use warnings;
use strict;
use Test::More;
use Test::Exception;
use SQL::Abstract::Test import => [qw(is_same_sql dumper)];
use SQL::Abstract::Tree;
my $sqlat = SQL::Abstract::Tree->new;
my @sql = (
"INSERT INTO artist DEFAULT VALUES",
"INSERT INTO artist VALUES ()",
"SELECT a, b, c FROM foo WHERE foo.a = 1 and foo.b LIKE 'station'",
"SELECT COUNT( * ) FROM foo",
"SELECT COUNT( * ), SUM( blah ) FROM foo",
"SELECT * FROM (SELECT * FROM foobar) WHERE foo.a = 1 and foo.b LIKE 'station'",
"SELECT * FROM lolz WHERE ( foo.a = 1 ) and foo.b LIKE 'station'",
"SELECT [screen].[id], [screen].[name], [screen].[section_id], [screen].[xtype] FROM [users_roles] [me] JOIN [roles] [role] ON [role].[id] = [me].[role_id] JOIN [roles_permissions] [role_permissions] ON [role_permissions].[role_id] = [role].[id] JOIN [permissions] [permission] ON [permission].[id] = [role_permissions].[permission_id] JOIN [permissionscreens] [permission_screens] ON [permission_screens].[permission_id] = [permission].[id] JOIN [screens] [screen] ON [screen].[id] = [permission_screens].[screen_id] WHERE ( [me].[user_id] = ? ) GROUP BY [screen].[id], [screen].[name], [screen].[section_id], [screen].[xtype]",
"SELECT * FROM foo WHERE NOT EXISTS (SELECT bar FROM baz)",
"SELECT * FROM (SELECT SUM (CASE WHEN me.artist = 'foo' THEN 1 ELSE 0 END AS artist_sum) FROM foobar) WHERE foo.a = 1 and foo.b LIKE 'station'",
"SELECT * FROM (SELECT SUM (CASE WHEN GETUTCDATE() > DATEADD(second, 4 * 60, last_checkin) THEN 1 ELSE 0 END) FROM foobar) WHERE foo.a = 1 and foo.b LIKE 'station'",
"SELECT COUNT( * ) FROM foo me JOIN bar rel_bar ON rel_bar.id_bar = me.fk_bar WHERE NOT EXISTS (SELECT inner_baz.id_baz FROM baz inner_baz WHERE ( ( inner_baz.fk_a != ? AND ( fk_bar = me.fk_bar AND name = me.name ) ) ) )",
"SELECT foo AS bar FROM baz ORDER BY x + ? DESC, oomph, y - ? DESC, unf, baz.g / ? ASC, buzz * 0 DESC, foo DESC, ickk ASC",
"SELECT inner_forum_roles.forum_id FROM forum_roles AS inner_forum_roles LEFT JOIN user_roles AS inner_user_roles USING(user_role_type_id) WHERE inner_user_roles.user_id = users__row.user_id",
"SELECT * FROM foo WHERE foo.a @@ to_tsquery('word')",
"SELECT * FROM foo ORDER BY name + ?, [me].[id]",
"SELECT foo AS bar FROM baz ORDER BY x + ? DESC, baz.g",
"SELECT [me].[id], ROW_NUMBER() OVER (ORDER BY (SELECT 1)) AS [rno__row__index] FROM ( SELECT [me].[id] FROM [LogParents] [me]) [me]",
# deliberate batshit insanity
"SELECT foo FROM bar WHERE > 12",
);
# FIXME FIXME FIXME
# The formatter/unparser accumulated a ton of technical debt,
# and I don't have time to fix it all :( Some of the problems:
# - format() does an implicit parenthesis unroll for prettyness
# which makes it hard to do exact comparisons
# - there is no space preservation framework (also makes comparisons
# problematic)
# - there is no operator case preservation framework either
#
# So what we do instead is resort to some monkey patching and
# lowercasing and stuff to get something we can compare to the
# original SQL string
# Ugly but somewhat effective
for my $orig (@sql) {
my $plain_formatted = $sqlat->format($orig);
is_same_sql( $plain_formatted, $orig, 'Formatted string is_same_sql()-matched' );
my $ast = $sqlat->parse($orig);
my $reassembled = do {
no warnings 'redefine';
local *SQL::Abstract::Tree::_parenthesis_unroll = sub {};
$sqlat->unparse($ast);
};
# deal with whitespace around parenthesis readjustment
$_ =~ s/ \s* ( [ \(\) ] ) \s* /$1/gx
for ($orig, $reassembled);
is (
lc($reassembled),
lc($orig),
sprintf( 'roundtrip works (%s...)', substr $orig, 0, 20 )
) or do {
my ($ast1, $ast2) = map { dumper( $sqlat->parse($_) ) } ( $orig, $reassembled );
note "ast1: $ast1";
note "ast2: $ast2";
};
}
# this is invalid SQL, we are just checking that the parser
# does not inadvertently make it right
my $sql = 'SELECT * FROM foo WHERE x IN ( ( 1 ) )';
is(
$sqlat->unparse($sqlat->parse($sql)),
$sql,
'Multi-parens around IN survive',
);
lives_ok { $sqlat->unparse( $sqlat->parse( <<'EOS' ) ) } 'Able to parse/unparse grossly malformed sql';
SELECT
(
SELECT *, * FROM EXISTS bar JOIN ON a = b
NOT WHERE c !!= d
),
NOT x,
(
SELECT * FROM bar WHERE NOT NOT EXISTS (SELECT 1)
),
WHERE NOT NOT 1 AND OR foo IN (1,2,,,3,,,),
GROUP BY bar
EOS
done_testing;