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First solution in Clear category for Multicolored Lamp by juestr
class Lamp:
colors = 'Green Red Blue Yellow'.split()
_n = len(colors)
def __init__(self):
self.color = self._n - 1
def light(self):
self.color = (self.color + 1) % self._n
return self.colors[self.color]
if __name__ == '__main__':
#These "asserts" using only for self-checking and not necessary for auto-testing
lamp_1 = Lamp()
lamp_2 = Lamp()
lamp_1.light() #Green
lamp_1.light() #Red
lamp_2.light() #Green
assert lamp_1.light() == "Blue"
assert lamp_1.light() == "Yellow"
assert lamp_1.light() == "Green"
assert lamp_2.light() == "Red"
assert lamp_2.light() == "Blue"
print("Coding complete? Let's try tests!")
April 11, 2019
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