Drools pet knowledge base / published by https://github.com/dacr/code-examples-manager #d5786f29-dd7b-4635-a95d-c2cb8fc57cb4/fc55309a85fe564cc7fd4a742fcbc9aa1e482567

drools-kb-pets.sc

// summary : Drools pet knowledge base
// keywords : scala, drools, mvel, scalatest, ai, knowledgebase, @testable
// publish : gist
// authors : David Crosson
// license : Apache NON-AI License Version 2.0 (https://raw.githubusercontent.com/non-ai-licenses/non-ai-licenses/main/NON-AI-APACHE2)
// id : d5786f29-dd7b-4635-a95d-c2cb8fc57cb4
// created-on : 2019-10-03T08:46:39+02:00
// managed-by : https://github.com/dacr/code-examples-manager
// run-with : scala-cli $file

// ---------------------
//> using scala  "3.3.0"
//> using dep "fr.janalyse::drools-scripting:1.1.0"
//> using dep "org.scalatest::scalatest:3.2.16"
// ---------------------

import fr.janalyse.droolscripting._, org.scalatest._, flatspec._, matchers._, OptionValues._
object KbTest extends AnyFlatSpec with should.Matchers {
  val drl =
    """package animals
      |
      |import java.util.Date
      |
      |declare Pet
      |  name: String
      |  birth: Date
      |end
      |
      |declare Cat extends Pet
      |  lifeCount:int
      |end
      |
      |""".stripMargin

  "Animals KB" should "work" in {
    val facts = List(
      "animals.Cat"->"""{"name":"minou", "birth":"2019-01-01T14:00:00Z", "lifeCount":7}""",
    )
    val engine = DroolsEngine(drl)
    facts.foreach{case (kind, json) => engine.insertJson(json, kind)}
    engine.fireAllRules()
    engine.getObjects should have size(1)
    val cats = engine.getModelInstances("animals.Cat")
    cats.size shouldBe 1
  }
}
KbTest.execute()