Dog Day Care Center Monthly Fee Calculator

Table of Contents

• Requirements
• Design
• Test Scenarios
• Implementation
• Successes and Failures
• Source Code
  

Requirements

• Input
  • dog weight (pounds)
  • days per month to stay at center
    
• Output
  • the daily rate, and the total monthly fee
    
• Constraints
  
  • program format per CS225 style requirements
• User interface
  • console based
    
• Extra credit
  • none

Design

• Input:
• prompt user to input int for dog weight in pounds
• prompt user to input int for days per month to stay
• Output:
• print daily rate to console
• print monthly total to console
• Components:
  • User interface function
  • DailyRate function
• Departures from requirements:
  • none
    

Test scenarios

• one or both inputs empty;
  should reprompt user for inputs (doesn't yet)
• inputs are of non integer type;
  error should be displayed (doesn't yet)
• weight is zero;
  should display an error message
• days are zero;
  should display an error message
• test boundary conditions;
• weight: 9 days: 10;
  should display: rate: 12 total: 120
• weight: 10 days: 10;
  should display: rate: 16  total: 160
• weight: 35 days: 10;
  should display: rate: 19  total: 190
• weight: 9 days: 11;
  should display: rate: 10  total: 110
• weight: 10 days: 11;
  should display: rate: 13  total: 143
• weight: 35 days: 11;
  should display: rate: 17 total: 187

Implementation

• Implementation Design
• main()
• call DogUI()
• get status from DogUI()
• return status
• DogUI()
• get user input for weight
• get user input for days per month
• send user input to DailyRate()
• if result is negative
• print error message
• else
• print the daily rate
• print the total monthly fee (daily rate * days)
• return status
• DailyRate()
• nested ifs to get proper rate
• Implementation test scenarios
  • main()
    
    • ensure that proper status is received from DogUI()
      
  • DogUI()
  • ensure that user input is stored correctly
  • ensure that DailyRate() is called
  • ensure that result from DailyRate() and monthly fee are displayed
  • ensure error codes are set appropriately
  • ensure returns status
  • DailyRate()
  • ensure parameters from calling function are correct
  • ensure return value matches expected value
• Code:
  
• dog.cpp
• dog.h

Successes and failures

• Everything worked, but more error handling for inputs should be done