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nix-super/tests/unit/libstore/machines.cc
John Ericson 91b6833686 Move tests to separate directories, and document 
Today, with the tests inside a `tests` intermingled with the
corresponding library's source code, we have a few problems:

- We have to be careful that wildcards don't end up with tests being
  built as part of Nix proper, or test headers being installed as part
  of Nix proper.

- Tests in libraries but not executables is not right:

  - It means each executable runs the previous unit tests again, because
    it needs the libraries.

  - It doesn't work right on Windows, which doesn't want you to load a
    DLL just for the side global variable . It could be made to work
    with the dlopen equivalent, but that's gross!

This reorg solves these problems.

There is a remaining problem which is that sibbling headers (like
`hash.hh` the test header vs `hash.hh` the main `libnixutil` header) end
up shadowing each other. This PR doesn't solve that. That is left as
future work for a future PR.

Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-12-01 10:48:58 -05:00

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#include "machines.hh"
#include "globals.hh"
#include "file-system.hh"
#include "util.hh"
#include <gmock/gmock-matchers.h>
using testing::Contains;
using testing::ElementsAre;
using testing::EndsWith;
using testing::Eq;
using testing::Field;
using testing::SizeIs;
using nix::absPath;
using nix::FormatError;
using nix::getMachines;
using nix::Machine;
using nix::Machines;
using nix::pathExists;
using nix::Settings;
using nix::settings;
class Environment : public ::testing::Environment {
public:
void SetUp() override { settings.thisSystem = "TEST_ARCH-TEST_OS"; }
};
testing::Environment* const foo_env =
testing::AddGlobalTestEnvironment(new Environment);
TEST(machines, getMachinesWithEmptyBuilders) {
settings.builders = "";
Machines actual = getMachines();
ASSERT_THAT(actual, SizeIs(0));
}
TEST(machines, getMachinesUriOnly) {
settings.builders = "nix@scratchy.labs.cs.uu.nl";
Machines actual = getMachines();
ASSERT_THAT(actual, SizeIs(1));
EXPECT_THAT(actual[0], Field(&Machine::storeUri, Eq("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) {
settings.builders = "nix@scratchy.labs.cs.uu.nl - - - - - - -";
Machines actual = getMachines();
ASSERT_THAT(actual, SizeIs(1));
EXPECT_THAT(actual[0], Field(&Machine::storeUri, Eq("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, getMachinesWithNewLineSeparator) {
settings.builders = "nix@scratchy.labs.cs.uu.nl\nnix@itchy.labs.cs.uu.nl";
Machines actual = getMachines();
ASSERT_THAT(actual, SizeIs(2));
EXPECT_THAT(actual, Contains(Field(&Machine::storeUri, EndsWith("nix@scratchy.labs.cs.uu.nl"))));
EXPECT_THAT(actual, Contains(Field(&Machine::storeUri, EndsWith("nix@itchy.labs.cs.uu.nl"))));
}
TEST(machines, getMachinesWithSemicolonSeparator) {
settings.builders = "nix@scratchy.labs.cs.uu.nl ; nix@itchy.labs.cs.uu.nl";
Machines actual = getMachines();
EXPECT_THAT(actual, SizeIs(2));
EXPECT_THAT(actual, Contains(Field(&Machine::storeUri, EndsWith("nix@scratchy.labs.cs.uu.nl"))));
EXPECT_THAT(actual, Contains(Field(&Machine::storeUri, EndsWith("nix@itchy.labs.cs.uu.nl"))));
}
TEST(machines, getMachinesWithCorrectCompleteSingleBuilder) {
settings.builders = "nix@scratchy.labs.cs.uu.nl i686-linux "
"/home/nix/.ssh/id_scratchy_auto 8 3 kvm "
"benchmark SSH+HOST+PUBLIC+KEY+BASE64+ENCODED==";
Machines actual = getMachines();
ASSERT_THAT(actual, SizeIs(1));
EXPECT_THAT(actual[0], Field(&Machine::storeUri, EndsWith("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) {
settings.builders =
"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==";
Machines actual = getMachines();
ASSERT_THAT(actual, SizeIs(1));
EXPECT_THAT(actual[0], Field(&Machine::storeUri, EndsWith("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) {
settings.builders = "nix@scratchy.labs.cs.uu.nl Arch1,Arch2 - - - "
"SupportedFeature1,SupportedFeature2 "
"MandatoryFeature1,MandatoryFeature2";
Machines actual = getMachines();
ASSERT_THAT(actual, SizeIs(1));
EXPECT_THAT(actual[0], Field(&Machine::storeUri, EndsWith("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) {
settings.builders = "nix@scratchy.labs.cs.uu.nl - - eight";
EXPECT_THROW(getMachines(), FormatError);
settings.builders = "nix@scratchy.labs.cs.uu.nl - - -1";
EXPECT_THROW(getMachines(), FormatError);
settings.builders = "nix@scratchy.labs.cs.uu.nl - - 8 three";
EXPECT_THROW(getMachines(), FormatError);
settings.builders = "nix@scratchy.labs.cs.uu.nl - - 8 -3";
EXPECT_THROW(getMachines(), FormatError);
settings.builders = "nix@scratchy.labs.cs.uu.nl - - 8 3 - - BAD_BASE64";
EXPECT_THROW(getMachines(), FormatError);
}
TEST(machines, getMachinesWithCorrectFileReference) {
auto path = absPath("tests/unit/libstore/test-data/machines.valid");
ASSERT_TRUE(pathExists(path));
settings.builders = std::string("@") + path;
Machines actual = getMachines();
ASSERT_THAT(actual, SizeIs(3));
EXPECT_THAT(actual, Contains(Field(&Machine::storeUri, EndsWith("nix@scratchy.labs.cs.uu.nl"))));
EXPECT_THAT(actual, Contains(Field(&Machine::storeUri, EndsWith("nix@itchy.labs.cs.uu.nl"))));
EXPECT_THAT(actual, Contains(Field(&Machine::storeUri, EndsWith("nix@poochie.labs.cs.uu.nl"))));
}
TEST(machines, getMachinesWithCorrectFileReferenceToEmptyFile) {
auto path = "/dev/null";
ASSERT_TRUE(pathExists(path));
settings.builders = std::string("@") + path;
Machines actual = getMachines();
ASSERT_THAT(actual, SizeIs(0));
}
TEST(machines, getMachinesWithIncorrectFileReference) {
settings.builders = std::string("@") + absPath("/not/a/file");
Machines actual = getMachines();
ASSERT_THAT(actual, SizeIs(0));
}
TEST(machines, getMachinesWithCorrectFileReferenceToIncorrectFile) {
settings.builders = std::string("@") + absPath("tests/unit/libstore/test-data/machines.bad_format");
EXPECT_THROW(getMachines(), FormatError);
}
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