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#include "libexpr/attr-set.hh"
#include <cstdio>
#include <optional>
#include <string>
#include <vector>
#include <bits/stdint-intn.h>
#include <gc/gc_cpp.h>
#include <gtest/gtest.h>
#include <rapidcheck.h>
#include <rapidcheck/Assertions.h>
#include <rapidcheck/gen/Arbitrary.h>
#include <rapidcheck/gen/Build.h>
#include <rapidcheck/gen/Create.h>
#include <rapidcheck/gen/Transform.h>
#include <rapidcheck/gtest.h>
#include "libexpr/eval.hh"
#include "libexpr/nixexpr.hh"
#include "libexpr/symbol-table.hh"
#include "libexpr/value.hh"
#include "tests/dummy-store.hh"
static nix::SymbolTable* symbol_table;
namespace rc {
using nix::Pos;
using nix::Value;
// TODO(grfn): These arbitrary implementations should be pulled out to a util
// file sooner rather than later
template <>
struct Arbitrary<nix::Symbol> {
static Gen<nix::Symbol> arbitrary() {
return gen::map(gen::arbitrary<std::string>(),
[](std::string s) { return symbol_table->Create(s); });
}
};
template <>
struct Arbitrary<Value> {
static Gen<nix::Value> arbitrary() {
return gen::build(gen::construct<Value>(),
// TODO(grfn) generalize to more types
gen::set(&Value::type, gen::just(nix::ValueType::tInt)),
gen::set(&Value::integer, gen::arbitrary<int64_t>()));
}
};
template <>
struct Arbitrary<Value*> {
static Gen<nix::Value*> arbitrary() {
return gen::apply(
[](nix::ValueType typ, int i) {
auto ret = new (GC) Value();
ret->type = typ;
ret->integer = i;
return ret;
},
gen::just(nix::ValueType::tInt), gen::arbitrary<int64_t>());
}
};
template <>
struct Arbitrary<nix::Pos> {
static Gen<nix::Pos> arbitrary() {
return gen::construct<nix::Pos>(gen::arbitrary<nix::Symbol>(),
gen::arbitrary<unsigned int>(),
gen::arbitrary<unsigned int>());
}
};
template <>
struct Arbitrary<nix::Pos*> {
static Gen<nix::Pos*> arbitrary() {
return gen::apply(
[](unsigned int line, unsigned int column) {
return new (GC) Pos({}, line, column);
},
gen::arbitrary<unsigned int>(), gen::arbitrary<unsigned int>());
}
};
template <>
struct Arbitrary<nix::Attr> {
static Gen<nix::Attr> arbitrary() {
return gen::construct<nix::Attr>(gen::arbitrary<nix::Symbol>(),
gen::arbitrary<Value*>(),
gen::arbitrary<nix::Pos*>());
}
};
template <>
struct Arbitrary<nix::Bindings> {
static Gen<nix::Bindings> arbitrary() {
return gen::map(gen::arbitrary<std::vector<nix::Attr>>(), [](auto attrs) {
nix::Bindings res;
for (const auto& attr : attrs) {
res.push_back(attr);
}
return res;
});
}
};
} // namespace rc
namespace nix {
using nix::tests::DummyStore;
class AttrSetTest : public ::testing::Test {
protected:
EvalState* eval_state_{};
void SetUp() override {
nix::initGC();
auto store = std::make_shared<DummyStore>();
eval_state_ = new EvalState({"."}, ref<Store>(store));
symbol_table = &eval_state_->symbols;
}
void assert_bindings_equal(nix::Bindings& lhs, nix::Bindings& rhs) {
Value lhs_val{};
Value rhs_val{};
lhs_val.type = rhs_val.type = ValueType::tAttrs;
lhs_val.attrs = &lhs;
rhs_val.attrs = &lhs;
RC_ASSERT(eval_state_->eqValues(lhs_val, rhs_val));
}
};
class AttrSetMonoidTest : public AttrSetTest {};
RC_GTEST_FIXTURE_PROP(AttrSetMonoidTest, mergeLeftIdentity,
(nix::Bindings && bindings)) {
auto empty_bindings = nix::Bindings::NewGC();
auto result = *Bindings::Merge(*empty_bindings, bindings);
assert_bindings_equal(result, bindings);
}
RC_GTEST_FIXTURE_PROP(AttrSetMonoidTest, mergeRightIdentity,
(nix::Bindings && bindings)) {
auto empty_bindings = nix::Bindings::NewGC();
auto result = *Bindings::Merge(bindings, *empty_bindings);
assert_bindings_equal(result, bindings);
}
RC_GTEST_FIXTURE_PROP(AttrSetMonoidTest, mergeAssociative,
(nix::Bindings && bindings_1, nix::Bindings&& bindings_2,
nix::Bindings&& bindings_3)) {
assert_bindings_equal(
*Bindings::Merge(bindings_1, *Bindings::Merge(bindings_2, bindings_3)),
*Bindings::Merge(*Bindings::Merge(bindings_1, bindings_2), bindings_3));
}
} // namespace nix
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