add some code

managed_components/espressif__esp_lcd_touch_cst816s/test_apps/CMakeLists.txt

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+# The following lines of boilerplate have to be in your project's CMakeLists
+# in this exact order for cmake to work correctly
+cmake_minimum_required(VERSION 3.5)
+set(EXTRA_COMPONENT_DIRS "$ENV{IDF_PATH}/tools/unit-test-app/components")
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+project(test_esp_lcd_touch_cst816s)

managed_components/espressif__esp_lcd_touch_cst816s/test_apps/main/CMakeLists.txt

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+idf_component_register(SRCS "test_esp_lcd_touch_cst816s.c")

managed_components/espressif__esp_lcd_touch_cst816s/test_apps/main/idf_component.yml

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+## IDF Component Manager Manifest File
+dependencies:
+  idf: ">=4.4"
+  esp_lcd_touch_cst816s:
+    version: "*"
+    override_path: "../../../esp_lcd_touch_cst816s"

managed_components/espressif__esp_lcd_touch_cst816s/test_apps/main/test_esp_lcd_touch_cst816s.c

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+/*
+ * SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: CC0-1.0
+ */
+
+#include <inttypes.h>
+#include "driver/i2c.h"
+#include "driver/gpio.h"
+#include "esp_log.h"
+#include "unity.h"
+#include "unity_test_runner.h"
+
+#include "esp_lcd_touch_cst816s.h"
+
+#define TEST_TOUCH_I2C_NUM       (0)
+#define TEST_TOUCH_I2C_CLK_HZ    (400000)
+
+#define TEST_LCD_H_RES              (240)
+#define TEST_LCD_V_RES              (240)
+
+/* LCD touch pins */
+#define TEST_TOUCH_I2C_SCL       (GPIO_NUM_18)
+#define TEST_TOUCH_I2C_SDA       (GPIO_NUM_8)
+#define TEST_TOUCH_GPIO_INT      (GPIO_NUM_3)
+
+TEST_CASE("test cst816s to initialize touch", "[cst816s][i2c]")
+{
+    /* Initilize I2C */
+    const i2c_config_t i2c_conf = {
+        .mode = I2C_MODE_MASTER,
+        .sda_io_num = TEST_TOUCH_I2C_SDA,
+        .sda_pullup_en = GPIO_PULLUP_DISABLE,
+        .scl_io_num = TEST_TOUCH_I2C_SCL,
+        .scl_pullup_en = GPIO_PULLUP_DISABLE,
+        .master.clk_speed = TEST_TOUCH_I2C_CLK_HZ
+    };
+    TEST_ESP_OK(i2c_param_config(TEST_TOUCH_I2C_NUM, &i2c_conf));
+    TEST_ESP_OK(i2c_driver_install(TEST_TOUCH_I2C_NUM, i2c_conf.mode, 0, 0, 0));
+
+    /* Initialize touch HW */
+    const esp_lcd_touch_config_t tp_cfg = {
+        .x_max = TEST_LCD_H_RES,
+        .y_max = TEST_LCD_V_RES,
+        .rst_gpio_num = GPIO_NUM_NC, // Shared with LCD reset
+        .int_gpio_num = TEST_TOUCH_GPIO_INT,
+        .levels = {
+            .reset = 0,
+            .interrupt = 0,
+        },
+        .flags = {
+            .swap_xy = 0,
+            .mirror_x = 1,
+            .mirror_y = 0,
+        },
+    };
+
+    esp_lcd_touch_handle_t touch_handle;
+    esp_lcd_panel_io_handle_t tp_io_handle = NULL;
+    const esp_lcd_panel_io_i2c_config_t tp_io_config = ESP_LCD_TOUCH_IO_I2C_CST816S_CONFIG();
+    TEST_ESP_OK(esp_lcd_new_panel_io_i2c((esp_lcd_i2c_bus_handle_t)TEST_TOUCH_I2C_NUM, &tp_io_config, &tp_io_handle));
+    TEST_ESP_OK(esp_lcd_touch_new_i2c_cst816s(tp_io_handle, &tp_cfg, &touch_handle));
+}
+
+void app_main(void)
+{
+    printf("CST816S Test\r\n");
+    unity_run_menu();
+}

managed_components/espressif__esp_lcd_touch_cst816s/test_apps/sdkconfig.defaults

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+CONFIG_FREERTOS_HZ=1000
+CONFIG_ESP_TASK_WDT_EN=n