func testAccessorOnStruct() {
  struct TestMacro: AccessorMacro {
    static func expansion(
      of node: AttributeSyntax,
      providingAccessorsOf declaration: some DeclSyntaxProtocol,
      in context: some MacroExpansionContext
    ) throws -> [AccessorDeclSyntax] {
      return []
    }
  }

  assertMacroExpansion(
    "@Test struct Foo {}",
    expandedSource: "struct Foo {}",
    macros: ["Test": TestMacro.self]
  )
}