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Testing

TestingWhen you complete the testing section of your project you need to make sure your testing table is specific and attempts to test all possible inputs.

Below are a series of programs and completed testing tables so you can see how you should complete the testing tables.

Example 1 - Email Address ValidationThis program gets the user to enter an email address and it will decide if it is valid or not. The email address must follow the following format:

start with a string of alphanumeric charactersfollowed by the @ symbolanother string of alphanumeric charactersfollowed by a “.”then a string of alphanumeric characters

Program code:

import re password = input("Enter an email address: ") while len(password)==0: password = input("Enter an email address: ") pattern = "^[A-Za-z0-9]+\@[A-Za-z0-9]+\.[A-Za-z0-9]+$" passwordMatch = re.match(pattern, password) if passwordMatch: print("VALID") else: print("INVALID")

Testing Table:

Testing Evidence:

Test 1

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Test 2

Test 3

Test 4

Test 5

Example 2 - Grade CalculatorThis program gets the user to enter a test score between 0 and 100. It will then say the grade and how many marks they are off the next grade. The grade boundaries are:

A = 70+B = 60+C = 50+D = 40+U = <40

Program code:

valid=False while valid==False: score = input("Enter a score between 0 and 100: ") if score.isdigit()==False: valid=False else: valid=True if int(score)<0 or int(score)>100: valid=False score=int(score) if score >=70: marksoff = 100-score print("That test score is a grade A, you were "+str(marksoff)+" marks off full marks") elif score>=60: marksoff = 70-score print("That test score is a grade B, you were "+str(marksoff)+" marks off an A") elif score>=50: marksoff = 60-score print("That test score is a grade C, you were "+str(marksoff)+" marks off a B") elif score>=40: marksoff = 50-score print("That test score is a grade D, you were "+str(marksoff)+" marks of a C")else: marksoff=40-score print("That test score is a grade U, you were "+str(marksoff)+" marks off a D")

Testing Table:

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Testing Evidence:

Test 1

Test 2

Test 3

Test 4

Test 5

Testing Table:

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Testing Evidence:

Test 6

Test 7

Test 8

Test 9

Test 10

Example 3 - Speeding CarsThis program reads a file that contains a list of car registration plates and the speed they were captured at going through a speed camera. The user will enter the speed limitand it will display which of the cars in the file were speeding. Part of the file cars.csv is shown below:

Program code:

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speed = input("Enter the speed limit (mph) ") file = open("cars.csv","r") speeding = False for line in file: cars = line.split(",") if float(cars[1])>float(speed): speeding = True print(cars[0] + " " + cars[1]) file.close() if speeding == False: print("There were no cars that broke the speed limit of " + speed + "mph")

Testing Table:

Testing Evidence:

Test 1

Test 2

Test 3

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Example 4 - Order ProgramThis program reads a file that contains a list of products and their prices sold in a shop. The user enters a GTIN code (barcode) and how many the customer wants. It thencalculates the total cost of each item and a grand total and creates a receipt.

CSV File

Program code:

anotherItem=True receipt="" totalcost=0 while anotherItem is True: gtin = input("Enter a GTIN8 Number: ") quantity = input("Enter a quantity: ") file=open("Products1.csv","r") itemFound=False for line in file: product=line.split(",") if product[0]==gtin: price=float(product[2]) itemFound=True itemTotal=round(price*int(quantity),2) receipt=receipt+"\n"+product[0]+" "+product[1]+" "+quantity+" "\ +"£{:.2f}".format(price)+" "+"£{:.2f}".format(itemTotal) print("Current Order") print(receipt) totalcost=totalcost+itemTotal file.close() if itemFound==False: receipt=receipt+"\n"+gtin+" product not found" print(receipt) continueOrder=input("Order another item (y/n)?") if continueOrder=="y": anotherItem=True else: anotherItem=False print("Order complete") receipt=receipt+"\n"+"Total cost of order £{:.2f}".format(totalcost) print(receipt)

Testing Table:

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Testing Evidence:

Test 1

Test 2

Test 3

Test 4

Example 5 - Reorder ProgramThis program reads a file that contains a list of products and how many there are in stock. If the number in stock is low, it works out how many need to be reordered and thencreates a new file of the products that need to be reordered as well as how many.

Program code:

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print("List of products that are below the reorder level and need to be reordered:") itemsforreorder=0 file=open("catalogue - T3.csv","r") for line in file: product=line.split(",") if int(product[3])<int(product[4]): reorderamount=int(product[5])-int(product[3]) print(product[0]+" "+product[1]+" "+str(reorderamount)) reorderfile=open("reorderlist.csv","a") reorderfile.write(product[0]+","+product[1]+","+str(reorderamount)+"\n") reorderfile.close() itemsforreorder=itemsforreorder+1file.close() if itemsforreorder>0: print("Reorder file created") else: print("No products need reordering")

Testing Table:

Testing Evidence:

Test1

Test2

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Test1

Test3

Example 6 - Updating Staff InformationThis program updates the number of years a member of staff has been working at the school. When the program runs the user enters their email address, when it finds theperson it asks them to enter their number of years teaching. It will then update the file if the person exists in the file.

Program code:

import os, sys updateanother = "Y" while updateanother == "Y": email = input("Enter the email address you are looking for:") file = open("staff.csv","r") alreadyexists=False for line in file: staff = line.split(",") writefile = open("staffupdated.csv","a") if staff[2] == email: alreadyexists=True print("Current Details:\nStaff name: " + staff[0] + " " + staff[1] + "\nEmail Address: " + staff[2] + "\nYears Teaching: " + staff[3]) yearsteaching =input("Enter their new number of years teaching: " ) writefile.write(staff[0] + "," + staff[1] + "," + staff[2] + "," + yearsteaching+"\n") else: writefile.write(staff[0] + "," + staff[1] + "," + staff[2] + "," + staff[3]) writefile.close() file.close() os.remove("staff.csv") os.rename("staffupdated.csv","staff.csv") if alreadyexists==False: print("That staff member's email cannot be found in the file, no changes made") else: print("Details updated") updateanother = input("Would you like to update another staff member? Y/N ")

Testing Table:

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Testing Evidence:

Test1

Test2