Jenkins Interview Questions and Answers – Part 6

What are the parts of the task lifecycle

• Execution
• Initialization, Configuration, Execution (Ans)
• Initialization, Configuration, Execution, Finalization
• Configuration, Execution

How do you declare a typed task?

• task copyImages (type: Copy) (Ans)
• Copy copyImages
• task copyImages (Copy)

In a multi project build which two files do I need to add to the top level project?

• build.gradle and build.settings
• multi.gradle and settings.gradle
• build.gradle and settings.gradle (Ans)
• build.gradle and settings.properties

What does the wrapper task do?

• Wraps up the code so that any exceptions are caught
• Wraps gradle so it can be used from an IDE such as Eclipse
• Installs an extra set of Java tasks to make testing easier
• Ensures that all developers use the same version of Gradle to build the code (Ans)

What is the syntax for filtering tests in gradle?

• add a test { filter {} } closure (Ans)
• build only the tests you want to run
• you have to run all the tests, you cannot filter
• add the test-filter plugin

What does taskA.finalizedBy taskB do?

• Causes taskB to run before taskA
• Nothing, this is not yet available in Gradle
• Causes taskB to run after taskA (Ans)
• Causes taskA and taskB to run in parallel

How do you declare a task?

• Task taskName (Ans)
• Task.withName taskName
• taskName: Task
• Task: taskName

When copying files you can use which method to replace text?

• expand (Ans)
• replace
• insert
• regex

How do you declare dependencies between tasks?

• taskA : taskB
• taskB.runsBefore taskA
• taskA.depends taskB
• taskA.dependsOn taskB (Ans)

Which of the following is valid gradle syntax to add a compile dependency on junit?

• compile name=junit version=4.1.2
• compile ‘junit:junit:4.1.12’ (Ans)
• compile ‘junit:4.12’
• compile ‘junit:version:4.1.12’

What is the syntax for defining a repository in Gradle?

• use jcenter()
• repositories { jcenter() } (Ans)
• repository: jcenter()
• repositories: jcenter()

When you call doLast on a task twice passing different closures what happens?

• Only the first closure is executed
• Neither closure is executed, it is an error
• Only the last closure is executed
• Both closures are executed (Ans)

How do you add the java plugin?

• apply java plugin
• apply plugin ‘java’ (Ans)
• java ‘plugin’
• Do nothing. The plugin is always enabled

If you use the gradle-testsets-plugin how do you add an integrationTest sourceset in gradle?

• testSets { integrationTest = ‘myDir’ }
• integrationTest { dirName=’myDir’}
• testSets { integrationTest { dirName=’myDir’ } } (Ans)
• testSets { dirName=’myDir’}

When you use the << syntax which method on the task is executed?

• last
• first
• doFirst
• doLast (Ans)

When you taskA.mustRunAfter taskB

• taskB always runs after
• taskA always runs after taskB
• taskA runs after taskB only if both tasks are scheduled to run (Ans)

If I want to run a java application which plugin do I use?

• java-runner
• java
• run
• application (Ans)

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