Week 9: Currency Conversion

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week_6_currency_conversion_test_procedure.doc

Week 6: Currency Conversion Test Procedure

Main Module

Declare selection as integer  Declare currencyType as Integer  Declare internationalValue as Real

Declare US Value as Real

Declare currency as string

Declare continue as Boolean

Set continue to true

Call Display_Menu  module End Main Module

 

Display_Menu Module

While continue=true

Display "Welcome to the international currency conversion program :-"  Display "Below are the following conversion choices"  Display "International Currency Types:"

Display "1: Canadian Dollars"  Display "2: Mexican Pesos"  Display "3: English Pounds"  Display "4: Japanese Yen"  Display "5: French Francs"  Display "6: Quit"  Display "Choose from 1 to 6:"  Input currencyType

While currencyType < 1 AND currencyType > 6

Display”Make a valid selection between 1 to 6”

Input currencyType

End While

If currencyType > 1 AND currencyType <5

Call Get_Int_Value Module (currencyType)

End If

else

If currencyType = 6 Then

Display”Exiting the program.Goodbye!”

Set continue to false

End If

End While

End Display_Menu Module

Get_Int_Value Module(currencyType)

Define internationalValue as Real

Declare option = currencyType

Display”Enter the Amount to convert”

Input internationalValue

While internationalValue <0

Display”Enter a positive amount”

Input internationalValue

End While

Call Convert_Currency Module (internationalValue,option)

End Get_Int_Value Module

Convert_Currency Module(internationalValue,option)

Define Rate as Real

Define US Value as Real

Define currency as string

Declare Amount = internationalValue

Declare CurrencyType = option

If CurrencyType = 1 then

rate = 0.93

Currency = Canadian dollars

End if

Else If CurrencyType = 2 then

rate = 0.077

Currency = Mexican Pesos

End if

Else If CurrencyType = 3 then

rate = 1.71

Currency = English Pounds

End if

Else If CurrencyType = 4 then

rate = 0.0099

Currency =Japanese yen

End if

Else If CurrencyType = 5 then

rate = 1.11

Currency =French francs

End if

Else

rate = 1.0

US Value = Amount * rate

Call Display_Results Module 

End Convert_Currency Module

Display_Results Module

Display "The value of ", internationalValue, " ", currency, " is ", US Value, " US dollars"

End Display_Results Module

Display_Menu Test Cases

Test Input for Currency Type

Expected Output and comments

Test Case 1

A number between 1 to 5

No error. Appropriate modules are called. User is asked for currency type and amount. Currency is converted to USD and displayed.

Test Case 2

A number greater than 6 or less than 6

Error message” Make a valid selection between 1 to 6”

Test Case 3

A number equal to 6

No error. Message “Exiting the program. Goodbye!” .The program ends.

Get Convert_Currency Module Test Cases

Test input

Expected Output and comments

Test Case 1

currencyType = 1

internationalValue = 50

The value of 50 Canadian dollars is 34.06 US dollars.

Test Case 2

currencyType = 2

internationalValue = 50

The value of 50 Mexican pesos is 1.052 US dollars.

Test Case 3

currencyType = 3

internationalValue = 50

The value of 50 English Pounds is 82.165 US dollars.

Test Case 4

currencyType = 4

internationalValue = 50

The value of 50 Japanese yen is 0.477 US dollars.

Test Case 5

currencyType = 5

internationalValue = 50

The value of 50 French francs is 7.993 US dollars.

Test Case 6

For Any currency type with international value negative

Error message ”Enter a positive amount”

Message appears till positive value is entered

Currency Conversion Integration test

Test input

Expected Output and comments

Test Case 1

A very large number

e/g

currencyType = 1

internationalValue = 5000000000000000

The value of 5000000000000000 Canadian dollars is 3405994550408719.346 US dollars.

Test Case 2

Boundary condition

currencyType = 2

internationalValue = 0

The value of 0 Mexican pesos is 0 US dollars.

Test Case 3

Nonsense value say a string like xyz either for currencyType or international value which are numbers

Error by the processor stating strings can’t be assigned to integers or real numbers

Display_Menu Test Cases

Test Input for Currency Type

Expected Output and comments

Test Case 1

A number between 1 to 5

No error. Appropriate modules are called. User is asked for currency type and amount. Currency is converted to USD and displayed.

Test Case 2

A number greater than 6 or less than 6

Error message” Make a valid selection between 1 to 6”

Test Case 3

A number equal to 6

No error. Message “Exiting the program. Goodbye!” .The program ends.

Get_Int_value module Test Cases

Test input

Expected Output and comments

Test Case 1

Enter a negative value for amount say -6.

Error message ”Enter a positive amount”

Test Case 2

Enter an integer value say 1000 with CurrencyType 1 i.e Canadian dollars

Get values converted in US dollar.

The converted Us dollar value would be 681.199

Test Case 3

Enter an float/real value say 120.50 with CurrencyType 3 i.e English pounds

Get values converted in US dollar.

The converted Us dollar value would be 198.01765

Test Case 4

Enter a value 0.Doesn’t matter which Currency type.

Output value is 0 always

Get Convert_Currency Module Test Cases

Test input

Expected Output and comments.Value assigned to US value variable

Test Case 1

currencyType = 1

internationalValue = 50

US Value is assigned value 34.06.

Test Case 2

currencyType = 2

internationalValue = 50

US Value is assigned value 1.052

Test Case 3

currencyType = 3

internationalValue = 50

US value is assigned value 82.165

Test Case 4

currencyType = 4

internationalValue = 50

US value is assigned value 0.477

Test Case 5

currencyType = 5

internationalValue = 50

US value is assigned value 7.993

Test Case 6

For Any currency type with international value negative

Variable is not assigned any value as Convert_Currency module is not implemented

Get Convert_Currency Module Test Cases

Test input

Expected Output and comments

Test Case 1

currencyType = 1

internationalValue = 50

The value of 50 Canadian dollars is 34.06 US dollars.

Test Case 2

currencyType = 2

internationalValue = 50

The value of 50 Mexican pesos is 1.052 US dollars.

Test Case 3

currencyType = 3

internationalValue = 50

The value of 50 English Pounds is 82.165 US dollars.

Test Case 4

currencyType = 4

internationalValue = 50

The value of 50 Japanese yen is 0.477 US dollars.

Test Case 5

currencyType = 5

internationalValue = 50

The value of 50 French francs is 7.993 US dollars.

Test Case 6

For Any currency type with international value negative

Error message ”Enter a positive amount”

Message appears till positive value is entered

Currency Conversion Integration test

Test input

Expected Output and comments

Test Case 1

A very large number

e/g

currencyType = 1

internationalValue = 5000000000000000

The value of 5000000000000000 Canadian dollars is 3405994550408719.346 US dollars.

Test Case 2

Boundary condition

currencyType = 2

internationalValue = 0

The value of 0 Mexican pesos is 0 US dollars.

Test Case 3

Nonsense value say a string like xyz either for currencyType or international value which are numbers

Error by the processor stating strings can’t be assigned to integers or real numbers