/**
* Test which verifies that guac_common_rect_extend() expands the given
* rectangle as necessary to contain at least the given bounds.
*/
void test_rect__extend() {
guac_common_rect max;
guac_common_rect rect;
guac_common_rect_init(&rect, 10, 10, 90, 90);
guac_common_rect_init(&max, 0, 0, 100, 100);
guac_common_rect_extend(&rect, &max);
CU_ASSERT_EQUAL(0, rect.x);
CU_ASSERT_EQUAL(0, rect.y);
CU_ASSERT_EQUAL(100, rect.width);
CU_ASSERT_EQUAL(100, rect.height);
}
void test_guac_rect() {
guac_common_rect max;
/*
* Test init method
*/
guac_common_rect_init(&max, 0, 0, 100, 100);
CU_ASSERT_EQUAL(0, max.x);
CU_ASSERT_EQUAL(0, max.y);
CU_ASSERT_EQUAL(100, max.width);
CU_ASSERT_EQUAL(100, max.height);
/*
* Test constrain method
*/
guac_common_rect rect;
guac_common_rect_init(&rect, -10, -10, 110, 110);
guac_common_rect_init(&max, 0, 0, 100, 100);
guac_common_rect_constrain(&rect, &max);
CU_ASSERT_EQUAL(0, rect.x);
CU_ASSERT_EQUAL(0, rect.y);
CU_ASSERT_EQUAL(100, rect.width);
CU_ASSERT_EQUAL(100, rect.height);
/*
* Test extend method
*/
guac_common_rect_init(&rect, 10, 10, 90, 90);
guac_common_rect_init(&max, 0, 0, 100, 100);
guac_common_rect_extend(&rect, &max);
CU_ASSERT_EQUAL(0, rect.x);
CU_ASSERT_EQUAL(0, rect.y);
CU_ASSERT_EQUAL(100, rect.width);
CU_ASSERT_EQUAL(100, rect.height);
/*
* Test adjust method
*/
int cell_size = 16;
/* Simple adjustment */
guac_common_rect_init(&rect, 0, 0, 25, 25);
guac_common_rect_init(&max, 0, 0, 100, 100);
guac_common_rect_expand_to_grid(cell_size, &rect, &max);
CU_ASSERT_EQUAL(0, rect.x);
CU_ASSERT_EQUAL(0, rect.y);
CU_ASSERT_EQUAL(32, rect.width);
CU_ASSERT_EQUAL(32, rect.height);
/* Adjustment with moving of rect */
guac_common_rect_init(&rect, 75, 75, 25, 25);
guac_common_rect_init(&max, 0, 0, 100, 100);
guac_common_rect_expand_to_grid(cell_size, &rect, &max);
CU_ASSERT_EQUAL(max.width - 32, rect.x);
CU_ASSERT_EQUAL(max.height - 32, rect.y);
CU_ASSERT_EQUAL(32, rect.width);
CU_ASSERT_EQUAL(32, rect.height);
guac_common_rect_init(&rect, -5, -5, 25, 25);
guac_common_rect_init(&max, 0, 0, 100, 100);
guac_common_rect_expand_to_grid(cell_size, &rect, &max);
CU_ASSERT_EQUAL(0, rect.x);
CU_ASSERT_EQUAL(0, rect.y);
CU_ASSERT_EQUAL(32, rect.width);
CU_ASSERT_EQUAL(32, rect.height);
/* Adjustment with moving and clamping of rect */
guac_common_rect_init(&rect, 0, 0, 25, 15);
guac_common_rect_init(&max, 0, 5, 32, 15);
guac_common_rect_expand_to_grid(cell_size, &rect, &max);
CU_ASSERT_EQUAL(max.x, rect.x);
CU_ASSERT_EQUAL(max.y, rect.y);
CU_ASSERT_EQUAL(max.width, rect.width);
CU_ASSERT_EQUAL(max.height, rect.height);
/*
* Rectangle intersection tests
*/
guac_common_rect min;
guac_common_rect_init(&min, 10, 10, 10, 10);
/* Rectangle intersection - empty
* rectangle is outside */
guac_common_rect_init(&rect, 25, 25, 5, 5);
int res = guac_common_rect_intersects(&rect, &min);
CU_ASSERT_EQUAL(0, res);
/* Rectangle intersection - complete
* rectangle is completely inside */
guac_common_rect_init(&rect, 11, 11, 5, 5);
res = guac_common_rect_intersects(&rect, &min);
CU_ASSERT_EQUAL(2, res);
/* Rectangle intersection - partial
* rectangle intersects UL */
guac_common_rect_init(&rect, 8, 8, 5, 5);
res = guac_common_rect_intersects(&rect, &min);
CU_ASSERT_EQUAL(1, res);
/* Rectangle intersection - partial
* rectangle intersects LR */
guac_common_rect_init(&rect, 18, 18, 5, 5);
res = guac_common_rect_intersects(&rect, &min);
CU_ASSERT_EQUAL(1, res);
/* Rectangle intersection - complete
* rect intersects along UL but inside */
guac_common_rect_init(&rect, 10, 10, 5, 5);
res = guac_common_rect_intersects(&rect, &min);
CU_ASSERT_EQUAL(2, res);
/* Rectangle intersection - partial
* rectangle intersects along L but outside */
guac_common_rect_init(&rect, 5, 10, 5, 5);
res = guac_common_rect_intersects(&rect, &min);
CU_ASSERT_EQUAL(1, res);
/* Rectangle intersection - complete
* rectangle intersects along LR but rest is inside */
guac_common_rect_init(&rect, 15, 15, 5, 5);
res = guac_common_rect_intersects(&rect, &min);
CU_ASSERT_EQUAL(2, res);
/* Rectangle intersection - partial
* rectangle intersects along R but rest is outside */
guac_common_rect_init(&rect, 20, 10, 5, 5);
res = guac_common_rect_intersects(&rect, &min);
CU_ASSERT_EQUAL(1, res);
/* Rectangle intersection - partial
* rectangle encloses min; which is a partial intersection */
guac_common_rect_init(&rect, 5, 5, 20, 20);
res = guac_common_rect_intersects(&rect, &min);
CU_ASSERT_EQUAL(1, res);
/*
* Basic test of clip and split method
*/
guac_common_rect_init(&min, 10, 10, 10, 10);
guac_common_rect cut;
/* Clip top */
guac_common_rect_init(&rect, 10, 5, 10, 10);
res = guac_common_rect_clip_and_split(&rect, &min, &cut);
CU_ASSERT_EQUAL(1, res);
CU_ASSERT_EQUAL(10, cut.x);
CU_ASSERT_EQUAL(5, cut.y);
CU_ASSERT_EQUAL(10, cut.width);
CU_ASSERT_EQUAL(5, cut.height);
CU_ASSERT_EQUAL(10, rect.x);
CU_ASSERT_EQUAL(10, rect.y);
CU_ASSERT_EQUAL(10, rect.width);
CU_ASSERT_EQUAL(5, rect.height);
/* Clip bottom */
guac_common_rect_init(&rect, 10, 15, 10, 10);
res = guac_common_rect_clip_and_split(&rect, &min, &cut);
CU_ASSERT_EQUAL(1, res);
CU_ASSERT_EQUAL(10, cut.x);
CU_ASSERT_EQUAL(20, cut.y);
CU_ASSERT_EQUAL(10, cut.width);
CU_ASSERT_EQUAL(5, cut.height);
CU_ASSERT_EQUAL(10, rect.x);
CU_ASSERT_EQUAL(15, rect.y);
CU_ASSERT_EQUAL(10, rect.width);
CU_ASSERT_EQUAL(5, rect.height);
/* Clip left */
guac_common_rect_init(&rect, 5, 10, 10, 10);
res = guac_common_rect_clip_and_split(&rect, &min, &cut);
CU_ASSERT_EQUAL(1, res);
CU_ASSERT_EQUAL(5, cut.x);
CU_ASSERT_EQUAL(10, cut.y);
CU_ASSERT_EQUAL(5, cut.width);
CU_ASSERT_EQUAL(10, cut.height);
CU_ASSERT_EQUAL(10, rect.x);
CU_ASSERT_EQUAL(10, rect.y);
CU_ASSERT_EQUAL(5, rect.width);
CU_ASSERT_EQUAL(10, rect.height);
/* Clip right */
guac_common_rect_init(&rect, 15, 10, 10, 10);
res = guac_common_rect_clip_and_split(&rect, &min, &cut);
CU_ASSERT_EQUAL(1, res);
CU_ASSERT_EQUAL(20, cut.x);
CU_ASSERT_EQUAL(10, cut.y);
CU_ASSERT_EQUAL(5, cut.width);
CU_ASSERT_EQUAL(10, cut.height);
CU_ASSERT_EQUAL(15, rect.x);
CU_ASSERT_EQUAL(10, rect.y);
CU_ASSERT_EQUAL(5, rect.width);
CU_ASSERT_EQUAL(10, rect.height);
/*
* Test a rectangle which completely covers the hole.
* Clip and split until done.
*/
guac_common_rect_init(&rect, 5, 5, 20, 20);
/* Clip top */
res = guac_common_rect_clip_and_split(&rect, &min, &cut);
CU_ASSERT_EQUAL(1, res);
CU_ASSERT_EQUAL(5, cut.x);
CU_ASSERT_EQUAL(5, cut.y);
CU_ASSERT_EQUAL(20, cut.width);
CU_ASSERT_EQUAL(5, cut.height);
CU_ASSERT_EQUAL(5, rect.x);
CU_ASSERT_EQUAL(10, rect.y);
CU_ASSERT_EQUAL(20, rect.width);
CU_ASSERT_EQUAL(15, rect.height);
/* Clip left */
res = guac_common_rect_clip_and_split(&rect, &min, &cut);
CU_ASSERT_EQUAL(1, res);
CU_ASSERT_EQUAL(5, cut.x);
CU_ASSERT_EQUAL(10, cut.y);
CU_ASSERT_EQUAL(5, cut.width);
CU_ASSERT_EQUAL(15, cut.height);
CU_ASSERT_EQUAL(10, rect.x);
CU_ASSERT_EQUAL(10, rect.y);
CU_ASSERT_EQUAL(15, rect.width);
CU_ASSERT_EQUAL(15, rect.height);
/* Clip bottom */
res = guac_common_rect_clip_and_split(&rect, &min, &cut);
CU_ASSERT_EQUAL(1, res);
CU_ASSERT_EQUAL(10, cut.x);
CU_ASSERT_EQUAL(20, cut.y);
CU_ASSERT_EQUAL(15, cut.width);
CU_ASSERT_EQUAL(5, cut.height);
CU_ASSERT_EQUAL(10, rect.x);
CU_ASSERT_EQUAL(10, rect.y);
CU_ASSERT_EQUAL(15, rect.width);
CU_ASSERT_EQUAL(10, rect.height);
/* Clip right */
res = guac_common_rect_clip_and_split(&rect, &min, &cut);
CU_ASSERT_EQUAL(20, cut.x);
CU_ASSERT_EQUAL(10, cut.y);
CU_ASSERT_EQUAL(5, cut.width);
CU_ASSERT_EQUAL(10, cut.height);
CU_ASSERT_EQUAL(10, rect.x);
CU_ASSERT_EQUAL(10, rect.y);
CU_ASSERT_EQUAL(10, rect.width);
CU_ASSERT_EQUAL(10, rect.height);
/* Make sure nothing is left to do */
res = guac_common_rect_clip_and_split(&rect, &min, &cut);
CU_ASSERT_EQUAL(0, res);
}
