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#include "queue.h"
#include "song.h"
void
song_free(G_GNUC_UNUSED struct song *song)
{
}
G_GNUC_UNUSED
static void
dump_order(const struct queue *queue)
{
g_printerr("queue length=%u, order:\n", queue_length(queue));
for (unsigned i = 0; i < queue_length(queue); ++i)
g_printerr(" [%u] -> %u (prio=%u)\n", i, queue->order[i],
queue->items[queue->order[i]].priority);
}
static void
check_descending_priority(G_GNUC_UNUSED const struct queue *queue,
unsigned start_order)
{
assert(start_order < queue_length(queue));
uint8_t last_priority = 0xff;
for (unsigned order = start_order; order < queue_length(queue); ++order) {
unsigned position = queue_order_to_position(queue, order);
uint8_t priority = queue->items[position].priority;
assert(priority <= last_priority);
(void)last_priority;
last_priority = priority;
}
}
int
main(G_GNUC_UNUSED int argc, G_GNUC_UNUSED char **argv)
{
struct song songs[16];
struct queue queue;
queue_init(&queue, 32);
for (unsigned i = 0; i < G_N_ELEMENTS(songs); ++i)
queue_append(&queue, &songs[i], 0);
assert(queue_length(&queue) == G_N_ELEMENTS(songs));
/* priority=10 for 4 items */
queue_set_priority_range(&queue, 4, 8, 10, -1);
queue.random = true;
queue_shuffle_order(&queue);
check_descending_priority(&queue, 0);
for (unsigned i = 0; i < 4; ++i) {
assert(queue_position_to_order(&queue, i) >= 4);
}
for (unsigned i = 4; i < 8; ++i) {
assert(queue_position_to_order(&queue, i) < 4);
}
for (unsigned i = 8; i < G_N_ELEMENTS(songs); ++i) {
assert(queue_position_to_order(&queue, i) >= 4);
}
/* priority=50 one more item */
queue_set_priority_range(&queue, 15, 16, 50, -1);
check_descending_priority(&queue, 0);
assert(queue_position_to_order(&queue, 15) == 0);
for (unsigned i = 0; i < 4; ++i) {
assert(queue_position_to_order(&queue, i) >= 4);
}
for (unsigned i = 4; i < 8; ++i) {
assert(queue_position_to_order(&queue, i) >= 1 &&
queue_position_to_order(&queue, i) < 5);
}
for (unsigned i = 8; i < 15; ++i) {
assert(queue_position_to_order(&queue, i) >= 5);
}
/* priority=20 for one of the 4 priority=10 items */
queue_set_priority_range(&queue, 3, 4, 20, -1);
check_descending_priority(&queue, 0);
assert(queue_position_to_order(&queue, 3) == 1);
assert(queue_position_to_order(&queue, 15) == 0);
for (unsigned i = 0; i < 3; ++i) {
assert(queue_position_to_order(&queue, i) >= 5);
}
for (unsigned i = 4; i < 8; ++i) {
assert(queue_position_to_order(&queue, i) >= 2 &&
queue_position_to_order(&queue, i) < 6);
}
for (unsigned i = 8; i < 15; ++i) {
assert(queue_position_to_order(&queue, i) >= 6);
}
/* priority=20 for another one of the 4 priority=10 items;
pass "after_order" (with priority=10) and see if it's moved
after that one */
unsigned current_order = 4;
unsigned current_position =
queue_order_to_position(&queue, current_order);
unsigned a_order = 3;
unsigned a_position = queue_order_to_position(&queue, a_order);
assert(queue.items[a_position].priority == 10);
queue_set_priority(&queue, a_position, 20, current_order);
current_order = queue_position_to_order(&queue, current_position);
assert(current_order == 3);
a_order = queue_position_to_order(&queue, a_position);
assert(a_order == 4);
check_descending_priority(&queue, current_order + 1);
/* priority=70 for one of the last items; must be inserted
right after the current song, before the priority=20 one we
just created */
unsigned b_order = 10;
unsigned b_position = queue_order_to_position(&queue, b_order);
assert(queue.items[b_position].priority == 0);
queue_set_priority(&queue, b_position, 70, current_order);
current_order = queue_position_to_order(&queue, current_position);
assert(current_order == 3);
b_order = queue_position_to_order(&queue, b_position);
assert(b_order == 4);
check_descending_priority(&queue, current_order + 1);
/* priority=60 for the old prio50 item; must not be moved,
because it's before the current song, and it's status
hasn't changed (it was already higher before) */
unsigned c_order = 0;
unsigned c_position = queue_order_to_position(&queue, c_order);
assert(queue.items[c_position].priority == 50);
queue_set_priority(&queue, c_position, 60, current_order);
current_order = queue_position_to_order(&queue, current_position);
assert(current_order == 3);
c_order = queue_position_to_order(&queue, c_position);
assert(c_order == 0);
/* move the prio=20 item back */
a_order = queue_position_to_order(&queue, a_position);
assert(a_order == 5);
assert(queue.items[a_position].priority == 20);
queue_set_priority(&queue, a_position, 5, current_order);
current_order = queue_position_to_order(&queue, current_position);
assert(current_order == 3);
a_order = queue_position_to_order(&queue, a_position);
assert(a_order == 6);
}
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