• Goal: Implement and test the Vehicle class as shown in the Vehicle/Automobile UML Diagram.
• Relevant Examples: Person Pet Card
• Details:
  1. Implement the Vehicle class in the module vehicle.py as specified by the Vehicle/Automobile UML Diagram.
  2. The __init__ method should validate its inputs:
     1. before assigning the vin to the instance variable, convert to upper case, then remove all non letters and digits;
     2. year should not be later than the current_year. If year > current_year, set year to current_year
     3. set sales_tax_paid to False;
     4. The is_sales_tax_paid method returns "Yes" if the value of self.sales_tax_paid, "No" otherwise;
     5. The pay_sales_tax method sets self.sales_tax_paid to True.
  3. Write the traditional test script test1.py and the unit test script test2.py that test all of the instance variables and methods in the Vehicle class. Test these instance members in this suggested order:

     __init__ __str__ __repr__ vin year color owner is_sales_tax_paid pay_sales_tax 

  4. Test all possibilities of method inputs. For example, for the vin field, test cases such as A3847V, which have no non-letter or non-digit characters, and AV#S38$@47, which contains the non-letteron-digit characters #$@. AV#S38$@47 should be changed to AVS3847 before assigning it to the instance variable. For the year field, test at least one year less than current_year and at least one year that is greater than current_year Compute current_year as

     import datetime current_year = datetime.datetime.now( ).year 

  5. After you finish test1.py, convert it to the unit test file test2.py. Use the outputs from test1.py to guide you.
  6. Write a script test3.txt that loads the the data from vehicles.txt into a list of Vehicle objects, the prints the resulting list like this:

     for v in vehicles: print(v)

vin, year, color, owner R7682T,2011,red,Ted Z5211W,2015,silver,Elaine M1032F,2018,gold,susan S0987F,2017,black,Fred N3128B,2017,black,Fred N3129B,2020,white,Oscar U3813W,2013.blue,Stephanie C4921Y,2015,red,Morgan D5019H,2019,yellow,William R1235T,2017,silver,Alice W9632D,2019,green,Mary

Vehicle + vinstr + year: int + color: str + owner: str - sales_tax_paid: bool _init__(vin: str, year: int color: str, owner: str) + is_sales_tax_paid(): bool + pay_sales_tax() _str_0 : str Automobile + make: str + model : str + num_cylinders: int + horse_power: double + miles : int + accessories : str[l + __init__(vin: str, year:int, color: str, make: str, model : str, num_cylinders: int, horse_power: double, miles: int) + add_miles(the_miles : int) + add_accessory(the_item: str) _str_0:str _repr_0:str -_Il_0:bool Vehicle + vinstr + year: int + color: str + owner: str - sales_tax_paid: bool _init__(vin: str, year: int color: str, owner: str) + is_sales_tax_paid(): bool + pay_sales_tax() _str_0 : str Automobile + make: str + model : str + num_cylinders: int + horse_power: double + miles : int + accessories : str[l + __init__(vin: str, year:int, color: str, make: str, model : str, num_cylinders: int, horse_power: double, miles: int) + add_miles(the_miles : int) + add_accessory(the_item: str) _str_0:str _repr_0:str -_Il_0:bool