def test_bind_bound_function_to_kwarg():
widget = IntSlider(value=1)
def add1(value):
return value + 1
def divide(divisor=2, value=0):
return value / divisor
bound_function = bind(divide, value=bind(add1, widget.param.value))
assert bound_function() == 1
widget.value = 3
assert bound_function() == 2
def test_bind_constant_to_arg():
def add1(value):
return value + 1
bound_function = bind(add1, 1)
assert bound_function() == 2
with pytest.raises(TypeError):
bound_function(1)
def test_bind_two_widget_arg_with_remaining_arg():
widget = IntSlider(value=0)
def add(value, value2):
return value + value2
bound_function = bind(add, widget)
assert bound_function(1) == 1
widget.value = 1
assert bound_function(2) == 3
assert bound_function(value2=3) == 4
def test_bind_widget_to_kwarg():
widget = IntSlider(value=0)
def add1(value):
return value + 1
bound_function = bind(add1, value=widget)
assert bound_function() == 1
widget.value = 1
assert bound_function() == 2
with pytest.raises(TypeError):
bound_function(1)
def test_tabulator_function_filter(document, comm):
df = makeMixedDataFrame()
table = Tabulator(df)
model = table.get_root(document, comm)
widget = TextInput(value='foo3')
def filter_c(df, value):
return df[df.C.str.contains(value)]
table.add_filter(bind(filter_c, value=widget), 'C')
expected = {
'index':
np.array([2]),
'A':
np.array([2]),
'B':
np.array([0]),
'C':
np.array(['foo3']),
'D':
np.array(['2009-01-05T00:00:00.000000000'],
dtype='datetime64[ns]').astype(np.int64) / 10e5
}
for col, values in model.source.data.items():
np.testing.assert_array_equal(values, expected[col])
widget.value = 'foo1'
expected = {
'index':
np.array([0]),
'A':
np.array([0]),
'B':
np.array([0]),
'C':
np.array(['foo1']),
'D':
np.array(['2009-01-01T00:00:00.000000000'],
dtype='datetime64[ns]').astype(np.int64) / 10e5
}
for col, values in model.source.data.items():
np.testing.assert_array_equal(values, expected[col])
def test_bind_two_widgets_as_kwargs():
widget = IntSlider(value=0)
widget2 = IntSlider(value=1)
def add(value, value2):
return value + value2
bound_function = bind(add, value=widget, value2=widget2)
assert bound_function() == 1
widget.value = 1
assert bound_function() == 2
widget2.value = 2
assert bound_function() == 3
with pytest.raises(TypeError):
bound_function(1, 2)
assert bound_function(value2=5) == 6
