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1 | use warnings; |
2 | use strict; |
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3 | |
4 | use Test::More; |
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5 | use Test::Exception; |
6 | |
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7 | use SQL::Abstract::Test import => [qw(is_same_sql dumper)]; |
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8 | use SQL::Abstract::Tree; |
9 | |
10 | my $sqlat = SQL::Abstract::Tree->new; |
11 | |
12 | my @sql = ( |
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13 | "INSERT INTO artist DEFAULT VALUES", |
14 | "INSERT INTO artist VALUES ()", |
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15 | "SELECT a, b, c FROM foo WHERE foo.a = 1 and foo.b LIKE 'station'", |
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16 | "SELECT COUNT( * ) FROM foo", |
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17 | "SELECT COUNT( * ), SUM( blah ) FROM foo", |
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18 | "SELECT * FROM (SELECT * FROM foobar) WHERE foo.a = 1 and foo.b LIKE 'station'", |
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19 | "SELECT * FROM lolz WHERE ( foo.a = 1 ) and foo.b LIKE 'station'", |
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20 | "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]", |
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21 | "SELECT * FROM foo WHERE NOT EXISTS (SELECT bar FROM baz)", |
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22 | "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'", |
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23 | "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'", |
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24 | "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 ) ) ) )", |
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25 | "SELECT foo AS bar FROM baz ORDER BY x + ? DESC, oomph, y - ? DESC, unf, baz.g / ? ASC, buzz * 0 DESC, foo DESC, ickk ASC", |
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26 | "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", |
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27 | "SELECT * FROM foo WHERE foo.a @@ to_tsquery('word')", |
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28 | "SELECT * FROM foo ORDER BY name + ?, [me].[id]", |
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29 | "SELECT foo AS bar FROM baz ORDER BY x + ? DESC, baz.g", |
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30 | # deliberate batshit insanity |
31 | "SELECT foo FROM bar WHERE > 12", |
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32 | ); |
33 | |
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34 | # FIXME FIXME FIXME |
35 | # The formatter/unparser accumulated a ton of technical debt, |
36 | # and I don't have time to fix it all :( Some of the problems: |
37 | # - format() does an implicit parenthesis unroll for prettyness |
38 | # which makes it hard to do exact comparisons |
39 | # - there is no space preservation framework (also makes comparisons |
40 | # problematic) |
41 | # - there is no operator case preservation framework either |
42 | # |
43 | # So what we do instead is resort to some monkey patching and |
44 | # lowercasing and stuff to get something we can compare to the |
45 | # original SQL string |
46 | # Ugly but somewhat effective |
47 | |
48 | for my $orig (@sql) { |
49 | my $plain_formatted = $sqlat->format($orig); |
50 | is_same_sql( $plain_formatted, $orig, 'Formatted string is_same_sql()-matched' ); |
51 | |
52 | my $ast = $sqlat->parse($orig); |
53 | my $reassembled = do { |
54 | no warnings 'redefine'; |
55 | local *SQL::Abstract::Tree::_parenthesis_unroll = sub {}; |
56 | $sqlat->unparse($ast); |
57 | }; |
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58 | |
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59 | # deal with whitespace around parenthesis readjustment |
60 | $_ =~ s/ \s* ( [ \(\) ] ) \s* /$1/gx |
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61 | for ($orig, $reassembled); |
62 | |
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63 | is ( |
64 | lc($reassembled), |
65 | lc($orig), |
66 | sprintf( 'roundtrip works (%s...)', substr $orig, 0, 20 ) |
67 | ) or do { |
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68 | my ($ast1, $ast2) = map { dumper( $sqlat->parse($_) ) } ( $orig, $reassembled ); |
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69 | |
70 | note "ast1: $ast1"; |
71 | note "ast2: $ast2"; |
72 | }; |
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73 | } |
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74 | |
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75 | # this is invalid SQL, we are just checking that the parser |
76 | # does not inadvertently make it right |
77 | my $sql = 'SELECT * FROM foo WHERE x IN ( ( 1 ) )'; |
78 | is( |
79 | $sqlat->unparse($sqlat->parse($sql)), |
80 | $sql, |
81 | 'Multi-parens around IN survive', |
82 | ); |
83 | |
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84 | lives_ok { $sqlat->unparse( $sqlat->parse( <<'EOS' ) ) } 'Able to parse/unparse grossly malformed sql'; |
85 | SELECT |
86 | ( |
87 | SELECT *, * FROM EXISTS bar JOIN ON a = b |
88 | NOT WHERE c !!= d |
89 | ), |
90 | NOT x, |
91 | ( |
92 | SELECT * FROM bar WHERE NOT NOT EXISTS (SELECT 1) |
93 | ), |
94 | WHERE NOT NOT 1 AND OR foo IN (1,2,,,3,,,), |
95 | GROUP BY bar |
96 | |
97 | EOS |
98 | |
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99 | done_testing; |