added tests for selector constructors

Author: ghik

tests/run-macros/i21225.check

@@ -0,0 +1,2 @@
+bar codec
+foo codec

tests/run-macros/i21225/Macro_1.scala

@@ -0,0 +1,33 @@
+//> using options -experimental
+
+import scala.quoted.*
+
+trait Codec[-T] { def print(): Unit }
+object Codec {
+  inline def derivedWithDeps[T](deps: Any): Codec[T] = ${derivedWithDepsImpl[T]('deps)}
+
+  private def derivedWithDepsImpl[T](deps: Expr[Any])(using q: Quotes)(using Type[T]): Expr[Codec[T]] = {
+    import q.reflect.*
+
+    val givenSelector: Selector = GivenSelector(None)
+    val theImport = Import(deps.asTerm, List(givenSelector))
+    Block(List(theImport), '{scala.compiletime.summonInline[Codec[T]]}.asTerm).asExprOf[Codec[T]]
+    /* import deps.given
+     * summonInline[Codec[T]]
+     */
+  }
+
+  inline def derivedWithDepsWithNamedOmitted[T](deps: Any): Codec[T] = ${derivedWithDepsWithNamedOmittedImpl[T]('deps)}
+
+  private def derivedWithDepsWithNamedOmittedImpl[T](deps: Expr[Any])(using q: Quotes)(using Type[T]): Expr[Codec[T]] = {
+    import q.reflect.*
+
+    val givenSelector: Selector = GivenSelector(None)
+    val omitSelector: Selector = OmitSelector("named")
+    val theImport = Import(deps.asTerm, List(givenSelector, omitSelector))
+    Block(List(theImport), '{scala.compiletime.summonInline[Codec[T]]}.asTerm).asExprOf[Codec[T]]
+    /* import deps.{given, named => _}
+     * summonInline[Codec[T]]
+     */
+  }
+}

tests/run-macros/i21225/Test_2.scala

@@ -0,0 +1,14 @@
+//> using options -experimental
+
+import scala.quoted.*
+
+sealed trait Foo
+class Bar extends Foo
+object CustomCodecs {
+  given named: Codec[Bar] = new Codec[Bar] { def print(): Unit = println("bar codec")}
+  given Codec[Foo] = new Codec[Foo] { def print(): Unit = println("foo codec") }
+}
+
+@main def Test =
+  Codec.derivedWithDeps[Bar](CustomCodecs).print()
+  Codec.derivedWithDepsWithNamedOmitted[Bar](CustomCodecs).print()