Testing

Question 1

is a critical process within any
software development and maintenance life
cycle model

Answer 1

Testing

Question 2

Testing implementations is often referred to as

Answer 2

software testing, or simply testing.

Question 3

Only _____ can guarantee full
coverage.

Answer 3

exhaustive testing

Question 4

is impractical since it may
take years to complete even for testing small size
programs.

Answer 4

Exhaustive testing

Question 5

difficulty in software testing

Answer 5

the inability
to quantify the errors existing in software, and
hence predict how many errors are left
undiscovered.

Question 6

• Test the software by executing it and applying
  test inputs
• Observe the output and make a judgment to
  take a verdict

Answer 6

Dynamic testing

Question 7

• Check code without executing it
• Automatic static testing: Code as an input to a
  static analysis tool
• Non-automatic static testing: review,
  walkthrough, inspection

Answer 7

Static testing

Question 8

is a set of organized test cases

Answer 8

test suite

Question 9

includes a test suite

Answer 9

Test plan

Question 10

are obtained using known testing
techniques and strategies

Answer 10

Test cases

Question 11

module or unit testing

Answer 11

White-box:

Question 12

module testing and system testing

Answer 12

Black-box:

Question 13

a bit of both (partial knowledge of
internal structure)

Answer 13

Grey-box:

Question 14

Source Code + Functional Specifications

Answer 14

White box based test generation

Question 15

Functional Specifications only

Answer 15

Black box based test generation

Question 16

Design Document + Functional Specifications

Answer 16

Grey box based test generation

Question 17

Black-box unit/module testing techniques

Answer 17

• Boundary value analysis
• Equivalence class testing
• Decision table / decision tree based testing
• State based testing
• Robustness testing

Question 18

test inputs
obtained from the boundaries
Serious errors hide at the boundaries.
For example, simple boundary values for an
input of integer data type would include
-INT_MAX, -INT_MAX + 1, -1, 0, +1, INT_MAX -1 and
INT_MAX.

Answer 18

Boundary Value Analysis (BVA):

Question 19

• Partitioning input domain into disjoint
  subsets or partitions
• Partition includes related values
• Consider one test input from each partition
• Example: “all positive numbers”

Answer 19

Equivalence class testing

Question 20

• Decision table: each column denoting a rule
  becomes the basis of a test case
• Conditions produce inputs
• Actions produce expected outputs

Answer 20

Decision table-based testing

Question 21

• Each distinct path from the root node to a leaf
  node is the basis of a test case
• If along the path, a variable input value does
  not exist, the test input for that variable can be
  assigned any valid value.

Answer 21

Decision tree-based testing

Question 22

An implemented finite state machine (FSM)
conforms to its specification, if the observed
output sequence matches the expected output
according to the specification

Answer 22

State-based testing