def test_mapnode_json():
"""Tests that mapnodes don't generate excess jsons
"""
cwd = os.getcwd()
wd = mkdtemp()
os.chdir(wd)
from nipype import MapNode, Function, Workflow
def func1(in1):
return in1 + 1
n1 = MapNode(Function(input_names=['in1'],
output_names=['out'],
function=func1),
iterfield=['in1'],
name='n1')
n1.inputs.in1 = [1]
w1 = Workflow(name='test')
w1.base_dir = wd
w1.config = {'crashdump_dir': wd}
w1.add_nodes([n1])
w1.run()
n1.inputs.in1 = [2]
w1.run()
# should rerun
n1.inputs.in1 = [1]
eg = w1.run()
node = eg.nodes()[0]
outjson = glob(os.path.join(node.output_dir(), '_0x*.json'))
yield assert_equal, len(outjson), 1
# check that multiple json's don't trigger rerun
with open(os.path.join(node.output_dir(), 'test.json'), 'wt') as fp:
fp.write('dummy file')
w1.config['execution'].update(**{'stop_on_first_rerun': True})
error_raised = False
try:
w1.run()
except:
error_raised = True
yield assert_false, error_raised
os.chdir(cwd)
rmtree(wd)
def test_mapnode_json():
"""Tests that mapnodes don't generate excess jsons
"""
cwd = os.getcwd()
wd = mkdtemp()
os.chdir(wd)
from nipype import MapNode, Function, Workflow
def func1(in1):
return in1 + 1
n1 = MapNode(Function(input_names=['in1'],
output_names=['out'],
function=func1),
iterfield=['in1'],
name='n1')
n1.inputs.in1 = [1]
w1 = Workflow(name='test')
w1.base_dir = wd
w1.config = {'crashdump_dir': wd}
w1.add_nodes([n1])
w1.run()
n1.inputs.in1 = [2]
w1.run()
# should rerun
n1.inputs.in1 = [1]
eg = w1.run()
node = eg.nodes()[0]
outjson = glob(os.path.join(node.output_dir(), '_0x*.json'))
yield assert_equal, len(outjson), 1
# check that multiple json's don't trigger rerun
with open(os.path.join(node.output_dir(), 'test.json'), 'wt') as fp:
fp.write('dummy file')
w1.config['execution'].update(**{'stop_on_first_rerun': True})
error_raised = False
try:
w1.run()
except:
error_raised = True
yield assert_false, error_raised
os.chdir(cwd)
rmtree(wd)
