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#include "unit-test.h"
#include "prio-queue.h"
static int intcmp(const void *va, const void *vb, void *data UNUSED)
{
const int *a = va, *b = vb;
return *a - *b;
}
#define MISSING -1
#define DUMP -2
#define STACK -3
#define GET -4
#define REVERSE -5
static int show(int *v)
{
return v ? *v : MISSING;
}
static void test_prio_queue(int *input, size_t input_size,
int *result, size_t result_size)
{
struct prio_queue pq = { intcmp };
size_t j = 0;
for (size_t i = 0; i < input_size; i++) {
void *peek, *get;
switch(input[i]) {
case GET:
peek = prio_queue_peek(&pq);
get = prio_queue_get(&pq);
cl_assert(peek == get);
cl_assert(j < result_size);
cl_assert_equal_i(result[j], show(get));
j++;
break;
case DUMP:
while ((peek = prio_queue_peek(&pq))) {
get = prio_queue_get(&pq);
cl_assert(peek == get);
cl_assert(j < result_size);
cl_assert_equal_i(result[j], show(get));
j++;
}
break;
case STACK:
pq.compare = NULL;
break;
case REVERSE:
prio_queue_reverse(&pq);
break;
default:
prio_queue_put(&pq, &input[i]);
break;
}
}
cl_assert_equal_i(j, result_size);
clear_prio_queue(&pq);
}
#define TEST_INPUT(input, result) \
test_prio_queue(input, ARRAY_SIZE(input), result, ARRAY_SIZE(result))
void test_prio_queue__basic(void)
{
TEST_INPUT(((int []){ 2, 6, 3, 10, 9, 5, 7, 4, 5, 8, 1, DUMP }),
((int []){ 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10 }));
}
void test_prio_queue__mixed(void)
{
TEST_INPUT(((int []){ 6, 2, 4, GET, 5, 3, GET, GET, 1, DUMP }),
((int []){ 2, 3, 4, 1, 5, 6 }));
}
void test_prio_queue__empty(void)
{
TEST_INPUT(((int []){ 1, 2, GET, GET, GET, 1, 2, GET, GET, GET }),
((int []){ 1, 2, MISSING, 1, 2, MISSING }));
}
void test_prio_queue__stack(void)
{
TEST_INPUT(((int []){ STACK, 8, 1, 5, 4, 6, 2, 3, DUMP }),
((int []){ 3, 2, 6, 4, 5, 1, 8 }));
}
void test_prio_queue__reverse_stack(void)
{
TEST_INPUT(((int []){ STACK, 1, 2, 3, 4, 5, 6, REVERSE, DUMP }),
((int []){ 1, 2, 3, 4, 5, 6 }));
}
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