gradle {
                'one.gradle'('''
                    class Greeter { String toString() { 'Greetings from One!' } }
                    greet.doLast() { println new Greeter() }
                ''')

                'two.gradle'('''
                    class Greeter { String toString() { 'Greetings from Two!' } }
                    greet.doLast() { println new Greeter() }
                ''')
            }

        expect:
        def message = new ForwardInput("greetings".bytes)
        def messageResult = serialize(message, serializer)
        messageResult instanceof ForwardInput
        messageResult.bytes == message.bytes
    }

    def "can serialize UserResponse messages"() {
        expect:
        def message = new UserResponse("greetings")
        def messageResult = serialize(message, serializer)

        def runGreetWith = { String greeting ->
            inDirectory('root')
            switch (systemPropertySource) {
                case SystemPropertySource.COMMAND_LINE:
                    return configurationCacheRun('greet', "-Dgreeting=$greeting")
                case SystemPropertySource.GRADLE_PROPERTIES:
                    file('root/gradle.properties').text = "systemProp.greeting=$greeting"

        def producer = file('producer')
        def consumer = file('consumer')
        def pluginModule = mavenRepo.module('com.example', 'producer', '1.0')
        def pluginMarker = mavenRepo.module('com.example.greeting', 'com.example.greeting.gradle.plugin', '1.0')

        producer.file('settings.gradle') << ''
        producer.file('build.gradle') << """
            plugins {
                id('java-gradle-plugin')

        def producer = file('producer')
        def consumer = file('consumer')
        def pluginModule = mavenRepo.module('com.example', 'producer', '1.0')
        def pluginMarker = mavenRepo.module('com.example.greeting', 'com.example.greeting.gradle.plugin', '1.0')

        producer.file('settings.gradle').createFile()
        producer.file('build.gradle') << """
            plugins {
                id('java-gradle-plugin')

            doLast {
                println("Hello from plugin 'com.tutorial.greeting'")
            }
        }
    }
}
----
=====

As we can see, the `license` plugin, when applied, exposes a `greeting` task with a simple print statement.

== Step 5. View Plugin Tasks

When the `license` plugin is applied to the `app` project, the `greeting` task becomes available:

tasks.register("hello") {
    group = "Custom"
    description = "A lovely greeting task."
    doLast {
        println("Hello world!")
    }
}
----

Once the task is assigned to a group, it will be listed by `./gradlew tasks`:

[source]
----
$ ./gradlew tasks

> Task :tasks

Custom tasks
------------------
hello - A lovely greeting task.
----

----

NOTE: You will encounter a permission failure if you attempt to publish the example Greeting Plugin with the ID used in this section.
That's expected and ensures the portal won't be overrun with multiple experimental and duplicate greeting-type plugins.

After approval, your plugin will be available on the Gradle Plugin Portal for others to discover and use.

[[consume]]

<5> Alternative notation to calling Property.set()

----
$ gradle greeting
include::{snippetsPath}/providers/propertyAndProvider/tests/usePropertyAndProvider.out[]
----

The `Greeting` task has a property of type `Property<String>` to represent the configurable greeting and a property of type `Provider<String>` to represent the calculated, read-only, message.

       *
       * Example:
       * ```
       * --> POST /greeting http/1.1 (3-byte body)
       *
       * <-- 200 OK (22ms, 6-byte body)
       * ```
       */
      BASIC,

      /**
       * Logs request and response lines and their respective headers.
       *
       * Example:
       * ```
       * --> POST /greeting http/1.1
       * Host: example.com
       * Content-Type: plain/text