pg_basebackup: Add tests for -X option

Reviewed-by: Michael Paquier <michael.paquier@gmail.com>

src/bin/pg_basebackup/t/010_pg_basebackup.pl

@@ -2,7 +2,7 @@ use strict;
 use warnings;
 use Cwd;
 use TestLib;
-use Test::More tests => 39;
+use Test::More tests => 44;
 
 program_help_ok('pg_basebackup');
 program_version_ok('pg_basebackup');
@@ -46,6 +46,10 @@ command_ok([ 'pg_basebackup', '-D', "$tempdir/backup" ],
 	'pg_basebackup runs');
 ok(-f "$tempdir/backup/PG_VERSION", 'backup was created');
 
+is_deeply([sort(slurp_dir("$tempdir/backup/pg_xlog/"))],
+		  [sort qw(. .. archive_status)],
+		  'no WAL files copied');
+
 command_ok(
 	[   'pg_basebackup', '-D', "$tempdir/backup2", '--xlogdir',
 		"$tempdir/xlog2" ],
@@ -145,3 +149,10 @@ ok(-f "$tempdir/backupR/recovery.conf", 'recovery.conf was created');
 my $recovery_conf = slurp_file "$tempdir/backupR/recovery.conf";
 like($recovery_conf, qr/^standby_mode = 'on'$/m, 'recovery.conf sets standby_mode');
 like($recovery_conf, qr/^primary_conninfo = '.*port=$ENV{PGPORT}.*'$/m, 'recovery.conf sets primary_conninfo');
+
+command_ok([ 'pg_basebackup', '-D', "$tempdir/backupxf", '-X', 'fetch' ],
+	'pg_basebackup -X fetch runs');
+ok(grep(/^[0-9A-F]{24}$/, slurp_dir("$tempdir/backupxf/pg_xlog")), 'WAL files copied');
+command_ok([ 'pg_basebackup', '-D', "$tempdir/backupxs", '-X', 'stream' ],
+	'pg_basebackup -X stream runs');
+ok(grep(/^[0-9A-F]{24}$/, slurp_dir("$tempdir/backupxf/pg_xlog")), 'WAL files copied');

src/test/perl/TestLib.pm

@@ -11,6 +11,7 @@ our @EXPORT = qw(
   start_test_server
   restart_test_server
   psql
+  slurp_dir
   slurp_file
   system_or_bail
   system_log
@@ -176,6 +177,15 @@ sub psql
 	run [ 'psql', '-X', '-q', '-d', $dbname, '-f', '-' ], '<', \$sql or die;
 }
 
+sub slurp_dir
+{
+	my ($dir) = @_;
+	opendir(my $dh, $dir) or die;
+	my @direntries = readdir $dh;
+	closedir $dh;
+	return @direntries;
+}
+
 sub slurp_file
 {
 	local $/;