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Software Testing -- How do I Find Out a Bug/Error?
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Software Testing -- How do I Find Out a Bug/Error?
Basically, test cases/scripts are run in order to find out any unexpected behavior of the software product under test. If any such unexpected behavior or exception occurs, it is called a bug.

Posted on: 2014/10/6 16:49
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Software Testing-- What is a Bug/Error?
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Software Testing-- What is a Bug/Error?
A bug or an error in the software product is any exception that can hinder the functionality of either the whole software or a part of it.

Posted on: 2014/9/22 20:37
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Testing end-to-end? Remember, more could be counter productive
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Testing end-to-end? Remember, more could be counter productive

For end-to-end testing, let’s assume that product in question is a web-based e-commerce product such as Amazon. A typical end-to-end test for such a product could be on the lines of

User purchase an item
An order is generated
User gets order confirmation
Inventory is adjusted
Dispatch system gets order information
Dispatch is scheduled
Order status is updated
User gets notification about dispatch
Item is dispatched ...



Posted on: 2014/9/8 18:27
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Key areas of ETL (extract, transform, and load) testing
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Key areas of ETL (extract, transform, and load) testing


Was all the expected data loaded from the source file? Bugs that result in dropped records are common. You must do a full inventory count and ensure that the right records made it into the right tables across the source landing area, staging area, and data warehouse. Were some records rejected because of missing data? Find the problems and work out why they occurred.

Were all the records loaded into the right place? If the transaction order gets out of sync you can end up with all the records being processed, but some data gets over written with the older data or in the wrong place. It's important to verify that each data field from each source loads in the correct field / table and in the correct order.

Do you have duplicate data? If you don't remove duplicate data then the analysis and aggregate reports could be skewed. Duplicates can happen due to the source system feeding duplicates or due to defects in the ETL processes. In either case, the duplicate check must happen as data moves across landing, staging, and finally into the data warehouse.

Do the data transformation rules work? You may receive data with different date formats, or using different codes or descriptions for the same thing. The transformation process has to homogenize that data correctly, so that it is stored consistently. Most data warehouses have many such transformation rules which must all be verified with sample data that represents all the various permutations / possibilities.

Have you lost any part of data? Maybe truncation has caused a problem because the source file was too big or changed the format. It is important to make sure data from source file did not get truncated as it gets processed from landing to staging to the data warehouse.


Is data being corrected and rejected correctly? Sometimes the data may be incomplete or unclear. It may be necessary to hold this data aside and move on with rest of the data. Such data must be logged and rejected for further clarification before it can be re-processed.

Is the system generating error logs? You need to know when data is not being processed and why. You also need a system that can gracefully handle something like a system crash or power outage without creating duplicates, losing records, or forcing the user to reprocess from the start (as much as possible).


Can the system handle the data load? Performance might not be an issue at first, but you have to think ahead. How much data will the system have to handle 2 years from now? What happens when system already has 5+ yeas of data and new data has to be processed? It must be able to cope with the expected load, not just now, but in the future too


Posted on: 2014/8/22 20:29
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Microsoft Interview Question for Software Engineer in Tests about Coding
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Microsoft Interview Question for Software Engineer in Tests about Coding


Write code for finding square root of a given no.

#include
void main(){
long int n,i,sum=0,k=1,f=0;

printf("ENTER THE NUMBER");
scanf("%ld",&n);
while(1){
sum+=(2*k-1);
if(sum==n)
{
f=1;
break;
}
else if(sum>n)
break;
k++;
}

if(f==1)
printf("This Number is Square Number Square root is:%d",k);
else
printf("This Number is not a Square Number");

}


Posted on: 2014/8/4 20:27
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Microsoft Interview Question for Software Engineer in Tests about Coding
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Microsoft Interview Question for Software Engineer in Tests about Coding

Write a function that takes in two rectangles and returns true if the overlap and false if they do not.

typedef struct
{
double x;
double y;
double width;
double height;
} rectangle;

bool overlap(rectangle *rect_a, rectangle *rect_b)
{
bool var = false;

if (rect_a->x<=rect_b->x && rect_a->y<=rect_b->y)
{
if(abs(rect_a->x-rect_b->x)<=rect_a->width &&
abs(rect_a->y-rect_b->y)<=rect_a->height)
var = true;
}
else if (rect_a->x>=rect_b->x && rect_a->y<=rect_b->y)
{
if(abs(rect_a->x-rect_b->x)<=rect_b->width &&
abs(rect_a->y-rect_b->y)<=rect_a->height)
var = true;
}
else if (rect_a->x>=rect_b->x && rect_a->y>=rect_b->y)
{
if(abs(rect_a->x-rect_b->x)<=rect_b->width &&
abs(rect_a->y-rect_b->y)<=rect_b->height)
var = true;
}
else if (rect_a->x<=rect_b->x && rect_a->y>=rect_b->y)
{
if(abs(rect_a->x-rect_b->x)<=rect_a->width &&
abs(rect_a->y-rect_b->y)<=rect_b->height)
var = true;
}
else
{
var = true;
}

return var;
}

Posted on: 2014/7/21 15:39
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On-Line Testing Tools for Developers and Testers
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On-Line Testing Tools for Developers and Testers
http://sqa.fyicenter.com/Online_Test_Tools/



FYIcenter.com has prepared some simple but very interesting on-line testing tools
that are useful for your programming and testing tasks:


Validators...

http://sqa.fyicenter.com/Online_Test_ ... Name_Format_Validator.php
Domain Name Format Validator
As a software developer or tester of Web applications, you may be required to know what is a valid domain name and what is an invalid domain name. A valid domain name must satisfy a number of requirements. This page allows you to learn and test domain name format again those requirements.


http://sqa.fyicenter.com/Online_Test_ ... ress_Format_Validator.php
IP (Version 4) Address Format Validator
If you are a software developer or tester of communication applications, you need to know what is a valid IP addresses and what is an invalid IP address. This page allows you to learn and test valid version 4 IP addresses.


http://sqa.fyicenter.com/Online_Test_ ... ress_Format_Validator.php
Email Address Format Validator
As a software developer or tester of Web applications, you are required to know what is a valid email address and what is an invalid email address. According the Internet specifications, there are a number of valid email address formats. This page allows you to learn and test email address of all formats.


http://sqa.fyicenter.com/Online_Test_ ... b_Browser_Information.php
Show Me My Browser's Identification Information
Whenever you are visiting a Website, your activities will be recorded against a client IP address
and host name that represent your computer at that time. This simple test page allows you to find out
what is your IP address and host name.


http://sqa.fyicenter.com/Online_Test_ ... _IP_Address_Host_Name.php
Show Me My IP Address and Host Name
Every Web browser sends an identification string to the Web server you are visiting.
The Web server can dynamically customize Web pages based on the browser identification.
This simple test page allows you to find out what is the identification string of your browser.


Regular expressions...
http://sqa.fyicenter.com/Online_Test_ ... ression_Match_Pattern.php
Testing Regular Expression Match Patterns
Regular expression started in Perl language. But it is now used everywhere: text editors, programming languages, and software testing tools. Regular expression is powerful, but hard to learn. This page allows you to learn and test regular expression with your own strings, match patterns, sub patterns, and modifiers.


http://sqa.fyicenter.com/Online_Test_ ... _Multiple_Occurrences.php
Testing Regular Expression Match Pattern of Multiple Occurrences
Regular expression pattern match with multiple occurrences is a very powerful tool in text editing, software programming and software testing. It can used to parse desired values of multiple occurrences out of text files. This page allows you to learn and test regular expression pattern match multiple occurrences.


http://sqa.fyicenter.com/Online_Test_ ... ession_Search_Replace.php
Testing Regular Expression Match and Replace
Regular expressions are commonly used in pattern matches and replacements processes. Many text editors, programming languages, and software testing tools offers pattern match and replacement functions. This page allows you to learn and test regular expression used in match and replacement processes.


PHP functions...
"http://sqa.fyicenter.com/Online_Test_Tools/Test_date_PHP_Function.php
Testing date() PHP Function
Date and time are used in every Web applications. But formatting a date and time value into a string presentation requires very programming skills. This page allows you to learn and test the date() function that gives so many ways to format a data and time value.


http://sqa.fyicenter.com/Online_Test_ ... ialchars_PHP_Function.php
Testing htmlspecialchars() PHP Function
When data needs to be presented in Web pages, HTML special characters must be well protected Otherwise, data well not be presented properly, or the Web will become corrupted. This page allows you to learn and test the htmlspecialchars() function to protect embedded data in Web pages.


http://sqa.fyicenter.com/Online_Test_ ... entities_PHP_Function.php
Testing htmlentities() PHP Function
When data needs to be presented in Web pages, HTML special characters must be well protected Otherwise, data well not be presented properly, or the Web will become corrupted. This page allows you to learn and test the htmlentities() function to protect embedded data in Web pages.


http://sqa.fyicenter.com/Online_Test_ ... y_decode_PHP_Function.php
Testing html_entity_decode() PHP Function
When data is embedded in HTML documents, special characters are resented in HTML entities to protect them from being interpreted by browsers. If you need them back, you can use the html_entity_decode() to convert them This page allows you to learn and test the html_entity_decode() function to convert HTML entities.


http://sqa.fyicenter.com/Online_Test_ ... rlencode_PHP_Function.php
Testing urlencode() PHP Function
When non-alphanumeric characters are presented in user data to be included as part of a Web page address, they need to be encoded into the percent (%) sign format as required by the application/x-www-form-urlencoded standard. This page allows you to learn and test the urlencode() function to perform URL encoding.


http://sqa.fyicenter.com/Online_Test_ ... rldecode_PHP_Function.php
Testing urldecode() PHP Function
When user data received by a Web server, it is presented in URL encoding format. If you retrieve this data from $_SERVER['QUERY_STRING'], you need to decode the data using the urldecode() function. If This page allows you to learn and test the urldecode() function to perform URL decoding.


Data converters...
http://sqa.fyicenter.com/Online_Test_ ... se64_Encode_Converter.php
Base64 Encode Converter
When data is communicated over the Internet, it needs to be encoded into printable characters so it can be safely transmitted through communication applications. This page allows you to learn and test the Base64 encoding process.


http://sqa.fyicenter.com/Online_Test_ ... se64_Decode_Converter.php
Base64 Decode Converter
When you receive email attachments, they are usually presented in Base64 encoded format. You can decode them yourself without using any email client tools. This page allows you to learn and test the Base64 decoding process.


http://sqa.fyicenter.com/Online_Test_Tools/UUencode_Converter.php
UUEncode Converter
On Unix systems, when data is communicated from one system to another system, it needs to be encoded into printable characters using the UUEncode algorith for safety reasons. This page allows you to learn and test the UUEncode process.


http://sqa.fyicenter.com/Online_Test_Tools/UUdecode_Converter.php
UUDecode Converter
If you receive files in UUencode format for transfer protection reasons, you can decode the file yourselt without using any Unix tools. This page allows you to learn and test the UUdecode process.


http://sqa.fyicenter.com/Online_Test_ ... nary_to_HEX_Converter.php
Binary to HEX Converter
Binary to HEX conversion is need if you want to open any non text file into a text editor to inspect issues like, hidden characters, corrupted UTF-8 sequences, corrupted file identifiers. This page allows you to learn and test the binary to HEX conversion process.


http://sqa.fyicenter.com/Online_Test_ ... X_to_Binary_Converter.php
HEX to Binary Converter
HEX to binary conversion is to reverse the process of binary to HEX conversion. This page allows you to learn and test the HEX to binary conversion process.


Random data generators...
http://sqa.fyicenter.com/Online_Test_ ... dom_Integer_Generator.php
Random Integer Generator
If you are software tester, you may need some random integers to be used as part of application input, or test data in a database. This page allows you to generate large amount of integers randomly for your test data need.


http://sqa.fyicenter.com/Online_Test_ ... Float_Value_Generator.php
Random Real Number/Float Value Generator
If you are software tester, you may need some random real numbers or float values to be used as part of application input, or test data in a database. This page allows you to generate large amount of real numbers randomly for your test data need.


http://sqa.fyicenter.com/Online_Test_ ... rency_Value_Generator.php
Random Price/Currency Value Generator
If you are software tester, you may need some random prices or currency values to be used as part of application input, or test data in a database. This page allows you to generate large amount of currency values randomly for your test data need.

http://sqa.fyicenter.com/Online_Test_ ... _Time_Value_Generator.php
Random Date and Time Value Generator
If you are software tester, you may need some random date and time values to be used as part of application input, or test data in a database. This page allows you to generate large amount of date and time values randomly for your test data need.


Test data generators...
<http://sqa.fyicenter.com/Online_Test_ ... r_Full_Name_Generator.php
Test User Full Name Generator Generator
If you are software tester, you may need some user full names to be used as part of application input. This page helps you to generate some random first names and last names for your test data need.


http://sqa.fyicenter.com/Online_Test_ ... rthday_Date_Generator.php
Test User Birthday Date Generator
If you are software tester, you may need some user birthday data to be used as part of application input. This page helps you to generate some random birthdays for your test data need.
<

http://sqa.fyicenter.com/Online_Test_ ... hone_Number_Generator.php
Phone Number Generator
If you are software tester, you may need some phone numbers to be used as part of application input. This page helps you to generate some random phone numbers for your test data need.


http://sqa.fyicenter.com/Online_Test_ ... ail_Address_Generator.php
Test Email Address Generator
If you are software tester, you may need some email addresses to be used as part of application input. Email addresses have special formatting rules. This page helps you to generate some email address in valid format for your test data need.


http://sqa.fyicenter.com/Online_Test_ ... Card_Number_Generator.php
Test Credit Card Number Generator
If you are software tester, you may need some credit card numbers to be used as part of application input. Credit card numbers have special prefixes and MOD 10 checks. This page helps you to generate some credit card numbers in valid format for your test data need.



Posted on: 2014/6/23 14:24
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Software Testing Standards
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Software Testing Standards



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Posted on: 2014/6/11 14:32
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PERL and C Programs for Validating and Checking - Gomez RealityCheck XF
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PERL and C Programs for Validating and Checking - Gomez RealityCheck XF

Gomez RealityCheck XF - Provides functional testing for Web 2.0 applications; a solution for cross-browser, functional QA testing of traditional, Ajax-enabled, and other Rich Internet Applications. Enables easy creation and loading of scripts of business transactions recorded using Selenium.

Posted on: 2014/3/17 22:34
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PERL and C Programs for Validating and Checking - Automation Anywhere
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PERL and C Programs for Validating and Checking - Automation Anywhere

Automation Anywhere - Functional test automation tool from Tethys Solutions, LLC, includes web test automation capabilities - includes a web recorder that understands web controls; web page data extraction capabilities. For Win platforms

Posted on: 2014/3/7 21:38
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