Do the Triangle Test Exercise from chapter $2$ of the textbook. Write down your tester actions, data, and expected results before looking at the author's solution. When you are done, compare your results with the author's solution. In the discussion thread on Canvas, discuss how you went about selecting the actions, data, and expected results. What assumptions did you make while performing this exercise? Were there any test cases you missed? Did you identify some test cases that were left out of the textbook?