Port H2Example to Scala 3 with fewer braces.

Author: mrdziuban

scalasql/test/src-3/Scala3ExampleTests.scala

@@ -0,0 +1,7 @@
+package scalasql
+
+import utest._
+
+object Scala3ExampleTests extends TestSuite:
+  def tests = Tests:
+    test("h2") - example.Scala3H2Example.main(Array())

scalasql/test/src-3/example/Scala3H2Example.scala

@@ -0,0 +1,61 @@
+package scalasql.example
+
+import scalasql.Table
+import scalasql.H2Dialect._
+
+object Scala3H2Example:
+
+  case class ExampleProduct[T[_]](
+      id: T[Int],
+      kebabCaseName: T[String],
+      name: T[String],
+      price: T[Double]
+  )
+
+  object ExampleProduct extends Table[ExampleProduct]
+
+  // The example H2 database comes from the library `com.h2database:h2:2.2.224`
+  val dataSource = new org.h2.jdbcx.JdbcDataSource
+  dataSource.setUrl("jdbc:h2:mem:testScala3;DB_CLOSE_DELAY=-1")
+  lazy val h2Client = new scalasql.DbClient.DataSource(
+    dataSource,
+    config = new scalasql.Config {}
+  )
+
+  def main(args: Array[String]): Unit =
+    h2Client.transaction: db =>
+      db.updateRaw("""
+      CREATE TABLE example_product (
+          id INTEGER AUTO_INCREMENT PRIMARY KEY,
+          kebab_case_name VARCHAR(256),
+          name VARCHAR(256),
+          price DECIMAL(20, 2)
+      );
+      """)
+
+      val inserted = db.run(
+        ExampleProduct.insert.batched(_.kebabCaseName, _.name, _.price)(
+          ("face-mask", "Face Mask", 8.88),
+          ("guitar", "Guitar", 300),
+          ("socks", "Socks", 3.14),
+          ("skate-board", "Skate Board", 123.45),
+          ("camera", "Camera", 1000.00),
+          ("cookie", "Cookie", 0.10)
+        )
+      )
+
+      assert(inserted == 6)
+
+      val result =
+        db.run(ExampleProduct.select.filter(_.price > 10).sortBy(_.price).desc.map(_.name))
+
+      assert(result == Seq("Camera", "Guitar", "Skate Board"))
+
+      db.run(ExampleProduct.update(_.name === "Cookie").set(_.price := 11.0))
+
+      db.run(ExampleProduct.delete(_.name === "Guitar"))
+
+      val result2 =
+        db.run(ExampleProduct.select.filter(_.price > 10).sortBy(_.price).desc.map(_.name))
+
+      assert(result2 == Seq("Camera", "Skate Board", "Cookie"))