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1ad13a1423
As discussed today at great length in the Nix meeting, we don't want to break the format, but we also don't want to impede the improvement of JSON formats. The solution is to add a new flag for control the output format. Note that prior to the release, we may want to replace `--json --json-format N` with `--json=N`, but this is being left for a separate PR, as we don't yet have `=` support for CLI flags.
131 lines
5.5 KiB
C++
131 lines
5.5 KiB
C++
#include <nlohmann/json.hpp>
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#include <gtest/gtest.h>
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#include "nix/store/path-info.hh"
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#include "nix/store/nar-info.hh"
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#include "nix/util/tests/characterization.hh"
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#include "nix/store/tests/libstore.hh"
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namespace nix {
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using nlohmann::json;
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class NarInfoTestV1 : public CharacterizationTest, public LibStoreTest
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{
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std::filesystem::path unitTestData = getUnitTestData() / "nar-info" / "json-1";
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std::filesystem::path goldenMaster(PathView testStem) const override
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{
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return unitTestData / (testStem + ".json");
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}
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};
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class NarInfoTestV2 : public CharacterizationTest, public LibStoreTest
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{
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std::filesystem::path unitTestData = getUnitTestData() / "nar-info" / "json-2";
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std::filesystem::path goldenMaster(PathView testStem) const override
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{
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return unitTestData / (testStem + ".json");
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}
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};
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static NarInfo makeNarInfo(const Store & store, bool includeImpureInfo)
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{
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auto info = NarInfo::makeFromCA(
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store,
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"foo",
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FixedOutputInfo{
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.method = FileIngestionMethod::NixArchive,
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.hash = hashString(HashAlgorithm::SHA256, "(...)"),
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.references =
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{
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.others =
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{
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StorePath{
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"g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-bar",
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},
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},
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.self = true,
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},
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},
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Hash::parseSRI("sha256-FePFYIlMuycIXPZbWi7LGEiMmZSX9FMbaQenWBzm1Sc="));
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info.narSize = 34878;
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if (includeImpureInfo) {
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info.deriver = StorePath{
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"g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-bar.drv",
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};
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info.registrationTime = 23423;
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info.ultimate = true;
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info.sigs = {"asdf", "qwer"};
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info.url = "nar/1w1fff338fvdw53sqgamddn1b2xgds473pv6y13gizdbqjv4i5p3.nar.xz";
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info.compression = "xz";
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info.fileHash = Hash::parseSRI("sha256-FePFYIlMuycIXPZbWi7LGEiMmZSX9FMbaQenWBzm1Sc=");
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info.fileSize = 4029176;
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}
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return info;
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}
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#define JSON_READ_TEST_V1(STEM, PURE) \
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TEST_F(NarInfoTestV1, NarInfo_##STEM##_from_json) \
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{ \
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readTest(#STEM, [&](const auto & encoded_) { \
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auto encoded = json::parse(encoded_); \
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auto expected = makeNarInfo(*store, PURE); \
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auto got = UnkeyedNarInfo::fromJSON(&*store, encoded); \
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ASSERT_EQ(got, expected); \
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}); \
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}
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#define JSON_WRITE_TEST_V1(STEM, PURE) \
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TEST_F(NarInfoTestV1, NarInfo_##STEM##_to_json) \
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{ \
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writeTest( \
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#STEM, \
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[&]() -> json { return makeNarInfo(*store, PURE).toJSON(&*store, PURE, PathInfoJsonFormat::V1); }, \
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[](const auto & file) { return json::parse(readFile(file)); }, \
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[](const auto & file, const auto & got) { return writeFile(file, got.dump(2) + "\n"); }); \
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}
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#define JSON_TEST_V1(STEM, PURE) \
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JSON_READ_TEST_V1(STEM, PURE) \
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JSON_WRITE_TEST_V1(STEM, PURE)
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#define JSON_READ_TEST_V2(STEM, PURE) \
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TEST_F(NarInfoTestV2, NarInfo_##STEM##_from_json) \
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{ \
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readTest(#STEM, [&](const auto & encoded_) { \
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auto encoded = json::parse(encoded_); \
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auto expected = makeNarInfo(*store, PURE); \
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auto got = UnkeyedNarInfo::fromJSON(nullptr, encoded); \
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ASSERT_EQ(got, expected); \
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}); \
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}
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#define JSON_WRITE_TEST_V2(STEM, PURE) \
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TEST_F(NarInfoTestV2, NarInfo_##STEM##_to_json) \
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{ \
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writeTest( \
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#STEM, \
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[&]() -> json { return makeNarInfo(*store, PURE).toJSON(nullptr, PURE, PathInfoJsonFormat::V2); }, \
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[](const auto & file) { return json::parse(readFile(file)); }, \
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[](const auto & file, const auto & got) { return writeFile(file, got.dump(2) + "\n"); }); \
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}
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#define JSON_TEST_V2(STEM, PURE) \
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JSON_READ_TEST_V2(STEM, PURE) \
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JSON_WRITE_TEST_V2(STEM, PURE)
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JSON_TEST_V1(pure, false)
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JSON_TEST_V1(impure, true)
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// Test that JSON without explicit version field parses as V1
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JSON_READ_TEST_V1(pure_noversion, false)
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JSON_TEST_V2(pure, false)
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JSON_TEST_V2(impure, true)
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} // namespace nix
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