def testPolylineSubstring(self):
res = QgsSymbolLayerUtils.polylineSubstring(QPolygonF(), 1, 2) # no crash
self.assertFalse(res)
res = QgsSymbolLayerUtils.polylineSubstring(QPolygonF(), -1, 2) # no crash
self.assertFalse(res)
res = QgsSymbolLayerUtils.polylineSubstring(QPolygonF(), 1, -2) # no crash
self.assertFalse(res)
res = QgsSymbolLayerUtils.polylineSubstring(QPolygonF(), -1, -2) # no crash
self.assertFalse(res)
res = QgsSymbolLayerUtils.polylineSubstring(QPolygonF([QPointF(11, 2), QPointF(11, 12), QPointF(111, 12)]), 0,
-110)
self.assertEqual([p for p in res], [])
res = QgsSymbolLayerUtils.polylineSubstring(QPolygonF([QPointF(11, 2), QPointF(11, 12), QPointF(111, 12)]), 0,
110)
self.assertEqual([p for p in res], [QPointF(11, 2), QPointF(11, 12), QPointF(111, 12)])
res = QgsSymbolLayerUtils.polylineSubstring(QPolygonF([QPointF(11, 2), QPointF(11, 12), QPointF(111, 12)]), -1,
-1000)
self.assertFalse([p for p in res])
res = QgsSymbolLayerUtils.polylineSubstring(QPolygonF([QPointF(11, 2), QPointF(11, 12), QPointF(111, 12)]), 1,
-1000)
self.assertFalse([p for p in res])
res = QgsSymbolLayerUtils.polylineSubstring(QPolygonF([QPointF(11, 2), QPointF(11, 12), QPointF(111, 12)]), -1,
1000)
self.assertEqual([p for p in res], [QPointF(110.0, 12.0), QPointF(111.0, 12.0)])
res = QgsSymbolLayerUtils.polylineSubstring(QPolygonF([QPointF(11, 2), QPointF(11, 12), QPointF(111, 12)]),
100000, -10000)
self.assertFalse([p for p in res])
res = QgsSymbolLayerUtils.polylineSubstring(QPolygonF([QPointF(11, 2), QPointF(11, 12), QPointF(111, 12)]), 1,
-109)
self.assertEqual([p for p in res], [])
res = QgsSymbolLayerUtils.polylineSubstring(QPolygonF([QPointF(11, 2), QPointF(11, 12), QPointF(111, 12)]), 1,
109)
self.assertEqual([p for p in res], [QPointF(11.0, 3.0), QPointF(11.0, 12.0), QPointF(110.0, 12.0)])
res = QgsSymbolLayerUtils.polylineSubstring(QPolygonF([QPointF(11, 2), QPointF(11, 12), QPointF(111, 12)]),
-109, 109)
self.assertEqual([p for p in res], [QPointF(11.0, 3.0), QPointF(11.0, 12.0), QPointF(110.0, 12.0)])
res = QgsSymbolLayerUtils.polylineSubstring(QPolygonF([QPointF(11, 2), QPointF(11, 12), QPointF(111, 12)]), 1,
-1000)
self.assertEqual([p for p in res], [])
res = QgsSymbolLayerUtils.polylineSubstring(QPolygonF([QPointF(11, 2), QPointF(11, 12), QPointF(111, 12)]), 1,
10)
self.assertEqual([p for p in res], [QPointF(11, 3), QPointF(11, 12)])
res = QgsSymbolLayerUtils.polylineSubstring(QPolygonF([QPointF(11, 2), QPointF(11, 12), QPointF(111, 12)]), 1,
0)
self.assertEqual([p for p in res], [QPointF(11, 3), QPointF(11, 12), QPointF(111, 12)])
res = QgsSymbolLayerUtils.polylineSubstring(QPolygonF([QPointF(11, 2), QPointF(11, 12), QPointF(111, 12)]), 1,
-90)
self.assertEqual([p for p in res], [QPointF(11, 3), QPointF(11, 12), QPointF(21, 12)])
