Packaging and Testing

e-Portfolio Activities

Table of Contents

• Activity 1
• Activity 2

Activity 1

• What is the cyclomatic complexity of the following piece of code?

public static string IntroducePerson(string name, int age)
{
    var response = $"Hi! My name is {name} and I'm {age} years old.";

    if (age >= 18)
        response += " I'm an adult.";

    if (name.Length > 7)
        response += " I have a long name.";

    return response;
}

The cyclomatic complexity of the above code is 3. We can get to this value using the cyclomatic complexity formula: M = E - N + 2P, where M is the cyclomatic complexity, E is the number of edges, N is the number of nodes, and P is the number of connected components. (Schults, 2021). In the above code, we have 7 edges (Potential Outputs), 6 nodes (if Statements, return & concatenation), and 1 connected component(Function). M = 7 - 6 + (2 * 1) = 3

References:
Schultz, C. (2021) Cyclomatic Complexity Defined Clearly, With Examples. LinearB.

Activity 2

• Extend the following program to test accuracy of operations using the assert statement.

# Python String Operations
str1 = 'Hello'
str2 = 'World!'

# using +
assert str1 + str2 == 'HelloWorld!', "Error: Addition operation is incorrect."

# using *
assert str1 * 3 == 'HelloHelloHello', "Error: Multiplication operation is incorrect."
# uncomment the line below to see a failed test
# assert str1 * 3 == 'HelloHello Hello', "Error: Multiplication operation is incorrect."

print('All tests passed successfully.')