İstanbul evden eve nakliyat Beylikd¨¹z¨¹ evden eve nakliyat Tuzla evden eve nakliyat
Tutorial-5 Estimation of Complexity Measure V-G For a Triangle
Delicious Bookmark this on Delicious
software testing genius

Tutorial-5 Estimation of Complexity Measure V-G For a Triangle

Welcome to “Software Testing Genius”. Subscribe to my RSS feed for latest content on Software Testing.

Tutorial-5: Estimation of Complexity Measure V(G): For a Triangle

Objective of the Tutorial:
To draw a Flow Graph, find its Cyclomatic Complexity, V(G) and the independent paths for the program reading a, b and c as the three sides of a triangle and determines whether they form an isosceles, equilateral or scalene triangle.

A brief Introduction to Basis Path Testing & measurement of Complexity Measure V(G):

Basis path testing helps a tester to compute logical complexity measure, V(G), of the code. This value of V(G), defines the maximum number of test cases to be designed by identifying basis set of execution paths to ensure that all statements are executed at least once.

Steps to compute the complexity measure, V(G) are as under

Step

– 1: Construct the flow graph from the source code or flow charts.

Refer Following Tutorial on :

Flow Graph and its Notations

Step – 2:
Identify independent paths.

Step – 3: Calculate Cyclomatic Complexity, V(G).

Step – 4:
Design the test cases.

Starting point for the Tutorial: Is the construction of the Flow Chart followed by a Flow Graph:

Step – 1: Start preparing the following Flow Chart


Step – 2: Draw the following Flow Graph



Step – 3: Calculation of Cyclomatic Complexity V(G) by three methods

Method – 1: V(G) = e – n + 2 ( Where "e" are edges & "n" are nodes)

V(G) = 10– 8 + 2 = 2 + 2 = 4

Method – 2: V(G) = P + 1 (Where P – No. of predicate nodes with out degree = 2)

V(G) = 3 + 1 = 4 (Nodes 2, 4 & 6 are predicate nodes with 2 outgoing edges)

Method – 3: V(G) = Number of enclosed regions + 1 = 3+1=4
( Here R1, R2 & R3 are the enclosed regions and 1 corresponds to one outer region)

V(G) = 4 and is same by all the three methods.

Conclusions from the above tutorial:

The test cases for each of the path are:

Path - 1: Test case 1
a, b, c : valid input

Expected results:
if s = b or b = c or a = c then message `isosceles triangle, is displayed.

Path - 2: Test case 2
a, b, c : valid input

Expected results:
Expected results : if s # b * c then message `scalene triangle, is displayed.

Path - 3: Test case 3
a, b, c : valid input

Expected
results: if s = b = c then message `equilateral triangle, is displayed.

Path - 4: Test case 4
a, b, c : valid float inputs and if a > 0 and b > 0 and c >0

Expected results:
proper inputs-a, b and c and proper results.

Many more Articles & Tutorials on White Box Testing

Largest Database of Sample Papers - 1000+ Unique Questions for ISTQB Foundation Exam

ISTQB Foundation Exam - Full Crash Course for Download

ISTQB Advanced CTAL Test Analysts Exam - Full Crash Course for Download


ISTQB Advanced CTAL Test Manager Exam - Full Crash Course for Download


What Successful Testers say about the Quality of this website

If you want to keep track of further articles on Software Testing,
I suggest you to subscribe my
RSS feed
.

You can also Subscribe by E-mail
and get All New articles delivered directly to your Inbox.

Get your Absolutely Free Copy of Several MS PowerPoint Presentations & E-Books related to ISTQB, HP Load Runner, IBM RFT, HP QTP & QC Certification Exams, prepared by Popular Writers & Trainers, by writing to: Software.testing.genius@gmail.com

Full Study Material for Popular Certification Exams:

Study Material - HP QTP & QC Certification Exam

Study Material - IBM RFT Certification Exam

Study Material - HP LoadRunner Certification Exams for All Modules

Study Material - ISTQB Certification Exam

Most Popular Topics in Demand:

Practical Roadmap to QTP Certification

Practical Roadmap to CSTE Certification

Consolidated Study Material - Testing & QA

Rehearsal of QTP in 1 Hr. -  Interview Questions

 

Comments :

comments ↓


Leave Your Comments: (*) Marked Fields are Mandatory

You can apply basic formatting to the text

Name *
 
Email Address *
 
Website
 
Speak your mind
characters
sex hikayeleri