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/cvs/AnyEvent-DBI/t/01_fake_mysql.t
Revision: 1.1
Committed: Tue Jun 2 16:16:03 2009 UTC (15 years ago) by root
Content type: application/x-troff
Branch: MAIN
Log Message:
big patch by adam

File Contents

# Content
1 #!/usr/bin/perl
2 BEGIN {
3 my $server_pid;
4 eval {
5 require DBIx::MyServer;
6 require DBIx::MyServer::DBI;
7 };
8 if ($@) {
9 require Test::More;
10 import Test::More skip_all => 'these tests require DBIx::MyServer';
11 exit 0;
12 }
13 }
14
15 use List::Util qw( sum );
16 use Cwd qw( abs_path );
17 use File::Basename qw( dirname );
18 use AnyEvent::DBI;
19 my $topdir = dirname(abs_path($0));
20
21 # fork off a child to be a mysql server
22 my $server_pid = fork;
23 if (! $server_pid ) {
24 exec "$^X $topdir/fake-mysql --config $topdir/myserver.conf";
25 die 'exec failed';
26 }
27
28 # the parent is the test script
29 eval {
30 require Test::More;
31 import Test::More tests => 34;
32 };
33 if ($@) {
34 print 'ok 1 # skip this test requires Test::More'."\n";
35 exit 0;
36 }
37
38 # wait for server
39 sleep 1;
40 my $cv = AnyEvent->condvar;
41 my $dbh = new AnyEvent::DBI(
42 "dbi:mysql:database=database;host=127.0.0.1;port=23306",'','',
43 PrintError => 0,
44 timeout => 2,
45 on_error => sub { },
46 on_connect => sub {
47 if (! $_[0]) {
48 $cv->send($@);
49 }
50 else {
51 $cv->send();
52 }
53 },
54 );
55 my $connect_error = $cv->recv();
56 is($connect_error,undef,'on_connect() called without error, fake mysql server is connected');
57
58 # issue a query
59 $cv = AnyEvent->condvar;
60 $dbh->exec (
61 "select a,b,c from rows14 where num=?", 10, sub {
62 my ($dbh,$rows, $metadata) = @_;
63 if (! $dbh) {
64 $cv->send($@);
65 }
66 else {
67 $cv->send(undef,$rows);
68 }
69 }
70 );
71 my ($error, $rows) = $cv->recv();
72 #print "@$_\n" for @$rows;
73 is($error,undef,'query returns no errors');
74 is(scalar @$rows,14,'query found 14 rows');
75 is(scalar @{$$rows[0]},3,'first row has 3 data');
76
77 # issue a query that returns an error
78 $cv = AnyEvent->condvar;
79 $dbh->exec (
80 "select a,b,c from nosuchtable", sub {
81 my ($dbh,$rows, $metadata) = @_;
82 if (! $dbh) {
83 $cv->send($@);
84 }
85 else {
86 $cv->send(undef,$rows);
87 }
88 }
89 );
90 ($error, $rows) = $cv->recv();
91 is($error,qq{Table 'database.nosuchtable' doesn't exist},'SELECT on non-existant table returns NONFATAL error');
92
93 # good query after bad
94 $cv = AnyEvent->condvar;
95 $dbh->exec (
96 "select a,b,c from rows14 where num=?", 10, sub {
97 my ($dbh,$rows, $metadata) = @_;
98 if (! $dbh) {
99 $cv->send($@);
100 }
101 else {
102 $cv->send(undef,$rows);
103 }
104 }
105 );
106 ($error, $rows) = $cv->recv();
107 #print "@$_\n" for @$rows;
108 is($error,undef,'good query after bad returns no errors');
109 is(scalar @$rows,14,'query found 14 rows');
110 is(scalar @{$$rows[0]},3,'first row has 3 data');
111
112 ############################################################################
113 # enque a series of alternating good/bad queries
114 $cv = AnyEvent->condvar;
115 my @results = ();
116 my $num_qry = 0;
117 my $qrydone = sub {
118 my ($dbh,$rows,$metadata) = @_;
119 my $err = undef;
120 if (! $dbh) {
121 $err = $@;
122 }
123 push @results , [$err,$rows];
124 if (scalar @results == $num_qry) {
125 $cv->send();
126 }
127 };
128
129 $dbh->exec ("select a,b,c from nosuchtable1", $qrydone); $num_qry++;
130 $dbh->exec ("select a,b,c from rows1" , $qrydone); $num_qry++;
131 $dbh->exec ("select a,b,c from nosuchtable2", $qrydone); $num_qry++;
132 $dbh->exec ("select a,b,c from rows2" , $qrydone); $num_qry++;
133 $dbh->exec ("select a,b,c from nosuchtable3", $qrydone); $num_qry++;
134 $dbh->exec ("select a,b,c from rows3" , $qrydone); $num_qry++;
135 $dbh->exec ("select a,b,c from nosuchtable4", $qrydone); $num_qry++;
136 $dbh->exec ("select a,b,c from rows4" , $qrydone); $num_qry++;
137
138 $cv->recv();
139 for my $r (0..$num_qry-1) {
140 my $offset = int($r / 2 )+1;
141 if ($r % 2) {
142 ok(! defined $results[$r]->[0],'Multi Query Queue: No error on good queries');
143 is(scalar @{$results[$r]->[1]},$offset,'Multi Query Queue: Good query got right number of rows');
144 }
145 else {
146 is(
147 $results[$r]->[0],
148 qq{Table 'database.nosuchtable$offset' doesn't exist},'Multi Query Queue: Bad query gets correct error'
149 );
150 }
151 }
152
153 ############################################################################
154
155 # try to connect to a closed port
156 # NOTE tcp port 9 is 'discard', hopefully not running
157 $cv = AnyEvent->condvar;
158 my $dbh2 = new AnyEvent::DBI(
159 "dbi:mysql:database=test;host=127.0.0.1;port=9",'','',
160 PrintError => 0,
161 timeout => 3,
162 on_error => sub { },
163 on_connect => sub {
164 if (! $_[0]) {
165 $cv->send($@);
166 }
167 else {
168 $cv->send();
169 }
170 },
171 );
172 $connect_error = $cv->recv();
173 like($connect_error,qr{can't connect}i,'mysql connect to localhost:9 refused');
174
175 # try to connect to a firewalled port
176 $cv = AnyEvent->condvar;
177 $dbh2 = new AnyEvent::DBI(
178 "dbi:mysql:database=test;host=www.google.com;port=23306",'','',
179 timeout => 3,
180 on_error => sub { },
181 on_connect => sub {
182 if (! $_[0]) {
183 $cv->send($@);
184 }
185 else {
186 $cv->send();
187 }
188 },
189 );
190 $connect_error = $cv->recv();
191 is($connect_error,'TIMEOUT','mysql connect to google port 23306 times out');
192 undef $dbh2;
193
194 # issue a query which times out
195 $cv = AnyEvent->condvar;
196 $dbh->exec (
197 "select a,b,c from delay10 where num=?", 10, sub {
198 my ($dbh,$rows, $metadata) = @_;
199 if (! $dbh) {
200 $cv->send($@);
201 }
202 else {
203 $cv->send(undef,$rows);
204 }
205 }
206 );
207 ($error,$rows) = $cv->recv();
208 is($error,'TIMEOUT','timeout fires during long-running query');
209
210 # issue a query after a fatal timeout error
211 $cv = AnyEvent->condvar;
212 my $start = AnyEvent->now;
213 my $run = 10;
214 my $ran = 0;
215 my $fin = 0;
216 my $errs = [];
217 while ($ran++ < $run) {
218 $dbh->exec (
219 "select d,e,f,g from rows5 where num=?", 10, sub {
220 my ($dbh,$rows, $metadata) = @_;
221 if (! $dbh) {
222 push @$errs, $@;
223 }
224 if (++$fin == $run) {
225 $cv->send();
226 }
227 }
228 );
229 }
230 $cv->recv();
231 ok(AnyEvent->now -$start < 0.0001,'invalid db handle returns from multiple queries immediately');
232 is (scalar @$errs, 10, 'invalid db handle returned error for all enqueued queries');
233 is($errs->[0],'NO DATABASE CONNECTION','invalid db handle returns correct error');
234 undef $dbh;
235
236 # check for server process leakage
237 eval {
238 require Proc::Exists;
239 import Proc::Exists qw(pexists);
240 };
241 my $has_pe = ! $@;
242 SKIP: {
243 skip ( 'This test requires Proc::Exists',4) unless $has_pe;
244 # connect three handles
245 $cv = AnyEvent->condvar;
246 my @handles;
247 my @handle_errors;
248 my $connected =0;
249 for (0..2) {
250 my $dbh3 = new AnyEvent::DBI(
251 "dbi:mysql:database=database;host=127.0.0.1;port=23306",'','',
252 PrintError => 0,
253 timeout => 2,
254 on_error => sub { },
255 on_connect => sub {
256 if (! $_[0]) {
257 push @handle_errors, $@;
258 }
259 if (++$connected == 3) {
260 $cv->send();
261 }
262 },
263 );
264 push @handles, $dbh3;
265 }
266 $cv->recv();
267 is(scalar @handles,3,'created three handles');
268 is(scalar @handle_errors,0,'no errors during handle creation');
269 my @pids = map {$_->_server_pid} @handles;
270 ok( defined pexists(@pids, {all=>1}),'Found three start_serve processes');
271 undef @handles;
272
273 $cv = AnyEvent->condvar;
274 my $cleanup = AnyEvent->timer(after=>0.5,cb=>sub {$cv->send()});
275 $cv->recv();
276 ok(!defined pexists(@pids, {any=>1}),'All start_serve processes exited');
277 }
278
279 # connect to the server again
280 $cv = AnyEvent->condvar;
281 $dbh = new AnyEvent::DBI(
282 "dbi:mysql:database=database;host=127.0.0.1;port=23306",'','',
283 PrintError => 0,
284 timeout => 2,
285 on_error => sub { },
286 on_connect => sub {
287 if (! $_[0]) {
288 $cv->send($@);
289 }
290 else {
291 $cv->send();
292 }
293 },
294 );
295 $connect_error = $cv->recv();
296 is($connect_error,undef,'on_connect() called without error, fake mysql server is re-connected');
297
298 # End the server and reap it
299 $cv = AnyEvent->condvar;
300 my $server_process_watcher = AnyEvent->child(
301 pid => $server_pid ,
302 cb => sub {
303 $cv->send(@_);
304 }
305 );
306 kill 2, $server_pid;
307 my ($dead_pid,$dead_status)=$cv->recv();
308 is ($dead_pid,$server_pid,'MySQL Server processess exited');
309 is ($dead_status,2,'Server exited on our signal');
310 sleep 2; # give all mysql server children a chance to exit
311
312 # try to make another query with a down MYSQL server
313 # issue a query
314 $cv = AnyEvent->condvar;
315 $dbh->exec (
316 "select x from rows1 where num=?", 10, sub {
317 my ($dbh,$rows, $metadata) = @_;
318 if (! $dbh) {
319 $cv->send($@);
320 }
321 else {
322 $cv->send(undef,$rows);
323 }
324 }
325 );
326
327 ($error, $rows) = $cv->recv();
328 is($error,'TIMEOUT','mysql query to dead server times out');
329 undef $dbh;
330
331 END {
332 if ($server_pid) {
333 # shut down the fake_mysql server
334 delete $SIG{CLD};
335 kill 15, $server_pid;
336 waitpid $server_pid,0;
337 }
338 exit 0;
339 }