1. How to start selenium rc server with user extensions?

The command used is
java -jar selenium-server.jar -userExtensions user-extensions.js
Note: In this case, the java script file user-extensions.js file name should always fixed. If the name or extension is changed the selenium rc server will not start.

2. What are the limitations of selenium RC?

The limitations of selenium RC are:
1) Switching between the multiple instances of the same browser is not possible
2) Switching between the multiple instances of the different browsers is not possible
3) Browser navigation, like back and forward button emulations is not possible
4) Limited features in terms of drag and drop of objects
5) To work with Ajax based UI elements there are very limited features are there with Selenium RC
To overcome the above limitations we use selenium web driver or google web driver

3. How to run Selenium IDE test suite with user extensions using Selenium Remote Control?

to run Selenium IDE test suite with user extensions using Selenium Remote Control we need to use the below command.
java -jar selenium-server.jar -userExtensions user-extensions.js -htmlSuite "*<browser>" "<base URL>" "<Selenium test suite file>" "<results log file>" -timeout <millise>

4. How to execute the selenium test suite with testNG in XML?

Assume that you have two classes which are having suite of test cases with the below mentioned methods.
class1 or suite 1: the class by name MercTestNgSuite in the package com.src.testng with the methods
1. testLogin1
2. testFindFlights
3. testSelectFlights
4. testFillUserDetails
class1 or suite 2:the class by name MercTestNgSuite2 in the package com.src.testng with the methods
1. testLogin1
2. testFindFlights
3. testSelectFlights
4. testFillUserDetails
5. testVerifyFlightConf
6. testLogout
The two class suites can be executed as mentioned
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
<suite thread-count="5" skipfailedinvocationCounts="false" verbose="1" name="MercPrj" junit="false" parallel="false" annotations="JDK">
<test verbose="2" name="com.src.testng.*" junit="false" annotations="JDK">
<classes>
<class name="com.src.testng.MercTestNgSuite"/>
<methods>
<include name="testLogin1"/>
<include name="testFindFlights"/>
<include name="testSelectFlights"/>
<include name="testFillUserDetails"/>
</methods>
<class name="com.src.testng.MercTestNgSuite2"/>
<methods>
<include name="testLogin1"/>
<include name="testFindFlights"/>
<include name="testSelectFlights"/>
<include name="testFillUserDetails"/>
<include name="testVerifyFlightConf"/>
<include name="testLogout"/>
</methods>
</classes>
</test>
</suite>

5. How to incude or exclude the selenium rc test cases using xml in TestNG?

Including or excluding of selenium rc test cases using xml in TestNG can be done using the keywords include or exlude
For including a test case we need to use <include name="method name"/> under the class whichever the method you want to include
For excluding a test case we need to use <exclude name="method name"/> under the class whichever the method you want to include
For example if you have a class MercTestNgSuite in package com.src.testng want to include the methods like:
1. testLogin1
2. testFindFlights
3. testSelectFlights
4. testFillUserDetails
5. testVerifyFlightConf
and exclude
6. testLogout
the xml can be written as mentioned below.
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
<suite thread-count="5" skipfailedinvocationCounts="false" verbose="1" name="MercPrj" junit="false" parallel="false" annotations="JDK">
<test verbose="2" name="com.src.testng.MercTestNgSuite" junit="false" annotations="JDK">
<classes>
<class name="com.src.testng.MercTestNgSuite"/>
<methods>
<include name="testLogin1"/>
<include name="testFindFlights"/>
<include name="testSelectFlights"/>
<include name="testFillUserDetails"/>
<include name="testVerifyFlightConf"/>
<exclude name="testLogout"/>
</methods>
</classes>
</test>

6. How to execute the test cases in an XML format using TestNG in Selenium?

If you want to execute a java file MercTestNgSuite.java which is there in the package com.src.testng. You can use the belowmentioned code in a xml file. And the test can be run by right clicking the XML and running as TestNG Suite
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
<suite thread-count="5" skipfailedinvocationCounts="false" verbose="1" name="MercPrj" junit="false" parallel="false" annotations="JDK">
<test verbose="2" name="com.src.testng.MercTestNgSuite" junit="false" annotations="JDK">
<classes>
<class name="com.src.testng.MercTestNgSuite"/>
</classes>
</test>
</suite> ??

7. How to run the test cases in group in Selenium using TestNG?

Test cases in group in Selenium using TestNG will be executed with the below options.
If you want to execute the test cases based on one of the group like regressiontest or smoketest
@Test(groups = {"regressiontest", "smoketest"})

8. How to run test cases with dependent in Selenium using TestNG?

The @Test should be followed by (dependsOnMethods = "testLogin")
Note:- The test case will be executed after the testLogin case
Ex: @Test(dependsOnMethods = "testLogin")

9. What are the basic annotations used to run TestNG tests in Selenium?

The basic annotations used to run TestNG tests in Selenium RC:
1. @BeforeClass: The annotated method with @BeforeClass will be run before the first test method in the current class is invoked.
2. @AfterClass: The annotated method with @AfterClass will be run after all the test methods in the current class have been run.
3. @BeforeMethod: The annotated method with @BeforeMethod will be run before each test method.
4. @AfterMethod: The annotated method with @AfterMethod will be run after each test method.
5. @Test: Marks a class or a method @Test with as part of the test.

10. What are the challenges with Selenium RC test suites when running in JUnit?

The challenges with Selenium RC test suites when running in JUnit
1. Each test case of Selenium RC test will invoke the browser and closes after playing back
2. All the Test cases cannot run on a single browser session
3. If there is any dependency between the test cases, it is very difficult to execute
4. Running the test suites in junit will be helpful for only independent test cases.
Note: The dependent test case related issues can be addressed by using TestNG with junit

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