// Copyright (c) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.

#ifdef __cplusplus
#include <cstdlib>
#include <cstddef>
#else
#include <stdlib.h>
#include <stddef.h>
#include <stdbool.h>
#endif

#include "testrunnerswitcher.h"
#include "azure_macro_utils/macro_utils.h"

#include "umock_c/umock_c.h"
#include "umock_c/umock_c_negative_tests.h"
#include "umock_c/umocktypes_charptr.h"

#define ENABLE_MOCKS
#include "azure_c_shared_utility/platform.h"
#undef ENABLE_MOCKS

#include "iothub.h"

static TEST_MUTEX_HANDLE test_serialize_mutex;
MU_DEFINE_ENUM_STRINGS(UMOCK_C_ERROR_CODE, UMOCK_C_ERROR_CODE_VALUES)

static void on_umock_c_error(UMOCK_C_ERROR_CODE error_code)
{
    char temp_str[256];
    (void)snprintf(temp_str, sizeof(temp_str), "umock_c reported error :%s", MU_ENUM_TO_STRING(UMOCK_C_ERROR_CODE, error_code));
    ASSERT_FAIL(temp_str);
}

BEGIN_TEST_SUITE(iothub_ut)

TEST_SUITE_INITIALIZE(suite_init)
{
    test_serialize_mutex = TEST_MUTEX_CREATE();
    ASSERT_IS_NOT_NULL(test_serialize_mutex);

    umock_c_init(on_umock_c_error);

    REGISTER_GLOBAL_MOCK_RETURN(platform_init, 0);
    REGISTER_GLOBAL_MOCK_FAIL_RETURN(platform_init, __LINE__);
}

TEST_SUITE_CLEANUP(suite_cleanup)
{
    umock_c_deinit();
    TEST_MUTEX_DESTROY(test_serialize_mutex);
}

TEST_FUNCTION(IoTHub_Init_succeed)
{
    //arrange
    STRICT_EXPECTED_CALL(platform_init());

    //act
    int result = IoTHub_Init();

    //assert
    ASSERT_ARE_EQUAL(int, 0, result);
    ASSERT_ARE_EQUAL(char_ptr, umock_c_get_expected_calls(), umock_c_get_actual_calls());
}

TEST_FUNCTION(IoTHub_Init_fail)
{
    //arrange
    STRICT_EXPECTED_CALL(platform_init()).SetReturn(__LINE__);

    //act
    int result = IoTHub_Init();

    //assert
    ASSERT_ARE_NOT_EQUAL(int, 0, result);
    ASSERT_ARE_EQUAL(char_ptr, umock_c_get_expected_calls(), umock_c_get_actual_calls());
}

TEST_FUNCTION(IoTHub_Deinit_succeed)
{
    //arrange
    STRICT_EXPECTED_CALL(platform_deinit());

    //act
    IoTHub_Deinit();

    //assert
    ASSERT_ARE_EQUAL(char_ptr, umock_c_get_expected_calls(), umock_c_get_actual_calls());
}

END_TEST_SUITE(iothub_ut)