nixpkgs/nixos/tests/mutable-users.nix

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# Mutable users tests.
import ./make-test-python.nix ({ pkgs, ...} : {
name = "mutable-users";
meta = with pkgs.lib.maintainers; {
maintainers = [ gleber ];
};
nodes = {
machine = { ... }: {
users.mutableUsers = false;
};
mutable = { ... }: {
users.mutableUsers = true;
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users.users.dry-test.isNormalUser = true;
};
};
testScript = {nodes, ...}: let
immutableSystem = nodes.machine.config.system.build.toplevel;
mutableSystem = nodes.mutable.config.system.build.toplevel;
in ''
machine.start()
machine.wait_for_unit("default.target")
# Machine starts in immutable mode. Add a user and test if reactivating
# configuration removes the user.
with subtest("Machine in immutable mode"):
assert "foobar" not in machine.succeed("cat /etc/passwd")
machine.succeed("sudo useradd foobar")
assert "foobar" in machine.succeed("cat /etc/passwd")
machine.succeed(
"${immutableSystem}/bin/switch-to-configuration test"
)
assert "foobar" not in machine.succeed("cat /etc/passwd")
# In immutable mode passwd is not wrapped, while in mutable mode it is
# wrapped.
with subtest("Password is wrapped in mutable mode"):
assert "/run/current-system/" in machine.succeed("which passwd")
machine.succeed(
"${mutableSystem}/bin/switch-to-configuration test"
)
assert "/run/wrappers/" in machine.succeed("which passwd")
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with subtest("dry-activation does not change files"):
machine.succeed('test -e /home/dry-test') # home was created
machine.succeed('rm -rf /home/dry-test')
files_to_check = ['/etc/group',
'/etc/passwd',
'/etc/shadow',
'/etc/subuid',
'/etc/subgid',
'/var/lib/nixos/uid-map',
'/var/lib/nixos/gid-map',
'/var/lib/nixos/declarative-groups',
'/var/lib/nixos/declarative-users'
]
expected_hashes = {}
expected_stats = {}
for file in files_to_check:
expected_hashes[file] = machine.succeed(f"sha256sum {file}")
expected_stats[file] = machine.succeed(f"stat {file}")
machine.succeed("/run/current-system/bin/switch-to-configuration dry-activate")
machine.fail('test -e /home/dry-test') # home was not recreated
for file in files_to_check:
assert machine.succeed(f"sha256sum {file}") == expected_hashes[file]
assert machine.succeed(f"stat {file}") == expected_stats[file]
'';
})