def test_embed_select_str_link_two_steps(document, comm):
select = Select(options=['A', 'B', 'C'])
string1 = Str()
select.link(string1, value='object')
string2 = Str()
string1.link(string2, object='object')
panel = Row(select, string1, string2)
with config.set(embed=True):
model = panel.get_root(document, comm)
embed_state(panel, model, document)
_, state = document.roots
assert set(state.state) == {'A', 'B', 'C'}
for k, v in state.state.items():
content = json.loads(v['content'])
assert 'events' in content
events = content['events']
assert len(events) == 2
event = events[0]
assert event['kind'] == 'ModelChanged'
assert event['attr'] == 'text'
assert event['model'] == model.children[1].ref
assert event['new'] == '<pre>%s</pre>' % k
event = events[1]
assert event['kind'] == 'ModelChanged'
assert event['attr'] == 'text'
assert event['model'] == model.children[2].ref
assert event['new'] == '<pre>%s</pre>' % k
def test_save_embed_json(tmpdir):
checkbox = Checkbox()
string = Str()
checkbox.link(string, value='object')
panel = Row(checkbox, string)
filename = os.path.join(str(tmpdir), 'test.html')
panel.save(filename, embed=True, embed_json=True,
save_path=str(tmpdir))
assert os.path.isfile(filename)
paths = glob.glob(os.path.join(str(tmpdir), '*'))
paths.remove(filename)
assert len(paths) == 1
json_files = sorted(glob.glob(os.path.join(paths[0], '*.json')))
assert len(json_files) == 2
for jf, v in zip(json_files, ('False', 'True')):
with open(jf) as f:
state = json.load(f)
assert 'content' in state
assert 'events' in state['content']
events = json.loads(state['content'])['events']
assert len(events) == 1
event = events[0]
assert event['kind'] == 'ModelChanged'
assert event['attr'] == 'text'
assert event['new'] == '<pre>%s</pre>' % v
def test_embed_float_slider_explicit_values(document, comm):
select = FloatSlider()
string = Str()
def link(target, event):
target.object = event.new
select.link(string, callbacks={'value': link})
panel = Row(select, string)
with config.set(embed=True):
model = panel.get_root(document, comm)
embed_state(panel, model, document, states={select: [0.1, 0.7, 1]})
_, state = document.roots
assert set(state.state) == {0, 1, 2}
states = {0: 0.1, 1: 0.7, 2: 1}
for (k, v) in state.state.items():
content = json.loads(v['content'])
assert 'events' in content
events = content['events']
assert len(events) == 1
event = events[0]
assert event['kind'] == 'ModelChanged'
assert event['attr'] == 'text'
assert event['model'] == model.children[1].ref
assert event['new'] == '<pre>%s</pre>' % states[k]
def test_ipywidget():
pane = Str('A')
widget = ipywidget(pane)
assert widget._view_count == 0
assert len(pane._models) == 1
init_id = list(pane._models)[0]
widget._view_count = 1
assert widget._view_count == 1
assert init_id in pane._models
widget._view_count = 0
assert len(pane._models) == 0
widget._view_count = 1
assert len(pane._models) == 1
prev_id = list(pane._models)[0]
widget.notify_change({'new': 1, 'old': 1, 'name': '_view_count',
'type': 'change', 'model': widget})
assert prev_id in pane._models
assert len(pane._models) == 1
widget._view_count = 2
assert prev_id in pane._models
assert len(pane._models) == 1
def test_embed_slider_str_link(document, comm):
slider = FloatSlider(start=0, end=10)
string = Str()
def link(target, event):
target.object = event.new
slider.link(string, callbacks={'value': link})
panel = Row(slider, string)
with config.set(embed=True):
model = panel.get_root(document, comm)
embed_state(panel, model, document)
_, state = document.roots
assert set(state.state) == {0, 1, 2}
values = [0, 5, 10]
for k, v in state.state.items():
content = json.loads(v['content'])
assert 'events' in content
events = content['events']
assert len(events) == 1
event = events[0]
assert event['kind'] == 'ModelChanged'
assert event['attr'] == 'text'
assert event['model'] == model.children[1].ref
assert event['new'] == '<pre>%.1f</pre>' % values[k]
def test_save_embed(tmpdir):
checkbox = Checkbox()
string = Str()
checkbox.link(string, value='object')
panel = Row(checkbox, string)
filename = os.path.join(str(tmpdir), 'test.html')
panel.save(filename, embed=True)
assert os.path.isfile(filename)
def test_save_embed_bytesio():
checkbox = Checkbox()
string = Str()
checkbox.link(string, value='object')
panel = Row(checkbox, string)
stringio = StringIO()
panel.save(stringio, embed=True)
stringio.seek(0)
utf = stringio.read()
assert "<pre>False<" in utf
assert "<pre>True<" in utf
def test_string_pane(document, comm):
pane = Str("<h1>Test</h1>")
# Create pane
row = pane._get_root(document, comm=comm)
assert isinstance(row, BkRow)
assert len(row.children) == 1
model = row.children[0]
assert row.ref['id'] in pane._callbacks
assert pane._models[row.ref['id']] is model
div = get_div(model)
assert div.text == "<pre><h1>Test</h1></pre>"
# Replace Pane.object
pane.object = "<h2>Test</h2>"
model = row.children[0]
assert div is get_div(model)
assert row.ref['id'] in pane._callbacks
assert pane._models[row.ref['id']] is model
assert div.text == "<pre><h2>Test</h2></pre>"
# Cleanup
pane._cleanup(row)
assert pane._callbacks == {}
assert pane._models == {}
def test_embed_select_str_explicit_values_not_found(document, comm):
select = Select(options=['A', 'B', 'C'])
string = Str()
def link(target, event):
target.object = event.new
select.link(string, callbacks={'value': link})
panel = Row(select, string)
with config.set(embed=True):
model = panel.get_root(document, comm)
with pytest.raises(ValueError):
embed_state(panel, model, document, states={select: ['A', 'D']})
def test_embed_float_slider_explicit_values_out_of_bounds(document, comm):
select = FloatSlider()
string = Str()
def link(target, event):
target.object = event.new
select.link(string, callbacks={'value': link})
panel = Row(select, string)
with config.set(embed=True):
model = panel.get_root(document, comm)
with pytest.raises(ValueError):
embed_state(panel, model, document, states={select: [0.1, 0.7, 2]})
def test_save_embed_bytesio():
checkbox = Checkbox()
string = Str()
def link(target, event):
target.object = event.new
checkbox.link(string, callbacks={'value': link})
panel = Row(checkbox, string)
stringio = StringIO()
panel.save(stringio, embed=True)
stringio.seek(0)
utf = stringio.read()
assert "&lt;pre&gt;False&lt;/pre&gt;" in utf
assert "&lt;pre&gt;True&lt;/pre&gt;" in utf
def test_embed_discrete(document, comm):
select = Select(options=['A', 'B', 'C'])
string = Str()
select.link(string, value='object')
panel = Row(select, string)
with config.set(embed=True):
model = panel.get_root(document, comm)
embed_state(panel, model, document)
_, state = document.roots
assert set(state.state) == {'A', 'B', 'C'}
for k, v in state.state.items():
content = json.loads(v['content'])
assert 'events' in content
events = content['events']
assert len(events) == 1
event = events[0]
assert event['kind'] == 'ModelChanged'
assert event['attr'] == 'text'
assert event['model'] == model.children[1].ref
assert event['new'] == '<pre>%s</pre>' % k
def test_embed_checkbox(document, comm):
checkbox = Checkbox()
string = Str()
checkbox.link(string, value='object')
panel = Row(checkbox, string)
with config.set(embed=True):
model = panel.get_root(document, comm)
embed_state(panel, model, document)
_, state = document.roots
assert set(state.state) == {'false', 'true'}
for k, v in state.state.items():
content = json.loads(v['content'])
assert 'events' in content
events = content['events']
assert len(events) == 1
event = events[0]
assert event['kind'] == 'ModelChanged'
assert event['attr'] == 'text'
assert event['model'] == model.children[1].ref
assert event['new'] == '<pre>%s</pre>' % k.title()
def test_embed_continuous(document, comm):
select = FloatSlider(start=0, end=10)
string = Str()
select.link(string, value='object')
panel = Row(select, string)
with config.set(embed=True):
model = panel.get_root(document, comm)
embed_state(panel, model, document)
_, state = document.roots
assert set(state.state) == {0, 1, 2}
values = [0, 5, 10]
for k, v in state.state.items():
content = json.loads(v['content'])
assert 'events' in content
events = content['events']
assert len(events) == 1
event = events[0]
assert event['kind'] == 'ModelChanged'
assert event['attr'] == 'text'
assert event['model'] == model.children[1].ref
assert event['new'] == '<pre>%.1f</pre>' % values[k]
def test_string_pane(document, comm):
pane = Str("<h1>Test</h1>")
# Create pane
model = pane.get_root(document, comm=comm)
assert pane._models[model.ref['id']][0] is model
assert model.text == "<pre><h1>Test</h1></pre>"
# Replace Pane.object
pane.object = "<h2>Test</h2>"
assert pane._models[model.ref['id']][0] is model
assert model.text == "<pre><h2>Test</h2></pre>"
# Cleanup
pane._cleanup(model)
assert pane._models == {}
def test_embed_slider_str_jslink(document, comm):
slider = FloatSlider(start=0, end=10)
string = Str()
slider.link(string, value='object')
panel = Row(slider, string)
with config.set(embed=True):
model = panel.get_root(document, comm)
embed_state(panel, model, document)
assert len(document.roots) == 1
assert model is document.roots[0]
ref = model.ref['id']
cbs = list(model.select({'type': CustomJS}))
assert len(cbs) == 2
cb1, cb2 = cbs
cb1, cb2 = (cb1,
cb2) if slider._models[ref][0] is cb1.args['source'] else (cb2,
cb1)
assert cb1.code == """
var value = source['value'];
value = value;
value = JSON.stringify(value).replace(/,/g, ", ").replace(/:/g, ": ");
try {
var property = target.properties['text'];
if (property !== undefined) { property.validate(value); }
} catch(err) {
console.log('WARNING: Could not set text on target, raised error: ' + err);
return;
}
try {
target['text'] = value;
} catch(err) {
console.log(err)
}
"""
assert cb2.code == """
def test_embed_select_str_link(document, comm):
select = Select(options=['A', 'B', 'C'])
string = Str()
def link(target, event):
target.object = event.new
select.link(string, callbacks={'value': link})
panel = Row(select, string)
with config.set(embed=True):
model = panel.get_root(document, comm)
embed_state(panel, model, document)
_, state = document.roots
assert set(state.state) == {'A', 'B', 'C'}
for k, v in state.state.items():
content = json.loads(v['content'])
assert 'events' in content
events = content['events']
assert len(events) == 1
event = events[0]
assert event['kind'] == 'ModelChanged'
assert event['attr'] == 'text'
assert event['model'] == model.children[1].ref
assert event['new'] == '<pre>%s</pre>' % k
def test_viewable_ipywidget():
pane = Str('A')
with config.set(comms='ipywidgets'):
data, metadata = pane._repr_mimebundle_()
assert 'application/vnd.jupyter.widget-view+json' in data