Logic Based Criteria

Question 1

Why isn’t branch coverage enough for logical conditions?

Answer 1

Some combinations of predicates will not be tested using branch coverage

Question 2

Why should we not use path coverage for logical conditions?

Answer 2

Scalability
No paths if short-circuiting is not present
Languages may not have short-circuiting at all

Question 3

What is the basis for logic based coverage?

Answer 3

We want to reason about the logical expressions and how inputs affect their outcomes

Question 4

________ ______ requires each predicate to be true in one test and be false in one test

Answer 4

Predicate coverage

Question 5

________ ______ requires each clause to be true in one test and be false in one test

Answer 5

Clause Coverage

Question 6

Why is predicate and clause coverage bad testing?

Answer 6

Both can have a minimum of 2 test cases (since clauses and predicates can only have 2 values). There is no requirement to test different combinations

Question 7

What does Combinatorial/Multiple Condition Coverage testing require?

Answer 7

It requires each possible combination of clauses to be tested

Question 8

How do we test the impact of a clause?

Answer 8

Changing the clause value and seeing if the predicate changes

Question 9

What are the 4 requirements for Modified Condition/Decision Coverage?

Answer 9

1. Each entry and exit is used
2. Each decision/branch takes every possible outcome
3. Each clause takes every possible outcome
4. Each clause independently impacts outcome

Question 10

When generating a test suite with MC/DC, we should try to add tests based on ________ tests

Answer 10

existing

Question 11

What is the recommended use for MC/DC. It’s not generating tests.

Answer 11

Evaluate test suites generated by other means