Gradle - Create Integration Tests

integration_test.gradle

// Assumes 'java', 'groovy' or 'scala' plugins have been applied before

// Add integration test source sets
sourceSets {
  integrationTest { sourceSet ->
    ["java", "groovy", "scala", "resources"].each {
      if (!sourceSet.hasProperty(it)) return
      sourceSet."$it".srcDir file("src/integration-test/${it}")
    }
  }
}

// Setup dependencies for integration testing
dependencies {
  integrationTestCompile sourceSets.main.output
  integrationTestCompile sourceSets.test.output
  integrationTestCompile configurations.testCompile
  integrationTestRuntime configurations.testRuntime
}

// Define integration test task
task integrationTest(type: Test) {
  testClassesDir = sourceSets.integrationTest.output.classesDir
  classpath = sourceSets.integrationTest.runtimeClasspath
}

// Make sure 'check' task calls integration test
check.dependsOn integrationTest