nix/tests/unit/libstore/serve-protocol.cc
John Ericson f71b4da0b3 Factor our connection code for worker proto like serve proto
This increases test coverage, and gets the worker protocol ready to be
used by Hydra.

Why don't we just try to use the store interface in Hydra? Well, the
problem is that the store interface works on connection pools, with each
opreation getting potentially a different connection, but the way temp
roots work requires that we keep one logical "transaction" (temp root
session) using the same connection.

The longer-term solution probably is making connections themselves
implement the store interface, but that is something that builds on
this, so I feel OK that this is not churn in the wrong direction.

Fixes #9584
2024-05-27 00:43:46 -04:00

517 lines
16 KiB
C++

#include <thread>
#include <regex>
#include <nlohmann/json.hpp>
#include <gtest/gtest.h>
#include "serve-protocol.hh"
#include "serve-protocol-impl.hh"
#include "serve-protocol-connection.hh"
#include "build-result.hh"
#include "file-descriptor.hh"
#include "tests/protocol.hh"
#include "tests/characterization.hh"
namespace nix {
const char serveProtoDir[] = "serve-protocol";
struct ServeProtoTest : VersionedProtoTest<ServeProto, serveProtoDir>
{
/**
* For serializers that don't care about the minimum version, we
* used the oldest one: 1.0.
*/
ServeProto::Version defaultVersion = 2 << 8 | 0;
};
VERSIONED_CHARACTERIZATION_TEST(
ServeProtoTest,
string,
"string",
defaultVersion,
(std::tuple<std::string, std::string, std::string, std::string, std::string> {
"",
"hi",
"white rabbit",
"大白兔",
"oh no \0\0\0 what was that!",
}))
VERSIONED_CHARACTERIZATION_TEST(
ServeProtoTest,
storePath,
"store-path",
defaultVersion,
(std::tuple<StorePath, StorePath> {
StorePath { "g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-foo" },
StorePath { "g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-foo-bar" },
}))
VERSIONED_CHARACTERIZATION_TEST(
ServeProtoTest,
contentAddress,
"content-address",
defaultVersion,
(std::tuple<ContentAddress, ContentAddress, ContentAddress> {
ContentAddress {
.method = TextIngestionMethod {},
.hash = hashString(HashAlgorithm::SHA256, "Derive(...)"),
},
ContentAddress {
.method = FileIngestionMethod::Flat,
.hash = hashString(HashAlgorithm::SHA1, "blob blob..."),
},
ContentAddress {
.method = FileIngestionMethod::Recursive,
.hash = hashString(HashAlgorithm::SHA256, "(...)"),
},
}))
VERSIONED_CHARACTERIZATION_TEST(
ServeProtoTest,
drvOutput,
"drv-output",
defaultVersion,
(std::tuple<DrvOutput, DrvOutput> {
{
.drvHash = Hash::parseSRI("sha256-FePFYIlMuycIXPZbWi7LGEiMmZSX9FMbaQenWBzm1Sc="),
.outputName = "baz",
},
DrvOutput {
.drvHash = Hash::parseSRI("sha256-b4afnqKCO9oWXgYHb9DeQ2berSwOjS27rSd9TxXDc/U="),
.outputName = "quux",
},
}))
VERSIONED_CHARACTERIZATION_TEST(
ServeProtoTest,
realisation,
"realisation",
defaultVersion,
(std::tuple<Realisation, Realisation> {
Realisation {
.id = DrvOutput {
.drvHash = Hash::parseSRI("sha256-FePFYIlMuycIXPZbWi7LGEiMmZSX9FMbaQenWBzm1Sc="),
.outputName = "baz",
},
.outPath = StorePath { "g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-foo" },
.signatures = { "asdf", "qwer" },
},
Realisation {
.id = {
.drvHash = Hash::parseSRI("sha256-FePFYIlMuycIXPZbWi7LGEiMmZSX9FMbaQenWBzm1Sc="),
.outputName = "baz",
},
.outPath = StorePath { "g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-foo" },
.signatures = { "asdf", "qwer" },
.dependentRealisations = {
{
DrvOutput {
.drvHash = Hash::parseSRI("sha256-b4afnqKCO9oWXgYHb9DeQ2berSwOjS27rSd9TxXDc/U="),
.outputName = "quux",
},
StorePath { "g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-foo" },
},
},
},
}))
VERSIONED_CHARACTERIZATION_TEST(
ServeProtoTest,
buildResult_2_2,
"build-result-2.2",
2 << 8 | 2,
({
using namespace std::literals::chrono_literals;
std::tuple<BuildResult, BuildResult, BuildResult> t {
BuildResult {
.status = BuildResult::OutputRejected,
.errorMsg = "no idea why",
},
BuildResult {
.status = BuildResult::NotDeterministic,
.errorMsg = "no idea why",
},
BuildResult {
.status = BuildResult::Built,
},
};
t;
}))
VERSIONED_CHARACTERIZATION_TEST(
ServeProtoTest,
buildResult_2_3,
"build-result-2.3",
2 << 8 | 3,
({
using namespace std::literals::chrono_literals;
std::tuple<BuildResult, BuildResult, BuildResult> t {
BuildResult {
.status = BuildResult::OutputRejected,
.errorMsg = "no idea why",
},
BuildResult {
.status = BuildResult::NotDeterministic,
.errorMsg = "no idea why",
.timesBuilt = 3,
.isNonDeterministic = true,
.startTime = 30,
.stopTime = 50,
},
BuildResult {
.status = BuildResult::Built,
.startTime = 30,
.stopTime = 50,
},
};
t;
}))
VERSIONED_CHARACTERIZATION_TEST(
ServeProtoTest,
buildResult_2_6,
"build-result-2.6",
2 << 8 | 6,
({
using namespace std::literals::chrono_literals;
std::tuple<BuildResult, BuildResult, BuildResult> t {
BuildResult {
.status = BuildResult::OutputRejected,
.errorMsg = "no idea why",
},
BuildResult {
.status = BuildResult::NotDeterministic,
.errorMsg = "no idea why",
.timesBuilt = 3,
.isNonDeterministic = true,
.startTime = 30,
.stopTime = 50,
},
BuildResult {
.status = BuildResult::Built,
.timesBuilt = 1,
.builtOutputs = {
{
"foo",
{
.id = DrvOutput {
.drvHash = Hash::parseSRI("sha256-b4afnqKCO9oWXgYHb9DeQ2berSwOjS27rSd9TxXDc/U="),
.outputName = "foo",
},
.outPath = StorePath { "g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-foo" },
},
},
{
"bar",
{
.id = DrvOutput {
.drvHash = Hash::parseSRI("sha256-b4afnqKCO9oWXgYHb9DeQ2berSwOjS27rSd9TxXDc/U="),
.outputName = "bar",
},
.outPath = StorePath { "g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-bar" },
},
},
},
.startTime = 30,
.stopTime = 50,
#if 0
// These fields are not yet serialized.
// FIXME Include in next version of protocol or document
// why they are skipped.
.cpuUser = std::chrono::milliseconds(500s),
.cpuSystem = std::chrono::milliseconds(604s),
#endif
},
};
t;
}))
VERSIONED_CHARACTERIZATION_TEST(
ServeProtoTest,
unkeyedValidPathInfo_2_3,
"unkeyed-valid-path-info-2.3",
2 << 8 | 3,
(std::tuple<UnkeyedValidPathInfo, UnkeyedValidPathInfo> {
({
UnkeyedValidPathInfo info { Hash::dummy };
info.narSize = 34878;
info;
}),
({
UnkeyedValidPathInfo info { Hash::dummy };
info.deriver = StorePath {
"g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-bar.drv",
};
info.references = {
StorePath {
"g1w7hyyyy1w7hy3qg1w7hy3qgqqqqy3q-foo.drv",
},
};
info.narSize = 34878;
info;
}),
}))
VERSIONED_CHARACTERIZATION_TEST(
ServeProtoTest,
unkeyedValidPathInfo_2_4,
"unkeyed-valid-path-info-2.4",
2 << 8 | 4,
(std::tuple<UnkeyedValidPathInfo, UnkeyedValidPathInfo> {
({
UnkeyedValidPathInfo info {
Hash::parseSRI("sha256-FePFYIlMuycIXPZbWi7LGEiMmZSX9FMbaQenWBzm1Sc="),
};
info.deriver = StorePath {
"g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-bar.drv",
};
info.references = {
StorePath {
"g1w7hyyyy1w7hy3qg1w7hy3qgqqqqy3q-foo.drv",
},
};
info.narSize = 34878;
info;
}),
({
ValidPathInfo info {
*LibStoreTest::store,
"foo",
FixedOutputInfo {
.method = FileIngestionMethod::Recursive,
.hash = hashString(HashAlgorithm::SHA256, "(...)"),
.references = {
.others = {
StorePath {
"g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-bar",
},
},
.self = true,
},
},
Hash::parseSRI("sha256-FePFYIlMuycIXPZbWi7LGEiMmZSX9FMbaQenWBzm1Sc="),
};
info.deriver = StorePath {
"g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-bar.drv",
};
info.narSize = 34878;
info.sigs = {
"fake-sig-1",
"fake-sig-2",
},
static_cast<UnkeyedValidPathInfo>(std::move(info));
}),
}))
VERSIONED_CHARACTERIZATION_TEST(
ServeProtoTest,
build_options_2_1,
"build-options-2.1",
2 << 8 | 1,
(ServeProto::BuildOptions {
.maxSilentTime = 5,
.buildTimeout = 6,
}))
VERSIONED_CHARACTERIZATION_TEST(
ServeProtoTest,
build_options_2_2,
"build-options-2.2",
2 << 8 | 2,
(ServeProto::BuildOptions {
.maxSilentTime = 5,
.buildTimeout = 6,
.maxLogSize = 7,
}))
VERSIONED_CHARACTERIZATION_TEST(
ServeProtoTest,
build_options_2_3,
"build-options-2.3",
2 << 8 | 3,
(ServeProto::BuildOptions {
.maxSilentTime = 5,
.buildTimeout = 6,
.maxLogSize = 7,
.nrRepeats = 8,
.enforceDeterminism = true,
}))
VERSIONED_CHARACTERIZATION_TEST(
ServeProtoTest,
build_options_2_7,
"build-options-2.7",
2 << 8 | 7,
(ServeProto::BuildOptions {
.maxSilentTime = 5,
.buildTimeout = 6,
.maxLogSize = 7,
.nrRepeats = 8,
.enforceDeterminism = false,
.keepFailed = true,
}))
VERSIONED_CHARACTERIZATION_TEST(
ServeProtoTest,
vector,
"vector",
defaultVersion,
(std::tuple<std::vector<std::string>, std::vector<std::string>, std::vector<std::string>, std::vector<std::vector<std::string>>> {
{ },
{ "" },
{ "", "foo", "bar" },
{ {}, { "" }, { "", "1", "2" } },
}))
VERSIONED_CHARACTERIZATION_TEST(
ServeProtoTest,
set,
"set",
defaultVersion,
(std::tuple<std::set<std::string>, std::set<std::string>, std::set<std::string>, std::set<std::set<std::string>>> {
{ },
{ "" },
{ "", "foo", "bar" },
{ {}, { "" }, { "", "1", "2" } },
}))
VERSIONED_CHARACTERIZATION_TEST(
ServeProtoTest,
optionalStorePath,
"optional-store-path",
defaultVersion,
(std::tuple<std::optional<StorePath>, std::optional<StorePath>> {
std::nullopt,
std::optional {
StorePath { "g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-foo-bar" },
},
}))
VERSIONED_CHARACTERIZATION_TEST(
ServeProtoTest,
optionalContentAddress,
"optional-content-address",
defaultVersion,
(std::tuple<std::optional<ContentAddress>, std::optional<ContentAddress>> {
std::nullopt,
std::optional {
ContentAddress {
.method = FileIngestionMethod::Flat,
.hash = hashString(HashAlgorithm::SHA1, "blob blob..."),
},
},
}))
TEST_F(ServeProtoTest, handshake_log)
{
CharacterizationTest::writeTest("handshake-to-client", [&]() -> std::string {
StringSink toClientLog;
Pipe toClient, toServer;
toClient.create();
toServer.create();
ServeProto::Version clientResult;
auto thread = std::thread([&]() {
FdSink out { toServer.writeSide.get() };
FdSource in0 { toClient.readSide.get() };
TeeSource in { in0, toClientLog };
clientResult = ServeProto::BasicClientConnection::handshake(
out, in, defaultVersion, "blah");
});
{
FdSink out { toClient.writeSide.get() };
FdSource in { toServer.readSide.get() };
ServeProto::BasicServerConnection::handshake(
out, in, defaultVersion);
};
thread.join();
return std::move(toClientLog.s);
});
}
/// Has to be a `BufferedSink` for handshake.
struct NullBufferedSink : BufferedSink {
void writeUnbuffered(std::string_view data) override { }
};
TEST_F(ServeProtoTest, handshake_client_replay)
{
CharacterizationTest::readTest("handshake-to-client", [&](std::string toClientLog) {
NullBufferedSink nullSink;
StringSource in { toClientLog };
auto clientResult = ServeProto::BasicClientConnection::handshake(
nullSink, in, defaultVersion, "blah");
EXPECT_EQ(clientResult, defaultVersion);
});
}
TEST_F(ServeProtoTest, handshake_client_truncated_replay_throws)
{
CharacterizationTest::readTest("handshake-to-client", [&](std::string toClientLog) {
for (size_t len = 0; len < toClientLog.size(); ++len) {
NullBufferedSink nullSink;
StringSource in {
// truncate
toClientLog.substr(0, len)
};
if (len < 8) {
EXPECT_THROW(
ServeProto::BasicClientConnection::handshake(
nullSink, in, defaultVersion, "blah"),
EndOfFile);
} else {
// Not sure why cannot keep on checking for `EndOfFile`.
EXPECT_THROW(
ServeProto::BasicClientConnection::handshake(
nullSink, in, defaultVersion, "blah"),
Error);
}
}
});
}
TEST_F(ServeProtoTest, handshake_client_corrupted_throws)
{
CharacterizationTest::readTest("handshake-to-client", [&](const std::string toClientLog) {
for (size_t idx = 0; idx < toClientLog.size(); ++idx) {
// corrupt a copy
std::string toClientLogCorrupt = toClientLog;
toClientLogCorrupt[idx] *= 4;
++toClientLogCorrupt[idx];
NullBufferedSink nullSink;
StringSource in { toClientLogCorrupt };
if (idx < 4 || idx == 9) {
// magic bytes don't match
EXPECT_THROW(
ServeProto::BasicClientConnection::handshake(
nullSink, in, defaultVersion, "blah"),
Error);
} else if (idx < 8 || idx >= 12) {
// Number out of bounds
EXPECT_THROW(
ServeProto::BasicClientConnection::handshake(
nullSink, in, defaultVersion, "blah"),
SerialisationError);
} else {
auto ver = ServeProto::BasicClientConnection::handshake(
nullSink, in, defaultVersion, "blah");
// `std::min` of this and the other version saves us
EXPECT_EQ(ver, defaultVersion);
}
}
});
}
}