Vehicle-Anti-Theft-Face-Rec.../venv/Lib/site-packages/ipywidgets/widgets/tests/test_widget_templates.py

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2020-11-12 16:05:57 +00:00
"Testing widget layout templates"
from unittest import TestCase
try:
from unittest import mock
except ImportError:
import mock
import pytest
import traitlets
import ipywidgets as widgets
from ipywidgets.widgets.widget_templates import LayoutProperties
class TestTwoByTwoLayout(TestCase):
"""test layout templates"""
def test_merge_cells(self): #pylint: disable=no-self-use
"""test merging cells with missing widgets"""
button1 = widgets.Button()
button2 = widgets.Button()
button3 = widgets.Button()
button4 = widgets.Button()
box = widgets.TwoByTwoLayout(top_left=button1,
top_right=button2,
bottom_left=button3,
bottom_right=button4)
assert box.layout.grid_template_areas == ('"top-left top-right"\n' +
'"bottom-left bottom-right"')
assert box.top_left.layout.grid_area == 'top-left'
assert box.top_right.layout.grid_area == 'top-right'
assert box.bottom_left.layout.grid_area == 'bottom-left'
assert box.bottom_right.layout.grid_area == 'bottom-right'
assert len(box.get_state()['children']) == 4
box = widgets.TwoByTwoLayout(top_left=button1,
top_right=button2,
bottom_left=None,
bottom_right=button4)
assert box.layout.grid_template_areas == ('"top-left top-right"\n' +
'"top-left bottom-right"')
assert box.top_left.layout.grid_area == 'top-left'
assert box.top_right.layout.grid_area == 'top-right'
assert box.bottom_left is None
assert box.bottom_right.layout.grid_area == 'bottom-right'
assert len(box.get_state()['children']) == 3
box = widgets.TwoByTwoLayout(top_left=None,
top_right=button2,
bottom_left=button3,
bottom_right=button4)
assert box.layout.grid_template_areas == ('"bottom-left top-right"\n' +
'"bottom-left bottom-right"')
assert box.top_left is None
assert box.top_right.layout.grid_area == 'top-right'
assert box.bottom_left.layout.grid_area == 'bottom-left'
assert box.bottom_right.layout.grid_area == 'bottom-right'
assert len(box.get_state()['children']) == 3
box = widgets.TwoByTwoLayout(top_left=None,
top_right=button2,
bottom_left=None,
bottom_right=button4)
assert box.layout.grid_template_areas == ('"top-right top-right"\n' +
'"bottom-right bottom-right"')
assert box.top_left is None
assert box.top_right.layout.grid_area == 'top-right'
assert box.bottom_left is None
assert box.bottom_right.layout.grid_area == 'bottom-right'
assert len(box.get_state()['children']) == 2
box = widgets.TwoByTwoLayout(top_left=button1,
top_right=None,
bottom_left=button3,
bottom_right=button4)
assert box.layout.grid_template_areas == ('"top-left bottom-right"\n' +
'"bottom-left bottom-right"')
assert box.top_left.layout.grid_area == 'top-left'
assert box.top_right is None
assert box.bottom_left.layout.grid_area == 'bottom-left'
assert box.bottom_right.layout.grid_area == 'bottom-right'
assert len(box.get_state()['children']) == 3
box = widgets.TwoByTwoLayout(top_left=button1,
top_right=None,
bottom_left=None,
bottom_right=None)
assert box.layout.grid_template_areas == ('"top-left top-left"\n' +
'"top-left top-left"')
assert box.top_left is button1
assert box.top_left.layout.grid_area == 'top-left'
assert box.top_right is None
assert box.bottom_left is None
assert box.bottom_right is None
assert len(box.get_state()['children']) == 1
box = widgets.TwoByTwoLayout(top_left=None,
top_right=button1,
bottom_left=None,
bottom_right=None)
assert box.layout.grid_template_areas == ('"top-right top-right"\n' +
'"top-right top-right"')
assert box.top_right is button1
assert box.top_right.layout.grid_area == 'top-right'
assert box.top_left is None
assert box.bottom_left is None
assert box.bottom_right is None
assert len(box.get_state()['children']) == 1
box = widgets.TwoByTwoLayout(top_left=None,
top_right=None,
bottom_left=None,
bottom_right=None)
assert box.layout.grid_template_areas is None
assert box.top_left is None
assert box.top_right is None
assert box.bottom_left is None
assert box.bottom_right is None
assert not box.get_state()['children']
box = widgets.TwoByTwoLayout(top_left=None,
top_right=button1,
bottom_left=None,
bottom_right=None,
merge=False)
assert box.layout.grid_template_areas == ('"top-left top-right"\n' +
'"bottom-left bottom-right"')
assert box.top_right is button1
assert box.top_right.layout.grid_area == 'top-right'
assert box.top_left is None
assert box.bottom_left is None
assert box.bottom_right is None
assert len(box.get_state()['children']) == 1
def test_keep_layout_options(self): #pylint: disable=no-self-use
"""test whether layout options are passed down to GridBox"""
layout = widgets.Layout(align_items="center")
button1 = widgets.Button()
button2 = widgets.Button()
button3 = widgets.Button()
button4 = widgets.Button()
box = widgets.TwoByTwoLayout(top_left=button1, top_right=button2,
bottom_left=button3, bottom_right=button4,
layout=layout)
assert box.layout.align_items == 'center'
def test_pass_layout_options(self): #pylint: disable=no-self-use
"""test whether the extra layout options of the template class are
passed down to Layout object"""
button1 = widgets.Button()
button2 = widgets.Button()
button3 = widgets.Button()
button4 = widgets.Button()
box = widgets.TwoByTwoLayout(top_left=button1, top_right=button2,
bottom_left=button3, bottom_right=button4,
grid_gap="10px", justify_content="center",
align_items="center")
assert box.layout.grid_gap == "10px"
assert box.layout.justify_content == "center"
assert box.layout.align_items == "center"
# we still should be able to pass them through layout
layout = widgets.Layout(grid_gap="10px", justify_content="center",
align_items="center")
box = widgets.TwoByTwoLayout(top_left=button1, top_right=button2,
bottom_left=button3, bottom_right=button4,
layout=layout
)
assert box.layout.grid_gap == "10px"
assert box.layout.justify_content == "center"
assert box.layout.align_items == "center"
# values passed directly in the constructor should overwite layout options
layout = widgets.Layout(grid_gap="10px", justify_content="center",
align_items="center")
box = widgets.TwoByTwoLayout(top_left=button1, top_right=button2,
bottom_left=button3, bottom_right=button4,
layout=layout, grid_gap="30px"
)
assert box.layout.grid_gap == "30px"
assert box.layout.justify_content == "center"
assert box.layout.align_items == "center"
@mock.patch("ipywidgets.Layout.send_state")
def test_update_dynamically(self, send_state): #pylint: disable=no-self-use
"""test whether it's possible to add widget outside __init__"""
button1 = widgets.Button()
button2 = widgets.Button()
button3 = widgets.Button()
button4 = widgets.Button()
box = widgets.TwoByTwoLayout(top_left=button1, top_right=button3,
bottom_left=None, bottom_right=button4)
from ipykernel.kernelbase import Kernel
state = box.get_state()
assert len(state['children']) == 3
assert box.layout.grid_template_areas == ('"top-left top-right"\n' +
'"top-left bottom-right"')
box.layout.comm.kernel = mock.MagicMock(spec=Kernel) #for mocking purposes
send_state.reset_mock()
box.bottom_left = button2
state = box.get_state()
assert len(state['children']) == 4
assert box.layout.grid_template_areas == ('"top-left top-right"\n' +
'"bottom-left bottom-right"')
# check whether frontend was informed
send_state.assert_called_once_with(key="grid_template_areas")
box = widgets.TwoByTwoLayout(top_left=button1, top_right=button3,
bottom_left=None, bottom_right=button4)
assert box.layout.grid_template_areas == ('"top-left top-right"\n' +
'"top-left bottom-right"')
box.layout.comm.kernel = mock.MagicMock(spec=Kernel) #for mocking purposes
send_state.reset_mock()
box.merge = False
assert box.layout.grid_template_areas == ('"top-left top-right"\n' +
'"bottom-left bottom-right"')
send_state.assert_called_once_with(key="grid_template_areas")
class TestAppLayout(TestCase):
"""test layout templates"""
def test_create_with_defaults(self):
"test creating with default values"
footer = widgets.Button()
header = widgets.Button()
center = widgets.Button()
left_sidebar = widgets.Button()
right_sidebar = widgets.Button()
box = widgets.AppLayout(
footer=footer,
header=header,
center=center,
left_sidebar=left_sidebar,
right_sidebar=right_sidebar
)
assert box.layout.grid_template_areas == ('"header header header"\n' +
'"left-sidebar center right-sidebar"\n' +
'"footer footer footer"')
assert box.footer.layout.grid_area == 'footer'
assert box.header.layout.grid_area == 'header'
assert box.center.layout.grid_area == 'center'
assert box.left_sidebar.layout.grid_area == 'left-sidebar'
assert box.right_sidebar.layout.grid_area == 'right-sidebar'
assert len(box.get_state()['children']) == 5
# empty layout should produce no effects
box = widgets.AppLayout()
assert box.layout.grid_template_areas is None
assert box.layout.grid_template_columns is None
assert box.layout.grid_template_rows is None
assert len(box.get_state()['children']) == 0
def test_merge_empty_cells(self):
"test if cells are correctly merged"
footer = widgets.Button()
header = widgets.Button()
center = widgets.Button()
left_sidebar = widgets.Button()
right_sidebar = widgets.Button()
# merge all if only one widget
box = widgets.AppLayout(
center=center
)
assert box.layout.grid_template_areas == ('"center center center"\n' +
'"center center center"\n' +
'"center center center"')
assert box.center.layout.grid_area == 'center'
assert len(box.get_state()['children']) == 1
box = widgets.AppLayout(
left_sidebar=left_sidebar
)
assert box.layout.grid_template_areas == ('"left-sidebar left-sidebar left-sidebar"\n' +
'"left-sidebar left-sidebar left-sidebar"\n' +
'"left-sidebar left-sidebar left-sidebar"')
assert box.left_sidebar.layout.grid_area == 'left-sidebar'
assert len(box.get_state()['children']) == 1
# merge left and right sidebars with center
box = widgets.AppLayout(
header=header,
footer=footer,
left_sidebar=left_sidebar,
center=center
)
assert box.layout.grid_template_areas == ('"header header header"\n' +
'"left-sidebar center center"\n' +
'"footer footer footer"')
assert box.footer.layout.grid_area == 'footer'
assert box.header.layout.grid_area == 'header'
assert box.center.layout.grid_area == 'center'
assert box.left_sidebar.layout.grid_area == 'left-sidebar'
assert len(box.get_state()['children']) == 4
box = widgets.AppLayout(
header=header,
footer=footer,
right_sidebar=right_sidebar,
center=center
)
assert box.layout.grid_template_areas == ('"header header header"\n' +
'"center center right-sidebar"\n' +
'"footer footer footer"')
assert box.footer.layout.grid_area == 'footer'
assert box.header.layout.grid_area == 'header'
assert box.center.layout.grid_area == 'center'
assert box.right_sidebar.layout.grid_area == 'right-sidebar'
assert len(box.get_state()['children']) == 4
box = widgets.AppLayout(
header=header,
footer=footer,
center=center
)
assert box.layout.grid_template_areas == ('"header header header"\n' +
'"center center center"\n' +
'"footer footer footer"')
assert box.footer.layout.grid_area == 'footer'
assert box.header.layout.grid_area == 'header'
assert box.center.layout.grid_area == 'center'
assert len(box.get_state()['children']) == 3
# if only center missing, remove it from view
box = widgets.AppLayout(
header=header,
footer=footer,
center=None,
left_sidebar=left_sidebar,
right_sidebar=right_sidebar
)
assert box.layout.grid_template_areas == ('"header header"\n' +
'"left-sidebar right-sidebar"\n' +
'"footer footer"')
assert box.footer.layout.grid_area == 'footer'
assert box.header.layout.grid_area == 'header'
assert box.left_sidebar.layout.grid_area == 'left-sidebar'
assert box.right_sidebar.layout.grid_area == 'right-sidebar'
assert box.center is None
assert len(box.get_state()['children']) == 4
# center and one sidebar missing -> 3 row arrangement
box = widgets.AppLayout(
header=header,
footer=footer,
center=None,
left_sidebar=None,
right_sidebar=right_sidebar
)
assert box.layout.grid_template_areas == ('"header header"\n' +
'"right-sidebar right-sidebar"\n' +
'"footer footer"')
assert box.footer.layout.grid_area == 'footer'
assert box.header.layout.grid_area == 'header'
assert box.left_sidebar is None
assert box.right_sidebar.layout.grid_area == 'right-sidebar'
assert box.center is None
assert len(box.get_state()['children']) == 3
# remove middle row is both sidebars and center missing
box = widgets.AppLayout(
header=header,
footer=footer,
center=None,
left_sidebar=None,
right_sidebar=None
)
assert box.layout.grid_template_areas == ('"header"\n' +
'"footer"')
assert box.footer.layout.grid_area == 'footer'
assert box.header.layout.grid_area == 'header'
assert box.center is None
assert box.left_sidebar is None
assert box.right_sidebar is None
assert len(box.get_state()['children']) == 2
# do not merge if merge=False
box = widgets.AppLayout(
header=header,
footer=footer,
center=center,
merge=False
)
assert box.layout.grid_template_areas == ('"header header header"\n' +
'"left-sidebar center right-sidebar"\n' +
'"footer footer footer"')
assert box.footer.layout.grid_area == 'footer'
assert box.header.layout.grid_area == 'header'
assert box.center.layout.grid_area == 'center'
assert box.left_sidebar is None
assert box.right_sidebar is None
assert len(box.get_state()['children']) == 3
# merge header and footer simply removes it from view
box = widgets.AppLayout(
footer=footer,
center=center,
left_sidebar=left_sidebar,
right_sidebar=right_sidebar
)
assert box.layout.grid_template_areas == ('"left-sidebar center right-sidebar"\n' +
'"footer footer footer"')
assert box.center.layout.grid_area == 'center'
assert box.left_sidebar.layout.grid_area == 'left-sidebar'
assert box.right_sidebar.layout.grid_area == 'right-sidebar'
assert box.footer.layout.grid_area == 'footer'
assert box.header is None
assert len(box.get_state()['children']) == 4
box = widgets.AppLayout(
header=header,
center=center,
left_sidebar=left_sidebar,
right_sidebar=right_sidebar
)
assert box.layout.grid_template_areas == ('"header header header"\n' +
'"left-sidebar center right-sidebar"')
assert box.center.layout.grid_area == 'center'
assert box.left_sidebar.layout.grid_area == 'left-sidebar'
assert box.right_sidebar.layout.grid_area == 'right-sidebar'
assert box.header.layout.grid_area == 'header'
assert box.footer is None
assert len(box.get_state()['children']) == 4
box = widgets.AppLayout(
center=center,
left_sidebar=left_sidebar,
right_sidebar=right_sidebar
)
assert box.layout.grid_template_areas == '"left-sidebar center right-sidebar"'
assert box.center.layout.grid_area == 'center'
assert box.left_sidebar.layout.grid_area == 'left-sidebar'
assert box.right_sidebar.layout.grid_area == 'right-sidebar'
assert box.footer is None
assert box.header is None
assert len(box.get_state()['children']) == 3
# merge all if only one widget
box = widgets.AppLayout(
center=center
)
assert box.layout.grid_template_areas == ('"center center center"\n' +
'"center center center"\n' +
'"center center center"')
assert box.center.layout.grid_area == 'center'
assert len(box.get_state()['children']) == 1
def test_size_to_css(self):
box = widgets.AppLayout()
assert box._size_to_css("100px") == '100px'
assert box._size_to_css("1fr") == '1fr'
assert box._size_to_css("2.5fr") == '2.5fr'
assert box._size_to_css('2.5') == '2.5fr'
assert box._size_to_css('25%') == '25%'
with pytest.raises(TypeError):
box._size_to_css('this is not correct size')
def test_set_pane_widths_heights(self):
footer = widgets.Button()
header = widgets.Button()
center = widgets.Button()
left_sidebar = widgets.Button()
right_sidebar = widgets.Button()
box = widgets.AppLayout(
header=header,
footer=footer,
left_sidebar=left_sidebar,
right_sidebar=left_sidebar,
center=center
)
with pytest.raises(traitlets.TraitError):
box.pane_widths = ['1fx', '1fx', '1fx', '1fx']
with pytest.raises(traitlets.TraitError):
box.pane_widths = ['1fx', '1fx']
with pytest.raises(traitlets.TraitError):
box.pane_heights = ['1fx', '1fx', '1fx', '1fx']
with pytest.raises(traitlets.TraitError):
box.pane_heights = ['1fx', '1fx']
assert box.layout.grid_template_rows == "1fr 3fr 1fr"
assert box.layout.grid_template_columns == "1fr 2fr 1fr"
box.pane_heights = ['3fr', '100px', 20]
assert box.layout.grid_template_rows == "3fr 100px 20fr"
assert box.layout.grid_template_columns == "1fr 2fr 1fr"
box.pane_widths = [3, 3, 1]
assert box.layout.grid_template_rows == "3fr 100px 20fr"
assert box.layout.grid_template_columns == "3fr 3fr 1fr"
class TestGridspecLayout(TestCase):
"test GridspecLayout"
def test_init(self):
with pytest.raises(traitlets.TraitError):
box = widgets.GridspecLayout()
with pytest.raises(traitlets.TraitError):
box = widgets.GridspecLayout(n_rows=-1, n_columns=1)
box = widgets.GridspecLayout(n_rows=5, n_columns=3)
assert box.n_rows == 5
assert box.n_columns == 3
assert len(box._grid_template_areas) == 5
assert len(box._grid_template_areas[0]) == 3
box = widgets.GridspecLayout(1, 2)
assert box.n_rows == 1
assert box.n_columns == 2
with pytest.raises(traitlets.TraitError):
box = widgets.GridspecLayout(0, 0)
def test_setitem_index(self):
box = widgets.GridspecLayout(2, 3)
button1 = widgets.Button()
button2 = widgets.Button()
button3 = widgets.Button()
button4 = widgets.Button()
box[0, 0] = button1
button1_label = button1.layout.grid_area
assert button1 in box.children
assert box.layout.grid_template_areas == '''"{} . ."\n". . ."'''.format(button1_label)
box[-1, -1] = button2
button2_label = button2.layout.grid_area
assert button1_label != button2_label
assert button2 in box.children
assert box.layout.grid_template_areas == '''"{} . ."\n". . {}"'''.format(button1_label,
button2_label)
box[1, 0] = button3
button3_label = button3.layout.grid_area
assert button1_label != button3_label
assert button2_label != button3_label
assert button3 in box.children
assert box.layout.grid_template_areas == '''"{b1} . ."\n"{b3} . {b2}"'''.format(b1=button1_label,
b2=button2_label,
b3=button3_label)
#replace widget
box[1, 0] = button4
button4_label = button4.layout.grid_area
assert button1_label != button4_label
assert button2_label != button4_label
assert button4 in box.children
assert button3 not in box.children
assert box.layout.grid_template_areas == '''"{b1} . ."\n"{b4} . {b2}"'''.format(b1=button1_label,
b2=button2_label,
b4=button4_label)
def test_setitem_slices(self):
box = widgets.GridspecLayout(2, 3)
button1 = widgets.Button()
box[:2, 0] = button1
assert len(box.children) == 1
assert button1 in box.children
button1_label = button1.layout.grid_area
assert box.layout.grid_template_areas == '''"{b1} . ."\n"{b1} . ."'''.format(b1=button1_label)
box = widgets.GridspecLayout(2, 3)
button1 = widgets.Button()
button2 = widgets.Button()
box[:2, 1:] = button1
assert len(box.children) == 1
assert button1 in box.children
button1_label = button1.layout.grid_area
assert box.layout.grid_template_areas == '''". {b1} {b1}"\n". {b1} {b1}"'''.format(b1=button1_label)
# replace button
box[:2, 1:] = button2
assert len(box.children) == 1
assert button2 in box.children
button2_label = button2.layout.grid_area
assert box.layout.grid_template_areas == '''". {b1} {b1}"\n". {b1} {b1}"'''.format(b1=button2_label)
def test_getitem_index(self):
"test retrieving widget"
box = widgets.GridspecLayout(2, 3)
button1 = widgets.Button()
box[0, 0] = button1
assert box[0, 0] is button1
def test_getitem_slices(self):
"test retrieving widgets with slices"
box = widgets.GridspecLayout(2, 3)
button1 = widgets.Button()
box[:2, 0] = button1
assert box[:2, 0] is button1
box = widgets.GridspecLayout(2, 3)
button1 = widgets.Button()
button2 = widgets.Button()
box[0, 0] = button1
box[1, 0] = button2
assert box[0, 0] is button1
assert box[1, 0] is button2
with pytest.raises(TypeError, match="The slice spans"):
button = box[:2, 0]
class TestLayoutProperties(TestCase):
"""test mixin with layout properties"""
class DummyTemplate(widgets.GridBox, LayoutProperties):
location = traitlets.Instance(widgets.Widget, allow_none=True)
def test_layout_updated_on_trait_change(self):
"test whether respective layout traits are updated when traits change"
template = self.DummyTemplate(width="100%")
assert template.width == '100%'
assert template.layout.width == '100%'
template.width = 'auto'
assert template.width == 'auto'
assert template.layout.width == 'auto'
def test_align_items_extra_options(self):
template = self.DummyTemplate(align_items='top')
assert template.align_items == 'top'
assert template.layout.align_items == 'flex-start'
template.align_items = 'bottom'
assert template.align_items == 'bottom'
assert template.layout.align_items == 'flex-end'
def test_validate_properties(self):
prop_obj = self.DummyTemplate()
for prop in LayoutProperties.align_items.values:
prop_obj.align_items = prop
assert prop_obj.align_items == prop
with pytest.raises(traitlets.TraitError):
prop_obj.align_items = 'any default position'