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#include <al/test.h>
#include <al/ring_buffer.h>
#include <al/atomic.h>
#define TEST_BUFFER_SIZE 32
static u8 buffer[TEST_BUFFER_SIZE];
static u8 buffer_ret[TEST_BUFFER_SIZE];
static u8 buffer_half[TEST_BUFFER_SIZE / 2] = {0};
static u8 buffer_over[TEST_BUFFER_SIZE + 16] = {0};
static bool ring_buffer_test_init(void)
{
AL_TEST_START("ring_buffer_init");
struct al_ring_buffer buf;
al_ring_buffer_init(&buf, buffer, TEST_BUFFER_SIZE);
AL_TEST_EQ(buf.start, buffer, ptr);
AL_TEST_EQ(buf.end, buffer + TEST_BUFFER_SIZE, ptr);
AL_TEST_EQ(al_atomic_load(void)(&buf.read, AL_ATOMIC_RELAXED), buffer, ptr);
AL_TEST_EQ(al_atomic_load(void)(&buf.write, AL_ATOMIC_RELAXED), buffer, ptr);
AL_TEST_END();
}
static bool ring_buffer_test_space(void)
{
AL_TEST_START("ring_buffer_space");
struct al_ring_buffer buf;
al_ring_buffer_init(&buf, buffer, TEST_BUFFER_SIZE);
AL_TEST_EQ(al_ring_buffer_space(&buf), TEST_BUFFER_SIZE - 1, size_t);
AL_TEST_END();
}
static bool ring_buffer_test_occupied(void)
{
AL_TEST_START("ring_buffer_occupied");
struct al_ring_buffer buf;
al_ring_buffer_init(&buf, buffer, TEST_BUFFER_SIZE);
AL_TEST_EQ(al_ring_buffer_occupied(&buf), 0, size_t);
AL_TEST_END();
}
static bool ring_buffer_test_read_and_write_chunk(void)
{
AL_TEST_START("ring_buffer_read_and_write_chunk");
struct al_ring_buffer buf;
al_ring_buffer_init(&buf, buffer, TEST_BUFFER_SIZE);
char *data = "TestTEST";
size_t data_size = al_strlen(data) + 1;
size_t size;
u8 *ptr = al_ring_buffer_write_chunk(&buf, &size);
AL_TEST_EQ(size, TEST_BUFFER_SIZE - 1, size_t);
al_memcpy(ptr, data, data_size);
al_ring_buffer_append(&buf, ptr, data_size);
AL_TEST_EQ(al_ring_buffer_occupied(&buf), data_size, size_t);
AL_TEST_EQ(al_ring_buffer_space(&buf), (TEST_BUFFER_SIZE - 1) - data_size, size_t);
ptr = al_ring_buffer_read_chunk(&buf, &size);
AL_TEST_EQ(size, data_size, size_t);
AL_TEST_TRUE((strcmp((char *)ptr, data) == 0));
al_ring_buffer_consume(&buf, ptr, size);
AL_TEST_EQ(al_ring_buffer_occupied(&buf), 0, size_t);
AL_TEST_EQ(al_ring_buffer_space(&buf), TEST_BUFFER_SIZE - 1, size_t);
AL_TEST_END();
}
static bool ring_buffer_test_read_and_write(void)
{
AL_TEST_START("ring_buffer_read_and_write");
struct al_ring_buffer buf;
al_ring_buffer_init(&buf, buffer, TEST_BUFFER_SIZE);
char *data = "TestTEST";
size_t data_size = al_strlen(data) + 1;
al_ring_buffer_write(&buf, (u8 *)data, data_size);
AL_TEST_EQ(al_ring_buffer_occupied(&buf), data_size, size_t);
AL_TEST_EQ(al_ring_buffer_space(&buf), (TEST_BUFFER_SIZE - 1) - data_size, size_t);
al_ring_buffer_read(&buf, (u8 *)buffer_ret, data_size);
AL_TEST_TRUE((strcmp((char *)buffer_ret, data) == 0));
AL_TEST_EQ(al_ring_buffer_occupied(&buf), 0, size_t);
AL_TEST_EQ(al_ring_buffer_space(&buf), TEST_BUFFER_SIZE - 1, size_t);
al_memset(buffer_half, 'd', sizeof(buffer_half));
AL_TEST_EQ(al_ring_buffer_write(&buf, buffer_half, sizeof(buffer_half)), sizeof(buffer_half), size_t);
AL_TEST_EQ(al_ring_buffer_occupied(&buf), sizeof(buffer_half), size_t);
AL_TEST_EQ(al_ring_buffer_space(&buf), (TEST_BUFFER_SIZE - 1) - sizeof(buffer_half), size_t);
AL_TEST_EQ(al_ring_buffer_read(&buf, (u8 *)buffer_ret, data_size), data_size, size_t);
AL_TEST_TRUE(al_memcmp(buffer_ret, "ddddddddd", data_size) == 0);
AL_TEST_EQ(al_ring_buffer_write(&buf, buffer_half, sizeof(buffer_half)), sizeof(buffer_half), size_t);
AL_TEST_EQ(al_ring_buffer_occupied(&buf), TEST_BUFFER_SIZE - data_size, size_t);
AL_TEST_LT(al_atomic_load(void)(&buf.write, AL_ATOMIC_RELAXED), al_atomic_load(void)(&buf.read, AL_ATOMIC_RELAXED), ptr);
size_t space = al_ring_buffer_space(&buf);
AL_TEST_EQ(space, data_size - 1, size_t);
AL_TEST_EQ(al_ring_buffer_write(&buf, buffer_over, sizeof(buffer_over)), space, size_t);
AL_TEST_EQ(al_ring_buffer_read(&buf, buffer_ret, sizeof(buffer_over)), TEST_BUFFER_SIZE - 1, size_t);
AL_TEST_END();
}
static bool ring_buffer_test_peek(void)
{
AL_TEST_START("ring_buffer_peek");
struct al_ring_buffer buf;
al_ring_buffer_init(&buf, buffer, TEST_BUFFER_SIZE);
char *data = "abcabcabcabcabcabcabcabcabcabca";
size_t data_size = al_strlen(data);
AL_TEST_EQ(data_size, TEST_BUFFER_SIZE - 1, size_t);
al_ring_buffer_write(&buf, (u8 *)data, data_size);
al_ring_buffer_peek(&buf, buffer_ret, 0, data_size);
AL_TEST_TRUE(al_memcmp(buffer_ret, data, data_size) == 0);
al_ring_buffer_peek(&buf, buffer_ret, 3, data_size);
AL_TEST_TRUE(al_memcmp(buffer_ret, data + 3, data_size - 3) == 0);
al_ring_buffer_read(&buf, buffer_ret, 3);
AL_TEST_TRUE(al_memcmp(buffer_ret, data, 3) == 0);
al_ring_buffer_write(&buf, (u8 *)data, data_size);
al_ring_buffer_peek(&buf, buffer_ret, 3, data_size);
AL_TEST_TRUE(al_memcmp(buffer_ret, data + 6, data_size - 6) == 0);
al_ring_buffer_peek(&buf, buffer_ret, 0, data_size);
AL_TEST_TRUE(al_memcmp(buffer_ret, "abcabcabcabcabcabcabcabcabcaabc", data_size) == 0);
al_ring_buffer_read(&buf, buffer_ret, (TEST_BUFFER_SIZE - 1) - 4);
al_ring_buffer_peek(&buf, buffer_ret, 0, data_size);
AL_TEST_TRUE(al_memcmp(buffer_ret, "aab", 3) == 0);
AL_TEST_EQ(al_ring_buffer_peek(&buf, buffer_ret, 10, data_size), 0, size_t);
AL_TEST_EQ(al_ring_buffer_peek(&buf, buffer_ret, 3, data_size), 1, size_t);
AL_TEST_EQ(al_ring_buffer_peek(&buf, buffer_ret, 4, data_size), 0, size_t);
al_ring_buffer_peek(&buf, buffer_ret, 1, data_size);
AL_TEST_TRUE(al_memcmp(buffer_ret, "abc", 3) == 0);
AL_TEST_EQ(al_ring_buffer_peek(&buf, buffer_ret, 2, data_size), 2, size_t);
AL_TEST_TRUE(al_memcmp(buffer_ret, "bc", 2) == 0);
al_ring_buffer_read(&buf, buffer_ret, 1);
AL_TEST_EQ(al_ring_buffer_peek(&buf, buffer_ret, 0, data_size), 3, size_t);
AL_TEST_TRUE(al_memcmp(buffer_ret, "abc", 3) == 0);
AL_TEST_EQ(al_ring_buffer_peek(&buf, buffer_ret, 3, data_size), 0, size_t);
AL_TEST_EQ(al_ring_buffer_peek(&buf, buffer_ret, 4, data_size), 0, size_t);
AL_TEST_EQ(al_ring_buffer_read(&buf, buffer_ret, 4), 3, size_t);
AL_TEST_EQ(al_ring_buffer_peek(&buf, buffer_ret, 0, data_size), 0, size_t);
AL_TEST_EQ(al_ring_buffer_peek(&buf, buffer_ret, 1, data_size), 0, size_t);
AL_TEST_EQ(al_ring_buffer_peek(&buf, buffer_ret, 2, data_size), 0, size_t);
AL_TEST_END();
}
bool ring_buffer_tests_run(void)
{
AL_TEST_START_GROUP("ring_buffer");
AL_TEST_RUN(ring_buffer_test_init);
AL_TEST_RUN(ring_buffer_test_space);
AL_TEST_RUN(ring_buffer_test_occupied);
AL_TEST_RUN(ring_buffer_test_read_and_write_chunk);
AL_TEST_RUN(ring_buffer_test_read_and_write);
AL_TEST_RUN(ring_buffer_test_peek);
AL_TEST_END_GROUP();
}
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