neo4j cypher queries - simple embedded test example with test framework / published by https://github.com/dacr/code-examples-manager #182a2ba7-79e2-4e37-b58f-a4423bfffc11/bb6046247746461aea11ce358aac477fa30bb3d6

neo4j-cypher-raw-test-hello.sc

// summary : neo4j cypher queries - simple embedded test example with test framework
// keywords : scala, scalatest, neo4j, cypher, @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 : 182a2ba7-79e2-4e37-b58f-a4423bfffc11
// created-on : 2023-06-24T09:20:30+02:00
// managed-by : https://github.com/dacr/code-examples-manager
// run-with : scala-cli $file

// ---------------------
//> using scala "3.4.2"
//> using dep "org.neo4j.test:neo4j-harness:5.20.0"
//> using dep "org.neo4j.driver:neo4j-java-driver:5.21.0"
//> using dep "org.scalatest::scalatest:3.2.18"
// ---------------------

import org.scalatest.*
import flatspec.*
import matchers.*
import org.neo4j.harness.{Neo4j, Neo4jBuilders}
import org.neo4j.driver.{AuthTokens, Driver, GraphDatabase}

import scala.compiletime.uninitialized
import scala.util.Using

object Neo4jCypherTest extends AnyFlatSpec with should.Matchers with BeforeAndAfterAll {

  val fixture =
    """
      |CREATE (:Person {name: 'Jane'})
      |CREATE (:Person {name: 'Joe'})
      |""".stripMargin

  var embedded: Neo4j = uninitialized
  var driver: Driver  = uninitialized

  override def beforeAll(): Unit = {
    val builder =
      Neo4jBuilders
        .newInProcessBuilder()
        .withFixture(fixture)
    embedded = builder.build()
    driver = GraphDatabase.driver(embedded.boltURI(), AuthTokens.none())
  }
  override def afterAll(): Unit  = {
    driver.close()
    embedded.close()
  }

  "Cypher count query" should "return the right number of nodes" in {
    val query   = "MATCH (n) RETURN count(n) AS count"
    val result  = driver.session().run(query) // in tests we don't care about closing session
    val count   = result.single().get("count").asInt()
    count shouldBe 2
  }
}

Neo4jCypherTest.execute()