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Second solution in Clear category for Voice TV Control by Chocolater
class VoiceCommand:
def __init__(self, channels):
self.channels = channels
self.channel = 0
def first_channel(self):
self.channel = 0
return self.channels[0]
def last_channel(self):
self.channel = len(self.channels) - 1
return self.channels[-1]
def turn_channel(self, number):
self.channel = number - 1
return self.channels[self.channel]
def next_channel(self):
if self.channel != len(self.channels) - 1:
self.channel += 1
else:
self.channel = 0
return self.channels[self.channel]
def previous_channel(self):
if self.channel:
self.channel -= 1
else:
self.channel = len(self.channels) - 1
return self.channels[self.channel]
def current_channel(self):
return self.channels[self.channel]
def is_exist(self, sample):
if sample in (self.channels + list(range(len(self.channels)))):
return 'Yes'
return 'No'
if __name__ == '__main__':
#These "asserts" using only for self-checking and not necessary for auto-testing
CHANNELS = ["BBC", "Discovery", "TV1000"]
controller = VoiceCommand(CHANNELS)
assert controller.first_channel() == "BBC"
assert controller.last_channel() == "TV1000"
assert controller.turn_channel(1) == "BBC"
assert controller.next_channel() == "Discovery"
assert controller.previous_channel() == "BBC"
assert controller.current_channel() == "BBC"
assert controller.is_exist(4) == "No"
assert controller.is_exist("TV1000") == "Yes"
print("Coding complete? Let's try tests!")
July 29, 2018
