eldritch horrors
db35aa753b
with thunk state being shareable we no longer need to worry about value uniqueness, only about value lifetime. this means we can liberally drop indirections and allocations, passing references instead of pointers or using stack memory instead of gc-managed memory for some intermediates. Change-Id: I2d48a6fd57a376d544bd9bd2d05e5420611986d1
50 lines
1.5 KiB
C++
50 lines
1.5 KiB
C++
#include "lix/libexpr/attr-path.hh"
|
|
#include "lix/libexpr/attr-set.hh"
|
|
#include "tests/libexpr.hh"
|
|
#include <gtest/gtest.h>
|
|
#pragma GCC diagnostic push
|
|
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
|
|
#include <rapidcheck/gen/Arbitrary.h>
|
|
#include <rapidcheck/gen/Container.h>
|
|
#include <rapidcheck/gen/Predicate.h>
|
|
#include <rapidcheck/gtest.h>
|
|
#pragma GCC diagnostic pop
|
|
|
|
namespace nix {
|
|
|
|
class AttrPathEval : public LibExprTest
|
|
{
|
|
public:
|
|
std::pair<Value, PosIdx> testFindAlongAttrPath(std::string expr, std::string path);
|
|
};
|
|
|
|
RC_GTEST_PROP(AttrPath, prop_round_trip, ())
|
|
{
|
|
auto strings = *rc::gen::container<std::vector<std::string>>(
|
|
rc::gen::container<std::string>(rc::gen::distinctFrom('"'))
|
|
);
|
|
auto const unparsed = unparseAttrPath(strings);
|
|
auto const unparsedReparsed = parseAttrPath(unparsed);
|
|
|
|
RC_ASSERT(strings == unparsedReparsed);
|
|
}
|
|
|
|
std::pair<Value, PosIdx> AttrPathEval::testFindAlongAttrPath(std::string expr, std::string path)
|
|
{
|
|
auto v = eval(expr);
|
|
auto bindings = evalState().ctx.buildBindings(0).finish();
|
|
return findAlongAttrPath(state, path, *bindings, v);
|
|
}
|
|
|
|
// n.b. I do not know why we throw for empty attrs but they are apparently
|
|
// disallowed.
|
|
TEST_F(AttrPathEval, emptyAttrsThrows)
|
|
{
|
|
std::string expr = "{a.\"\".b = 2;}";
|
|
ASSERT_NO_THROW(testFindAlongAttrPath(expr, "a"));
|
|
ASSERT_THROW(testFindAlongAttrPath(expr, "a.\"\".b"), Error);
|
|
ASSERT_THROW(testFindAlongAttrPath(expr, "a.\"\""), Error);
|
|
}
|
|
|
|
}
|