legacy_timer: move unit test to test app

components/driver/test_apps/legacy_timer_driver/CMakeLists.txt

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+# This is the project CMakeLists.txt file for the test subproject
+cmake_minimum_required(VERSION 3.5)
+
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+project(legacy_timer_driver_test)

components/driver/test_apps/legacy_timer_driver/README.md

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+| Supported Targets | ESP32 | ESP32-S2 | ESP32-S3 | ESP32-C3 |
+| ----------------- | ----- | -------- | -------- | -------- |

components/driver/test_apps/legacy_timer_driver/app_test.py

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+# SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
+import glob
+import os
+
+import ttfw_idf
+from tiny_test_fw import Utility
+
+
+@ttfw_idf.idf_component_unit_test(env_tag='COMPONENT_UT_GENERIC', target=['esp32', 'esp32s2', 'esp32s3', 'esp32c3'])
+def test_component_ut_legacy_timer_driver(env, _):  # type: (ttfw_idf.TinyFW.Env, None) -> None
+    # Get the names of all configs (sdkconfig.ci.* files)
+    config_files = glob.glob(os.path.join(os.path.dirname(__file__), 'sdkconfig.ci.*'))
+    config_names = [os.path.basename(s).replace('sdkconfig.ci.', '') for s in config_files]
+
+    # Run test once with binaries built for each config
+    for name in config_names:
+        Utility.console_log(f'Checking config "{name}"... ', end='')
+        dut = env.get_dut('gptimer', 'components/driver/test_apps/legacy_timer_driver', app_config_name=name)
+        dut.start_app()
+        stdout = dut.expect('Press ENTER to see the list of tests', full_stdout=True)
+        dut.write('*')
+        stdout = dut.expect("Enter next test, or 'enter' to see menu", full_stdout=True, timeout=80)
+        ttfw_idf.ComponentUTResult.parse_result(stdout,ttfw_idf.TestFormat.UNITY_BASIC)
+        env.close_dut(dut.name)
+        Utility.console_log(f'Test config "{name}" done')
+
+
+if __name__ == '__main__':
+    test_component_ut_legacy_timer_driver()

components/driver/test_apps/legacy_timer_driver/main/CMakeLists.txt

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+set(srcs "test_app_main.c"
+         "test_legacy_timer.c")
+
+idf_component_register(SRCS ${srcs}
+                       PRIV_REQUIRES driver unity)
+
+target_link_libraries(${COMPONENT_LIB} INTERFACE "-u test_app_include_legacy_timer")

components/driver/test_apps/legacy_timer_driver/main/test_app_main.c

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+/*
+ * SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "unity.h"
+#include "unity_test_runner.h"
+#include "esp_heap_caps.h"
+
+#define TEST_MEMORY_LEAK_THRESHOLD (-600)
+
+static size_t before_free_8bit;
+static size_t before_free_32bit;
+
+static void check_leak(size_t before_free, size_t after_free, const char *type)
+{
+    ssize_t delta = after_free - before_free;
+    printf("MALLOC_CAP_%s: Before %u bytes free, After %u bytes free (delta %d)\n", type, before_free, after_free, delta);
+    TEST_ASSERT_MESSAGE(delta >= TEST_MEMORY_LEAK_THRESHOLD, "memory leak");
+}
+
+void setUp(void)
+{
+    before_free_8bit = heap_caps_get_free_size(MALLOC_CAP_8BIT);
+    before_free_32bit = heap_caps_get_free_size(MALLOC_CAP_32BIT);
+}
+
+void tearDown(void)
+{
+    size_t after_free_8bit = heap_caps_get_free_size(MALLOC_CAP_8BIT);
+    size_t after_free_32bit = heap_caps_get_free_size(MALLOC_CAP_32BIT);
+    check_leak(before_free_8bit, after_free_8bit, "8BIT");
+    check_leak(before_free_32bit, after_free_32bit, "32BIT");
+}
+
+void app_main(void)
+{
+    unity_run_menu();
+}

components/driver/test_apps/legacy_timer_driver/sdkconfig.ci.release

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+CONFIG_PM_ENABLE=y
+CONFIG_FREERTOS_USE_TICKLESS_IDLE=y
+CONFIG_COMPILER_OPTIMIZATION_SIZE=y
+CONFIG_BOOTLOADER_COMPILER_OPTIMIZATION_SIZE=y
+CONFIG_COMPILER_OPTIMIZATION_ASSERTIONS_SILENT=y

components/driver/test_apps/legacy_timer_driver/sdkconfig.defaults

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+CONFIG_FREERTOS_HZ=1000
+CONFIG_ESP_TASK_WDT=n
+CONFIG_GPTIMER_SUPPRESS_DEPRECATE_WARN=y