131 lines
3.4 KiB
Perl
131 lines
3.4 KiB
Perl
use strict;
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use warnings;
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package HydraTestContext;
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use File::Path qw(make_path);
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use File::Basename;
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use Cwd qw(abs_path getcwd);
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# Set up the environment for running tests.
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#
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# Hash Parameters:
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#
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# * hydra_config: configuration for the Hydra processes for your test.
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# * nix_config: text to include in the test's nix.conf
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# * use_external_destination_store: Boolean indicating whether hydra should
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# use a destination store different from the evaluation store.
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# True by default.
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#
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# This clears several environment variables and sets them to ephemeral
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# values: a temporary database, temporary Nix store, temporary Hydra
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# data directory, etc.
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#
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# Note: This function must run _very_ early, before nearly any Hydra
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# libraries are loaded. To use this, you very likely need to `use Setup`
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# and then run `test_init`, and then `require` the Hydra libraries you
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# need.
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#
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# It returns a tuple: a handle to a temporary directory and a handle to
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# the postgres service. If either of these variables go out of scope,
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# those resources are released and the test environment becomes invalid.
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#
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# Look at the top of an existing `.t` file to see how this should be used
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# in practice.
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sub new {
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my ($class, %opts) = @_;
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my $dir = File::Temp->newdir();
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$ENV{'HYDRA_DATA'} = "$dir/hydra-data";
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mkdir $ENV{'HYDRA_DATA'};
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$ENV{'NIX_CONF_DIR'} = "$dir/nix/etc/nix";
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make_path($ENV{'NIX_CONF_DIR'});
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my $nixconf = "$ENV{'NIX_CONF_DIR'}/nix.conf";
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my $nix_config = "sandbox = false\n" . ($opts{'nix_config'} || "");
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write_file($nixconf, $nix_config);
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$ENV{'HYDRA_CONFIG'} = "$dir/hydra.conf";
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my $hydra_config = $opts{'hydra_config'} || "";
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if ($opts{'use_external_destination_store'} // 1) {
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$hydra_config = "store_uri = file:$dir/nix/dest-store\n" . $hydra_config;
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}
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write_file($ENV{'HYDRA_CONFIG'}, $hydra_config);
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$ENV{'NIX_LOG_DIR'} = "$dir/nix/var/log/nix";
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$ENV{'NIX_REMOTE_SYSTEMS'} = '';
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$ENV{'NIX_REMOTE'} = '';
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$ENV{'NIX_STATE_DIR'} = "$dir/nix/var/nix";
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$ENV{'NIX_STORE_DIR'} = "$dir/nix/store";
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my $pgsql = Test::PostgreSQL->new(
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extra_initdb_args => "--locale C.UTF-8"
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);
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$ENV{'HYDRA_DBI'} = $pgsql->dsn;
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system("hydra-init") == 0 or die;
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my $self = {
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_db => undef,
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db_handle => $pgsql,
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tmpdir => $dir,
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testdir => abs_path(dirname(__FILE__) . "/.."),
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jobsdir => abs_path(dirname(__FILE__) . "/../jobs")
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};
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return bless $self, $class;
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}
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sub db {
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my ($self, $setup) = @_;
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if (!defined $self->{_db}) {
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require Hydra::Schema;
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require Hydra::Model::DB;
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$self->{_db} = Hydra::Model::DB->new();
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if (!(defined $setup && $setup == 0)) {
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$self->{_db}->resultset('Users')->create({
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username => "root",
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emailaddress => 'root@invalid.org',
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password => ''
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});
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}
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}
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return $self->{_db};
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}
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sub tmpdir {
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my ($self) = @_;
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return $self->{tmpdir};
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}
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sub testdir {
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my ($self) = @_;
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return $self->{testdir};
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}
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sub jobsdir {
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my ($self) = @_;
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return $self->{jobsdir};
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}
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sub DESTROY
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{
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my ($self) = @_;
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$self->db(0)->schema->storage->disconnect();
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}
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sub write_file {
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my ($path, $text) = @_;
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open(my $fh, '>', $path) or die "Could not open file '$path' $!";
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print $fh $text || "";
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close $fh;
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}
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1;
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