gem_test.h

/*
    Copyright (c) 2021 Alethea Katherine Flowers.
    Published under the standard MIT License.
    Full text available at: https://opensource.org/licenses/MIT
*/

#pragma once

/* Common test macros and such. */

#pragma GCC diagnostic ignored "-Wdouble-promotion"

#define ARRAY_LEN(array) (sizeof(array) / sizeof(array[0]))

#define TEST_CASE_BEGIN(name)                                                                                          \
    MunitResult test_##name(const MunitParameter params[], void* data) {                                               \
        (void)params;                                                                                                  \
        (void)data;

#define TEST_CASE_END                                                                                                  \
    return MUNIT_OK;                                                                                                   \
    }

/* Common includes */

#include "fix16.h"
#include "munit.h"
#include <assert.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>

/* Helper methods */

inline static void print_hex(const uint8_t* buf, size_t len) {
    fprintf(stderr, "[");
    for (size_t i = 0; i < len; i++) {
        if (i > 0)
            fprintf(stderr, ", ");
        fprintf(stderr, "0x%02X", buf[i]);
    }
    fprintf(stderr, "]\n");
}

inline static void print_f16(const fix16_t val) {
    char result[16];
    fix16_to_str(val, result, 4);
    printf("%s", result);
}

#define ASSERT_FIX16_CLOSE(val, target, epsilon)                                                                       \
    {                                                                                                                  \
        fix16_t abs_ = fix16_abs(fix16_sub(val, target));                                                              \
        fix16_t eps_ = F16(epsilon);                                                                                   \
        if (abs_ > eps_) {                                                                                             \
            printf("\nAssertion failed, expected ");                                                                   \
            print_f16(target);                                                                                         \
            printf(" actual ");                                                                                        \
            print_f16(val);                                                                                            \
            printf("\n");                                                                                              \
        }                                                                                                              \
        munit_assert_int32(abs_, <=, eps_);                                                                            \
    }

#define ASSERT_FIX16_GT(val, target) munit_assert_int32(val, >, F16(target));
#define ASSERT_FIX16_LT(val, target) munit_assert_int32(val, <, F16(target));

/* Suites */

extern MunitSuite test_midi_core_suite;
extern MunitSuite test_voice_params_suite;
extern MunitSuite test_bezier_suite;
extern MunitSuite test_oscillator_suite;