fix(websocket): Added unit tests to CI + minor fix to pass it

components/esp_websocket_client/test/main/CMakeLists.txt

@@ -0,0 +1,4 @@
+idf_component_register(SRCS "test_websocket_client.c"
+                       REQUIRES test_utils
+                       INCLUDE_DIRS "."
+                       PRIV_REQUIRES unity esp_websocket_client esp_event)

components/esp_websocket_client/test/main/test_websocket_client.c

@@ -0,0 +1,83 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Unlicense OR CC0-1.0
+ *
+ * This test code is in the Public Domain (or CC0 licensed, at your option.)
+ *
+ * Unless required by applicable law or agreed to in writing, this
+ * software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, either express or implied.
+ */
+
+#include <stdlib.h>
+#include <stdbool.h>
+#include <esp_websocket_client.h>
+#include "esp_event.h"
+#include "unity.h"
+#include "test_utils.h"
+
+#include "unity_fixture.h"
+#include "memory_checks.h"
+
+TEST_GROUP(websocket);
+
+TEST_SETUP(websocket)
+{
+#if ESP_IDF_VERSION < ESP_IDF_VERSION_VAL(5, 1, 0)
+    /* IDF v5.0 runs some lazy inits within printf()
+     * This test sets the leak threshold to 0, so we need to call printf()
+     * before recording the heap size in test_utils_record_free_mem()
+     */
+    printf("TEST_SETUP: websocket\n");
+#endif
+    test_utils_record_free_mem();
+    TEST_ESP_OK(test_utils_set_leak_level(0, ESP_LEAK_TYPE_CRITICAL, ESP_COMP_LEAK_GENERAL));
+}
+
+TEST_TEAR_DOWN(websocket)
+{
+    test_utils_finish_and_evaluate_leaks(0, 0);
+}
+
+
+TEST(websocket, websocket_init_deinit)
+{
+    const esp_websocket_client_config_t websocket_cfg = {
+        // no connection takes place, but the uri has to be valid for init() to succeed
+        .uri = "ws://echo.websocket.org",
+    };
+    esp_websocket_client_handle_t client = esp_websocket_client_init(&websocket_cfg);
+    TEST_ASSERT_NOT_EQUAL(NULL, client);
+    esp_websocket_client_destroy(client);
+}
+
+TEST(websocket, websocket_init_invalid_url)
+{
+    const esp_websocket_client_config_t websocket_cfg = {
+        .uri = "INVALID",
+    };
+    esp_websocket_client_handle_t client = esp_websocket_client_init(&websocket_cfg);
+    TEST_ASSERT_NULL(client);
+}
+
+TEST(websocket, websocket_set_invalid_url)
+{
+    const esp_websocket_client_config_t websocket_cfg = {};
+    esp_websocket_client_handle_t client = esp_websocket_client_init(&websocket_cfg);
+    TEST_ASSERT_NOT_EQUAL(NULL, client);
+    TEST_ASSERT_NOT_EQUAL(ESP_OK, esp_websocket_client_set_uri(client, "INVALID"));
+    esp_websocket_client_destroy(client);
+}
+
+TEST_GROUP_RUNNER(websocket)
+{
+    RUN_TEST_CASE(websocket, websocket_init_deinit)
+    RUN_TEST_CASE(websocket, websocket_init_invalid_url)
+    RUN_TEST_CASE(websocket, websocket_set_invalid_url)
+}
+
+void app_main(void)
+{
+    UNITY_MAIN(websocket);
+}