def test_typename(self):
self.assertEqual(NumberValue(name='foo').typename, 'rational number')
self.assertEqual(
NumberValue(name='foo', min=5).typename, 'rational number (>= 5)')
self.assertEqual(
NumberValue(name='foo', max=5).typename, 'rational number (<= 5)')
self.assertEqual(
NumberValue(name='foo', min=-5, max=5).typename,
'rational number (-5 - 5)')
def test_min_larger_than_max(self):
with self.assertRaises(ValueError) as cm:
NumberValue(name='foo', min=100, max=99)
self.assertIn('minimum must be smaller than or equal to maximum',
str(cm.exception))
val = NumberValue(name='foo')
val.min = 50
with self.assertRaises(ValueError) as cm:
val.max = 49
self.assertIn('minimum must be smaller than or equal to maximum',
str(cm.exception))
def test_valid_values(self):
val = NumberValue(name='foo', default=10)
self.assertEqual(val.get(), 10)
for newval, exp in ((0, 0), (0.0, 0), ('0', 0), ('0.0', 0),
(0.123456789, 0.123456789), (-1e3, -1000),
('+=7', -993), ('-= 3', -996)):
val.set(newval)
self.assertEqual(val.get(), exp)
def test_prefix(self):
val = NumberValue('test', default=1024, prefix='binary')
self.assertEqual(val.get(), 1024)
self.assertEqual(val.string(), '1Ki')
self.assertEqual(val.prefix, 'binary')
val.prefix = 'metric'
self.assertEqual(val.get(), 1024)
self.assertEqual(val.string(), '1.02k')
self.assertEqual(val.prefix, 'metric')
val.set(1000)
self.assertEqual(val.get(), 1000)
self.assertEqual(val.string(), '1k')
self.assertEqual(val.prefix, 'metric')
val.prefix = 'binary'
self.assertEqual(val.get(), 1000)
self.assertEqual(val.string(), '1000')
self.assertEqual(val.prefix, 'binary')
def test_unit(self):
val = NumberValue('test', default=15, unit='m')
self.assertEqual(val.get(), 15)
self.assertEqual(val.unit, 'm')
self.assertEqual(val.string(with_unit=True), '15m')
self.assertEqual(val.string(with_unit=False), '15')
val.unit = 'x'
self.assertEqual(val.unit, 'x')
self.assertEqual(val.string(with_unit=True), '15x')
self.assertEqual(val.string(with_unit=False), '15')
val.unit = None
self.assertEqual(val.unit, None)
self.assertEqual(val.string(with_unit=True), '15')
self.assertEqual(val.string(with_unit=False), '15')
def test_max(self):
val = NumberValue(name='foo', max=100)
with self.assertRaises(ValueError) as cm:
val.set(100.001)
self.assertIn('Too large', str(cm.exception))
self.assertIn('maximum is 100', str(cm.exception))
val = NumberValue(name='foo', default=100)
val.max = 50
self.assertEqual(val.max, 50)
self.assertEqual(val.get(), 50)
self.assertEqual(val.get_default(), 50)
with self.assertRaises(ValueError) as cm:
val.set(51)
self.assertIn('Too large', str(cm.exception))
self.assertIn('maximum is 50', str(cm.exception))
def test_min(self):
val = NumberValue(name='foo', min=10)
with self.assertRaises(ValueError) as cm:
val.set(9)
self.assertIn('Too small', str(cm.exception))
self.assertIn('minimum is 10', str(cm.exception))
val = NumberValue(name='foo', default=100)
val.min = 150
self.assertEqual(val.min, 150)
self.assertEqual(val.get(), 150)
self.assertEqual(val.get_default(), 150)
with self.assertRaises(ValueError) as cm:
val.set(149)
self.assertIn('Too small', str(cm.exception))
self.assertIn('minimum is 150', str(cm.exception))
def test_string_from_specific_value(self):
val = NumberValue(name='foo', default=42.3)
self.assertEqual(val.string(value=-0.12), '-0.12')
self.assertEqual(val.string(default=True), '42.3')
def test___repr__(self):
val = NumberValue(name='foo', default=42e3, unit='m', prefix='metric')
self.assertEqual(repr(val), 'foo=42km')
val.set(1024)
val.prefix = 'binary'
self.assertEqual(repr(val), 'foo=1Kim')
def test_string_from_default_value(self):
val = NumberValue(name='foo', default=42.0)
val.set(-5)
self.assertEqual(val.string(), '-5')
self.assertEqual(val.string(default=True), '42')
def test_string_from_current_value(self):
val = NumberValue(name='foo', default=42)
self.assertEqual(val.string(), '42')
def test_adjusting_current_value_without_default_value(self):
val = NumberValue(name='foo')
val.set('+=23')
self.assertEqual(val.get(), 23)
def test_adjusting_current_value(self):
val = NumberValue(name='foo', default=10)
val.set('+=23')
self.assertEqual(val.get(), 33)
val.set('-=3')
self.assertEqual(val.get(), 30)
val.set('+=-10')
self.assertEqual(val.get(), 20)
def test_invalid_values(self):
val = NumberValue(name='foo')
for v in (True, False, [1, 2, 3]):
with self.assertRaises(ValueError) as cm:
val.set(v)
self.assertIn('Not a %s' % val.typename, str(cm.exception))