add test for ordinal and fromProduct

Author: bishabosha

tests/run/i10997.scala

@@ -0,0 +1,37 @@
+class ClassWrapper {
+
+  sealed trait Parent
+  case class Foo(x: Int, y: Int, s: String) extends Parent
+  case class Bar(x: Int, y: Int) extends Parent
+  case object Qux extends Parent
+
+  def testcase(): Unit =
+
+    val mirrorParent = summon[deriving.Mirror.Of[Parent]]
+    val mirrorFoo    = summon[deriving.Mirror.Of[Foo]]
+    val mirrorBar    = summon[deriving.Mirror.Of[Bar]]
+    val mirrorQux    = summon[deriving.Mirror.Of[Qux.type]]
+
+    val fooShapedTuple: (Int, Int, String) = (23, 47, "ok")
+    val barShapedTuple: (Int, Int)         = (57, 71)
+    val quxShapedTuple: EmptyTuple         = EmptyTuple
+
+    val foo: Foo      = mirrorFoo.fromProduct(fooShapedTuple)
+    val bar: Bar      = mirrorBar.fromProduct(barShapedTuple)
+    val qux: Qux.type = mirrorQux.fromProduct(quxShapedTuple)
+
+    assert(foo == Foo(23, 47, "ok"))
+    assert(bar == Bar(57, 71))
+    assert(qux == Qux)
+
+    val fooOrd = mirrorParent.ordinal(foo)
+    val barOrd = mirrorParent.ordinal(bar)
+    val quxOrd = mirrorParent.ordinal(qux)
+
+    assert(fooOrd == 0)
+    assert(barOrd == 1)
+    assert(quxOrd == 2)
+}
+
+@main def Test =
+  ClassWrapper().testcase()