/*
 * Author: username
 * Date: todays_date 
 * filename: test_I2C.c
 * description: module_purpose
 */

#include "CppUTest/CommandLineTestRunner.h"

extern "C" 
{
#include "I2C.h"
#include "I2C_internal.h"
}

TEST_GROUP(tg_I2C)
{
    void setup()
    {

    }
    void teardown()
    {

    }
};

/*
     typedef struct
    {
        uint32_t clockspeed;
        uint16_t mode;
        uint16_t dutycycle;
        uint16_t ownaddress1;
        uint16_t ack;
        uint16_t ack_address;
    } i2c_config;
*/

TEST(tg_I2C, GetBusReturnsNonNullOnValidIndecies)
{
    i2c_bus_typedef_p i2cbus_ptr = I2C_GetBus(0);
    CHECK_TRUE_TEXT(i2cbus_ptr != nullptr, "The pointer should have been valid but was nullptr.");
}

TEST(tg_I2C, GetBusReturnsNullOnInvalid)
{

    i2c_bus_typedef_p i2cbus_ptr = I2C_GetBus(I2C_BUS_QTY + 1);
    CHECK_EQUAL_TEXT(nullptr, i2cbus_ptr, "The pointer should be null for invalid indecies.");

}

TEST(tg_I2C, BusFailsOnInvalidconfig)
{

}

TEST(tg_I2C, CreateI2CBus_10Bit)
{
    i2c_config i2c1_config = {
        .clockspeed = I2C_STD_SPEED,
        .mode = I2C_MODE_MASTER,
        .dutycycle = 0,
        .ownaddress = 0,
        .ack = true,
        .ack_address = 0,
    };

    i2c_bus_typedef_p i2c1_ptr = I2C_GetBus(0);

    bool ret = i2c1_ptr->Init(i2c1_ptr, &i2c1_config);
    CHECK_TRUE(ret);
}


TEST_GROUP(tg_I2C_internal)
{
    i2c_config config;
    void setup()
    {
        config.clockspeed = 0;
        config.mode = 0;

    }
    void teardown()
    {

    }
};

TEST(tg_I2C_internal, i2c_configchecksclockspeed)
{
    bool ret = false;

    for(config.clockspeed = 0; config.clockspeed < I2C_INVALID_SPEED; config.clockspeed++){
        ret = is_i2c_config_valid(&config);
        CHECK_TRUE(ret);
    }
    
    config.clockspeed = I2C_INVALID_SPEED;
    ret = is_i2c_config_valid(&config);
    CHECK_FALSE_TEXT(ret, "config check accepted invalid i2c clockspeed!");
}

TEST(tg_I2C_internal, i2c_configchecksmode)
{
    bool ret = false;

    for(config.mode = 0; config.mode < I2C_MODE_INVALID; config.mode++){
        ret = is_i2c_config_valid(&config);
        CHECK_TRUE(ret);
    }

    config.mode = I2C_MODE_INVALID;
    ret = is_i2c_config_valid(&config);
    CHECK_FALSE_TEXT(ret, "config check accepted invalid i2c mode!");
}

TEST(tg_I2C_internal, i2c_configchecksdutycycle)
{
    bool ret = false;

    for(config.dutycycle= 0; config.dutycycle < I2C_DUTYCYCLE_INVALID; config.dutycycle++){
        ret = is_i2c_config_valid(&config);
        CHECK_TRUE(ret);
    }

    config.dutycycle= I2C_DUTYCYCLE_INVALID;
    ret = is_i2c_config_valid(&config);
    CHECK_FALSE_TEXT(ret, "config check accepted invalid i2c dutycycle!");
}

TEST(tg_I2C_internal, is10bitaddresschecksCorrectly)
{
    bool ret = false;
    
    CHECK_FALSE_TEXT(ret, "check");
}

TEST(tg_I2C_internal, is7bitaddresschecksCorrectly)
{
    bool ret = false;

    CHECK_FALSE_TEXT(ret, "check");
}