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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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48
src/libstore/tests/common-protocol.cc
View file

@ -20,16 +20,9 @@ public:
* Golden test for `T` reading
*/
template<typename T>
void readTest(PathView testStem, T value)
void readProtoTest(PathView testStem, const T & expected)
{
if (testAccept())
{
GTEST_SKIP() << cannotReadGoldenMaster;
}
else
{
auto encoded = readFile(goldenMaster(testStem));
CharacterizationTest::readTest(testStem, [&](const auto & encoded) {
T got = ({
StringSource from { encoded };
CommonProto::Serialise<T>::read(
@ -37,44 +30,33 @@ public:
CommonProto::ReadConn { .from = from });
});
ASSERT_EQ(got, value);
}
ASSERT_EQ(got, expected);
});
}
/**
* Golden test for `T` write
*/
template<typename T>
void writeTest(PathView testStem, const T & value)
void writeProtoTest(PathView testStem, const T & decoded)
{
auto file = goldenMaster(testStem);
StringSink to;
CommonProto::write(
*store,
CommonProto::WriteConn { .to = to },
value);
if (testAccept())
{
createDirs(dirOf(file));
writeFile(file, to.s);
GTEST_SKIP() << updatingGoldenMaster;
}
else
{
auto expected = readFile(file);
ASSERT_EQ(to.s, expected);
}
CharacterizationTest::writeTest(testStem, [&]() -> std::string {
StringSink to;
CommonProto::Serialise<T>::write(
*store,
CommonProto::WriteConn { .to = to },
decoded);
return to.s;
});
}
};
#define CHARACTERIZATION_TEST(NAME, STEM, VALUE) \
TEST_F(CommonProtoTest, NAME ## _read) { \
readTest(STEM, VALUE); \
readProtoTest(STEM, VALUE); \
} \
TEST_F(CommonProtoTest, NAME ## _write) { \
writeTest(STEM, VALUE); \
writeProtoTest(STEM, VALUE); \
}
CHARACTERIZATION_TEST(