Gradle with Groovy and SpockFramework testing

build.gradle

apply plugin: 'java'
apply plugin: 'groovy'
apply plugin: 'eclipse'

repositories {
	mavenCentral()
}

dependencies {
	groovy 'org.codehaus.groovy:groovy-all:1.8.3'
	testCompile 'org.spockframework:spock-core:0.5-groovy-1.8'
}

sourceCompatibility = 1.5
version = '1.0'

jar {
	manifest {
		attributes 'Implementation-Title': 'PLWebXML API', 'Implementation-Version': version
	}
}

SimpleReadWriteSpecification.groovy

import spock.lang.Specification

class SimpleReadWriteSpecification extends Specification {
	
	def "Simple PLXML file read"() {

	}
}