$Id: RegionTestcase.cpp 7533 2004-05-12 06:37:18Z jackburton $
This file implements a base class for all tests of the OpenBeOS
BRegion code.
*/
#include "RegionTestcase.h"
#include <Region.h>
#include <Rect.h>
#include <assert.h>
#include <math.h>
* Method: RegionTestcase::RegionTestcase()
* Descr: This is the constructor for this class.
*/
RegionTestcase::RegionTestcase(std::string name) :
TestCase(name)
{
const int numRectsPerRegion = 3;
float theRegions[][numRectsPerRegion][4] =
{
{
{10.0, 10.0, 50.0, 50.0},
{25.0, 10.0, 75.0, 40.0},
{70.0, 100.0, 90.0, 120.0}
},
{
{15.0, 15.0, 45.0, 45.0},
{30.0, 15.0, 70.0, 35.0},
{75.0, 105.0, 85.0, 115.0}
},
{
{15.0, 15.0, 55.0, 55.0},
{30.0, 15.0, 80.0, 45.0},
{75.0, 105.0, 95.0, 125.0}
},
{
{210.0, 210.0, 250.0, 250.0},
{225.0, 210.0, 275.0, 240.0},
{270.0, 300.0, 290.0, 320.0}
},
{
{-50.0, -50.0, -10.0, -10.0},
{-75.0, -40.0, -25.0, -10.0},
{-90.0, -120.0, -70.0, -100.0}
},
{
{-50.0, -30.0, 100.0, 120.0},
{-140.0, 120.0, 340.0, 905.0},
{-90.0, -120.0, 90.0, 120.0}
},
{
{10.3, 10.8, 50.2, 50.9},
{25.1, 10.7, 75.8, 40.4},
{70.6, 100.6, 90.1, 120.3}
},
{
{15.0, 25.0, 75.0, 80.0},
{30.0, 15.0, 80.0, 45.0},
{60.0, 20.0, 95.0, 225.0}
},
{
{0.0, 50.0, 47.0, 50.0},
{99.0, 50.0, 399.0, 50.0},
{-100.0, -20.0, 100.0, -20.0}
},
{
{0.0, 50.0, 47.0, 50.0},
{100.0, 50.0, 399.0, 50.0},
{-100.0, -20.0, 100.0, -20.0}
}
};
const int numTestRegions = sizeof(theRegions) / sizeof(theRegions[0]);
listOfRegions.AddItem(new BRegion);
for(int regionNum = 0; regionNum < numTestRegions; regionNum++) {
BRegion *tempRegion = new BRegion;
for(int rectNum = 0; rectNum < numRectsPerRegion; rectNum++) {
tempRegion->Include(BRect(theRegions[regionNum][rectNum][0],
theRegions[regionNum][rectNum][1],
theRegions[regionNum][rectNum][2],
theRegions[regionNum][rectNum][3]));
}
listOfRegions.AddItem(tempRegion);
}
}
* Method: RegionTestcase::~RegionTestcase()
* Descr: This is the destructor for this class.
*/
RegionTestcase::~RegionTestcase()
{
while(!listOfRegions.IsEmpty()) {
delete static_cast<BRegion *>(listOfRegions.RemoveItem(int32(0)));
}
}
* Method: RegionTestcase::GetPointsInRect()
* Descr: This member function returns an array of BPoints on the edge and
* inside the passed in BRect. It also returns the number of points
* in the array.
*/
int RegionTestcase::GetPointsInRect(BRect theRect, BPoint **pointArrayPtr)
{
*pointArrayPtr = pointArray;
if (!theRect.IsValid()) {
return(0);
}
float xIncrement = (theRect.Width() + 1.0) / (numPointsPerSide - 1);
float yIncrement = (theRect.Height() + 1.0) / (numPointsPerSide - 1);
int numPoints = 0;
for(int i = 0; i < numPointsPerSide; i++) {
float xCoord = theRect.left + (i * xIncrement);
if (i == numPointsPerSide - 1) {
xCoord = theRect.right;
}
for(int j = 0; j < numPointsPerSide; j++) {
float yCoord = theRect.top + (j * yIncrement);
if (j == numPointsPerSide - 1) {
yCoord = theRect.bottom;
}
pointArray[numPoints].Set(floor(xCoord), floor(yCoord));
assert(theRect.Contains(pointArray[numPoints]));
numPoints++;
}
}
return(numPoints);
}
* Method: RegionTestcase::CheckFrame()
* Descr: This member function checks that the BRegion's frame matches
* the regions contents.
*/
void RegionTestcase::CheckFrame(BRegion *theRegion)
{
BRect theFrame = theRegion->Frame();
if (theFrame.IsValid()) {
assert(!RegionIsEmpty(theRegion));
BRect testFrame = theRegion->RectAt(0);
assert(theFrame.Contains(testFrame));
for(int i = 1; i < theRegion->CountRects(); i++) {
BRect tempRect = theRegion->RectAt(i);
assert(theFrame.Contains(tempRect));
testFrame = testFrame | tempRect;
}
assert(testFrame == theFrame);
} else {
assert(RegionIsEmpty(theRegion));
}
}
* Method: RegionTestcase::RegionsAreEqual()
* Descr: This member function returns true if the two BRegion's passed
* in are the same, otherwise it returns false.
*/
bool RegionTestcase::RegionsAreEqual(BRegion *regionA, BRegion *regionB)
{
bool result = false;
if (regionA->CountRects() == regionB->CountRects()) {
bool gotAMatch = true;
for(int i = 0; i < regionA->CountRects(); i++) {
gotAMatch = false;
for(int j = 0; j < regionB->CountRects(); j++) {
if (regionA->RectAt(i) == regionB->RectAt(j)) {
gotAMatch = true;
break;
}
}
if (!gotAMatch) {
break;
}
}
if (gotAMatch) {
result = true;
}
}
if (!result) {
BRegion tempRegion(*regionA);
tempRegion.Exclude(regionB);
if (RegionIsEmpty(&tempRegion)) {
tempRegion = *regionB;
tempRegion.Exclude(regionA);
if (RegionIsEmpty(&tempRegion)) {
result = true;
}
}
}
if (result) {
assert(regionA->Frame() == regionB->Frame());
if (regionA->CountRects() == 0) {
assert(RegionIsEmpty(regionA));
assert(RegionIsEmpty(regionB));
}
}
return(result);
}
* Method: RegionTestcase::RegionsIsEmpty()
* Descr: This member function returns true if the BRegion passed
* in is an empty region, otherwise it returns false.
*/
bool RegionTestcase::RegionIsEmpty(BRegion *theRegion)
{
if (theRegion->CountRects() == 0) {
assert(!theRegion->Frame().IsValid());
return(true);
}
assert(theRegion->Frame().IsValid());
return(false);
}
* Method: RegionTestcase::PerformTest()
* Descr: This member function iterates over the set of BRegion's for
* testing and calls testOneRegion() for each region. Then it
* calls testTwoRegions() for each pair of regions (including
* when the two regions are the same).
*/
void RegionTestcase::PerformTest(void)
{
int numItems = listOfRegions.CountItems();
for(int i = 0; i < numItems; i++) {
BRegion *testRegion = static_cast<BRegion *>(listOfRegions.ItemAt(i));
CheckFrame(testRegion);
testOneRegion(testRegion);
}
for(int i = 0; i < numItems; i++) {
BRegion *testRegionA = static_cast<BRegion *>(listOfRegions.ItemAt(i));
for(int j = 0; j < numItems; j++) {
BRegion *testRegionB = static_cast<BRegion *>(listOfRegions.ItemAt(j));
testTwoRegions(testRegionA, testRegionB);
}
}
}
