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#include "../src/wav.h"
#include <stddef.h>
#include <stdio.h>
#include <criterion/criterion.h>
#include <criterion/internal/assert.h>
#include <criterion/internal/test.h>
#include <string.h>
Test(wav, read_file) {
smrt_arena_t *arena = smrt_arena_create(MiB(4), KiB(4), false);
wav_master_chunk_t mchunk;
wav_fmt_chunk_t fmtchunk;
wav_data_t data = load_wav_file(arena, "./tests/fixtures/sine.wav", &mchunk, &fmtchunk);
u8 idcheck[4] = { 'f', 'm', 't', ' ' };
cr_expect(memcmp(fmtchunk.chunk_id, idcheck, 4) == 0);
cr_expect(fmtchunk.audio_format == 1);
cr_expect(fmtchunk.num_channels == 1);
cr_expect(fmtchunk.bits_per_sample == 16);
cr_expect(data.sample_count == 48000);
smrt_arena_destroy(arena);
}
Test(wav, sample_data_matches_source) {
smrt_arena_t *arena = smrt_arena_create(MiB(4), KiB(4), false);
wav_master_chunk_t mchunk;
wav_fmt_chunk_t fmtchunk;
wav_data_t data = load_wav_file(arena, "./tests/fixtures/sine.wav", &mchunk, &fmtchunk);
i16 expected[8] = { 0, 2147, 4242, 6291, 8185, 9935, 11580, 12979 };
i16 *samples = (i16*)((u8*)data.samples + WAV_DATA_BASE_POS);
for (int i = 0; i < 8; i++) {
cr_expect_eq(samples[i], expected[i]);
}
smrt_arena_destroy(arena);
}
Test(wav, missing_file_returns_null) {
smrt_arena_t *arena = smrt_arena_create(MiB(4), KiB(4), false);
wav_master_chunk_t mchunk;
wav_fmt_chunk_t fmtchunk;
wav_data_t data = load_wav_file(arena, "./tests/fixtures/does_not_exist.wav", &mchunk, &fmtchunk);
cr_expect_eq(data.samples, NULL);
smrt_arena_destroy(arena);
}
Test(wav, stereo_16bit) {
smrt_arena_t *arena = smrt_arena_create(MiB(4), KiB(4), false);
wav_master_chunk_t mchunk;
wav_fmt_chunk_t fmtchunk;
wav_data_t data = load_wav_file(arena, "./tests/fixtures/stereo16.wav", &mchunk, &fmtchunk);
cr_expect(fmtchunk.num_channels == 2);
cr_expect(fmtchunk.bits_per_sample == 16);
cr_expect(data.sample_count == 5);
i16 *samples = (i16*)((u8*)data.samples + WAV_DATA_BASE_POS);
cr_expect_eq(samples[0], 0);
cr_expect_eq(samples[1], 0);
cr_expect_eq(samples[2], 100);
cr_expect_eq(samples[3], -100);
smrt_arena_destroy(arena);
}
Test(wav, mono_8bit) {
smrt_arena_t *arena = smrt_arena_create(MiB(4), KiB(4), false);
wav_master_chunk_t mchunk;
wav_fmt_chunk_t fmtchunk;
wav_data_t data = load_wav_file(arena, "./tests/fixtures/mono8.wav", &mchunk, &fmtchunk);
cr_expect(fmtchunk.num_channels == 1);
cr_expect(fmtchunk.bits_per_sample == 8);
cr_expect(data.sample_count == 6);
u8 *samples = (u8*)data.samples + WAV_DATA_BASE_POS;
u8 expected[6] = { 0, 64, 128, 192, 255, 32 };
for (int i = 0; i < 6; i++) {
cr_expect_eq(samples[i], expected[i]);
}
smrt_arena_destroy(arena);
}
Test(wav, skips_unknown_chunk_before_fmt) {
smrt_arena_t *arena = smrt_arena_create(MiB(4), KiB(4), false);
wav_master_chunk_t mchunk;
wav_fmt_chunk_t fmtchunk;
wav_data_t data = load_wav_file(arena, "./tests/fixtures/extra_chunk.wav", &mchunk, &fmtchunk);
u8 idcheck[4] = { 'f', 'm', 't', ' ' };
cr_expect(memcmp(fmtchunk.chunk_id, idcheck, 4) == 0);
cr_expect(fmtchunk.num_channels == 1);
cr_expect(fmtchunk.sample_rate == 22050);
cr_expect(data.sample_count == 4);
smrt_arena_destroy(arena);
}
Test(wav, odd_sized_chunk_before_fmt, .timeout = 2) {
smrt_arena_t *arena = smrt_arena_create(MiB(4), KiB(4), false);
wav_master_chunk_t mchunk;
wav_fmt_chunk_t fmtchunk;
wav_data_t data = load_wav_file(arena, "./tests/fixtures/odd_chunk.wav", &mchunk, &fmtchunk);
u8 idcheck[4] = { 'f', 'm', 't', ' ' };
cr_expect(memcmp(fmtchunk.chunk_id, idcheck, 4) == 0);
cr_expect(fmtchunk.sample_rate == 16000);
cr_expect(data.sample_count == 4);
smrt_arena_destroy(arena);
}
Test(wav, missing_data_chunk, .timeout = 2) {
smrt_arena_t *arena = smrt_arena_create(MiB(4), KiB(4), false);
wav_master_chunk_t mchunk;
wav_fmt_chunk_t fmtchunk;
wav_data_t data = load_wav_file(arena, "./tests/fixtures/missing_data_chunk.wav", &mchunk, &fmtchunk);
cr_expect_eq(data.samples, NULL);
smrt_arena_destroy(arena);
}
Test(wav, arena_too_small_for_data) {
smrt_arena_t *arena = smrt_arena_create(KiB(1), KiB(4), false);
wav_master_chunk_t mchunk;
wav_fmt_chunk_t fmtchunk;
wav_data_t data = load_wav_file(arena, "./tests/fixtures/sine.wav", &mchunk, &fmtchunk);
cr_expect_eq(data.samples, NULL);
cr_expect_eq(data.sample_count, 0);
smrt_arena_destroy(arena);
}
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