unity: allow test task stack size to be configured

tools/unit-test-app/components/unity/Kconfig

@@ -0,0 +1,15 @@
+menu "Unity test framework"
+
+config UNITY_FREERTOS_PRIORITY
+	int "Priority of Unity test task"
+	default 5
+
+config UNITY_FREERTOS_CPU
+	int "CPU to run Unity test task on"
+	default 0
+
+config UNITY_FREERTOS_STACK_SIZE
+	int "Stack size of Unity test task, in bytes"
+	default 8192
+
+endmenu

tools/unit-test-app/components/unity/include/unity_config.h

@@ -8,10 +8,12 @@
 // Adapt Unity to our environment, disable FP support
 
 #include <esp_err.h>
+#include <sdkconfig.h>
 
 /* Some definitions applicable to Unity running in FreeRTOS */
-#define UNITY_FREERTOS_PRIORITY 5
-#define UNITY_FREERTOS_CPU 0
+#define UNITY_FREERTOS_PRIORITY CONFIG_UNITY_FREERTOS_PRIORITY
+#define UNITY_FREERTOS_CPU CONFIG_UNITY_FREERTOS_CPU
+#define UNITY_FREERTOS_STACK_SIZE CONFIG_UNITY_FREERTOS_STACK_SIZE
 
 #define UNITY_EXCLUDE_FLOAT
 #define UNITY_EXCLUDE_DOUBLE

tools/unit-test-app/configs/libsodium

@@ -1 +1,2 @@
 TEST_COMPONENTS=libsodium
+CONFIG_UNITY_FREERTOS_STACK_SIZE=12288

tools/unit-test-app/main/app_main.c

@@ -19,6 +19,6 @@ void app_main()
 
     // Note: if unpinning this task, change the way run times are calculated in
     // unity_platform
-    xTaskCreatePinnedToCore(unityTask, "unityTask", 8192, NULL,
+    xTaskCreatePinnedToCore(unityTask, "unityTask", UNITY_FREERTOS_STACK_SIZE, NULL,
                             UNITY_FREERTOS_PRIORITY, NULL, UNITY_FREERTOS_CPU);
 }