lix/tests/functional/repl_characterization/repl_characterization.cc
jade ed95b02215 Implement a parser for a literate testing system for the repl
This parser can be reused for other purposes. It's inspired by
https://bitheap.org/cram/

Although eelco's impostor exists https://github.com/mobusoperandi/eelco,
it is not very nice to depend on out of tree testing frameworks with no
way to customize them.

Change-Id: Ifca50177e09730182baf0ebf829c3505bbb0274a
2024-03-13 15:46:55 -07:00

43 lines
932 B
C++

#include <gtest/gtest.h>
#include <string>
#include <string_view>
#include <optional>
#include <unistd.h>
#include "tests/characterization.hh"
#include "tests/cli-literate-parser.hh"
using namespace std::string_literals;
namespace nix {
static constexpr const char * REPL_PROMPT = "nix-repl> ";
class ReplSessionTest : public CharacterizationTest
{
Path unitTestData = getUnitTestData();
public:
Path goldenMaster(std::string_view testStem) const override
{
return unitTestData + "/" + testStem;
}
};
TEST_F(ReplSessionTest, parses)
{
writeTest("basic.ast", [this]() {
const std::string content = readFile(goldenMaster("basic.test"));
auto parser = CLILiterateParser{REPL_PROMPT};
parser.feed(content);
std::ostringstream out{};
for (auto & bit : parser.syntax()) {
out << bit.print() << "\n";
}
return out.str();
});
}
};