47 lines
1.4 KiB
C++
47 lines
1.4 KiB
C++
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#include "lix/libexpr/attr-path.hh"
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#include "lix/libexpr/attr-set.hh"
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#include "tests/libexpr.hh"
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#include <gtest/gtest.h>
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#include <rapidcheck/gen/Arbitrary.h>
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#include <rapidcheck/gen/Container.h>
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#include <rapidcheck/gen/Predicate.h>
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#include <rapidcheck/gtest.h>
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namespace nix {
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class AttrPathEval : public LibExprTest
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{
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public:
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std::pair<Value *, PosIdx> testFindAlongAttrPath(std::string expr, std::string path);
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};
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RC_GTEST_PROP(AttrPath, prop_round_trip, ())
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{
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auto strings = *rc::gen::container<std::vector<std::string>>(
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rc::gen::container<std::string>(rc::gen::distinctFrom('"'))
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);
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auto const unparsed = unparseAttrPath(strings);
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auto const unparsedReparsed = parseAttrPath(unparsed);
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RC_ASSERT(strings == unparsedReparsed);
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}
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std::pair<Value *, PosIdx> AttrPathEval::testFindAlongAttrPath(std::string expr, std::string path)
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{
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auto v = eval(expr);
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auto bindings = evalState().ctx.buildBindings(0).finish();
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return findAlongAttrPath(state, path, *bindings, v);
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}
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// n.b. I do not know why we throw for empty attrs but they are apparently
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// disallowed.
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TEST_F(AttrPathEval, emptyAttrsThrows)
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{
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std::string expr = "{a.\"\".b = 2;}";
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ASSERT_NO_THROW(testFindAlongAttrPath(expr, "a"));
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ASSERT_THROW(testFindAlongAttrPath(expr, "a.\"\".b"), Error);
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ASSERT_THROW(testFindAlongAttrPath(expr, "a.\"\""), Error);
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}
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}
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