RelationalTypeTest.scala

package com.typesafe.slick.testkit.tests

import slick.ast.NumericTypedType
import com.typesafe.slick.testkit.util.{RelationalTestDB, AsyncTest}

/** Data type related test cases for RelationalProfile */
class RelationalTypeTest extends AsyncTest[RelationalTestDB] {
  import tdb.profile.api._

  def testNumeric = {
    def testStore[T](values: T*)(implicit tm: BaseColumnType[T] with NumericTypedType) = {
      class Tbl(tag: Tag) extends Table[(Int, T)](tag, "test_numeric") {
        def id = column[Int]("id")
        def data = column[T]("data")
        def * = (id, data)
      }
      val tbl = TableQuery[Tbl]
      val data = values.zipWithIndex.map { case (d, i) => (i+1, d) }
      val q = tbl.sortBy(_.id)
      seq(
        tbl.schema.create,
        tbl ++= data,
        q.result.map(_ shouldBe data),
        tbl.schema.drop
      )
    }

    seq(
      testStore[Int](-1, 0, 1, Int.MinValue, Int.MaxValue),
      ifCap(rcap.typeLong) { testStore[Long](-1L, 0L, 1L, Long.MinValue, Long.MaxValue) },
      testStore[Short](-1, 0, 1, Short.MinValue, Short.MaxValue),
      testStore[Byte](-1, 0, 1, Byte.MinValue, Byte.MaxValue),
      testStore[Double](-1.0, 0.0, 1.0),
      testStore[Float](-1.0f, 0.0f, 1.0f),
      ifCap(rcap.typeBigDecimal) {
        testStore[BigDecimal](BigDecimal("-1"), BigDecimal("0"), BigDecimal("1"),
          BigDecimal(Long.MinValue), BigDecimal(Long.MaxValue))
      }
    )
  }

  private def roundtrip[T : BaseColumnType](tn: String, v: T) = {
    class T1(tag: Tag) extends Table[(Int, T)](tag, tn) {
      def id = column[Int]("id")
      def data = column[T]("data")
      def * = (id, data)
    }
    val t1 = TableQuery[T1]

    seq(
      t1.schema.create,
      t1 += (1, v),
      t1.map(_.data).result.map(_ shouldBe Seq(v)),
      t1.filter(_.data === v).map(_.id).result.map(_ shouldBe Seq(1)),
      t1.filter(_.data =!= v).map(_.id).result.map(_ shouldBe Nil),
      t1.filter(_.data === v.bind).map(_.id).result.map(_ shouldBe Seq(1)),
      t1.filter(_.data =!= v.bind).map(_.id).result.map(_ shouldBe Nil)
    )
  }

  def testBoolean = {
    roundtrip[Boolean]("boolean_true", true) >>
    roundtrip[Boolean]("boolean_false", false)
  }

  def testUnit = {
    class T(tag: Tag) extends Table[Int](tag, "unit_t") {
      def id = column[Int]("id")
      def * = id
    }
    val ts = TableQuery[T]
    seq(
      ts.schema.create,
      ts += 42,
      ts.map(_ => ()).result.map(_ shouldBe Seq(())),
      ts.map(a => ((), a)).result.map(_ shouldBe Seq(((), 42))),
      ts.map(a => (a, ())).result.map(_ shouldBe Seq((42, ())))
    )
  }
}