56 lines
1.6 KiB
Plaintext
56 lines
1.6 KiB
Plaintext
(*
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* Copyright 2018, Data61
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* Commonwealth Scientific and Industrial Research Organisation (CSIRO)
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* ABN 41 687 119 230.
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* This software may be distributed and modified according to the terms of
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* the BSD 2-Clause license. Note that NO WARRANTY is provided.
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* See "LICENSE_BSD2.txt" for details.
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* @TAG(DATA61_BSD)
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*)
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(* Basic tests for the Insulin desugar tool. *)
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theory Insulin_Test
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imports
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Lib.Insulin
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Main
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begin
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ML \<open>
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(*
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* To be considered successful, desugaring should do two things:
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* - remove the unwanted syntax strings
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* - return an equivalent term
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* The following code just checks those two conditions.
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*)
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fun test_desugar ctxt (term, bad_strings) = let
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val text = (* function being tested *)
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Insulin.desugar_term ctxt term bad_strings
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(* strip markup from result *)
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|> YXML.parse_body
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|> XML.content_of
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val remaining_bads = filter (fn bs => String.isSubstring bs text) bad_strings
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val _ = if null remaining_bads then () else
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raise TERM ("failed to desugar these strings: [" ^ commas bad_strings ^ "]\n" ^
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"output: " ^ text, [term])
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val term' = Syntax.read_term ctxt text
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val _ = if term = term' then () else
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raise TERM ("desugared term not equal to original",
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[term, term'])
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in () end
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\<close>
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ML \<open>
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(* The test cases. *)
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[ (@{term "A \<and> B"}, ["\<and>"])
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, (@{term "a + 0 = a * 1"}, ["+", "0", "1"])
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, (@{term "(f(x := y)) z = (if z = x then y else f z)"}, [":="])
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, (@{term "(f(x := y)) z = (if z = x then y else f z)"}, ["="])
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] |> app (test_desugar @{context})
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\<close>
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end
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