ci(log): upgrade to Catch2 as a component

components/log/host_test/log_test/main/CMakeLists.txt

@@ -1,5 +1,8 @@
 idf_component_register(SRCS "log_test.cpp"
-                    INCLUDE_DIRS
-                    "."
-                    $ENV{IDF_PATH}/tools/catch
-                    REQUIRES log)
+                    INCLUDE_DIRS "."
+                    REQUIRES log
+                    WHOLE_ARCHIVE)
+
+# Currently 'main' for IDF_TARGET=linux is defined in freertos component.
+# Since we are using a freertos mock here, need to let Catch2 provide 'main'.
+target_link_libraries(${COMPONENT_LIB} PRIVATE Catch2WithMain)

components/log/host_test/log_test/main/idf_component.yml

@@ -0,0 +1,2 @@
+dependencies:
+  espressif/catch2: "^3.4.0"

components/log/host_test/log_test/main/log_test.cpp

@@ -6,13 +6,12 @@
    software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
    CONDITIONS OF ANY KIND, either express or implied.
 */
-#define CATCH_CONFIG_MAIN
 #include <cstdio>
 #include <regex>
 #include <iostream>
 #include "esp_log.h"
 
-#include "catch.hpp"
+#include <catch2/catch_test_macros.hpp>
 
 using namespace std;