When?
When the application is functionally stable.
Don’t?
Application rapidly changing.
Do?
Application is stable.
- Web load is a open source as well as licensed.
Testing Tools:
IBM – Rational performer
HP – Load runner
About Load testing:
Like functional testing we won’t test all the functions in load testing.
We will test only the critical scenarios.
For example:
In a railway reservation application - Ticket booking will be a critical scenario, why because that will be done frequently.
And profile updating will be there, that mostly will occur in rare case. So that will be left out in load testing.
Load test plan will be prepared at first, before going to load testing.
What it will cover?
- How many users will access that application.
- Which tool can be used for testing the application.
- Data collection is one part of load testing.
Correlation – For dynamic data parameterization.
Vusers generator:
1 user repeating the same task again an again.
Example:
If we want to run for 1000 users, with a single users we can’t run for 1000 users.
On that time the script will run only in one system. But using the generator we can add other systems also in this load testing by adding its IP address. (For running for 1000 users we can have 8 systems, so we have to give the 8 system IP in the system we are running the script.)
Controller:
It will generate virtual users.
Here we can design the load and run.
Run can be done simultaneously or 1 by 1.
--------------
Load runner will capture what is going on between client and server.
---------------
Protocol:
- Set of rules to communicate.
Correlation:
- Automatic
- Manual
It will take the value in between the left boundary and right boundary,
Crtl+ T – Start Transaction
Ctrl+ D – End Transaction
Shift + F5 – For compiling.
Ctrl+F8 – For correlation
Parameterization:
We can parameterize any columns, by importing data’s from a notepad.
Separate text file for username and password,
Notepad
-------------------------------------------------------
Username
Sundar
Arulraj
Sarathy (press enter)
-------------------------------------------
Single text file for username and password.
Notepad
-------------------------------------------------------
Username,password
Sundar,sundar
Arulraj,arulraj
Sarathy,sarathy (press enter)
-------------------------------------------
The coma what we have used in b/w the user name and password is called as the delimiter
Delimiter can be comma, space or /
If there are 20 edit box in a page, we can have 20 parameters in a single text file.
- Select the parameter and set it to ‘select by name’ or ‘number’.
Tuesday, June 23, 2009
Monday, June 22, 2009
Difference between BVT and BAT?
As soon as the build recieved..
First one will be Navigation testing. To make sure that there is no broken links or tabs that should not stop from testing.
Second will be Build Verification Test (BVT), 10 to 15% of the total test cases will be executed in this test to make sure the build is stable enough to go for further testing.
eg: If we are not able to add something, both modify and delete cannot be tested.
Then the test will fail.
If BVT fails, the build will be rejected.
Third will be the Build Acceptance Testing (BAT), This can also be called as system testing. Remaining 80 to 85% of the test cases will be executed in this test. That will cover the functionality/ UI etc..
First one will be Navigation testing. To make sure that there is no broken links or tabs that should not stop from testing.
Second will be Build Verification Test (BVT), 10 to 15% of the total test cases will be executed in this test to make sure the build is stable enough to go for further testing.
eg: If we are not able to add something, both modify and delete cannot be tested.
Then the test will fail.
If BVT fails, the build will be rejected.
Third will be the Build Acceptance Testing (BAT), This can also be called as system testing. Remaining 80 to 85% of the test cases will be executed in this test. That will cover the functionality/ UI etc..
Try to answer these questions
Try to answer these questions:
------------------------------
1. Verification is:
a. Checking that we are building the right system
b. Checking that we are building the system right
c. Performed by an independent test team
d. Making sure that it is what the user really wants
2. A regression test:
a. Will always be automated
b. Will help ensure unchanged areas of the software have not been affected
c. Will help ensure changed areas of the software have not been affected
d. Can only be run during user acceptance testing
3. If an expected result is not specified then:
a. We cannot run the test
b. It may be difficult to repeat the test
c. It may be difficult to determine if the test has passed or failed
d. We cannot automate the user inputs
4. Which of the following could be a reason for a failure
1) Testing fault
2) Software fault
3) Design fault
4) Environment Fault
5) Documentation Fault
a. 2 is a valid reason; 1,3,4 & 5 are not
b. 1,2,3,4 are valid reasons; 5 is not
c. 1,2,3 are valid reasons; 4 & 5 are not
d. All of them are valid reasons for failure
5. Test are prioritized so that:
a. You shorten the time required for testing
b. You do the best testing in the time available
c. You do more effective testing
d. You find more faults
6. Which of the following is not a static testing technique
a. Error guessing
b. Walkthrough
c. Data flow analysis
d. Inspections
7. Which of the following statements about component testing is not true?
a. Component testing should be performed by development
b. Component testing is also know as isolation or module testing
c. Component testing should have completion criteria planned
d. Component testing does not involve regression testing
8. During which test activity could faults be found most cost effectively?
a. Execution
b. Design
c. Planning
d. Check Exit criteria completion
9. Which, in general, is the least required skill of a good tester?
a. Being diplomatic
b. Able to write software
c. Having good attention to detail
d. Able to be relied on
10. The purpose of requirement phase is
a. To freeze requirements
b. To understand user needs
c. To define the scope of testing
d. All of the above
11. The process starting with the terminal modules is called -
a. Top-down integration
b. Bottom-up integration
c. None of the above
d. Module integration
12. The inputs for developing a test plan are taken from
a. Project plan
b. Business plan
c. Support plan
d. None of the above
13. Function/Test matrix is a type of
a. Interim Test report
b. Final test report
c. Project status report
d. Management report
14. Defect Management process does not include
a. Defect prevention
b. Deliverable base-lining
c. Management reporting
d. None of the above
15. What is the difference between testing software developed by contractor outside your country, versus testing software developed by a contractor within your country?
a. Does not meet people needs
b. Cultural difference
c. Loss of control over reallocation of resources
d. Relinquishments of control
16. Software testing accounts to what percent of software development costs?
a. 10-20
b. 40-50
c. 70-80
d. 5-10
17. A reliable system will be one that:
a. Is unlikely to be completed on schedule
b. Is unlikely to cause a failure
c. Is likely to be fault-free
d. Is likely to be liked by the users
18. How much testing is enough
a. This question is impossible to answer
b. The answer depends on the risks for your industry, contract and special requirements
c. The answer depends on the maturity of your developers
d. The answer should be standardized for the software development industry
19. Which of the following is not a characteristic for Testability?
a. Operability
b. Observability
c. Simplicity
d. Robustness
20. Cyclomatic Complexity method comes under which testing method.
a. White box
b. Black box
c. Green box
d. Yellow box
21. Which of these can be successfully tested using Loop Testing methodology?
a. Simple Loops
b. Nested Loops
c. Concatenated Loops
d. All of the above
22. To test a function, the programmer has to write a ______, which calls the function and passes it test data.
a. Stub
b. Driver
c. Proxy
d. None of the above
23. Equivalence partitioning is:
a. A black box testing technique used only by developers
b. A black box testing technique than can only be used during system testing
c. A black box testing technique appropriate to all levels of testing
d. A white box testing technique appropriate for component testing
24. When a new testing tool is purchased, it should be used first by:
a. A small team to establish the best way to use the tool
b. Everyone who may eventually have some use for the tool
c. The independent testing team
d. The vendor contractor to write the initial scripts
25. Inspections can find all the following except
a. Variables not defined in the code
b. Spelling and grammar faults in the documents
c. Requirements that have been omitted from the design documents
d. How much of the code has been covered
------------------------------
1. Verification is:
a. Checking that we are building the right system
b. Checking that we are building the system right
c. Performed by an independent test team
d. Making sure that it is what the user really wants
2. A regression test:
a. Will always be automated
b. Will help ensure unchanged areas of the software have not been affected
c. Will help ensure changed areas of the software have not been affected
d. Can only be run during user acceptance testing
3. If an expected result is not specified then:
a. We cannot run the test
b. It may be difficult to repeat the test
c. It may be difficult to determine if the test has passed or failed
d. We cannot automate the user inputs
4. Which of the following could be a reason for a failure
1) Testing fault
2) Software fault
3) Design fault
4) Environment Fault
5) Documentation Fault
a. 2 is a valid reason; 1,3,4 & 5 are not
b. 1,2,3,4 are valid reasons; 5 is not
c. 1,2,3 are valid reasons; 4 & 5 are not
d. All of them are valid reasons for failure
5. Test are prioritized so that:
a. You shorten the time required for testing
b. You do the best testing in the time available
c. You do more effective testing
d. You find more faults
6. Which of the following is not a static testing technique
a. Error guessing
b. Walkthrough
c. Data flow analysis
d. Inspections
7. Which of the following statements about component testing is not true?
a. Component testing should be performed by development
b. Component testing is also know as isolation or module testing
c. Component testing should have completion criteria planned
d. Component testing does not involve regression testing
8. During which test activity could faults be found most cost effectively?
a. Execution
b. Design
c. Planning
d. Check Exit criteria completion
9. Which, in general, is the least required skill of a good tester?
a. Being diplomatic
b. Able to write software
c. Having good attention to detail
d. Able to be relied on
10. The purpose of requirement phase is
a. To freeze requirements
b. To understand user needs
c. To define the scope of testing
d. All of the above
11. The process starting with the terminal modules is called -
a. Top-down integration
b. Bottom-up integration
c. None of the above
d. Module integration
12. The inputs for developing a test plan are taken from
a. Project plan
b. Business plan
c. Support plan
d. None of the above
13. Function/Test matrix is a type of
a. Interim Test report
b. Final test report
c. Project status report
d. Management report
14. Defect Management process does not include
a. Defect prevention
b. Deliverable base-lining
c. Management reporting
d. None of the above
15. What is the difference between testing software developed by contractor outside your country, versus testing software developed by a contractor within your country?
a. Does not meet people needs
b. Cultural difference
c. Loss of control over reallocation of resources
d. Relinquishments of control
16. Software testing accounts to what percent of software development costs?
a. 10-20
b. 40-50
c. 70-80
d. 5-10
17. A reliable system will be one that:
a. Is unlikely to be completed on schedule
b. Is unlikely to cause a failure
c. Is likely to be fault-free
d. Is likely to be liked by the users
18. How much testing is enough
a. This question is impossible to answer
b. The answer depends on the risks for your industry, contract and special requirements
c. The answer depends on the maturity of your developers
d. The answer should be standardized for the software development industry
19. Which of the following is not a characteristic for Testability?
a. Operability
b. Observability
c. Simplicity
d. Robustness
20. Cyclomatic Complexity method comes under which testing method.
a. White box
b. Black box
c. Green box
d. Yellow box
21. Which of these can be successfully tested using Loop Testing methodology?
a. Simple Loops
b. Nested Loops
c. Concatenated Loops
d. All of the above
22. To test a function, the programmer has to write a ______, which calls the function and passes it test data.
a. Stub
b. Driver
c. Proxy
d. None of the above
23. Equivalence partitioning is:
a. A black box testing technique used only by developers
b. A black box testing technique than can only be used during system testing
c. A black box testing technique appropriate to all levels of testing
d. A white box testing technique appropriate for component testing
24. When a new testing tool is purchased, it should be used first by:
a. A small team to establish the best way to use the tool
b. Everyone who may eventually have some use for the tool
c. The independent testing team
d. The vendor contractor to write the initial scripts
25. Inspections can find all the following except
a. Variables not defined in the code
b. Spelling and grammar faults in the documents
c. Requirements that have been omitted from the design documents
d. How much of the code has been covered
Testing Types
- Functional
- Black box Testing
- White box Testing
- Unit Testing
- Integration Testing
- System Testing
- User Acceptance Testing, etc
- Non Functional
- Performance Testing
- Load
- Stress
- Volume, etc
- Others
- Compatibility testing
- Adhoc testing, etc
Testing Techniques
- Static/ Review :
- Dynamic :
Testing the application without knowing the internal architecture of the application.
(ii) White Box Testing.
Testing the application by knowing the internal architecture of the application.
Saturday, June 13, 2009
What are stubs and drivers?
Stubs and drivers are dummy modules used in the integration testing on the absence of any of the modules. They were used in Top down and Bottom up strategy.
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