ci(tcp_transport): upgrade to Catch2 as a component

components/tcp_transport/host_test/main/CMakeLists.txt

@@ -1,4 +1,4 @@
-idf_component_register(SRCS  "test_socks_transport.cpp" "catch_main.cpp"
+idf_component_register(SRCS  "test_socks_transport.cpp"
                         REQUIRES tcp_transport mocked_transport
                         INCLUDE_DIRS "$ENV{IDF_PATH}/tools"
                         WHOLE_ARCHIVE)
@@ -9,4 +9,7 @@ idf_component_get_property(tcp_transport_component tcp_transport COMPONENT_LIB)
 target_link_libraries(${tcp_transport_component} PUBLIC ${lwip_component} ${esp_timer_component})
 target_compile_options(${COMPONENT_LIB} PUBLIC -fsanitize=address -fconcepts)
 target_link_options(${COMPONENT_LIB} PUBLIC -fsanitize=address)
-set_property(TARGET ${COMPONENT_LIB} PROPERTY CXX_STANDARD 20)
+
+# Currently 'main' for IDF_TARGET=linux is defined in freertos component.
+# Since we are using a freertos mock here, need to let Catch2 provide 'main'.
+target_link_libraries(${COMPONENT_LIB} PRIVATE Catch2WithMain)

components/tcp_transport/host_test/main/catch_main.cpp

@@ -1,7 +0,0 @@
-/*
- * SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD
- *
- * SPDX-License-Identifier: Apache-2.0
- */
-#define CATCH_CONFIG_MAIN
-#include "catch/catch.hpp"

components/tcp_transport/host_test/main/idf_component.yml

@@ -1,4 +1,3 @@
 dependencies:
   espressif/fmt: "^9.1.0"
-  idf:
-    version: ">=4.1.0"
+  espressif/catch2: "^3.4.0"

components/tcp_transport/host_test/main/test_socks_transport.cpp

@@ -16,7 +16,8 @@
 #include <netdb.h>
 #include "fmt/core.h"
 #include "fmt/ranges.h"
-#include "catch/catch.hpp"
+#include <catch2/catch_test_macros.hpp>
+#include <catch2/matchers/catch_matchers_all.hpp>
 #include "esp_transport.h"
 #include "esp_transport_socks_proxy.h"