#include "clay_libgit2.h"
#include "vector.h"

/* initial size of 1 would cause writing past array bounds */
void test_vector__0(void)
{
  git_vector x;
  int i;
  git_vector_init(&x, 1, NULL);
  for (i = 0; i < 10; ++i) {
    git_vector_insert(&x, (void*) 0xabc);
  }
  git_vector_free(&x);
}


/* don't read past array bounds on remove() */
void test_vector__1(void)
{
  git_vector x;
  // make initial capacity exact for our insertions.
  git_vector_init(&x, 3, NULL);
  git_vector_insert(&x, (void*) 0xabc);
  git_vector_insert(&x, (void*) 0xdef);
  git_vector_insert(&x, (void*) 0x123);

  git_vector_remove(&x, 0);  // used to read past array bounds.
  git_vector_free(&x);
}


static int test_cmp(const void *a, const void *b)
{
	return *(const int *)a - *(const int *)b;
}

/* remove duplicates */
void test_vector__2(void)
{
	git_vector x;
	int *ptrs[2];

	ptrs[0] = git__malloc(sizeof(int));
	ptrs[1] = git__malloc(sizeof(int));

	*ptrs[0] = 2;
	*ptrs[1] = 1;

	must_pass(git_vector_init(&x, 5, test_cmp));
	must_pass(git_vector_insert(&x, ptrs[0]));
	must_pass(git_vector_insert(&x, ptrs[1]));
	must_pass(git_vector_insert(&x, ptrs[1]));
	must_pass(git_vector_insert(&x, ptrs[0]));
	must_pass(git_vector_insert(&x, ptrs[1]));
	must_be_true(x.length == 5);
	git_vector_uniq(&x);
	must_be_true(x.length == 2);
	git_vector_free(&x);

	free(ptrs[0]);
	free(ptrs[1]);
}