Write a function to choose specified number of colours from three different colours and generate all the combinations with repetitions.
from itertools import combinations_with_replacement 
def combinations_colors(l, n):
    return list(combinations_with_replacement(l,n))

<s>[INST]<<SYS>>Given a task and its code, generate test cases for the code.<</SYS>>Write a function to choose specified number of colours from three different colours and generate all the combinations with repetitions.
from itertools import combinations_with_replacement 
def combinations_colors(l, n):
    return list(combinations_with_replacement(l,n))
[/INST]assert combinations_colors( ["Red","Green","Blue"],1)==[('Red',), ('Green',), ('Blue',)]
assert combinations_colors( ["Red","Green","Blue"],2)==[('Red', 'Red'), ('Red', 'Green'), ('Red', 'Blue'), ('Green', 'Green'), ('Green', 'Blue'), ('Blue', 'Blue')]
assert combinations_colors( ["Red","Green","Blue"],3)==[('Red', 'Red', 'Red'), ('Red', 'Red', 'Green'), ('Red', 'Red', 'Blue'), ('Red', 'Green', 'Green'), ('Red', 'Green', 'Blue'), ('Red', 'Blue', 'Blue'), ('Green', 'Green', 'Green'), ('Green', 'Green', 'Blue'), ('Green', 'Blue', 'Blue'), ('Blue', 'Blue', 'Blue')]</s>