32C2)
 
-TEST_CASE("dhcp server init/deinit", "[lwip][leaks=0]")
+TEST(lwip, dhcp_server_init_deinit)
 {
     dhcps_t *dhcps = dhcps_new();
     TEST_ASSERT_NOT_NULL(dhcps);
@@ -124,7 +141,7 @@ TEST_CASE("dhcp server init/deinit", "[lwip][leaks=0]")
     dhcps_delete(dhcps);
 }
 
-TEST_CASE("dhcp server start/stop on localhost", "[lwip]")
+TEST(lwip, dhcp_server_start_stop_localhost)
 {
     test_case_uses_tcpip();
     dhcps_t *dhcps = dhcps_new();
@@ -142,3 +159,15 @@ TEST_CASE("dhcp server start/stop on localhost", "[lwip]")
     TEST_ASSERT(dhcps_stop(dhcps, netif) == ERR_OK);
     dhcps_delete(dhcps);
 }
+
+TEST_GROUP_RUNNER(lwip)
+{
+    RUN_TEST_CASE(lwip, localhost_ping_test)
+    RUN_TEST_CASE(lwip, dhcp_server_init_deinit)
+    RUN_TEST_CASE(lwip, dhcp_server_start_stop_localhost)
+}
+
+void app_main(void)
+{
+    UNITY_MAIN(lwip);
+}

components/lwip/test_apps/pytest_lwip.py

@@ -0,0 +1,11 @@
+# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
+
+import pytest
+from pytest_embedded import Dut
+
+
+@pytest.mark.esp32
+@pytest.mark.generic
+def test_lwip(dut: Dut) -> None:
+    dut.expect_unity_test_output()

components/lwip/test_apps/sdkconfig.defaults

@@ -0,0 +1,2 @@
+CONFIG_UNITY_ENABLE_FIXTURE=y
+CONFIG_UNITY_ENABLE_IDF_TEST_RUNNER=n