On Wed, Dec 2, 2015 at 12:01 PM, Alvaro Herrera
<alvhe...@2ndquadrant.com> wrote:
> Michael Paquier wrote:
>> On Wed, Dec 2, 2015 at 8:11 AM, Alvaro Herrera <alvhe...@2ndquadrant.com> 
>> wrote:
>
>> > - It would be nice to have command_ok and command_fails in PostgresNode
>> >   too; that would remove the need for setting $ENV{PGPORT} but it's
>> >   possible to run commands outside a node too, so we'd need duplicates,
>> >   which would be worse.
>>
>> I am fine to let it the way your patch does it. There are already many 
>> changes.
>
> Idea: we can have a bare command_ok exported by TestLib just as
> currently, and instance method PostgresNode->command_ok that first sets
> local $ENV{PGPORT} and then calls the other one.

Hm. That would be cleaner and make the code more consistent. Now as
TestLib exports command_ok, command_like and command_fails, we would
get redefinition errors when compiling the code if those routines are
not named differently in PostgresNode. If you want to have the names
consistent, then I guess that the only way would be to remove those
routines from the export list of TestLib and call them directly as for
example TestLib::command_ok(). See for example the patch attached that
applies on top on your patch 2 that adds a set of routines in
PostgresNode with a slightly different name.

>> > Finally, I ran perltidy on all the files, which strangely changed stuff
>> > that I didn't expect it to change.  I wonder if this is related to the
>> > perltidy version.  Do you see further changes if you run perltidy on the
>> > patched tree?
>>
>> SimpleTee.pm shows some diffs, though it doesn't seem that this patch
>> should care about that. The rest is showing no diffs. And I have used
>> perltidy v20140711.
>
> Yes, the patch doesn't modify SimpleTee -- I just used "find" to indent
> perl files.  What I don't understand is why doesn't my perltidy run
> match what was in master currently.  It should be a no-op ...

Well I don't get it either :)
I did a run on top of your two patches and saw no differences.
-- 
Michael
diff --git a/src/bin/pg_basebackup/t/010_pg_basebackup.pl b/src/bin/pg_basebackup/t/010_pg_basebackup.pl
index bc4afce..96dd103 100644
--- a/src/bin/pg_basebackup/t/010_pg_basebackup.pl
+++ b/src/bin/pg_basebackup/t/010_pg_basebackup.pl
@@ -19,11 +19,10 @@ $node->init(hba_permit_replication => 0);
 $node->start;
 my $pgdata = $node->data_dir;
 
-$ENV{PGPORT} = $node->port;
-
-command_fails(['pg_basebackup'],
+$node->node_command_fails(
+	['pg_basebackup'],
 	'pg_basebackup needs target directory specified');
-command_fails(
+$node->node_command_fails(
 	[ 'pg_basebackup', '-D', "$tempdir/backup" ],
 	'pg_basebackup fails because of hba');
 
@@ -38,7 +37,7 @@ if (open BADCHARS, ">>$tempdir/pgdata/FOO\xe0\xe0\xe0BAR")
 $node->set_replication_conf();
 system_or_bail 'pg_ctl', '-D', $pgdata, 'reload';
 
-command_fails(
+$node->node_command_fails(
 	[ 'pg_basebackup', '-D', "$tempdir/backup" ],
 	'pg_basebackup fails because of WAL configuration');
 
@@ -49,7 +48,7 @@ print CONF "wal_level = archive\n";
 close CONF;
 $node->restart;
 
-command_ok([ 'pg_basebackup', '-D', "$tempdir/backup" ],
+$node->node_command_ok([ 'pg_basebackup', '-D', "$tempdir/backup" ],
 	'pg_basebackup runs');
 ok(-f "$tempdir/backup/PG_VERSION", 'backup was created');
 
@@ -58,34 +57,34 @@ is_deeply(
 	[ sort qw(. .. archive_status) ],
 	'no WAL files copied');
 
-command_ok(
+$node->node_command_ok(
 	[   'pg_basebackup', '-D', "$tempdir/backup2", '--xlogdir',
 		"$tempdir/xlog2" ],
 	'separate xlog directory');
 ok(-f "$tempdir/backup2/PG_VERSION", 'backup was created');
 ok(-d "$tempdir/xlog2/",             'xlog directory was created');
 
-command_ok([ 'pg_basebackup', '-D', "$tempdir/tarbackup", '-Ft' ],
+$node->node_command_ok([ 'pg_basebackup', '-D', "$tempdir/tarbackup", '-Ft' ],
 	'tar format');
 ok(-f "$tempdir/tarbackup/base.tar", 'backup tar was created');
 
-command_fails(
+$node->node_command_fails(
 	[ 'pg_basebackup', '-D', "$tempdir/backup_foo", '-Fp', "-T=/foo" ],
 	'-T with empty old directory fails');
-command_fails(
+$node->node_command_fails(
 	[ 'pg_basebackup', '-D', "$tempdir/backup_foo", '-Fp', "-T/foo=" ],
 	'-T with empty new directory fails');
-command_fails(
+$node->node_command_fails(
 	[   'pg_basebackup', '-D', "$tempdir/backup_foo", '-Fp',
 		"-T/foo=/bar=/baz" ],
 	'-T with multiple = fails');
-command_fails(
+$node->node_command_fails(
 	[ 'pg_basebackup', '-D', "$tempdir/backup_foo", '-Fp', "-Tfoo=/bar" ],
 	'-T with old directory not absolute fails');
-command_fails(
+$node->node_command_fails(
 	[ 'pg_basebackup', '-D', "$tempdir/backup_foo", '-Fp', "-T/foo=bar" ],
 	'-T with new directory not absolute fails');
-command_fails(
+$node->node_command_fails(
 	[ 'pg_basebackup', '-D', "$tempdir/backup_foo", '-Fp', "-Tfoo" ],
 	'-T with invalid format fails');
 
@@ -95,7 +94,7 @@ my $superlongpath = "$pgdata/$superlongname";
 
 open FILE, ">$superlongpath" or die "unable to create file $superlongpath";
 close FILE;
-command_fails([ 'pg_basebackup', '-D', "$tempdir/tarbackup_l1", '-Ft' ],
+$node->node_command_fails([ 'pg_basebackup', '-D', "$tempdir/tarbackup_l1", '-Ft' ],
 	'pg_basebackup tar with long name fails');
 unlink "$pgdata/$superlongname";
 
@@ -116,17 +115,17 @@ SKIP:
 	$node->psql('postgres',
 		"CREATE TABLESPACE tblspc1 LOCATION '$shorter_tempdir/tblspc1';");
 	$node->psql('postgres', "CREATE TABLE test1 (a int) TABLESPACE tblspc1;");
-	command_ok([ 'pg_basebackup', '-D', "$tempdir/tarbackup2", '-Ft' ],
+	$node->node_command_ok([ 'pg_basebackup', '-D', "$tempdir/tarbackup2", '-Ft' ],
 		'tar format with tablespaces');
 	ok(-f "$tempdir/tarbackup2/base.tar", 'backup tar was created');
 	my @tblspc_tars = glob "$tempdir/tarbackup2/[0-9]*.tar";
 	is(scalar(@tblspc_tars), 1, 'one tablespace tar was created');
 
-	command_fails(
+	$node->node_command_fails(
 		[ 'pg_basebackup', '-D', "$tempdir/backup1", '-Fp' ],
 		'plain format with tablespaces fails without tablespace mapping');
 
-	command_ok(
+	$node->node_command_ok(
 		[   'pg_basebackup', '-D', "$tempdir/backup1", '-Fp',
 			"-T$shorter_tempdir/tblspc1=$tempdir/tbackup/tblspc1" ],
 		'plain format with tablespaces succeeds with tablespace mapping');
@@ -145,7 +144,7 @@ SKIP:
 	$node->psql('postgres', "DROP TABLESPACE tblspc1;");
 	$node->psql('postgres',
 		"CREATE TABLESPACE tblspc2 LOCATION '$shorter_tempdir/tbl=spc2';");
-	command_ok(
+	$node->node_command_ok(
 		[   'pg_basebackup', '-D', "$tempdir/backup3", '-Fp',
 			"-T$shorter_tempdir/tbl\\=spc2=$tempdir/tbackup/tbl\\=spc2" ],
 		'mapping tablespace with = sign in path');
@@ -156,12 +155,12 @@ SKIP:
 	mkdir "$tempdir/$superlongname";
 	$node->psql('postgres',
 		"CREATE TABLESPACE tblspc3 LOCATION '$tempdir/$superlongname';");
-	command_ok([ 'pg_basebackup', '-D', "$tempdir/tarbackup_l3", '-Ft' ],
+	$node->node_command_ok([ 'pg_basebackup', '-D', "$tempdir/tarbackup_l3", '-Ft' ],
 		'pg_basebackup tar with long symlink target');
 	$node->psql('postgres', "DROP TABLESPACE tblspc3;");
 }
 
-command_ok([ 'pg_basebackup', '-D', "$tempdir/backupR", '-R' ],
+$node->node_command_ok([ 'pg_basebackup', '-D', "$tempdir/backupR", '-R' ],
 	'pg_basebackup -R runs');
 ok(-f "$tempdir/backupR/recovery.conf", 'recovery.conf was created');
 my $recovery_conf = slurp_file "$tempdir/backupR/recovery.conf";
@@ -177,19 +176,19 @@ like(
 	qr/^primary_conninfo = '.*port=$ENV{PGPORT}.*'$/m,
 	'recovery.conf sets primary_conninfo');
 
-command_ok([ 'pg_basebackup', '-D', "$tempdir/backupxf", '-X', 'fetch' ],
+$node->node_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' ],
+$node->node_command_ok([ 'pg_basebackup', '-D', "$tempdir/backupxs", '-X', 'stream' ],
 	'pg_basebackup -X stream runs');
 ok(grep(/^[0-9A-F]{24}$/, slurp_dir("$tempdir/backupxf/pg_xlog")),
 	'WAL files copied');
 
-command_fails(
+$node->node_command_fails(
 	[ 'pg_basebackup', '-D', "$tempdir/fail", '-S', 'slot1' ],
 	'pg_basebackup with replication slot fails without -X stream');
-command_fails(
+$node->node_command_fails(
 	[   'pg_basebackup',             '-D',
 		"$tempdir/backupxs_sl_fail", '-X',
 		'stream',                    '-S',
@@ -202,7 +201,7 @@ my $lsn = $node->psql('postgres',
 	q{SELECT restart_lsn FROM pg_replication_slots WHERE slot_name = 'slot1'}
 );
 is($lsn, '', 'restart LSN of new slot is null');
-command_ok(
+$node->node_command_ok(
 	[   'pg_basebackup', '-D', "$tempdir/backupxs_sl", '-X',
 		'stream',        '-S', 'slot1' ],
 	'pg_basebackup -X stream with replication slot runs');
@@ -211,7 +210,7 @@ $lsn = $node->psql('postgres',
 );
 like($lsn, qr!^0/[0-9A-Z]{7,8}$!, 'restart LSN of slot has advanced');
 
-command_ok(
+$node->node_command_ok(
 	[   'pg_basebackup', '-D', "$tempdir/backupxs_sl_R", '-X',
 		'stream',        '-S', 'slot1',                  '-R' ],
 	'pg_basebackup with replication slot and -R runs');
diff --git a/src/bin/scripts/t/010_clusterdb.pl b/src/bin/scripts/t/010_clusterdb.pl
index b1d4185..5d8c24e 100644
--- a/src/bin/scripts/t/010_clusterdb.pl
+++ b/src/bin/scripts/t/010_clusterdb.pl
@@ -13,14 +13,13 @@ my $node = get_new_node();
 $node->init;
 $node->start;
 
-$ENV{PGPORT} = $node->port;
-
 $node->issues_sql_like(
 	['clusterdb'],
 	qr/statement: CLUSTER;/,
 	'SQL CLUSTER run');
 
-command_fails([ 'clusterdb', '-t', 'nonexistent' ],
+$node->node_command_fails(
+	[ 'clusterdb', '-t', 'nonexistent' ],
 	'fails with nonexistent table');
 
 $node->psql('postgres',
diff --git a/src/bin/scripts/t/020_createdb.pl b/src/bin/scripts/t/020_createdb.pl
index 09efdc6..7fd5893 100644
--- a/src/bin/scripts/t/020_createdb.pl
+++ b/src/bin/scripts/t/020_createdb.pl
@@ -12,7 +12,6 @@ program_options_handling_ok('createdb');
 my $node = get_new_node();
 $node->init;
 $node->start;
-$ENV{PGPORT} = $node->port;
 
 $node->issues_sql_like(
 	[ 'createdb', 'foobar1' ],
@@ -23,4 +22,6 @@ $node->issues_sql_like(
 	qr/statement: CREATE DATABASE foobar2 ENCODING 'LATIN1'/,
 	'create database with encoding');
 
-command_fails([ 'createdb', 'foobar1' ], 'fails if database already exists');
+$node->node_command_fails(
+	[ 'createdb', 'foobar1' ],
+	'fails if database already exists');
diff --git a/src/bin/scripts/t/030_createlang.pl b/src/bin/scripts/t/030_createlang.pl
index a323bbf..34d7cac 100644
--- a/src/bin/scripts/t/030_createlang.pl
+++ b/src/bin/scripts/t/030_createlang.pl
@@ -14,9 +14,8 @@ $node->init;
 $node->start;
 
 $ENV{PGDATABASE} = 'postgres';
-$ENV{PGPORT}     = $node->port;
 
-command_fails([ 'createlang', 'plpgsql' ],
+$node->node_command_fails([ 'createlang', 'plpgsql' ],
 	'fails if language already exists');
 
 $node->psql('postgres', 'DROP EXTENSION plpgsql');
@@ -25,4 +24,7 @@ $node->issues_sql_like(
 	qr/statement: CREATE EXTENSION "plpgsql"/,
 	'SQL CREATE EXTENSION run');
 
-command_like([ 'createlang', '--list' ], qr/plpgsql/, 'list output');
+$node->node_command_like(
+	[ 'createlang', '--list' ],
+	qr/plpgsql/,
+	'list output');
diff --git a/src/bin/scripts/t/040_createuser.pl b/src/bin/scripts/t/040_createuser.pl
index 760b437..1642f45 100644
--- a/src/bin/scripts/t/040_createuser.pl
+++ b/src/bin/scripts/t/040_createuser.pl
@@ -13,8 +13,6 @@ my $node = get_new_node();
 $node->init;
 $node->start;
 
-$ENV{PGPORT} = $node->port;
-
 $node->issues_sql_like(
 	[ 'createuser', 'user1' ],
 qr/statement: CREATE ROLE user1 NOSUPERUSER NOCREATEDB NOCREATEROLE INHERIT LOGIN;/,
@@ -32,4 +30,6 @@ $node->issues_sql_like(
 qr/statement: CREATE ROLE user3 SUPERUSER CREATEDB CREATEROLE INHERIT LOGIN;/,
 	'create a superuser');
 
-command_fails([ 'createuser', 'user1' ], 'fails if role already exists');
+$node->node_command_fails(
+	[ 'createuser', 'user1' ],
+	'fails if role already exists');
diff --git a/src/bin/scripts/t/050_dropdb.pl b/src/bin/scripts/t/050_dropdb.pl
index 50ee604..67ff243 100644
--- a/src/bin/scripts/t/050_dropdb.pl
+++ b/src/bin/scripts/t/050_dropdb.pl
@@ -12,7 +12,6 @@ program_options_handling_ok('dropdb');
 my $node = get_new_node();
 $node->init;
 $node->start;
-$ENV{PGPORT} = $node->port;
 
 $node->psql('postgres', 'CREATE DATABASE foobar1');
 $node->issues_sql_like(
@@ -20,4 +19,6 @@ $node->issues_sql_like(
 	qr/statement: DROP DATABASE foobar1/,
 	'SQL DROP DATABASE run');
 
-command_fails([ 'dropdb', 'nonexistent' ], 'fails with nonexistent database');
+$node->node_command_fails(
+	[ 'dropdb', 'nonexistent' ],
+	'fails with nonexistent database');
diff --git a/src/bin/scripts/t/060_droplang.pl b/src/bin/scripts/t/060_droplang.pl
index 43720fb..46a9eee 100644
--- a/src/bin/scripts/t/060_droplang.pl
+++ b/src/bin/scripts/t/060_droplang.pl
@@ -12,13 +12,12 @@ program_options_handling_ok('droplang');
 my $node = get_new_node();
 $node->init;
 $node->start;
-$ENV{PGPORT} = $node->port;
 
 $node->issues_sql_like(
 	[ 'droplang', 'plpgsql', 'postgres' ],
 	qr/statement: DROP EXTENSION "plpgsql"/,
 	'SQL DROP EXTENSION run');
 
-command_fails(
+$node->node_command_fails(
 	[ 'droplang', 'nonexistent', 'postgres' ],
 	'fails with nonexistent language');
diff --git a/src/bin/scripts/t/070_dropuser.pl b/src/bin/scripts/t/070_dropuser.pl
index 5a452c4..47913ce 100644
--- a/src/bin/scripts/t/070_dropuser.pl
+++ b/src/bin/scripts/t/070_dropuser.pl
@@ -12,7 +12,6 @@ program_options_handling_ok('dropuser');
 my $node = get_new_node();
 $node->init;
 $node->start;
-$ENV{PGPORT} = $node->port;
 
 $node->psql('postgres', 'CREATE ROLE foobar1');
 $node->issues_sql_like(
@@ -20,4 +19,6 @@ $node->issues_sql_like(
 	qr/statement: DROP ROLE foobar1/,
 	'SQL DROP ROLE run');
 
-command_fails([ 'dropuser', 'nonexistent' ], 'fails with nonexistent user');
+$node->node_command_fails(
+	[ 'dropuser', 'nonexistent' ],
+	'fails with nonexistent user');
diff --git a/src/bin/scripts/t/080_pg_isready.pl b/src/bin/scripts/t/080_pg_isready.pl
index ca512c1..5f107bc 100644
--- a/src/bin/scripts/t/080_pg_isready.pl
+++ b/src/bin/scripts/t/080_pg_isready.pl
@@ -15,6 +15,6 @@ my $node = get_new_node();
 $node->init;
 $node->start;
 
-$ENV{PGPORT} = $node->port;
-
-command_ok(['pg_isready'], 'succeeds with server running');
+$node->node_command_ok(
+	['pg_isready'],
+	'succeeds with server running');
diff --git a/src/test/perl/PostgresNode.pm b/src/test/perl/PostgresNode.pm
index 76a935d..c1fd45f 100644
--- a/src/test/perl/PostgresNode.pm
+++ b/src/test/perl/PostgresNode.pm
@@ -423,6 +423,33 @@ sub poll_query_until
 	return 0;
 }
 
+sub node_command_ok
+{
+	my ($self, $cmd, $test_name) = @_;
+
+	local $ENV{PGPORT} = $self->port;
+
+	TestLib::command_ok($cmd, $test_name);
+}
+
+sub node_command_fails
+{
+	my ($self, $cmd, $test_name) = @_;
+
+	local $ENV{PGPORT} = $self->port;
+
+	TestLib::command_fails($cmd, $test_name);
+}
+
+sub node_command_like
+{
+	my ($self, $cmd, $test_name) = @_;
+
+	local $ENV{PGPORT} = $self->port;
+
+	TestLib::command_like($cmd, $test_name);
+}
+
 # Run a command on the node, then verify that $expected_sql appears in the
 # server log file.
 sub issues_sql_like
-- 
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