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from django.forms import SelectMultiple
from .base import WidgetTest
class SelectMultipleTest(WidgetTest):
widget = SelectMultiple
numeric_choices = (('0', '0'), ('1', '1'), ('2', '2'), ('3', '3'), ('0', 'extra'))
def test_format_value(self):
widget = self.widget(choices=self.numeric_choices)
self.assertEqual(widget.format_value(None), [])
self.assertEqual(widget.format_value(''), [''])
self.assertEqual(widget.format_value([3, 0, 1]), ['3', '0', '1'])
def test_render_selected(self):
self.check_html(self.widget(choices=self.beatles), 'beatles', ['J'], html=(
"""<select multiple name="beatles">
<option value="J" selected>John</option>
<option value="P">Paul</option>
<option value="G">George</option>
<option value="R">Ringo</option>
</select>"""
))
def test_render_multiple_selected(self):
self.check_html(self.widget(choices=self.beatles), 'beatles', ['J', 'P'], html=(
"""<select multiple name="beatles">
<option value="J" selected>John</option>
<option value="P" selected>Paul</option>
<option value="G">George</option>
<option value="R">Ringo</option>
</select>"""
))
def test_render_none(self):
"""
If the value is None, none of the options are selected, even if the
choices have an empty option.
"""
self.check_html(self.widget(choices=(('', 'Unknown'),) + self.beatles), 'beatles', None, html=(
"""<select multiple name="beatles">
<option value="">Unknown</option>
<option value="J">John</option>
<option value="P">Paul</option>
<option value="G">George</option>
<option value="R">Ringo</option>
</select>"""
))
def test_render_value_label(self):
"""
If the value corresponds to a label (but not to an option value), none
of the options are selected.
"""
self.check_html(self.widget(choices=self.beatles), 'beatles', ['John'], html=(
"""<select multiple name="beatles">
<option value="J">John</option>
<option value="P">Paul</option>
<option value="G">George</option>
<option value="R">Ringo</option>
</select>"""
))
def test_multiple_options_same_value(self):
"""
Multiple options with the same value can be selected (#8103).
"""
self.check_html(self.widget(choices=self.numeric_choices), 'choices', ['0'], html=(
"""<select multiple name="choices">
<option value="0" selected>0</option>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="0" selected>extra</option>
</select>"""
))
def test_multiple_values_invalid(self):
"""
If multiple values are given, but some of them are not valid, the valid
ones are selected.
"""
self.check_html(self.widget(choices=self.beatles), 'beatles', ['J', 'G', 'foo'], html=(
"""<select multiple name="beatles">
<option value="J" selected>John</option>
<option value="P">Paul</option>
<option value="G" selected>George</option>
<option value="R">Ringo</option>
</select>"""
))
def test_compare_string(self):
choices = [('1', '1'), ('2', '2'), ('3', '3')]
self.check_html(self.widget(choices=choices), 'nums', [2], html=(
"""<select multiple name="nums">
<option value="1">1</option>
<option value="2" selected>2</option>
<option value="3">3</option>
</select>"""
))
self.check_html(self.widget(choices=choices), 'nums', ['2'], html=(
"""<select multiple name="nums">
<option value="1">1</option>
<option value="2" selected>2</option>
<option value="3">3</option>
</select>"""
))
self.check_html(self.widget(choices=choices), 'nums', [2], html=(
"""<select multiple name="nums">
<option value="1">1</option>
<option value="2" selected>2</option>
<option value="3">3</option>
</select>"""
))
def test_optgroup_select_multiple(self):
widget = SelectMultiple(choices=(
('outer1', 'Outer 1'),
('Group "1"', (('inner1', 'Inner 1'), ('inner2', 'Inner 2'))),
))
self.check_html(widget, 'nestchoice', ['outer1', 'inner2'], html=(
"""<select multiple name="nestchoice">
<option value="outer1" selected>Outer 1</option>
<optgroup label="Group "1"">
<option value="inner1">Inner 1</option>
<option value="inner2" selected>Inner 2</option>
</optgroup>
</select>"""
))
def test_value_omitted_from_data(self):
widget = self.widget(choices=self.beatles)
self.assertIs(widget.value_omitted_from_data({}, {}, 'field'), False)
self.assertIs(widget.value_omitted_from_data({'field': 'value'}, {}, 'field'), False)
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