def test_multiple_choices(self):
class MyObject(BaseStyle):
def __init__(self):
self.apply = Mock()
MyObject.validated_property('prop', choices=Choices(
'a', 'b', None,
number=True, color=True
), initial=None)
obj = MyObject()
obj.prop = 10
self.assert_property(obj, 10.0)
obj.prop = 3.14159
self.assert_property(obj, 3.14159)
obj.prop = REBECCAPURPLE
self.assert_property(obj, NAMED_COLOR[REBECCAPURPLE])
obj.prop = '#112233'
self.assert_property(obj, rgb(0x11, 0x22, 0x33))
obj.prop = None
self.assert_property(obj, None)
obj.prop = 'a'
self.assert_property(obj, 'a')
obj.prop = 'none'
self.assert_property(obj, None)
obj.prop = 'b'
self.assert_property(obj, 'b')
# Check the error message
try:
obj.prop = 'invalid'
self.fail('Should raise ValueError')
except ValueError as v:
self.assertEqual(
str(v),
"Invalid value 'invalid' for property 'prop'; "
"Valid values are: a, b, none, <number>, <color>"
)
def test_string_symbol(self):
class MyObject(BaseStyle):
def __init__(self):
self.apply = Mock()
MyObject.validated_property('prop', choices=Choices(TOP, None), initial=None)
obj = MyObject()
# Set a symbolic value using the string value of the symbol
# We can't just use the string directly, though - that would
# get optimized by the compiler. So we create a string and
# transform it into the value we want.
val = 'TOP'
obj.prop = val.lower()
# Both equality and instance checking should work.
self.assertEqual(obj.prop, TOP)
self.assertIs(obj.prop, TOP)
def test_allow_integer(self):
class MyObject(BaseStyle):
def __init__(self):
self.apply = Mock()
MyObject.validated_property('prop', choices=Choices(integer=True), initial=0)
obj = MyObject()
self.assertEqual(obj.prop, 0)
obj.prop = 10
self.assert_property(obj, 10)
# This is an odd case; Python happily rounds floats to integers.
# It's more trouble than it's worth to correct this.
obj.prop = 3.14159
self.assert_property(obj, 3)
with self.assertRaises(ValueError):
obj.prop = REBECCAPURPLE
with self.assertRaises(ValueError):
obj.prop = '#112233'
with self.assertRaises(ValueError):
obj.prop = 'a'
with self.assertRaises(ValueError):
obj.prop = 'b'
with self.assertRaises(ValueError):
obj.prop = None
with self.assertRaises(ValueError):
obj.prop = 'none'
# Check the error message
try:
obj.prop = 'invalid'
self.fail('Should raise ValueError')
except ValueError as v:
self.assertEqual(
str(v),
"Invalid value 'invalid' for property 'prop'; Valid values are: <integer>"
)
def test_values(self):
class MyObject(BaseStyle):
def __init__(self):
self.apply = Mock()
MyObject.validated_property('prop', choices=Choices('a', 'b', None), initial='a')
obj = MyObject()
self.assertEqual(obj.prop, 'a')
with self.assertRaises(ValueError):
obj.prop = 10
with self.assertRaises(ValueError):
obj.prop = 3.14159
with self.assertRaises(ValueError):
obj.prop = REBECCAPURPLE
with self.assertRaises(ValueError):
obj.prop = '#112233'
obj.prop = None
self.assert_property(obj, None)
obj.prop = 'a'
self.assert_property(obj, 'a')
obj.prop = 'none'
self.assert_property(obj, None)
obj.prop = 'b'
self.assert_property(obj, 'b')
# Check the error message
try:
obj.prop = 'invalid'
self.fail('Should raise ValueError')
except ValueError as v:
self.assertEqual(
str(v),
"Invalid value 'invalid' for property 'prop'; Valid values are: a, b, none"
)
def test_allow_string(self):
class MyObject(BaseStyle):
def __init__(self):
self.apply = Mock()
MyObject.validated_property('prop', choices=Choices(string=True), initial='start')
obj = MyObject()
self.assertEqual(obj.prop, 'start')
with self.assertRaises(ValueError):
obj.prop = 10
with self.assertRaises(ValueError):
obj.prop = 3.14159
obj.prop = REBECCAPURPLE
self.assert_property(obj, 'rebeccapurple')
obj.prop = '#112233'
self.assert_property(obj, '#112233')
obj.prop = 'a'
self.assert_property(obj, 'a')
obj.prop = 'b'
self.assert_property(obj, 'b')
with self.assertRaises(ValueError):
obj.prop = None
obj.prop = 'none'
self.assert_property(obj, 'none')
# Check the error message
try:
obj.prop = 99
self.fail('Should raise ValueError')
except ValueError as v:
self.assertEqual(
str(v),
"Invalid value '99' for property 'prop'; Valid values are: <string>"
)
def test_allow_color(self):
class MyObject(BaseStyle):
def __init__(self):
self.apply = Mock()
MyObject.validated_property('prop', choices=Choices(color=True), initial='goldenrod')
obj = MyObject()
self.assertEqual(obj.prop, NAMED_COLOR[GOLDENROD])
with self.assertRaises(ValueError):
obj.prop = 10
with self.assertRaises(ValueError):
obj.prop = 3.14159
obj.prop = REBECCAPURPLE
self.assert_property(obj, NAMED_COLOR[REBECCAPURPLE])
obj.prop = '#112233'
self.assert_property(obj, rgb(0x11, 0x22, 0x33))
with self.assertRaises(ValueError):
obj.prop = 'a'
with self.assertRaises(ValueError):
obj.prop = 'b'
with self.assertRaises(ValueError):
obj.prop = None
with self.assertRaises(ValueError):
obj.prop = 'none'
# Check the error message
try:
obj.prop = 'invalid'
self.fail('Should raise ValueError')
except ValueError as v:
self.assertEqual(
str(v),
"Invalid value 'invalid' for property 'prop'; Valid values are: <color>"
)
def test_allow_number(self):
class MyObject(BaseStyle):
def __init__(self):
self.apply = Mock()
MyObject.validated_property('prop', choices=Choices(number=True), initial=0)
obj = MyObject()
self.assertEqual(obj.prop, 0)
obj.prop = 10
self.assert_property(obj, 10.0)
obj.prop = 3.14159
self.assert_property(obj, 3.14159)
with self.assertRaises(ValueError):
obj.prop = REBECCAPURPLE
with self.assertRaises(ValueError):
obj.prop = '#112233'
with self.assertRaises(ValueError):
obj.prop = 'a'
with self.assertRaises(ValueError):
obj.prop = 'b'
with self.assertRaises(ValueError):
obj.prop = None
with self.assertRaises(ValueError):
obj.prop = 'none'
# Check the error message
try:
obj.prop = 'invalid'
self.fail('Should raise ValueError')
except ValueError as v:
self.assertEqual(
str(v),
"Invalid value 'invalid' for property 'prop'; Valid values are: <number>"
)
from travertino.size import BaseIntrinsicSize from toga.fonts import Font, SYSTEM_DEFAULT_FONT_SIZE ###################################################################### # Display ###################################################################### PACK = 'pack' ###################################################################### # Declaration choices ###################################################################### DISPLAY_CHOICES = Choices(PACK, NONE) VISIBILITY_CHOICES = Choices(VISIBLE, HIDDEN, NONE) DIRECTION_CHOICES = Choices(ROW, COLUMN) ALIGNMENT_CHOICES = Choices(LEFT, RIGHT, TOP, BOTTOM, CENTER, default=True) SIZE_CHOICES = Choices(NONE, integer=True) FLEX_CHOICES = Choices(number=True) PADDING_CHOICES = Choices(integer=True) TEXT_ALIGN_CHOICES = Choices(LEFT, RIGHT, CENTER, JUSTIFY, default=True) TEXT_DIRECTION_CHOICES = Choices(RTL, LTR) COLOR_CHOICES = Choices(color=True, default=True) BACKGROUND_COLOR_CHOICES = Choices(TRANSPARENT, color=True, default=True)
from unittest import TestCase
from unittest.mock import Mock, call
from travertino.declaration import BaseStyle, Choices
VALUE1 = 'value1'
VALUE2 = 'value2'
VALUE3 = 'value3'
VALUE_CHOICES = Choices(VALUE1, VALUE2, VALUE3, None, integer=True)
DEFAULT_VALUE_CHOICES = Choices(VALUE1, VALUE2, VALUE3, integer=True, default=True)
class Style(BaseStyle):
def __init__(self, **kwargs):
self.apply = Mock()
super().__init__(**kwargs)
# Some properties with explicit initial values
Style.validated_property('explicit_const', choices=VALUE_CHOICES, initial=VALUE1)
Style.validated_property('explicit_value', choices=VALUE_CHOICES, initial=0)
Style.validated_property('explicit_none', choices=VALUE_CHOICES, initial=None)
# A property with an implicit default value.
# This usually means the default is platform specific.
Style.validated_property('implicit', choices=DEFAULT_VALUE_CHOICES)
# A set of directional properties
Style.validated_property('thing_top', choices=VALUE_CHOICES, initial=0)
Style.validated_property('thing_right', choices=VALUE_CHOICES, initial=0)