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Make per-variant Arbitrary impls too

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This is a nice idea that @roberth requested. If we could factor our a
generic `std::variant` impl as a follow-up it would be even better!
This commit is contained in:
John Ericson 2023-01-30 10:55:08 -05:00
parent ecd3e4ebd7
commit 560142fec0
4 changed files with 67 additions and 17 deletions
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24
src/libstore/tests/derived-path.cc
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@ -10,18 +10,28 @@
namespace rc {
using namespace nix;
Gen<DerivedPath::Opaque> Arbitrary<DerivedPath::Opaque>::arbitrary()
{
return gen::just(DerivedPath::Opaque {
.path = *gen::arbitrary<StorePath>(),
});
}
Gen<DerivedPath::Built> Arbitrary<DerivedPath::Built>::arbitrary()
{
return gen::just(DerivedPath::Built {
.drvPath = *gen::arbitrary<StorePath>(),
.outputs = *gen::arbitrary<OutputsSpec>(),
});
}
Gen<DerivedPath> Arbitrary<DerivedPath>::arbitrary()
{
switch (*gen::inRange<uint8_t>(0, 1)) {
case 0:
return gen::just((DerivedPath) DerivedPath::Opaque {
.path = *gen::arbitrary<StorePath>(),
});
return gen::just<DerivedPath>(*gen::arbitrary<DerivedPath::Opaque>());
default:
return gen::just((DerivedPath) DerivedPath::Built {
.drvPath = *gen::arbitrary<StorePath>(),
.outputs = *gen::arbitrary<OutputsSpec>(),
});
return gen::just<DerivedPath>(*gen::arbitrary<DerivedPath::Built>());
}
}