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Test that builtin functions don't throw #4555

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merged 12 commits into from
Apr 30, 2022
Merged

Test that builtin functions don't throw #4555

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74dcbc8
Test that builtin functions don't throw
zliu41 Apr 26, 2022
e61aafe
Use four spaces
zliu41 Apr 27, 2022
48ee475
Catch exceptions from evaluation
zliu41 Apr 27, 2022
4f93d04
Make genArg return Some (ValueOf uni))
zliu41 Apr 27, 2022
f60a53f
Add tests using arbitrary (not necessarily well-typed) Terms
zliu41 Apr 28, 2022
2e9ef6b
Move genValArg to testlib
zliu41 Apr 28, 2022
602fdde
Reorganize imports
zliu41 Apr 28, 2022
44090ca
Merge branch 'master' of github.com:input-output-hk/plutus into built…
zliu41 Apr 29, 2022
765e665
Replace genValArg with genConstant
zliu41 Apr 29, 2022
ebb8fbd
Use annotate
zliu41 Apr 29, 2022
2d2bc10
Add haddock
zliu41 Apr 29, 2022
cc80190
Merge branch 'master' of github.com:input-output-hk/plutus into built…
zliu41 Apr 30, 2022
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Add haddock
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@zliu41
zliu41 committed Apr 29, 2022
commit 2d2bc10b9519642eaae206ccf4c0584f388f4a61
9 changes: 9 additions & 0 deletions plutus-core/plutus-core/test/Evaluation/Spec.hs
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Expand Up @@ -39,6 +39,15 @@ test_builtinsDon'tThrow =
"Builtins don't throw"
$ fmap (\fun -> testProperty (display fun) $ prop_builtinsDon'tThrow fun) List.enumerate

-- | Evaluating a builtin function should never throw any exception (the evaluation is allowed
-- to fail with a `KnownTypeError`, of course).
--
-- The test covers both succeeding and failing evaluations and verifies that in either case
-- no exception is thrown. The failing cases use arbitrary `Term` arguments (which doesn't
-- guarantee failure, but most likely), and the succeeding cases generate `Term` arguments
-- based on a builtin function's `TypeScheme`. For `Opaque` arguments it generates arbitrary
-- `Term`s (which technically doesn't guarantee evaluation success, although it is the case
-- with all current builtin functions).
prop_builtinsDon'tThrow :: DefaultFun -> Property
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prop_builtinsDon'tThrow bn = property $ do
args <- forAllNoShow . Gen.choice $ [genArgsWellTyped bn, genArgsArbitrary bn]
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