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#!/usr/bin/python
from skdb import Part, Unit, UnitError
from string import join, split
import unittest
bryan_message = "bryan hasnt got to this yet"
class Color(Unit):
'''will eventually implement CIE 1931 XYZ color space'''
yaml_tag = "!color"
colors = {
"red": Unit("700 nm"),
"orange": Unit("620 nm"),
"yellow": Unit("580 nm"),
"green": Unit("530 nm"),
"blue": Unit("470 nm"),
"violet": Unit("420 nm"),
}
def __init__(self, color=None):
if color is None:
#FIXME: if it has no color it's white light?
raise NotImplementedError, "white light is not yet implemented"
elif isinstance(color, Color):
self.color = color.color
self.wavelength = color.wavelength
elif isinstance(color, str):
#first try treating it as a unit
try:
if color.replace(" ", "").isalnum(): #FIXME: what about "nm" (which should be interpreted as "1nm")?
color = Unit(color)
if color.compatible("nm"):
#then it is, in fact, a wavelength
self.wavelength = color
self.color = color
#return point
else: raise UnitError, "Color.__init__: supplied unit was not compatible with wavelength (nm)"
else: raise UnitError, "was not alpha numeric and was likely not a unit" #return point
except UnitError, ue:
#first check if it looks like a unit
if ue.message.count("was not compatible") == 1: raise UnitError, "Color.__init__: incompatible units on %s" % (color)
#was not a valid unit, maybe it's "green"
#try:
if color in self.colors.keys():
color = self.colors[color]
self.wavelength = color
self.color = color
#return point
else: raise ValueError, "Color.__init__: unable to parse color %s\n%s" % (color, ue) #return point
#except UnitError, ue:
elif isinstance(color, Unit):
if color.compatible("nm"):
self.wavelength = color
else: raise NotImplementedError, bryan_message
Unit.__init__(self, self.wavelength)
def _get_name(self):
#figure out the name of this color from self.wavelength
items = self.colors.items()
for item in items:
if item[1] == self.wavelength:
return item[0]
#since we don't know a name, just give it
return self.wavelength
name = property(fget=_get_name, doc="figures out the name of the color")
def __repr__(self):
return "Color(\"%s\")" % (self.name)
def __eq__(self, other):
try:
if other.wavelength == self.wavelength: return True
return False
except AttributeError, error:
#maybe it's a color
if other in self.colors:
return (Color(other)==self)
else: return Unit.__eq__(self, other)
class Apple(Part):
yaml_tag = "!apple"
def __init__(self, color=Color("green"), sliced=False):
if not isinstance(color, Color): color = Color(color)
self.color = color
self.sliced = sliced
def __eq__(self, other):
if isinstance(other, Apple):
if self.color == other.color: return True
else: return False
elif isinstance(other, Color) or isinstance(other, Unit):
if self.color == other: return True
else: return False
else: return False
def _get_name(self):
return self.color.name
name = property(fget=_get_name, doc="figures out the name of the apple")
def __repr__(self):
return "Apple(\"%s\")" % (self.name)
class Pumpkin(Part):
yaml_tag = "!pumpkin"
def __init__(self):
Part.__init__(self)
self.name = ""
def __repr__(self):
return "Pumpkin(\"%s\")" % (self.name)
class Pie(Part):
yaml_tag = "!pie"
#for parsing pie strings:
pie_map = {
"apple": Apple,
"pumpkin": Pumpkin,
}
#well if this was a screw..
build_depends = "(threading or thread rolling or thread milling or thread whirling) and (bar stock or (wire and cold heating))"
def __init__(self, ingredients):
if type(ingredients) == str:
if ingredients.count(" ") > 0:
ingredients = split(ingredients.lower(), " ")
else: ingredients = ingredients.lower()
if type(ingredients) is not type([]): ingredients = [ingredients]
self.name = ""
names = []
real_ingredients = []
ingredients = list(set(ingredients))
for ingredient in ingredients:
if hasattr(ingredient, "name"):
if ingredient.name == "": names.append(ingredient.__class__.__name__)
else: names.append(ingredient.name + " " + ingredient.__class__.__name__)
real_ingredients.append(ingredient)
elif hasattr(ingredient, "__repr__"):
if ingredient in self.pie_map.keys():
inst = self.pie_map[ingredient]
real_ingredients.append(inst())
names.append(inst.__name__)
else: names.append(ingredient)
names = list(set(names))
self.name = join(names)
self.name = self.name.lower()
self.name = self.name.lower()
self.ingredients = real_ingredients
def __eq__(self, other):
if self.ingredients == other.ingredients: return True
return False
class TestPie(unittest.TestCase):
def test_color_init(self):
#yay all of this passed on the first go :)
green = Color("green")
self.assertTrue(str(green) == "Color(\"green\")" or str(green)=="green")
self.assertTrue(green.wavelength.compatible("m"))
self.assertTrue(str(green.wavelength) == "530 nm")
self.assertTrue(green.wavelength == "530 nm")
self.assertTrue(green.wavelength == Unit("530 nm"))
self.assertTrue(green == Color("green"))
self.assertTrue(green == Color("530 nm"))
self.assertTrue(green == Color(Unit("530 nm")))
self.assertTrue(green.compatible("m"))
self.assertTrue(green.compatible("500 m")) #compatibility doesn't care about magnitude
self.assertTrue(green.compatible(Unit("m")))
self.assertFalse(green.compatible(Unit("kg")))
self.assertTrue(green == "530 nm")
self.assertTrue(green == "green")
self.assertTrue(green == Unit("530 nm"))
green = Color(Color("green"))
self.assertTrue(green == Color("530 nm"))
def test_color_repr(self):
#test a color that it doesn't have a name for (in Color.colors)
self.assertTrue(str(Color("10 km")) == "Color(\"10 km\")")
def test_additive_color(self):
pass
def test_subtractive_color(self):
pass
def test_apple_init(self):
green_apple = Apple("green")
self.assertTrue(green_apple.name == "green")
green_apple = Apple("530 nm")
self.assertTrue(green_apple.name == "green")
green_apple = Apple(Color("green"))
self.assertTrue(green_apple.name == "green")
green_apple = Apple(Color("530 nm"))
self.assertTrue(green_apple.name == "green")
green_apple = Apple(Color(Unit("530 nm")))
self.assertTrue(green_apple.name == "green")
green_apple = Apple(Unit("530 nm"))
self.assertTrue(green_apple.name == "green")
def test_apple_eq(self):
apple1 = Apple("530 nm")
apple2 = Apple(Color(Unit("530 nm")))
self.assertTrue(apple1 == apple2)
def test_pie_init(self):
apple_pie = Pie(Apple())
self.assertTrue(apple_pie.name.count("apple") == 1) #name is "green apple"
apple_pie = Pie([Apple()])
self.assertTrue(apple_pie.name.count("apple") == 1) #name is "green apple"
apple_pie = Pie([Apple(), Pumpkin()])
self.assertTrue(apple_pie.name.count("apple") == 1)
self.assertTrue(apple_pie.name.count("pumpkin") == 1)
apple_pie = Pie([Apple(Color("green")), Pumpkin()])
self.assertTrue(apple_pie.name.count("apple") == 1)
apple_pie = Pie([Apple(), Pumpkin(), Apple()])
self.assertTrue(apple_pie.name.count("apple") == 1)
self.assertTrue(apple_pie.name.count("pumpkin") == 1)
apple_pie = Pie("apple")
self.assertTrue(apple_pie.name.count("apple") == 1)
apple_pie = Pie("ApPlE")
self.assertTrue(apple_pie.name.count("apple") == 1)
apple_pie = Pie("aPpLe apple APPLE aPPLE Apple APple APPle APPLe applE appLE apPLE aPPLE")
self.assertTrue(apple_pie.name.count("apple") == 1)
self.assertTrue(len(apple_pie.ingredients) == 1)
apple_pie = Pie("apple pumpkin")
self.assertTrue(len(apple_pie.ingredients) == 2)
def test_pie_map(self):
apple_pie1 = Pie("apple")
self.assertTrue(isinstance(apple_pie1.ingredients[0], Apple))
def test_pie_eq(self):
apple_pie1 = Pie("apple")
apple_pie2 = Pie(Apple())
self.assertTrue(apple_pie1 == apple_pie2)
apple_pie1 = Pie("pumpkin")
apple_pie2 = Pie(Apple())
self.assertFalse(apple_pie1 == apple_pie2)
if __name__ == "__main__":
unittest.main()
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