27     canvas->save();  in test_reverse_concave()
40     canvas->save();  in test_bowtie()
53     canvas->save();  in test_fake_bowtie()
69     canvas->save();  in test_intruding_vertex()
86     canvas->save();  in test_inversion_repeat_vertex()
102     canvas->save();  in test_fish()
118     canvas->save();  in test_fast_forward()
133     canvas->save();  in test_hole()
143     canvas->save();  in test_star()
153     canvas->save();  in test_twist()
167     canvas->save();  in test_stairstep()
181     canvas->save();  in test_stairstep2()
195     canvas->save();  in test_overlapping()
209     canvas->save();  in test_partners()
229     canvas->save();  in test_winding_merged_to_zero()
246     canvas->save();  in test_monotone_1()
260     canvas->save();  in test_monotone_2()
273     canvas->save();  in test_monotone_3()
286     canvas->save();  in test_monotone_4()
301     canvas->save();  in test_monotone_5()
313     canvas->save();  in test_degenerate()
327     canvas->save();  in test_coincident_edge()
345     canvas->save();  in test_bowtie_coincident_triangle()
362     canvas->save();  in test_collinear_outer_boundary_edge()
377     canvas->save();  in test_coincident_edges_1()
391     canvas->save();  in test_coincident_edges_2()
405     canvas->save();  in test_coincident_edges_3()
419     canvas->save();  in test_coincident_edges_4()