Working test runner!!!

lib/catch2/CMakeLists.txt

@@ -1 +1,4 @@
-idf_component_register(SRCS "catch_runner.cpp" INCLUDE_DIRS "include")
+idf_component_register(
+  SRCS "catch_runner.cpp"
+  INCLUDE_DIRS "include"
+  REQUIRES "console")

lib/catch2/catch_runner.cpp

@@ -3,8 +3,28 @@
 #define CATCH_CONFIG_RUNNER
 #include "catch2/catch.hpp"
 
-void run_catch(void) {
-  int argc = 1;
-  char *argv = "catch2";
-    Catch::Session().run( argc, &argv );
+#include <stdio.h>
+#include <string.h>
+#include "esp_console.h"
+#include "esp_log.h"
+#include "esp_system.h"
+
+// There must be exactly on Session instance at all times; attempting to destroy
+// this will result in memory corruption.
+static Catch::Session sCatchSession;
+
+int exec_catch2(int argc, char** argv) {
+  // Reset the existing configuration before applying a new one. Otherwise we
+  // will get the combination of all configs.
+  sCatchSession.configData() = Catch::ConfigData();
+
+  int result = sCatchSession.applyCommandLine(argc, argv);
+  if (result != 0) {
+    return result;
+  }
+
+  // Returns number of failures.
+  int failures = sCatchSession.run();
+
+  return failures > 0;
 }

lib/catch2/include/catch_runner.hpp

@@ -1,3 +1,7 @@
 #pragma once
 
-void run_catch(void);
+/*
+ * Executes the Catch2 test runner as if called from the commandline on a
+ * standard unix-y system.
+ */
+int exec_catch2(int argc, char **argv);