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#include <math.h>
#include <stdbool.h>
#include <stddef.h>
#include "ts.h"
bool ts_test_edge_cases( void )
{
bool result = true;
/* === NULL input === */
/* average with NULL input should return -1 */
{
uint_t k = 3;
int ret = ts_average(NULL, 0, NULL, 0, 5, (ts_constant_t *)&k);
result &= (ret == -1);
}
/* rsi with NULL input should return -1 */
{
uint_t k = 3;
int ret = ts_rsi(NULL, 0, NULL, 0, 5, (ts_constant_t *)&k);
result &= (ret == -1);
}
/* === n = 0 (empty input) === */
/* average with n=0 should return early, no crash */
{
uint_t k = 3;
int ret = ts_average(NULL, 0, NULL, 0, 0, (ts_constant_t *)&k);
result &= (ret == -1);
}
/* rsi with n=0 should not crash */
{
uint_t k = 3;
int ret = ts_rsi(NULL, 0, NULL, 0, 0, (ts_constant_t *)&k);
result &= (ret == -1);
}
/* deviation_standard with n=0 should return early */
{
uint_t k = 3;
int ret = ts_deviation_standard(NULL, 0, NULL, 0, 0, (ts_constant_t *)&k);
result &= (ret == -1);
}
/* variance with n=0 should return early */
{
uint_t k = 3;
int ret = ts_variance(NULL, 0, NULL, 0, 0, (ts_constant_t *)&k);
result &= (ret == -1);
}
/* === n = 1 (single element) === */
/* average with n=1, k=1 should produce the element itself */
{
fp_t const x[] = {5};
fp_t const e[] = {5};
fp_t const * const inp[1] = {x};
fp_t const * const exp[1] = {e};
uint_t k = 1;
result &= ts_test(ts_average, ts_average_offset, inp, exp, 1, (ts_constant_t *)&k, &ts_average_p);
}
/* deviation_standard with n=1, k=1 should produce 0 */
{
fp_t const x[] = {5};
fp_t const e[] = {0};
fp_t const * const inp[1] = {x};
fp_t const * const exp[1] = {e};
uint_t k = 1;
result &= ts_test(ts_deviation_standard, ts_deviation_standard_offset, inp, exp, 1, (ts_constant_t *)&k, &ts_deviation_standard_p);
}
/* variance with n=1, k=1 should produce 0 */
{
fp_t const x[] = {5};
fp_t const e[] = {0};
fp_t const * const inp[1] = {x};
fp_t const * const exp[1] = {e};
uint_t k = 1;
result &= ts_test(ts_variance, ts_variance_offset, inp, exp, 1, (ts_constant_t *)&k, &ts_variance_p);
}
/* === k = 0 (zero period) === */
/* average with k=0 should return early */
{
fp_t x[] = {1, 2, 3, 4, 5};
fp_t y[5] = {0};
fp_t const * const inp[1] = {x};
fp_t * const out[1] = {y};
uint_t k = 0;
int ret = ts_average(out, 1, inp, 1, 5, (ts_constant_t *)&k);
result &= (ret == -1);
}
/* rsi with k=0 should return early */
{
fp_t x[] = {1, 2, 3, 4, 5};
fp_t y[5] = {0};
fp_t const * const inp[1] = {x};
fp_t * const out[1] = {y};
uint_t k = 0;
int ret = ts_rsi(out, 1, inp, 1, 5, (ts_constant_t *)&k);
result &= (ret == -1);
}
/* deviation_standard with k=0 should return early */
{
fp_t x[] = {1, 2, 3, 4, 5};
fp_t y[5] = {0};
fp_t const * const inp[1] = {x};
fp_t * const out[1] = {y};
uint_t k = 0;
int ret = ts_deviation_standard(out, 1, inp, 1, 5, (ts_constant_t *)&k);
result &= (ret == -1);
}
/* variance with k=0 should return early */
{
fp_t x[] = {1, 2, 3, 4, 5};
fp_t y[5] = {0};
fp_t const * const inp[1] = {x};
fp_t * const out[1] = {y};
uint_t k = 0;
int ret = ts_variance(out, 1, inp, 1, 5, (ts_constant_t *)&k);
result &= (ret == -1);
}
/* === k > n (period exceeds data) === */
/* average with k > n should return early */
{
fp_t x[] = {1, 2, 3};
fp_t y[3] = {0};
fp_t const * const inp[1] = {x};
fp_t * const out[1] = {y};
uint_t k = 10;
int ret = ts_average(out, 1, inp, 1, 3, (ts_constant_t *)&k);
result &= (ret == -1);
}
/* deviation_standard with k > n should return early */
{
fp_t x[] = {1, 2, 3};
fp_t y[3] = {0};
fp_t const * const inp[1] = {x};
fp_t * const out[1] = {y};
uint_t k = 10;
int ret = ts_deviation_standard(out, 1, inp, 1, 3, (ts_constant_t *)&k);
result &= (ret == -1);
}
/* variance with k > n should return early */
{
fp_t x[] = {1, 2, 3};
fp_t y[3] = {0};
fp_t const * const inp[1] = {x};
fp_t * const out[1] = {y};
uint_t k = 10;
int ret = ts_variance(out, 1, inp, 1, 3, (ts_constant_t *)&k);
result &= (ret == -1);
}
/* === All-zero input === */
/* average with all-zero input should produce zeros */
{
fp_t const x[] = {0, 0, 0, 0, 0};
fp_t const e[] = {0, 0, 0};
fp_t const * const inp[1] = {x};
fp_t const * const exp[1] = {e};
uint_t k = 3;
result &= ts_test(ts_average, ts_average_offset, inp, exp, 5, (ts_constant_t *)&k, &ts_average_p);
}
/* rsi with all-zero input should not crash (all gains/losses are 0) */
{
fp_t const x[] = {0, 0, 0, 0, 0, 0, 0};
fp_t const e[] = {100, 100, 100, 100, 100};
fp_t const * const inp[1] = {x};
fp_t const * const exp[1] = {e};
uint_t k = 2;
result &= ts_test(ts_rsi, ts_rsi_offset, inp, exp, 7, (ts_constant_t *)&k, &ts_rsi_p);
}
/* deviation_standard with all-zero input should produce 0 */
{
fp_t const x[] = {0, 0, 0, 0, 0};
fp_t const e[] = {0, 0, 0};
fp_t const * const inp[1] = {x};
fp_t const * const exp[1] = {e};
uint_t k = 3;
result &= ts_test(ts_deviation_standard, ts_deviation_standard_offset, inp, exp, 5, (ts_constant_t *)&k, &ts_deviation_standard_p);
}
/* variance with all-zero input should produce 0 */
{
fp_t const x[] = {0, 0, 0, 0, 0};
fp_t const e[] = {0, 0, 0};
fp_t const * const inp[1] = {x};
fp_t const * const exp[1] = {e};
uint_t k = 3;
result &= ts_test(ts_variance, ts_variance_offset, inp, exp, 5, (ts_constant_t *)&k, &ts_variance_p);
}
/* === All-same input (zero variance) === */
/* average with all-same input should produce that value */
{
fp_t const x[] = {7, 7, 7, 7, 7};
fp_t const e[] = {7, 7, 7};
fp_t const * const inp[1] = {x};
fp_t const * const exp[1] = {e};
uint_t k = 3;
result &= ts_test(ts_average, ts_average_offset, inp, exp, 5, (ts_constant_t *)&k, &ts_average_p);
}
/* rsi with all-same input should produce 100 (no losses) */
{
fp_t const x[] = {5, 5, 5, 5, 5, 5, 5};
fp_t const e[] = {100, 100, 100, 100, 100};
fp_t const * const inp[1] = {x};
fp_t const * const exp[1] = {e};
uint_t k = 2;
result &= ts_test(ts_rsi, ts_rsi_offset, inp, exp, 7, (ts_constant_t *)&k, &ts_rsi_p);
}
/* deviation_standard with all-same input should produce 0 */
{
fp_t const x[] = {3, 3, 3, 3, 3};
fp_t const e[] = {0, 0, 0};
fp_t const * const inp[1] = {x};
fp_t const * const exp[1] = {e};
uint_t k = 3;
result &= ts_test(ts_deviation_standard, ts_deviation_standard_offset, inp, exp, 5, (ts_constant_t *)&k, &ts_deviation_standard_p);
}
/* variance with all-same input should produce 0 */
{
fp_t const x[] = {3, 3, 3, 3, 3};
fp_t const e[] = {0, 0, 0};
fp_t const * const inp[1] = {x};
fp_t const * const exp[1] = {e};
uint_t k = 3;
result &= ts_test(ts_variance, ts_variance_offset, inp, exp, 5, (ts_constant_t *)&k, &ts_variance_p);
}
/* === n == k boundary === */
/* average with n==k should succeed (produces 1 output) */
{
fp_t const x[] = {1, 2, 3};
fp_t const e[] = {2};
fp_t const * const inp[1] = {x};
fp_t const * const exp[1] = {e};
uint_t k = 3;
result &= ts_test(ts_average, ts_average_offset, inp, exp, 3, (ts_constant_t *)&k, &ts_average_p);
}
/* rsi with n==k should fail (requires n > k) */
{
fp_t x[] = {1, 2, 3};
fp_t y[3] = {0};
fp_t const * const inp[1] = {x};
fp_t * const out[1] = {y};
uint_t k = 3;
int ret = ts_rsi(out, 1, inp, 1, 3, (ts_constant_t *)&k);
result &= (ret == -1);
}
/* === NaN input === */
/* average with NaN input should return -1 (invalid input) */
{
fp_t x[] = {NAN, 1.0, 2.0, 3.0, 4.0};
fp_t y[5] = {0};
fp_t const * const inp[1] = {x};
fp_t * const out[1] = {y};
uint_t k = 3;
int ret = ts_average(out, 1, inp, 1, 5, (ts_constant_t *)&k);
result &= (ret == -1);
}
/* === Monotonic input (RSI edge cases) === */
/* rsi with strictly ascending input should produce 100 */
{
fp_t const x[] = {1, 2, 3, 4, 5, 6, 7};
fp_t const e[] = {100, 100, 100, 100, 100};
fp_t const * const inp[1] = {x};
fp_t const * const exp[1] = {e};
uint_t k = 2;
result &= ts_test(ts_rsi, ts_rsi_offset, inp, exp, 7, (ts_constant_t *)&k, &ts_rsi_p);
}
/* rsi with strictly descending input should produce 0 */
{
fp_t const x[] = {7, 6, 5, 4, 3, 2, 1};
fp_t const e[] = {0, 0, 0, 0, 0};
fp_t const * const inp[1] = {x};
fp_t const * const exp[1] = {e};
uint_t k = 2;
result &= ts_test(ts_rsi, ts_rsi_offset, inp, exp, 7, (ts_constant_t *)&k, &ts_rsi_p);
}
/* === rsi with k > n === */
{
fp_t x[] = {1, 2, 3};
fp_t y[3] = {0};
fp_t const * const inp[1] = {x};
fp_t * const out[1] = {y};
uint_t k = 10;
int ret = ts_rsi(out, 1, inp, 1, 3, (ts_constant_t *)&k);
result &= (ret == -1);
}
return result;
}
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