/*
 * Author: Jake G 
 * Date: 2024 
 * filename: test_MockADC.c
 * description: 
 */

#include "CppUTest/CommandLineTestRunner.h"
#include "CppUTestExt/MockSupport.h"
#include <cstdint>

extern "C" 
{
#include "MockADC.h"
}

TEST_GROUP(test_MockADC)
{
    void setup()
    {

    }
    void teardown()
    {
        mock().checkExpectations();
        mock().clear();
    }
};

TEST(test_MockADC, ADC_InitExpects)
{
    mock().expectOneCall("ADC_Init")
        .withUnsignedIntParameter("pin_num", 7);

    ADC_Init(7);
}

TEST(test_MockADC, ADC_EnableExpects)
{
    mock().expectOneCall("ADC_Enable");

    ADC_Enable();
}


TEST(test_MockADC, ADC_DisableExpect)
{
    mock().expectOneCall("ADC_Disable");

    ADC_Disable();
}

TEST(test_MockADC, ADC_ReadValue)
{
    MockADC_ZeroIndex();
    MockADC_PushValue(512);
 
    mock().expectOneCall("ADC_ReadValue_Impl")
        .withUnsignedIntParameter("pin_num", 0x2);

    uint16_t val = ADC_ReadValue(0x2);
    LONGS_EQUAL(512, val);
    
}

TEST(test_MockADC, ADC_ReadValueReturnsZeroOnEmptyBuffer)
{
    MockADC_ZeroIndex();
    
    mock().expectOneCall("ADC_ReadValue_Impl")
        .withUnsignedIntParameter("pin_num", 0x2)
        .andReturnValue(0x0000);

    uint16_t val = ADC_ReadValue(0x2);
    LONGS_EQUAL(0, val);
}

TEST(test_MockADC, MockADC_PushValueDoesntOverflowArray)
{
    MockADC_ZeroIndex();
    for(int i = 0; i < 257; i++){
        MockADC_PushValue(512+i); 
        CHECK_TRUE(MockADC_GetIndex() <= 255);
    }
}

TEST(test_MockADC, MockADC_SetupSetsGlobal)
{
    CHECK_FALSE(MockADC_IsSetup());
    
    ADC_Setup();

    CHECK_TRUE(MockADC_IsSetup());
}