2022-2-WS_group_project_bankmanagement-system/tests/test_interestCalculator.c

#ifdef TEST

#include "unity.h"
#include "../src/interestCalculator.c"

void setUp(void)
{
}

void tearDown(void)
{
}

void test_initiateInterest(void) {

   /* Arrange */

    int length   = 10;
    float startAmount[] = {34, 233, 4400, 1600, 245, 34544, 3767.32, 1422, 5435, 8199};
    float yearlyInterest=12;
    float durationInYears=2.5;

    float monthlyInterest=8;
    float durationInMonths=3.9;

    float resultsYearly[length];
    float resultsMonthly[length];
    
    float expectedYearly[]={44.2,302.9,5720,2080,318.5,44907.2,4897.516,1848.6,7065.5,10658.7};
    float expectedMonthly[]={44.608,305.696,5772.8,2099.2,321.44,45321.73,4942.724,1865.664,7130.72,10757.09};

   /* Act */

    for (int i = 0; i < length; i++) {
        resultsYearly[i]=initiateInterest(startAmount[i],yearlyInterest/100, durationInYears);
    }
    for (int i = 0; i < length; i++) {
        resultsMonthly[i]=initiateInterest(startAmount[i],monthlyInterest/100, durationInMonths);
    }

   /* Assert*/

    for (int i = 0; i < length; i++) {
        TEST_ASSERT_EQUAL_FLOAT(expectedYearly[i], resultsYearly[i]);
        TEST_ASSERT_EQUAL_FLOAT(expectedMonthly[i], resultsMonthly[i]);
    }
}


#endif // TEST