#ifdef TEST

#include "unity.h"

#include "reihen.h"
#include "exponent.h"
#include "logarithmus.h"

void setUp(void)
{
}

void tearDown(void)
{
}

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

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

    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);

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

void test_pi(void){
    double r1;

    r1 = pi(1e-8);
    
    TEST_ASSERT_DOUBLE_WITHIN(0.0000001, 3.14159265, r1);
}

void test_degrees_to_radians(){
    double r1, r2, r3, r4;

    r1 = radians(90.0);
    r2 = radians(180.0);
    r3 = radians(51.6);
    r4 = radians(36.97);

    printf("%lf\n", r1);
    printf("%lf\n", r2);
    printf("%lf\n", r3);
    printf("%lf\n", r4);

    TEST_ASSERT_DOUBLE_WITHIN(0.000001, 1.570796, r1);
    TEST_ASSERT_DOUBLE_WITHIN(0.000001, pi(1e-8), r2);
    TEST_ASSERT_DOUBLE_WITHIN(0.000001, 0.900589, r3);
    TEST_ASSERT_DOUBLE_WITHIN(0.000001, 0.645248, r4);
}

#endif // TEST