package org.myorg;

import org.gradle.api.DefaultTask;
import org.gradle.api.provider.Property;
import org.gradle.api.tasks.Input;
import org.gradle.api.tasks.TaskAction;

abstract public class Deploy extends DefaultTask {

    @Input
    abstract public Property<String> getUrl();

    @TaskAction
    public void deploy() {
        System.out.println("Deploying to URL " + getUrl().get());
    }

package org.myorg;

import org.gradle.api.Plugin;
import org.gradle.api.Project;

// tag::snippet[]
public class BinaryRepositoryVersionPlugin implements Plugin<Project> {
    public void apply(Project project) {
        BinaryRepositoryExtension extension =
            project.getExtensions().create("binaryRepo", BinaryRepositoryExtension.class);

        project.getTasks().register("latestArtifactVersion", LatestArtifactVersion.class, task -> {

package org.myorg.http

import spock.lang.Specification

class HttpResponseTest extends Specification {

    private static final int OK_HTTP_CODE = 200
    private static final String OK_HTTP_MESSAGE = 'OK'

    def "can access information"() {
        when:
        def httpResponse = new HttpResponse(OK_HTTP_CODE, OK_HTTP_MESSAGE)

        then:
        httpResponse.code == OK_HTTP_CODE
        httpResponse.message == OK_HTTP_MESSAGE

package org.myorg.http

import spock.lang.Specification

class HttpResponseTest extends Specification {

    private static final int OK_HTTP_CODE = 200
    private static final String OK_HTTP_MESSAGE = 'OK'

    def "can access information"() {
        when:
        def httpResponse = new HttpResponse(OK_HTTP_CODE, OK_HTTP_MESSAGE)

        then:
        httpResponse.code == OK_HTTP_CODE
        httpResponse.message == OK_HTTP_MESSAGE

package org.myorg;

import java.util.Optional;
import java.net.URI;
import org.gradle.jvm.toolchain.JavaToolchainResolver;
import org.gradle.jvm.toolchain.JavaToolchainRequest;
import org.gradle.jvm.toolchain.JavaToolchainDownload;

// tag::java-toolchain-resolver-implementation[]
public abstract class JavaToolchainResolverImplementation
        implements JavaToolchainResolver { // <1>

package org.myorg;

import org.gradle.api.Plugin;
import org.gradle.api.Project;

// tag::snippet[]
public class BinaryRepositoryVersionPlugin implements Plugin<Project> {
    public void apply(Project project) {
        BinaryRepositoryExtension extension =
            project.getExtensions().create("binaryRepo", BinaryRepositoryExtension.class);

        project.getTasks().register("latestArtifactVersion", LatestArtifactVersion.class, task -> {

package org.myorg;

import org.gradle.api.DefaultTask;
import org.gradle.api.provider.Property;
import org.gradle.api.tasks.Input;
import org.gradle.api.tasks.TaskAction;

// tag::snippet[]
abstract public class LatestArtifactVersion extends DefaultTask {

    @Input
    abstract public Property<String> getCoordinates();

    @Input
    abstract public Property<String> getServerUrl();

    @TaskAction

----

The class `HttpResponse` represents a good candidate for a unit test.
It does not reach out to any other classes nor does it use the Gradle API.

.HttpResponseTest.groovy
[source,groovy]
----
include::{snippetsPath}/developingPlugins/testingPlugins/groovy/url-verifier-plugin/src/test/groovy/org/myorg/http/HttpResponseTest.groovy[]
----

import org.apache.ivy.core.module.id.ModuleRevisionId
import spock.lang.Specification

class IvyUtilTest extends Specification {
    def "create module revision ID"() {
        when:
        List l = ['myorg', 'myname', 'myrev']
        ModuleRevisionId moduleRevisionId = IvyUtil.createModuleRevisionId(*l)

        then:
        l[0] == moduleRevisionId.organisation
        l[1] == moduleRevisionId.name

// tag::apply[]
// tag::publish[]
plugins {
    `kotlin-dsl`
// end::apply[]
    `maven-publish`
// tag::apply[]
}
// end::apply[]

group = "com.myorg.conventions"
version = "1.0"

publishing {
    repositories {
        maven {
            // change to point to your repo, e.g. http://my.org/repo
            url = uri(layout.buildDirectory.dir("repo"))
        }
    }
}

tasks.publish {
    dependsOn("check")