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#include <gtest/gtest.h>
#include <string>
#include <string_view>
#include <optional>
#include <unistd.h>
#include <boost/algorithm/string/replace.hpp>
#include "test-session.hh"
#include "util.hh"
#include "tests/characterization.hh"
#include "tests/cli-literate-parser.hh"
#include "tests/terminal-code-eater.hh"
using namespace std::string_literals;
namespace nix {
static constexpr const char * REPL_PROMPT = "nix-repl> ";
// ASCII ENQ character
static constexpr const char * AUTOMATION_PROMPT = "\x05";
static std::string_view trimOutLog(std::string_view outLog)
{
const std::string trailer = "\n"s + AUTOMATION_PROMPT;
if (outLog.ends_with(trailer)) {
outLog.remove_suffix(trailer.length());
}
return outLog;
}
class ReplSessionTest : public CharacterizationTest
{
Path unitTestData = getUnitTestData();
public:
Path goldenMaster(std::string_view testStem) const override
{
return unitTestData + "/" + testStem;
}
void runReplTest(std::string_view const & content, std::vector<std::string> extraArgs = {}) const
{
auto syntax = CLILiterateParser::parse(REPL_PROMPT, content);
// FIXME: why does this need two --quiets
// show-trace is on by default due to test configuration, but is not a standard
Strings args{"--quiet", "repl", "--quiet", "--option", "show-trace", "false", "--offline", "--extra-experimental-features", "repl-automation"};
args.insert(args.end(), extraArgs.begin(), extraArgs.end());
auto nixBin = canonPath(getEnvNonEmpty("NIX_BIN_DIR").value_or(NIX_BIN_DIR));
auto process = RunningProcess::start(nixBin + "/nix", args);
auto session = TestSession{AUTOMATION_PROMPT, std::move(process)};
for (auto & bit : syntax) {
if (bit.kind != CLILiterateParser::NodeKind::COMMAND) {
continue;
}
if (!session.waitForPrompt()) {
ASSERT_TRUE(false);
}
session.runCommand(bit.text);
}
if (!session.waitForPrompt()) {
ASSERT_TRUE(false);
}
session.close();
auto replacedOutLog = boost::algorithm::replace_all_copy(session.outLog, unitTestData, "TEST_DATA");
auto cleanedOutLog = trimOutLog(replacedOutLog);
auto parsedOutLog = CLILiterateParser::parse(AUTOMATION_PROMPT, cleanedOutLog, 0);
parsedOutLog = CLILiterateParser::tidyOutputForComparison(std::move(parsedOutLog));
syntax = CLILiterateParser::tidyOutputForComparison(std::move(syntax));
ASSERT_EQ(parsedOutLog, syntax);
}
};
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();
});
writeTest("basic_tidied.ast", [this]() {
const std::string content = readFile(goldenMaster("basic.test"));
auto syntax = CLILiterateParser::parse(REPL_PROMPT, content);
syntax = CLILiterateParser::tidyOutputForComparison(std::move(syntax));
std::ostringstream out{};
for (auto & bit : syntax) {
out << bit.print() << "\n";
}
return out.str();
});
}
TEST_F(ReplSessionTest, repl_basic)
{
readTest("basic_repl.test", [this](std::string input) { runReplTest(input); });
}
#define DEBUGGER_TEST(name) \
TEST_F(ReplSessionTest, name) \
{ \
readTest(#name ".test", [this](std::string input) { \
runReplTest(input, {"--debugger", "-f", goldenMaster(#name ".nix")}); \
}); \
}
DEBUGGER_TEST(regression_9918);
DEBUGGER_TEST(regression_9917);
DEBUGGER_TEST(regression_l145);
DEBUGGER_TEST(stack_vars);
};
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