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Systematize characterization tests a bit more

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Deduplicating code moreover enforcing the pattern means:

 - It is easier to write new characterization tests because less boilerplate

 - It is harder to mess up new tests because there are fewer places to
   make mistakes.

Co-authored-by: Jacek Galowicz <jacek@galowicz.de>
This commit is contained in:
John Ericson 2023-11-01 11:15:21 -04:00
parent 1e61c007be
commit b107431816
6 changed files with 183 additions and 183 deletions
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116
src/libstore/tests/derivation.cc
View file

@ -11,20 +11,20 @@ namespace nix {
using nlohmann::json;
class DerivationTest : public LibStoreTest
class DerivationTest : public CharacterizationTest, public LibStoreTest
{
Path unitTestData = getUnitTestData() + "/libstore/derivation";
public:
Path goldenMaster(std::string_view testStem) const override {
return unitTestData + "/" + testStem;
}
/**
* We set these in tests rather than the regular globals so we don't have
* to worry about race conditions if the tests run concurrently.
*/
ExperimentalFeatureSettings mockXpSettings;
Path unitTestData = getUnitTestData() + "/libstore/derivation";
Path goldenMaster(std::string_view testStem) {
return unitTestData + "/" + testStem;
}
};
class CaDerivationTest : public DerivationTest
@ -73,14 +73,8 @@ TEST_F(DynDerivationTest, BadATerm_oldVersionDynDeps) {
#define TEST_JSON(FIXTURE, NAME, VAL, DRV_NAME, OUTPUT_NAME) \
TEST_F(FIXTURE, DerivationOutput_ ## NAME ## _from_json) { \
if (testAccept()) \
{ \
GTEST_SKIP() << cannotReadGoldenMaster; \
} \
else \
{ \
auto encoded = json::parse( \
readFile(goldenMaster("output-" #NAME ".json"))); \
readTest("output-" #NAME ".json", [&](const auto & encoded_) { \
auto encoded = json::parse(encoded_); \
DerivationOutput got = DerivationOutput::fromJSON( \
*store, \
DRV_NAME, \
@ -89,28 +83,20 @@ TEST_F(DynDerivationTest, BadATerm_oldVersionDynDeps) {
mockXpSettings); \
DerivationOutput expected { VAL }; \
ASSERT_EQ(got, expected); \
} \
}); \
} \
\
TEST_F(FIXTURE, DerivationOutput_ ## NAME ## _to_json) { \
auto file = goldenMaster("output-" #NAME ".json"); \
\
json got = DerivationOutput { VAL }.toJSON( \
*store, \
DRV_NAME, \
OUTPUT_NAME); \
\
if (testAccept()) \
{ \
createDirs(dirOf(file)); \
writeFile(file, got.dump(2) + "\n"); \
GTEST_SKIP() << updatingGoldenMaster; \
} \
else \
{ \
auto expected = json::parse(readFile(file)); \
ASSERT_EQ(got, expected); \
} \
writeTest<json>("output-" #NAME ".json", [&]() -> json { \
return DerivationOutput { (VAL) }.toJSON( \
*store, \
(DRV_NAME), \
(OUTPUT_NAME)); \
}, [](const auto & file) { \
return json::parse(readFile(file)); \
}, [](const auto & file, const auto & got) { \
return writeFile(file, got.dump(2) + "\n"); \
}); \
}
TEST_JSON(DerivationTest, inputAddressed,
@ -167,50 +153,30 @@ TEST_JSON(ImpureDerivationTest, impure,
#define TEST_JSON(FIXTURE, NAME, VAL) \
TEST_F(FIXTURE, Derivation_ ## NAME ## _from_json) { \
if (testAccept()) \
{ \
GTEST_SKIP() << cannotReadGoldenMaster; \
} \
else \
{ \
auto encoded = json::parse( \
readFile(goldenMaster( #NAME ".json"))); \
readTest(#NAME ".json", [&](const auto & encoded_) { \
auto encoded = json::parse(encoded_); \
Derivation expected { VAL }; \
Derivation got = Derivation::fromJSON( \
*store, \
encoded, \
mockXpSettings); \
ASSERT_EQ(got, expected); \
} \
}); \
} \
\
TEST_F(FIXTURE, Derivation_ ## NAME ## _to_json) { \
auto file = goldenMaster( #NAME ".json"); \
\
json got = Derivation { VAL }.toJSON(*store); \
\
if (testAccept()) \
{ \
createDirs(dirOf(file)); \
writeFile(file, got.dump(2) + "\n"); \
GTEST_SKIP() << updatingGoldenMaster; \
} \
else \
{ \
auto expected = json::parse(readFile(file)); \
ASSERT_EQ(got, expected); \
} \
writeTest<json>(#NAME ".json", [&]() -> json { \
return Derivation { VAL }.toJSON(*store); \
}, [](const auto & file) { \
return json::parse(readFile(file)); \
}, [](const auto & file, const auto & got) { \
return writeFile(file, got.dump(2) + "\n"); \
}); \
}
#define TEST_ATERM(FIXTURE, NAME, VAL, DRV_NAME) \
TEST_F(FIXTURE, Derivation_ ## NAME ## _from_aterm) { \
if (testAccept()) \
{ \
GTEST_SKIP() << cannotReadGoldenMaster; \
} \
else \
{ \
auto encoded = readFile(goldenMaster( #NAME ".drv")); \
readTest(#NAME ".drv", [&](auto encoded) { \
Derivation expected { VAL }; \
auto got = parseDerivation( \
*store, \
@ -219,25 +185,13 @@ TEST_JSON(ImpureDerivationTest, impure,
mockXpSettings); \
ASSERT_EQ(got.toJSON(*store), expected.toJSON(*store)) ; \
ASSERT_EQ(got, expected); \
} \
}); \
} \
\
TEST_F(FIXTURE, Derivation_ ## NAME ## _to_aterm) { \
auto file = goldenMaster( #NAME ".drv"); \
\
auto got = (VAL).unparse(*store, false); \
\
if (testAccept()) \
{ \
createDirs(dirOf(file)); \
writeFile(file, got); \
GTEST_SKIP() << updatingGoldenMaster; \
} \
else \
{ \
auto expected = readFile(file); \
ASSERT_EQ(got, expected); \
} \
writeTest(#NAME ".drv", [&]() -> std::string { \
return (VAL).unparse(*store, false); \
}); \
}
Derivation makeSimpleDrv(const Store & store) {