Unit2-04: Test Cases & Modules

Learning Outcome

At the end of this lesson, you will be able to:

• A1.3 use assignment statements correctly with both arithmetic and string expressions in computer programs;

• B2.4 represent the structure and components of a program using industry-standard programming tools (e.g., structure chart, flow chart, UML [Unified Modeling Language], data flow diagram, pseudocode); 

• B4.1 describe the phases (i.e., problem definition, analysis, design, writing code, testing, implementation, maintenance), milestones (e.g., date of completion of program specification), and products (e.g., specification, flow chart, program, documentation, bug reports) of a software development life cycle; 

• use the 6 step process to solve any problem

• use built-in modules in Python and C++

• create test cases

Quiz Questions

With a pencil and paper, answer the following questions:

1. What does each of the following code output?
   a) print("{:.3f}".format(9.812734))

b) print(10-2**3)

c) print("The remainder of 10/3 is {}.".format(10%3))

d) print ("8 - 4 / 2 = {}". format(8-4/2))

2. Explain the difference between a constant and a variable.

3. Are there constants in Python? Explain.

4. Declare a constant called "MAX_LIVES" as an integer with a value of 3 in Python and C++. Make sure to put a comment above the line.

5. Declare a variable called "username" as a string  with a value of "Guest" in Python and C++. Make sure to put a comment above the line.

Review

• basic math operators

• how to print calculations in Python and C++

• make sure to put comments in header AND body of code

Activity

• in groups of 2, do the following on the board for today's daily assignment:

  • Top-Down Design

  • Flowchart

  • Pseudocode

  • Test Cases

Daily Assignment

• complete the Daily Assignment section in Hãpara Workspace for this day

  • if Hãpara is not working, make a copy of this document

  • move it to your IMH-ICS folder for this course