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nix/src/libstore-tests/machines.cc
Sergei Zimmerman 95d9c13716
Apply clang-format universally. 
* It is tough to contribute to a project that doesn't use a formatter,
* It is extra hard to contribute to a project which has configured the formatter, but ignores it for some files
* Code formatting makes it harder to hide obscure / weird bugs by accident or on purpose,

Let's rip the bandaid off?

Note that PRs currently in flight should be able to be merged relatively easily by applying `clang-format` to their tip prior to merge.

Co-authored-by: Graham Christensen <graham@grahamc.com>
2025-07-18 22:26:03 +03:00

205 lines
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#include "nix/store/machines.hh"
#include "nix/util/file-system.hh"
#include "nix/util/util.hh"
#include "nix/util/tests/characterization.hh"
#include <gtest/gtest.h>
#include <gmock/gmock-matchers.h>
using testing::Contains;
using testing::ElementsAre;
using testing::Eq;
using testing::Field;
using testing::SizeIs;
namespace nix::fs {
using namespace std::filesystem;
}
using namespace nix;
TEST(machines, getMachinesWithEmptyBuilders)
{
auto actual = Machine::parseConfig({}, "");
ASSERT_THAT(actual, SizeIs(0));
}
TEST(machines, getMachinesUriOnly)
{
auto actual = Machine::parseConfig({"TEST_ARCH-TEST_OS"}, "nix@scratchy.labs.cs.uu.nl");
ASSERT_THAT(actual, SizeIs(1));
EXPECT_THAT(actual[0], Field(&Machine::storeUri, Eq(StoreReference::parse("ssh://nix@scratchy.labs.cs.uu.nl"))));
EXPECT_THAT(actual[0], Field(&Machine::systemTypes, ElementsAre("TEST_ARCH-TEST_OS")));
EXPECT_THAT(actual[0], Field(&Machine::sshKey, SizeIs(0)));
EXPECT_THAT(actual[0], Field(&Machine::maxJobs, Eq(1)));
EXPECT_THAT(actual[0], Field(&Machine::speedFactor, Eq(1)));
EXPECT_THAT(actual[0], Field(&Machine::supportedFeatures, SizeIs(0)));
EXPECT_THAT(actual[0], Field(&Machine::mandatoryFeatures, SizeIs(0)));
EXPECT_THAT(actual[0], Field(&Machine::sshPublicHostKey, SizeIs(0)));
}
TEST(machines, getMachinesDefaults)
{
auto actual = Machine::parseConfig({"TEST_ARCH-TEST_OS"}, "nix@scratchy.labs.cs.uu.nl - - - - - - -");
ASSERT_THAT(actual, SizeIs(1));
EXPECT_THAT(actual[0], Field(&Machine::storeUri, Eq(StoreReference::parse("ssh://nix@scratchy.labs.cs.uu.nl"))));
EXPECT_THAT(actual[0], Field(&Machine::systemTypes, ElementsAre("TEST_ARCH-TEST_OS")));
EXPECT_THAT(actual[0], Field(&Machine::sshKey, SizeIs(0)));
EXPECT_THAT(actual[0], Field(&Machine::maxJobs, Eq(1)));
EXPECT_THAT(actual[0], Field(&Machine::speedFactor, Eq(1)));
EXPECT_THAT(actual[0], Field(&Machine::supportedFeatures, SizeIs(0)));
EXPECT_THAT(actual[0], Field(&Machine::mandatoryFeatures, SizeIs(0)));
EXPECT_THAT(actual[0], Field(&Machine::sshPublicHostKey, SizeIs(0)));
}
MATCHER_P(AuthorityMatches, authority, "")
{
*result_listener << "where the authority of " << arg.render() << " is " << authority;
auto * generic = std::get_if<StoreReference::Specified>(&arg.variant);
if (!generic)
return false;
return generic->authority == authority;
}
TEST(machines, getMachinesWithNewLineSeparator)
{
auto actual = Machine::parseConfig({}, "nix@scratchy.labs.cs.uu.nl\nnix@itchy.labs.cs.uu.nl");
ASSERT_THAT(actual, SizeIs(2));
EXPECT_THAT(actual, Contains(Field(&Machine::storeUri, AuthorityMatches("nix@scratchy.labs.cs.uu.nl"))));
EXPECT_THAT(actual, Contains(Field(&Machine::storeUri, AuthorityMatches("nix@itchy.labs.cs.uu.nl"))));
}
TEST(machines, getMachinesWithSemicolonSeparator)
{
auto actual = Machine::parseConfig({}, "nix@scratchy.labs.cs.uu.nl ; nix@itchy.labs.cs.uu.nl");
EXPECT_THAT(actual, SizeIs(2));
EXPECT_THAT(actual, Contains(Field(&Machine::storeUri, AuthorityMatches("nix@scratchy.labs.cs.uu.nl"))));
EXPECT_THAT(actual, Contains(Field(&Machine::storeUri, AuthorityMatches("nix@itchy.labs.cs.uu.nl"))));
}
TEST(machines, getMachinesWithCommentsAndSemicolonSeparator)
{
auto actual = Machine::parseConfig(
{},
"# This is a comment ; this is still that comment\n"
"nix@scratchy.labs.cs.uu.nl ; nix@itchy.labs.cs.uu.nl\n"
"# This is also a comment ; this also is still that comment\n"
"nix@scabby.labs.cs.uu.nl\n");
EXPECT_THAT(actual, SizeIs(3));
EXPECT_THAT(actual, Contains(Field(&Machine::storeUri, AuthorityMatches("nix@scratchy.labs.cs.uu.nl"))));
EXPECT_THAT(actual, Contains(Field(&Machine::storeUri, AuthorityMatches("nix@itchy.labs.cs.uu.nl"))));
EXPECT_THAT(actual, Contains(Field(&Machine::storeUri, AuthorityMatches("nix@scabby.labs.cs.uu.nl"))));
}
TEST(machines, getMachinesWithFunnyWhitespace)
{
auto actual = Machine::parseConfig(
{},
" # comment ; comment\n"
" nix@scratchy.labs.cs.uu.nl ; nix@itchy.labs.cs.uu.nl \n"
"\n \n"
"\n ;;; \n"
"\n ; ; \n"
"nix@scabby.labs.cs.uu.nl\n\n");
EXPECT_THAT(actual, SizeIs(3));
EXPECT_THAT(actual, Contains(Field(&Machine::storeUri, AuthorityMatches("nix@scratchy.labs.cs.uu.nl"))));
EXPECT_THAT(actual, Contains(Field(&Machine::storeUri, AuthorityMatches("nix@itchy.labs.cs.uu.nl"))));
EXPECT_THAT(actual, Contains(Field(&Machine::storeUri, AuthorityMatches("nix@scabby.labs.cs.uu.nl"))));
}
TEST(machines, getMachinesWithCorrectCompleteSingleBuilder)
{
auto actual = Machine::parseConfig(
{},
"nix@scratchy.labs.cs.uu.nl i686-linux "
"/home/nix/.ssh/id_scratchy_auto 8 3 kvm "
"benchmark SSH+HOST+PUBLIC+KEY+BASE64+ENCODED==");
ASSERT_THAT(actual, SizeIs(1));
EXPECT_THAT(actual[0], Field(&Machine::storeUri, AuthorityMatches("nix@scratchy.labs.cs.uu.nl")));
EXPECT_THAT(actual[0], Field(&Machine::systemTypes, ElementsAre("i686-linux")));
EXPECT_THAT(actual[0], Field(&Machine::sshKey, Eq("/home/nix/.ssh/id_scratchy_auto")));
EXPECT_THAT(actual[0], Field(&Machine::maxJobs, Eq(8)));
EXPECT_THAT(actual[0], Field(&Machine::speedFactor, Eq(3)));
EXPECT_THAT(actual[0], Field(&Machine::supportedFeatures, ElementsAre("kvm")));
EXPECT_THAT(actual[0], Field(&Machine::mandatoryFeatures, ElementsAre("benchmark")));
EXPECT_THAT(actual[0], Field(&Machine::sshPublicHostKey, Eq("SSH+HOST+PUBLIC+KEY+BASE64+ENCODED==")));
}
TEST(machines, getMachinesWithCorrectCompleteSingleBuilderWithTabColumnDelimiter)
{
auto actual = Machine::parseConfig(
{},
"nix@scratchy.labs.cs.uu.nl\ti686-linux\t/home/nix/.ssh/"
"id_scratchy_auto\t8\t3\tkvm\tbenchmark\tSSH+HOST+PUBLIC+"
"KEY+BASE64+ENCODED==");
ASSERT_THAT(actual, SizeIs(1));
EXPECT_THAT(actual[0], Field(&Machine::storeUri, AuthorityMatches("nix@scratchy.labs.cs.uu.nl")));
EXPECT_THAT(actual[0], Field(&Machine::systemTypes, ElementsAre("i686-linux")));
EXPECT_THAT(actual[0], Field(&Machine::sshKey, Eq("/home/nix/.ssh/id_scratchy_auto")));
EXPECT_THAT(actual[0], Field(&Machine::maxJobs, Eq(8)));
EXPECT_THAT(actual[0], Field(&Machine::speedFactor, Eq(3)));
EXPECT_THAT(actual[0], Field(&Machine::supportedFeatures, ElementsAre("kvm")));
EXPECT_THAT(actual[0], Field(&Machine::mandatoryFeatures, ElementsAre("benchmark")));
EXPECT_THAT(actual[0], Field(&Machine::sshPublicHostKey, Eq("SSH+HOST+PUBLIC+KEY+BASE64+ENCODED==")));
}
TEST(machines, getMachinesWithMultiOptions)
{
auto actual = Machine::parseConfig(
{},
"nix@scratchy.labs.cs.uu.nl Arch1,Arch2 - - - "
"SupportedFeature1,SupportedFeature2 "
"MandatoryFeature1,MandatoryFeature2");
ASSERT_THAT(actual, SizeIs(1));
EXPECT_THAT(actual[0], Field(&Machine::storeUri, AuthorityMatches("nix@scratchy.labs.cs.uu.nl")));
EXPECT_THAT(actual[0], Field(&Machine::systemTypes, ElementsAre("Arch1", "Arch2")));
EXPECT_THAT(actual[0], Field(&Machine::supportedFeatures, ElementsAre("SupportedFeature1", "SupportedFeature2")));
EXPECT_THAT(actual[0], Field(&Machine::mandatoryFeatures, ElementsAre("MandatoryFeature1", "MandatoryFeature2")));
}
TEST(machines, getMachinesWithIncorrectFormat)
{
EXPECT_THROW(Machine::parseConfig({}, "nix@scratchy.labs.cs.uu.nl - - eight"), FormatError);
EXPECT_THROW(Machine::parseConfig({}, "nix@scratchy.labs.cs.uu.nl - - -1"), FormatError);
EXPECT_THROW(Machine::parseConfig({}, "nix@scratchy.labs.cs.uu.nl - - 8 three"), FormatError);
EXPECT_THROW(Machine::parseConfig({}, "nix@scratchy.labs.cs.uu.nl - - 8 -3"), UsageError);
EXPECT_THROW(Machine::parseConfig({}, "nix@scratchy.labs.cs.uu.nl - - 8 3 - - BAD_BASE64"), FormatError);
}
TEST(machines, getMachinesWithCorrectFileReference)
{
auto path = std::filesystem::weakly_canonical(getUnitTestData() / "machines/valid");
ASSERT_TRUE(std::filesystem::exists(path));
auto actual = Machine::parseConfig({}, "@" + path.string());
ASSERT_THAT(actual, SizeIs(3));
EXPECT_THAT(actual, Contains(Field(&Machine::storeUri, AuthorityMatches("nix@scratchy.labs.cs.uu.nl"))));
EXPECT_THAT(actual, Contains(Field(&Machine::storeUri, AuthorityMatches("nix@itchy.labs.cs.uu.nl"))));
EXPECT_THAT(actual, Contains(Field(&Machine::storeUri, AuthorityMatches("nix@poochie.labs.cs.uu.nl"))));
}
TEST(machines, getMachinesWithCorrectFileReferenceToEmptyFile)
{
std::filesystem::path path = "/dev/null";
ASSERT_TRUE(std::filesystem::exists(path));
auto actual = Machine::parseConfig({}, "@" + path.string());
ASSERT_THAT(actual, SizeIs(0));
}
TEST(machines, getMachinesWithIncorrectFileReference)
{
auto path = std::filesystem::weakly_canonical("/not/a/file");
ASSERT_TRUE(!std::filesystem::exists(path));
auto actual = Machine::parseConfig({}, "@" + path.string());
ASSERT_THAT(actual, SizeIs(0));
}
TEST(machines, getMachinesWithCorrectFileReferenceToIncorrectFile)
{
EXPECT_THROW(
Machine::parseConfig(
{}, "@" + std::filesystem::weakly_canonical(getUnitTestData() / "machines" / "bad_format").string()),
FormatError);
}
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