Method atypicalPathTest

test/path_object_t.cpp:1106–1149

void PathObjectTest::atypicalPathTest()
{
	// This is a zero-length closed path of three arcs.
	MapCoordVector coords(10, {2.0, 2.0});
	coords[0].setCurveStart(true);
	coords[3].setCurveStart(true);
	coords[6].setCurveStart(true);
	coords[9].setClosePoint(true);
	coords[9].setHolePoint(true);
	
	PathCoordVector path_coords { coords };
	path_coords.update(0);
	QCOMPARE(path_coords.size(), std::size_t(7));
	
	for (std::size_t i = 0, end = path_coords.size(); i< end; ++i)
	{
		switch (i)
		{
		case 0:
		case 2:
		case 4:
		case 6:
			QCOMPARE(std::size_t(path_coords[i].index), (i/2)*3);
			QCOMPARE(path_coords[i].param, 0.0f);
			QCOMPARE(path_coords[i].clen, 0.0f);
			break;
		case 1:
		case 3:
		case 5:
			QCOMPARE(path_coords[i].index, path_coords[i-1].index);
			QVERIFY(path_coords[i].param > 0.0f);
			QVERIFY(path_coords[i].param < 1.0f);
			QCOMPARE(path_coords[i].clen, 0.0f);
			break;
		default:
			Q_UNREACHABLE();
		}
		
		auto split = SplitPathCoord::at(path_coords, i);
		QCOMPARE(std::size_t(split.path_coord_index), i);
		auto tangent = split.tangentVector();
		QVERIFY(qIsNull(tangent.lengthSquared()));
	}
}