def make_group_params_class(testcase):
"""Returns a subclass of param.Parameterized whose params are defined by the
'params' dict inside of the given testcase dict"""
tc_params = dict()
for name, p in testcase.get('params', {}).items():
tc_params[name] = make_param(p)
name = 'Test Params for testcase {}'.format(testcase.get('name', ''))
cls = param.parameterized_class(name, tc_params, GroupParamsBase)
return cls
def param_value_if_widget(arg):
if isinstance(arg, Widget):
return arg.param.value
from .pane.ipywidget import IPyWidget
if IPyWidget.applies(arg) and hasattr(arg, 'value'):
name = type(arg).__name__
if name in ipywidget_classes:
ipy_param = ipywidget_classes[name]
else:
ipy_param = param.parameterized_class(name, {'value': param.Parameter()})
ipywidget_classes[name] = ipy_param
ipy_inst = ipy_param(value=arg.value)
arg.observe(lambda event: ipy_inst.param.set_param(value=event['new']), 'value')
return ipy_inst.param.value
return arg
