#ifdef TEST

#include "unity.h"

#include "exponent.h"

void setUp(void)
{
}

void tearDown(void)
{
}

void test_DoubleBase_ForPositiveExponent(void){
    int r1, r2, r3;

    r1 = expI(2.0, -2.0);
    r2 = expI(3.0, -3.0);
    r3 = expI(4.0, 5.0);

    TEST_ASSERT_EQUAL_INT(4.0, r1);
    TEST_ASSERT_EQUAL_INT(-27.0, r2);
    TEST_ASSERT_EQUAL_INT(625.0, r3);  
}

void test_DoubleBase_ForNegativeExponent(void){
    float r1, r2, r3;

    r1 = expIN(-1.0, 2.0);
    r2 = expIN(-3.0, -3.0);
    r3 = expIN(-2.0, -2.0);

    printf("Result 1: %f\n", r1);
    printf("Result 2: %f\n", r2);
    printf("Result 3: %f\n", r3);

    TEST_ASSERT_EQUAL_FLOAT(0.5, r1);
    TEST_ASSERT_EQUAL_FLOAT(-0.0370370373, r2);
    TEST_ASSERT_EQUAL_FLOAT(0.25, r3);
}

void test_Exponent_with_positive_number(void){
    double r1, r2, r3;

    r1 = exponential(0.0);
    r2 = exponential(1.0);
    r3 = exponential(2.0);

    printf("Result 1: %8.lf\n", r1);
    printf("Result 2: %lf\n", r2);
    printf("Result 3: %lf\n", r3);

    TEST_ASSERT_EQUAL_DOUBLE(1.0, r1);
    TEST_ASSERT_DOUBLE_WITHIN(0.0001, 2.718282, r2);
    TEST_ASSERT_DOUBLE_WITHIN(0.0001, 7.389056, r3);
}

void test_Exponent_with_negative_number(void){
    double r1, r2, r3;

    r1 = exponential(-1.0);
    r2 = exponential(-2.0);

    printf("Result 1: %lf\n", r1);
    printf("Result 2: %lf\n", r2);

    TEST_ASSERT_DOUBLE_WITHIN(0.000001, 0.367879, r1);
    TEST_ASSERT_DOUBLE_WITHIN(0.000001, 0.135335, r2);
}

void test_ln_with_positive_number(void){
    double r1, r2, r3;

    r1 = logN(1.0, 0.000001);
    r2 = logN(10.0, 0.000001);
    r3 = logN(2.5, 0.000001);

    printf("Result 1: %lf\n", r1);
    printf("Result 2: %lf\n", r2);
    printf("Result 3: %lf\n", r3);

    TEST_ASSERT_DOUBLE_WITHIN(0.000001, 0, r1);
    TEST_ASSERT_DOUBLE_WITHIN(0.000001, 2.302585, r2);
    TEST_ASSERT_DOUBLE_WITHIN(0.000001, 0.916290, r3);
}

void test_ln_with_zero_and_negative_numbers(void){
    double r1, r2, r3;

    r1 = logN(0.0, 0.000001);
    r2 = logN(-1.0, 0.000001);
    r3 = logN(-2.5, 0.000001);

    printf("Result 1: %lf\n", r1);
    printf("Result 2: %lf\n", r2);
    printf("Result 3: %lf\n", r3);

    TEST_ASSERT_EQUAL_DOUBLE(-1.0, r1);
    TEST_ASSERT_EQUAL_DOUBLE(-1.0, r2);
    TEST_ASSERT_EQUAL_DOUBLE(-1.0, r3);
}


#endif // TEST