@@ -242,7 +242,13 @@ def test_make_compound_path_stops():
242242assert np .sum (compound_path .codes == Path .STOP )== 0
243243
244244
245+ def test_path_sketch_seed ():
246+ # the default value of path.sketch_seed should be 0
247+ assert rcParams ['path.sketch_seed' ]== 0
248+
249+
245250def test_xkcd_seed_update ():
251+ # when passing a seed to xkcd, the global rcParam should be updated
246252with plt .xkcd (seed = 2000 ):
247253assert rcParams ['path.sketch_seed' ]== 2000
248254
@@ -284,7 +290,9 @@ def test_artist_seed():
284290ln [0 ].set_sketch_params (3 ,120 ,40 ,2000 )
285291
286292# set_sketch_params seed should override seed set by rcParam
287- rcParams ['path.sketch_seed' ]= 0
293+ # when seed is passed in set_sketch, it should be used
294+ # else rcParam should be used as seed
295+ rcParams ['path.sketch_seed' ]= 59856
288296ln_2 = ax .plot (x ,y_2 ,color = 'green' )
289297ln_2 [0 ].set_sketch_params (3 ,120 ,40 ,19680801 )
290298
@@ -306,8 +314,10 @@ def test_xkcd_seed():
306314ln = ax .plot (x ,y_1 ,color = 'black' )
307315ln [0 ].set_sketch_params (3 ,120 ,40 )
308316
309- # xkcd should override rcParam seed.
310- rcParams ['path.sketch_seed' ]= 0
317+ # xkcd should override rcParam seed
318+ # when seed is passed in xkcd, it should be used,else rcParam should be used as seed
319+ # passing seed to xkcd should also update global rcParam
320+ rcParams ['path.sketch_seed' ]= 8448
311321with plt .xkcd (3 ,120 ,40 ,seed = 420 ):
312322ln_2 = ax .plot (x ,y_2 ,color = 'orange' )
313323
@@ -318,6 +328,8 @@ def test_path_seed():
318328y_1 = 20 * np .sin (x )
319329y_2 = 20 * np .sin (x )+ 10
320330fig ,ax = plt .subplots ()
331+
332+ # if no seed is passed in set_sketch, rcParam should be used as seed
321333rcParams ['path.sketch_seed' ]= 645
322334ln = ax .plot (x ,y_1 ,color = 'blue' )
323335ln [0 ].set_sketch_params (3 ,120 ,40 )