def test_left_of_constraint(self):
"""
Test "less than" constraint (horizontal) creation.
"""
item = Item()
p1 = Variable(1), Variable(2)
p2 = Variable(3), Variable(4)
item.constraint(left_of=(p1, p2))
self.assertEquals(1, len(item._constraints))
c = item._constraints[0]
self.assertTrue(isinstance(c, LessThanConstraint))
self.assertEquals(1, c.smaller)
self.assertEquals(3, c.bigger)
def test_above_constraint(self):
"""
Test "less than" constraint (vertical) creation.
"""
item = Item()
p1 = Variable(1), Variable(2)
p2 = Variable(3), Variable(4)
item.constraint(above=(p1, p2))
self.assertEquals(1, len(item._constraints))
c = item._constraints[0]
self.assertTrue(isinstance(c, LessThanConstraint))
self.assertEquals(2, c.smaller)
self.assertEquals(4, c.bigger)
def test_line_constraint(self):
"""
Test line creation constraint.
"""
item = Item()
pos = Variable(1), Variable(2)
line = (Variable(3), Variable(4)), (Variable(5), Variable(6))
item.constraint(line=(pos, line))
self.assertEquals(1, len(item._constraints))
c = item._constraints[0]
self.assertTrue(isinstance(c, LineConstraint))
self.assertEquals((1, 2), c._point)
self.assertEquals(((3, 4), (5, 6)), c._line)
def test_above_constraint(self):
"""
Test "less than" constraint (vertical) creation.
"""
item = Item()
p1 = Variable(1), Variable(2)
p2 = Variable(3), Variable(4)
item.constraint(above=(p1, p2))
self.assertEquals(1, len(item._constraints))
c = item._constraints[0]
self.assertTrue(isinstance(c, LessThanConstraint))
self.assertEquals(2, c.smaller)
self.assertEquals(4, c.bigger)
def test_left_of_constraint(self):
"""
Test "less than" constraint (horizontal) creation.
"""
item = Item()
p1 = Variable(1), Variable(2)
p2 = Variable(3), Variable(4)
item.constraint(left_of=(p1, p2))
self.assertEquals(1, len(item._constraints))
c = item._constraints[0]
self.assertTrue(isinstance(c, LessThanConstraint))
self.assertEquals(1, c.smaller)
self.assertEquals(3, c.bigger)
def test_line_constraint(self):
"""
Test line creation constraint.
"""
item = Item()
pos = Variable(1), Variable(2)
line = (Variable(3), Variable(4)), (Variable(5), Variable(6))
item.constraint(line=(pos, line))
self.assertEquals(1, len(item._constraints))
c = item._constraints[0]
self.assertTrue(isinstance(c, LineConstraint))
self.assertEquals((1, 2), c._point)
self.assertEquals(((3, 4), (5, 6)), c._line)
def test_vertical_constraint(self):
"""
Test vertical constraint creation.
"""
item = Item()
p1 = Variable(1), Variable(2)
p2 = Variable(3), Variable(4)
item.constraint(vertical=(p1, p2))
self.assertEquals(1, len(item._constraints))
c = item._constraints[0]
self.assertTrue(isinstance(c, EqualsConstraint))
# expect constraint on x-axis
self.assertEquals(1, c.a)
self.assertEquals(3, c.b)
def test_vertical_constraint(self):
"""
Test vertical constraint creation.
"""
item = Item()
p1 = Variable(1), Variable(2)
p2 = Variable(3), Variable(4)
item.constraint(vertical=(p1, p2))
self.assertEquals(1, len(item._constraints))
c = item._constraints[0]
self.assertTrue(isinstance(c, EqualsConstraint))
# expect constraint on x-axis
self.assertEquals(1, c.a)
self.assertEquals(3, c.b)
def test_horizontal_constraint(self):
"""
Test horizontal constraint creation.
"""
item = Item()
p1 = Variable(1), Variable(2)
p2 = Variable(3), Variable(4)
item.constraint(horizontal=(p1, p2))
self.assertEqual(1, len(item._constraints))
c = item._constraints[0]
self.assertTrue(isinstance(c, EqualsConstraint))
# expect constraint on y-axis
self.assertEqual(2, c.a)
self.assertEqual(4, c.b)