(.using
 [library
  [lux (.except)
   ["_" test (.only Test)]
   ["[0]" meta]
   [abstract
    [monad (.only do)]]
   [control
    ["[0]" try]
    ["[0]" exception]
    [parser
     ["<[0]>" code]]]
   [data
    ["[0]" text (.open: "[1]#[0]" equivalence)]]
   ["[0]" macro (.only)
    [syntax (.only syntax)]
    ["[0]" code]
    ["[0]" template]]
   ["[0]" math (.only)
    ["[0]" random]
    [number
     ["n" nat]]]]]
 [\\library
  ["[0]" /]])

(template.with_locals [g!Foo g!Bar]
  (these (with_template [<syntax> <meta>]
           [(def <syntax>
              (syntax (_ [])
                (do meta.monad
                  [frame <meta>]
                  (in (list (code.text (the /.#name frame)))))))]

           [current /.current]
           [specific (/.specific (template.text [g!Foo]))]
           )

         (def with_no_active_frames
           (syntax (_ [macro <code>.any])
             (function (_ compiler)
               (let [verdict (case ((macro.expansion macro) compiler)
                               {try.#Failure error}
                               (exception.match? /.no_active_frames error)
                               
                               {try.#Success _}
                               false)]
                 {try.#Success [compiler (list (code.bit verdict))]}))))

         (with_expansions [no_current! (..with_no_active_frames (..current))
                           no_specific! (..with_no_active_frames (..specific))]
           (/.primitive (g!Foo a)
             Text

             (/.primitive (g!Bar a)
               Nat

               (def .public test
                 Test
                 (<| (_.covering /._)
                     (_.for [/.primitive])
                     (do random.monad
                       [expected_foo (random.lower_case 5)
                        expected_bar random.nat]
                       (all _.and
                            (_.coverage [/.abstraction]
                              (and (exec (is (g!Foo Text)
                                             (/.abstraction g!Foo expected_foo))
                                     true)
                                   (exec (is (g!Bar Text)
                                             (/.abstraction expected_bar))
                                     true)))
                            (_.coverage [/.representation]
                              (and (|> expected_foo
                                       (/.abstraction g!Foo)
                                       (is (g!Foo Bit))
                                       (/.representation g!Foo)
                                       (text#= expected_foo))
                                   (|> (/.abstraction expected_bar)
                                       (is (g!Bar Bit))
                                       /.representation
                                       (n.= expected_bar))))
                            (_.coverage [/.transmutation]
                              (and (exec (|> expected_foo
                                             (/.abstraction g!Foo)
                                             (is (g!Foo .Macro))
                                             (/.transmutation g!Foo)
                                             (is (g!Foo .Lux)))
                                     true)
                                   (exec (|> (/.abstraction expected_bar)
                                             (is (g!Bar .Macro))
                                             /.transmutation
                                             (is (g!Bar .Lux)))
                                     true)))
                            (_.for [/.Frame]
                                   (all _.and
                                        (_.coverage [/.current]
                                          (text#= (template.text [g!Bar])
                                                  (..current)))
                                        (_.coverage [/.specific]
                                          (text#= (template.text [g!Foo])
                                                  (..specific)))
                                        (_.coverage [/.no_active_frames]
                                          (and no_current!
                                               no_specific!))
                                        ))
                            )))))))))