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"""Test interact and interactive."""
#-----------------------------------------------------------------------------
# Copyright (C) 2014 The IPython Development Team
#
# Distributed under the terms of the BSD License. The full license is in
# the file COPYING, distributed as part of this software.
#-----------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
from __future__ import print_function
from collections import OrderedDict
import nose.tools as nt
import IPython.testing.tools as tt
# from IPython.core.getipython import get_ipython
from IPython.html import widgets
from IPython.html.widgets import interact, interactive, Widget, interaction
from IPython.utils.py3compat import annotate
#-----------------------------------------------------------------------------
# Utility stuff
#-----------------------------------------------------------------------------
class DummyComm(object):
comm_id = 'a-b-c-d'
def send(self, *args, **kwargs):
pass
def close(self, *args, **kwargs):
pass
_widget_attrs = {}
displayed = []
def setup():
_widget_attrs['comm'] = Widget.comm
Widget.comm = DummyComm()
_widget_attrs['_ipython_display_'] = Widget._ipython_display_
def raise_not_implemented(*args, **kwargs):
raise NotImplementedError()
Widget._ipython_display_ = raise_not_implemented
def teardown():
for attr, value in _widget_attrs.items():
setattr(Widget, attr, value)
def f(**kwargs):
pass
def clear_display():
global displayed
displayed = []
def record_display(*args):
displayed.extend(args)
#-----------------------------------------------------------------------------
# Actual tests
#-----------------------------------------------------------------------------
def check_widget(w, **d):
"""Check a single widget against a dict"""
for attr, expected in d.items():
if attr == 'cls':
nt.assert_is(w.__class__, expected)
else:
value = getattr(w, attr)
nt.assert_equal(value, expected,
"%s.%s = %r != %r" % (w.__class__.__name__, attr, value, expected)
)
def check_widgets(container, **to_check):
"""Check that widgets are created as expected"""
# build a widget dictionary, so it matches
widgets = {}
for w in container.children:
widgets[w.description] = w
for key, d in to_check.items():
nt.assert_in(key, widgets)
check_widget(widgets[key], **d)
def test_single_value_string():
a = u'hello'
c = interactive(f, a=a)
w = c.children[0]
check_widget(w,
cls=widgets.TextWidget,
description='a',
value=a,
)
def test_single_value_bool():
for a in (True, False):
c = interactive(f, a=a)
w = c.children[0]
check_widget(w,
cls=widgets.CheckboxWidget,
description='a',
value=a,
)
def test_single_value_dict():
for d in [
dict(a=5),
dict(a=5, b='b', c=dict),
]:
c = interactive(f, d=d)
w = c.children[0]
check_widget(w,
cls=widgets.DropdownWidget,
description='d',
values=d,
value=next(iter(d.values())),
)
def test_single_value_float():
for a in (2.25, 1.0, -3.5):
c = interactive(f, a=a)
w = c.children[0]
check_widget(w,
cls=widgets.FloatSliderWidget,
description='a',
value=a,
min= -a if a > 0 else 3*a,
max= 3*a if a > 0 else -a,
step=0.1,
readout=True,
)
def test_single_value_int():
for a in (1, 5, -3):
c = interactive(f, a=a)
nt.assert_equal(len(c.children), 1)
w = c.children[0]
check_widget(w,
cls=widgets.IntSliderWidget,
description='a',
value=a,
min= -a if a > 0 else 3*a,
max= 3*a if a > 0 else -a,
step=1,
readout=True,
)
def test_list_tuple_2_int():
with nt.assert_raises(ValueError):
c = interactive(f, tup=(1,1))
with nt.assert_raises(ValueError):
c = interactive(f, tup=(1,-1))
for min, max in [ (0,1), (1,10), (1,2), (-5,5), (-20,-19) ]:
c = interactive(f, tup=(min, max), lis=[min, max])
nt.assert_equal(len(c.children), 2)
d = dict(
cls=widgets.IntSliderWidget,
min=min,
max=max,
step=1,
readout=True,
)
check_widgets(c, tup=d, lis=d)
def test_list_tuple_3_int():
with nt.assert_raises(ValueError):
c = interactive(f, tup=(1,2,0))
with nt.assert_raises(ValueError):
c = interactive(f, tup=(1,2,-1))
for min, max, step in [ (0,2,1), (1,10,2), (1,100,2), (-5,5,4), (-100,-20,4) ]:
c = interactive(f, tup=(min, max, step), lis=[min, max, step])
nt.assert_equal(len(c.children), 2)
d = dict(
cls=widgets.IntSliderWidget,
min=min,
max=max,
step=step,
readout=True,
)
check_widgets(c, tup=d, lis=d)
def test_list_tuple_2_float():
with nt.assert_raises(ValueError):
c = interactive(f, tup=(1.0,1.0))
with nt.assert_raises(ValueError):
c = interactive(f, tup=(0.5,-0.5))
for min, max in [ (0.5, 1.5), (1.1,10.2), (1,2.2), (-5.,5), (-20,-19.) ]:
c = interactive(f, tup=(min, max), lis=[min, max])
nt.assert_equal(len(c.children), 2)
d = dict(
cls=widgets.FloatSliderWidget,
min=min,
max=max,
step=.1,
readout=True,
)
check_widgets(c, tup=d, lis=d)
def test_list_tuple_3_float():
with nt.assert_raises(ValueError):
c = interactive(f, tup=(1,2,0.0))
with nt.assert_raises(ValueError):
c = interactive(f, tup=(-1,-2,1.))
with nt.assert_raises(ValueError):
c = interactive(f, tup=(1,2.,-1.))
for min, max, step in [ (0.,2,1), (1,10.,2), (1,100,2.), (-5.,5.,4), (-100,-20.,4.) ]:
c = interactive(f, tup=(min, max, step), lis=[min, max, step])
nt.assert_equal(len(c.children), 2)
d = dict(
cls=widgets.FloatSliderWidget,
min=min,
max=max,
step=step,
readout=True,
)
check_widgets(c, tup=d, lis=d)
def test_list_tuple_str():
values = ['hello', 'there', 'guy']
first = values[0]
dvalues = OrderedDict((v,v) for v in values)
c = interactive(f, tup=tuple(values), lis=list(values))
nt.assert_equal(len(c.children), 2)
d = dict(
cls=widgets.DropdownWidget,
value=first,
values=dvalues
)
check_widgets(c, tup=d, lis=d)
def test_list_tuple_invalid():
for bad in [
(),
(5, 'hi'),
('hi', 5),
({},),
(None,),
]:
with nt.assert_raises(ValueError):
print(bad) # because there is no custom message in assert_raises
c = interactive(f, tup=bad)
def test_defaults():
@annotate(n=10)
def f(n, f=4.5, g=1):
pass
c = interactive(f)
check_widgets(c,
n=dict(
cls=widgets.IntSliderWidget,
value=10,
),
f=dict(
cls=widgets.FloatSliderWidget,
value=4.5,
),
g=dict(
cls=widgets.IntSliderWidget,
value=1,
),
)
def test_default_values():
@annotate(n=10, f=(0, 10.), g=5, h={'a': 1, 'b': 2}, j=['hi', 'there'])
def f(n, f=4.5, g=1, h=2, j='there'):
pass
c = interactive(f)
check_widgets(c,
n=dict(
cls=widgets.IntSliderWidget,
value=10,
),
f=dict(
cls=widgets.FloatSliderWidget,
value=4.5,
),
g=dict(
cls=widgets.IntSliderWidget,
value=5,
),
h=dict(
cls=widgets.DropdownWidget,
values={'a': 1, 'b': 2},
value=2
),
j=dict(
cls=widgets.DropdownWidget,
values={'hi':'hi', 'there':'there'},
value='there'
),
)
def test_default_out_of_bounds():
@annotate(f=(0, 10.), h={'a': 1}, j=['hi', 'there'])
def f(f='hi', h=5, j='other'):
pass
c = interactive(f)
check_widgets(c,
f=dict(
cls=widgets.FloatSliderWidget,
value=5.,
),
h=dict(
cls=widgets.DropdownWidget,
values={'a': 1},
value=1,
),
j=dict(
cls=widgets.DropdownWidget,
values={'hi':'hi', 'there':'there'},
value='hi',
),
)
def test_annotations():
@annotate(n=10, f=widgets.FloatTextWidget())
def f(n, f):
pass
c = interactive(f)
check_widgets(c,
n=dict(
cls=widgets.IntSliderWidget,
value=10,
),
f=dict(
cls=widgets.FloatTextWidget,
),
)
def test_priority():
@annotate(annotate='annotate', kwarg='annotate')
def f(kwarg='default', annotate='default', default='default'):
pass
c = interactive(f, kwarg='kwarg')
check_widgets(c,
kwarg=dict(
cls=widgets.TextWidget,
value='kwarg',
),
annotate=dict(
cls=widgets.TextWidget,
value='annotate',
),
)
@nt.with_setup(clear_display)
def test_decorator_kwarg():
with tt.monkeypatch(interaction, 'display', record_display):
@interact(a=5)
def foo(a):
pass
nt.assert_equal(len(displayed), 1)
w = displayed[0].children[0]
check_widget(w,
cls=widgets.IntSliderWidget,
value=5,
)
@nt.with_setup(clear_display)
def test_decorator_no_call():
with tt.monkeypatch(interaction, 'display', record_display):
@interact
def foo(a='default'):
pass
nt.assert_equal(len(displayed), 1)
w = displayed[0].children[0]
check_widget(w,
cls=widgets.TextWidget,
value='default',
)
@nt.with_setup(clear_display)
def test_call_interact():
def foo(a='default'):
pass
with tt.monkeypatch(interaction, 'display', record_display):
ifoo = interact(foo)
nt.assert_equal(len(displayed), 1)
w = displayed[0].children[0]
check_widget(w,
cls=widgets.TextWidget,
value='default',
)
@nt.with_setup(clear_display)
def test_call_interact_kwargs():
def foo(a='default'):
pass
with tt.monkeypatch(interaction, 'display', record_display):
ifoo = interact(foo, a=10)
nt.assert_equal(len(displayed), 1)
w = displayed[0].children[0]
check_widget(w,
cls=widgets.IntSliderWidget,
value=10,
)
@nt.with_setup(clear_display)
def test_call_decorated_on_trait_change():
"""test calling @interact decorated functions"""
d = {}
with tt.monkeypatch(interaction, 'display', record_display):
@interact
def foo(a='default'):
d['a'] = a
return a
nt.assert_equal(len(displayed), 1)
w = displayed[0].children[0]
check_widget(w,
cls=widgets.TextWidget,
value='default',
)
# test calling the function directly
a = foo('hello')
nt.assert_equal(a, 'hello')
nt.assert_equal(d['a'], 'hello')
# test that setting trait values calls the function
w.value = 'called'
nt.assert_equal(d['a'], 'called')
@nt.with_setup(clear_display)
def test_call_decorated_kwargs_on_trait_change():
"""test calling @interact(foo=bar) decorated functions"""
d = {}
with tt.monkeypatch(interaction, 'display', record_display):
@interact(a='kwarg')
def foo(a='default'):
d['a'] = a
return a
nt.assert_equal(len(displayed), 1)
w = displayed[0].children[0]
check_widget(w,
cls=widgets.TextWidget,
value='kwarg',
)
# test calling the function directly
a = foo('hello')
nt.assert_equal(a, 'hello')
nt.assert_equal(d['a'], 'hello')
# test that setting trait values calls the function
w.value = 'called'
nt.assert_equal(d['a'], 'called')
def test_fixed():
c = interactive(f, a=widgets.fixed(5), b='text')
nt.assert_equal(len(c.children), 1)
w = c.children[0]
check_widget(w,
cls=widgets.TextWidget,
value='text',
description='b',
)
def test_default_description():
c = interactive(f, b='text')
w = c.children[0]
check_widget(w,
cls=widgets.TextWidget,
value='text',
description='b',
)
def test_custom_description():
c = interactive(f, b=widgets.TextWidget(value='text', description='foo'))
w = c.children[0]
check_widget(w,
cls=widgets.TextWidget,
value='text',
description='foo',
)
|
