Input partitioning

Question 1

Input Domain

Answer 1

Contains all possible inputs to that program

Question 2

IDM

Answer 2

Input Domain Model:
o	1. Interface-based approach
  	Develops characteristics directly from individual input parameters
  	Simplest application
  	Partially automated
o	2. Functionality-based approach
  	Develops characteristics from behavioural view of the program
  	Harder to develop
  	Better or fewer tests

Question 3

• Candidates for characteristics:

Answer 3

o Preconditions and postconditions
o Relationships among variables
o Relationship with variables with special values (zero, null, blank)

Question 4

• Identifying values for input domain

Answer 4

o Valid, invalid and special values

Question 5

• Two types of constraints

Answer 5

o A block from one characteristic cannot be combined with specific block
o A block from one characteristic can ONLY BE combined with a specific block from another characteristics

Question 6

Each Choice

Answer 6

o One Value from each block for each characteristics must be used in at least one test case

Question 7

• Pair-Wise

Answer 7

o A value from each block for each characteristics must be combined with a value from every block for each other characteristcs

Question 8

• TSC

Answer 8

o Terminal Symbol Coverage
o TR contains each terminal symbol
o Bound by the number of terminal symbols
o Equivalent to NC

Question 9

• PDC

Answer 9

o	Production Coverage
o	TR contains each production
o	PDC subsumes TSC
o	Bound by the number of productions
o	Equivalent to EC

Question 10

• Input grammar Mutation operators

Answer 10

o Terminal / Nonterminal replacement
o Terminal and Nonterminal Deletion
o Terminal and Nonterminal Duplication

Question 11

Partitioning Domain must satisfy two properties:

Answer 11

1. blocks must be pairwise disjoint (no overlap)

2. together the blocks cover the domain D (complete)

Question 12

Base choice:

Answer 12

one, and only one, base choice is selected for each characteristic

Question 13

Multiple base choice:

Answer 13

With multiple-base choice coverage, at least one of the characteristics has more than one base choice

Question 14

How the base tests are defined in the latter

Answer 14

With multiple base choice coverage the base tests are defined using each choice coverage over the base choices.

Question 15

Define mutation score

Answer 15

The percent of mutants killed.

Question 16

How is the mutation score related to coverage?

Answer 16

They are the same, or to be precise, the mutation score is a refinement of coverage