diff --git a/src/platforms/esp32/components/avm_sys/include/esp32_sys.h b/src/platforms/esp32/components/avm_sys/include/esp32_sys.h
index e38368d3db..a432b9f15c 100644
--- a/src/platforms/esp32/components/avm_sys/include/esp32_sys.h
+++ b/src/platforms/esp32/components/avm_sys/include/esp32_sys.h
@@ -89,7 +89,7 @@ struct ESP32PlatformData
 
 extern QueueSetHandle_t event_set;
 extern QueueHandle_t event_queue;
-void esp32_sys_queue_init();
+void esp32_sys_queue_init(void);
 
 void socket_init(Context *ctx, term opts);
 
diff --git a/src/platforms/esp32/components/avm_sys/sys.c b/src/platforms/esp32/components/avm_sys/sys.c
index 10909d9750..b3cb55a718 100644
--- a/src/platforms/esp32/components/avm_sys/sys.c
+++ b/src/platforms/esp32/components/avm_sys/sys.c
@@ -113,8 +113,12 @@ static const char *const revision_atom = "\x8" "revision";
 QueueHandle_t event_queue = NULL;
 QueueSetHandle_t event_set = NULL;
 
-void esp32_sys_queue_init()
+void esp32_sys_queue_init(void)
 {
+    if (event_set != NULL) {
+        return;
+    }
+
     event_set = xQueueCreateSet(EVENT_QUEUE_LEN * 4);
     event_queue = xQueueCreate(EVENT_QUEUE_LEN, sizeof(void *));
     xQueueAddToSet(event_queue, event_set);
diff --git a/src/platforms/esp32/test/main/test_main.c b/src/platforms/esp32/test/main/test_main.c
index 1fc46f33f0..ca4f4acb4b 100644
--- a/src/platforms/esp32/test/main/test_main.c
+++ b/src/platforms/esp32/test/main/test_main.c
@@ -132,10 +132,28 @@ static void eth_stop(esp_netif_t *eth_netif)
 }
 #endif
 
-term avm_test_case(const char *test_module)
+static void prepare_event_queue(void)
 {
     esp32_sys_queue_init();
 
+    QueueSetMemberHandle_t source;
+    while ((source = xQueueSelectFromSet(event_set, 0)) != NULL) {
+        if (UNLIKELY(source != event_queue)) {
+            fprintf(stderr, "Stale member in ESP32 event queue set.\n");
+            AVM_ABORT();
+        }
+
+        void *ignored;
+        if (UNLIKELY(xQueueReceive(event_queue, &ignored, 0) != pdTRUE)) {
+            AVM_ABORT();
+        }
+    }
+}
+
+term avm_test_case(const char *test_module)
+{
+    prepare_event_queue();
+
     GlobalContext *glb = globalcontext_new();
     TEST_ASSERT(glb != NULL);
 
@@ -183,7 +201,7 @@ term avm_test_case(const char *test_module)
 #ifndef AVM_NO_JIT
 TEST_CASE("test_jit_compile", "[test_run]")
 {
-    esp32_sys_queue_init();
+    prepare_event_queue();
 
     GlobalContext *glb = globalcontext_new();
     TEST_ASSERT(glb != NULL);
diff --git a/src/platforms/esp32/test/sdkconfig.ci.wokwi.esp32s2 b/src/platforms/esp32/test/sdkconfig.ci.wokwi.esp32s2
new file mode 100644
index 0000000000..37268b9af7
--- /dev/null
+++ b/src/platforms/esp32/test/sdkconfig.ci.wokwi.esp32s2
@@ -0,0 +1 @@
+CONFIG_ESP_WIFI_STATIC_RX_BUFFER_NUM=6
diff --git a/src/platforms/esp32/test/sdkconfig.ci.wokwi.esp32s2.license b/src/platforms/esp32/test/sdkconfig.ci.wokwi.esp32s2.license
new file mode 100644
index 0000000000..b805ab2cac
--- /dev/null
+++ b/src/platforms/esp32/test/sdkconfig.ci.wokwi.esp32s2.license
@@ -0,0 +1,2 @@
+SPDX-License-Identifier: Apache-2.0
+SPDX-FileCopyrightText: AtomVM Contributors