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1 | #!/usr/bin/perl |
2 | |
3 | use warnings; |
4 | use strict; |
5 | use Test::More qw/no_plan/; |
6 | use Test::Exception; |
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7 | use Test::Differences; |
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8 | use FindBin qw/$Bin/; |
9 | |
10 | use SQL::Translator; |
11 | |
12 | ### Set $ENV{SQLTTEST_RT_DEBUG} = 1 for more output |
13 | |
14 | # What tests to run - parser/producer name, and optional args |
15 | my $plan = [ |
16 | { |
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17 | engine => 'XML', |
18 | }, |
19 | { |
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20 | engine => 'SQLite', |
21 | producer_args => {}, |
22 | parser_args => {}, |
23 | }, |
24 | { |
25 | engine => 'MySQL', |
26 | producer_args => {}, |
27 | parser_args => {}, |
28 | }, |
29 | { |
30 | engine => 'MySQL', |
31 | name => 'MySQL 5.0', |
32 | producer_args => { mysql_version => 5 }, |
33 | parser_args => { mysql_parser_version => 5 }, |
34 | }, |
35 | { |
36 | engine => 'MySQL', |
37 | name => 'MySQL 5.1', |
38 | producer_args => { mysql_version => '5.1' }, |
39 | parser_args => { mysql_parser_version => '5.1' }, |
40 | }, |
41 | { |
42 | engine => 'PostgreSQL', |
43 | producer_args => {}, |
44 | parser_args => {}, |
45 | }, |
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46 | { |
47 | engine => 'SQLServer', |
48 | producer_args => {}, |
49 | parser_args => {}, |
50 | }, |
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51 | # { |
52 | # engine => 'Oracle', |
53 | # producer_args => {}, |
54 | # parser_args => {}, |
55 | # }, |
56 | # { |
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57 | # engine => 'Sybase', |
58 | # producer_args => {}, |
59 | # parser_args => {}, |
60 | # }, |
61 | # { |
62 | # engine => 'DB2', |
63 | # producer_args => {}, |
64 | # parser_args => {}, |
65 | # }, |
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66 | |
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67 | # YAML parsing/producing cycles result in some weird self referencing structure |
68 | # { |
69 | # engine => 'YAML', |
70 | # }, |
71 | |
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72 | # There is no Access producer |
73 | # { |
74 | # engine => 'Access', |
75 | # producer_args => {}, |
76 | # parser_args => {}, |
77 | # }, |
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78 | ]; |
79 | |
80 | |
81 | # This data file has the right mix of table/view/procedure/trigger |
82 | # definitions, and lists enough quirks to trip up most combos |
83 | # I am not sure if augmenting it will break other tests - experiment |
84 | my $base_file = "$Bin/data/xml/schema.xml"; |
85 | |
86 | my $base_t = SQL::Translator->new; |
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87 | $base_t->$_ (1) for qw/add_drop_table no_comments/; |
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88 | |
89 | my $base_schema = $base_t->translate ( |
90 | parser => 'XML', |
91 | file => $base_file, |
92 | ) or die $base_t->error; |
93 | |
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94 | #assume there is at least one table |
95 | my $string_re = { |
96 | XML => qr/<tables>\s*<table/, |
97 | YAML => qr/\A---\n.+tables\:/s, |
98 | SQL => qr/^\s*CREATE TABLE/m, |
99 | }; |
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100 | |
101 | for my $args (@$plan) { |
102 | |
103 | $args->{name} ||= $args->{engine}; |
104 | |
105 | lives_ok ( |
106 | sub { check_roundtrip ($args, $base_schema) }, |
107 | "Round trip for $args->{name} did not throw an exception", |
108 | ); |
109 | } |
110 | |
111 | |
112 | sub check_roundtrip { |
113 | my ($args, $base_schema) = @_; |
114 | my $base_t = $base_schema->translator; |
115 | |
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116 | # create some output from the submitted schema |
117 | my $base_out = $base_t->translate ( |
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118 | data => $base_schema, |
119 | producer => $args->{engine}, |
120 | producer_args => $args->{producer_args}, |
121 | ); |
122 | |
123 | like ( |
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124 | $base_out, |
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125 | $string_re->{$args->{engine}} || $string_re->{SQL}, |
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126 | "Received some meaningful output from the first $args->{name} production", |
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127 | ) or do { |
128 | diag ( _gen_diag ($base_t->error) ); |
129 | return; |
130 | }; |
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131 | |
132 | # parse the sql back |
133 | my $parser_t = SQL::Translator->new; |
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134 | $parser_t->$_ (1) for qw/add_drop_table no_comments/; |
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135 | my $mid_schema = $parser_t->translate ( |
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136 | data => $base_out, |
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137 | parser => $args->{engine}, |
138 | parser_args => $args->{parser_args}, |
139 | ); |
140 | |
141 | isa_ok ($mid_schema, 'SQL::Translator::Schema', "First $args->{name} parser pass produced a schema:") |
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142 | or do { |
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143 | diag (_gen_diag ( $parser_t->error, $base_out ) ); |
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144 | return; |
145 | }; |
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146 | |
147 | # schemas should be comparable at least as far as table/field numbers go |
148 | is_deeply ( |
149 | _get_table_info ($mid_schema->get_tables), |
150 | _get_table_info ($base_schema->get_tables), |
151 | "Schema tables generally match afer $args->{name} parser trip", |
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152 | ) or return; |
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153 | |
154 | # and produce sql once again |
155 | |
156 | # Producing a schema with a Translator different from the one the schema was generated |
157 | # from does not work. This is arguably a bug, 61translator_agnostic.t works with that |
158 | # my $producer_t = SQL::Translator->new; |
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159 | # $producer_t->$_ (1) for qw/add_drop_table no_comments/; |
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160 | |
161 | # my $rt_sql = $producer_t->translate ( |
162 | # data => $mid_schema, |
163 | # producer => $args->{engine}, |
164 | # producer_args => $args->{producer_args}, |
165 | # ); |
166 | |
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167 | my $rt_out = $parser_t->translate ( |
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168 | data => $mid_schema, |
169 | producer => $args->{engine}, |
170 | producer_args => $args->{producer_args}, |
171 | ); |
172 | |
173 | like ( |
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174 | $rt_out, |
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175 | $string_re->{$args->{engine}} || $string_re->{SQL}, |
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176 | "Received some meaningful output from the second $args->{name} production", |
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177 | ) or do { |
178 | diag ( _gen_diag ( $parser_t->error ) ); |
179 | return; |
180 | }; |
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181 | |
182 | # the two sql strings should be identical |
183 | my $msg = "$args->{name} SQL roundtrip successful - SQL statements match"; |
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184 | $ENV{SQLTTEST_RT_DEBUG} #stringify below because IO::Scalar does not behave nice |
185 | ? eq_or_diff ("$rt_out", "$base_out", $msg) |
186 | : ok ("$rt_out" eq "$base_out", $msg) |
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187 | ; |
188 | } |
189 | |
190 | sub _get_table_info { |
191 | my @tables = @_; |
192 | |
193 | my @info; |
194 | |
195 | for my $t (@tables) { |
196 | push @info, { |
197 | name => $t->name, |
198 | fields => [ |
199 | map { $_->name } ($t->get_fields), |
200 | ], |
201 | }; |
202 | } |
203 | |
204 | return \@info; |
205 | } |
206 | |
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207 | # takes an error string and an optional output block |
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208 | # returns the string conctenated with a line-numbered block for |
209 | # easier reading |
210 | sub _gen_diag { |
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211 | my ($err, $out) = @_; |
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212 | |
213 | return 'Unknown error' unless $err; |
214 | |
215 | |
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216 | if ($out and $ENV{SQLTTEST_RT_DEBUG}) { |
217 | my @lines; |
218 | for (split /\n/, $out) { |
219 | push @lines, sprintf ('%03d: %s', |
220 | scalar @lines + 1, |
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221 | $_, |
222 | ); |
223 | } |
224 | |
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225 | return "$err\n\n" . join ("\n", @lines); |
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226 | } |
227 | |
228 | return $err; |
229 | } |