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1 | #!./perl -w |
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2 | |
3 | BEGIN { |
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4 | chdir 't' if -d 't'; |
5 | @INC = '../lib'; |
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6 | } |
7 | |
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8 | # symbolic references used later |
9 | use strict qw( vars subs ); |
10 | |
11 | # @DB::dbline values have both integer and string components (Benjamin Goldberg) |
12 | use Scalar::Util qw( dualvar ); |
13 | my $dualfalse = dualvar(0, 'false'); |
14 | my $dualtrue = dualvar(1, 'true'); |
15 | |
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16 | use Test::More tests => 106; |
17 | |
18 | # must happen at compile time for DB:: package variable localizations to work |
19 | BEGIN { |
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20 | use_ok( 'DB' ); |
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21 | } |
22 | |
23 | # test DB::sub() |
24 | { |
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25 | my $callflag = 0; |
26 | local $DB::sub = sub { |
27 | $callflag += shift || 1; |
28 | my @vals = (1, 4, 9); |
29 | return @vals; |
30 | }; |
31 | my $ret = DB::sub; |
32 | is( $ret, 3, 'DB::sub() should handle scalar context' ); |
33 | is( $callflag, 1, '... should call $DB::sub contents' ); |
34 | $ret = join(' ', DB::sub(2)); |
35 | is( $ret, '1 4 9', '... should handle scalar context' ); |
36 | is( $callflag, 3, '... should pass along arguments to the sub' ); |
37 | ok( defined($DB::ret),'$DB::ret should be defined after successful return'); |
38 | DB::sub; |
39 | ok( !defined($DB::ret), '... should respect void context' ); |
40 | $DB::sub = '::DESTROY'; |
41 | ok( !defined($DB::ret), '... should return undef for DESTROY()' ); |
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42 | } |
43 | |
44 | # test DB::DB() |
45 | { |
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46 | ok( ! defined DB::DB(), |
47 | 'DB::DB() should return undef if $DB::ready is false'); |
48 | is( DB::catch(), 1, 'DB::catch() should work' ); |
49 | is( DB->skippkg('foo'), 1, 'DB->skippkg() should push args' ); |
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50 | |
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51 | # change packages to mess with caller() |
52 | package foo; |
53 | ::ok( ! defined DB::DB(), 'DB::DB() should skip skippable packages' ); |
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54 | |
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55 | package main; |
56 | is( $DB::filename, $0, '... should set $DB::filename' ); |
57 | is( $DB::lineno, __LINE__ - 4, '... should set $DB::lineno' ); |
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58 | |
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59 | DB::DB(); |
60 | # stops at line 94 |
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61 | } |
62 | |
63 | # test DB::save() |
64 | { |
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65 | no warnings 'uninitialized'; |
66 | |
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67 | # assigning a number to $! seems to produce an error message, when read |
68 | local ($@, $,, $/, $\, $^W, $!) = (1 .. 5); |
69 | DB::save(); |
70 | is( "$@$!$,$/$\$^W", "1\n0", 'DB::save() should reset punctuation vars' ); |
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71 | } |
72 | |
73 | # test DB::catch() |
74 | { |
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75 | local $DB::signal; |
76 | DB::catch(); |
77 | ok( $DB::signal, 'DB::catch() should set $DB::signal' ); |
78 | # add clients and test to see if they are awakened |
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79 | } |
80 | |
81 | # test DB::_clientname() |
82 | is( DB::_clientname('foo=A(1)'), 'foo','DB::_clientname should return refname'); |
83 | is( DB::_clientname('bar'), '','DB::_clientname should not return non refname'); |
84 | |
85 | # test DB::next() and DB::step() |
86 | { |
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87 | local $DB::single; |
88 | DB->next(); |
89 | is( $DB::single, 2, 'DB->next() should set $DB::single to 2' ); |
90 | DB->step(); |
91 | is( $DB::single, 1, 'DB->step() should set $DB::single to 1' ); |
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92 | } |
93 | |
94 | # test DB::cont() |
95 | { |
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96 | # cannot test @stack |
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97 | |
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98 | local $DB::single = 1; |
99 | my $fdb = FakeDB->new(); |
100 | DB::cont($fdb, 2); |
101 | is( $fdb->{tbreak}, 2, 'DB::cont() should set tbreak in object' ); |
102 | is( $DB::single, 0, '... should set $DB::single to 0' ); |
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103 | } |
104 | |
105 | # test DB::ret() |
106 | { |
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107 | # cannot test @stack |
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108 | |
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109 | local $DB::single = 1; |
110 | DB::ret(); |
111 | is( $DB::single, 0, 'DB::ret() should set $DB::single to 0' ); |
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112 | } |
113 | |
114 | # test DB::backtrace() |
115 | { |
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116 | local (@DB::args, $DB::signal); |
117 | |
118 | my $line = __LINE__ + 1; |
119 | my @ret = eval { DB->backtrace() }; |
120 | like( $ret[0], qr/file.+\Q$0\E/, 'DB::backtrace() should report current file'); |
121 | like( $ret[0], qr/line $line/, '... should report calling line number' ); |
122 | like( $ret[0], qr/eval {...}/, '... should catch eval BLOCK' ); |
123 | |
124 | @ret = eval "one(2)"; |
125 | is( scalar @ret, 1, '... should report from provided stack frame number' ); |
126 | like( $ret[0], qr/\@ = &eval \'one.+?2\)\'/, #' |
127 | '... should find eval STRING construct'); |
128 | $ret[0] = check_context(1); |
129 | like( $ret[0], qr/\$ = &main::check_context/, |
130 | '... should respect context of calling construct'); |
131 | |
132 | $DB::signal = 1; |
133 | @DB::args = (1, 7); |
134 | @ret = three(1); |
135 | is( scalar @ret, 1, '... should end loop if $DB::signal is true' ); |
136 | |
137 | # does not check 'require' or @DB::args mangling |
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138 | } |
139 | |
140 | sub check_context { |
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141 | return (eval "one($_[0])")[-1]; |
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142 | } |
143 | sub one { DB->backtrace(@_) } |
144 | sub two { one(@_) } |
145 | sub three { two(@_) } |
146 | |
147 | # test DB::trace_toggle |
148 | { |
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149 | local $DB::trace = 0; |
150 | DB->trace_toggle; |
151 | ok( $DB::trace, 'DB::trace_toggle() should toggle $DB::trace' ); |
152 | DB->trace_toggle; |
153 | ok( !$DB::trace, '... should toggle $DB::trace (back)' ); |
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154 | } |
155 | |
156 | # test DB::subs() |
157 | { |
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158 | local %DB::sub; |
159 | my $subs = DB->subs; |
160 | is( $subs, 0, 'DB::subs() should return keys of %DB::subs' ); |
161 | %DB::sub = ( foo => 'foo:23-45' , bar => 'ba:r:7-890' ); |
162 | $subs = DB->subs; |
163 | is( $subs, 2, '... same song, different key' ); |
164 | my @subs = DB->subs( 'foo', 'boo', 'bar' ); |
165 | is( scalar @subs, 2, '... should report only for requested subs' ); |
166 | my @expected = ( [ 'foo', 23, 45 ], [ 'ba:r', 7, 890 ] ); |
167 | ok( eq_array( \@subs, \@expected ), '... find file, start, end for subs' ); |
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168 | } |
169 | |
170 | # test DB::filesubs() |
171 | { |
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172 | local ($DB::filename, %DB::sub); |
173 | $DB::filename = 'baz'; |
174 | %DB::sub = map { $_ => $_ } qw( bazbar bazboo boobar booboo boobaz ); |
175 | my @ret = DB->filesubs(); |
176 | is( scalar @ret, 2, 'DB::filesubs() should use $DB::filename with no args'); |
177 | @ret = grep { /^baz/ } @ret; |
178 | is( scalar @ret, 2, '... should pick up subs in proper file' ); |
179 | @ret = DB->filesubs('boo'); |
180 | is( scalar @ret, 3, '... should use argument to find subs' ); |
181 | @ret = grep { /^boo/ } @ret; |
182 | is( scalar @ret, 3, '... should pick up subs in proper file with argument'); |
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183 | } |
184 | |
185 | # test DB::files() |
186 | { |
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187 | my $dbf = () = DB::files(); |
188 | my $main = () = grep ( m!^_<!, keys %main:: ); |
189 | is( $dbf, $main, 'DB::files() should pick up filenames from %main::' ); |
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190 | } |
191 | |
192 | # test DB::lines() |
193 | { |
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194 | local @DB::dbline = ( 'foo' ); |
195 | is( DB->lines->[0], 'foo', 'DB::lines() should return ref to @DB::dbline' ); |
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196 | } |
197 | |
198 | # test DB::loadfile() |
199 | SKIP: { |
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200 | local (*DB::dbline, $DB::filename); |
201 | ok( ! defined DB->loadfile('notafile'), |
202 | 'DB::loadfile() should not find unloaded file' ); |
203 | my $file = (grep { m|^_<.+\.pm| } keys %main:: )[0]; |
204 | skip('cannot find loaded file', 3) unless $file; |
205 | $file =~ s/^_<..//; |
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206 | |
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207 | my $db = DB->loadfile($file); |
208 | like( $db, qr!$file\z!, '... should find loaded file from partial name'); |
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209 | |
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210 | is( *DB::dbline, *{ "_<$db" } , |
211 | '... should set *DB::dbline to associated glob'); |
212 | is( $DB::filename, $db, '... should set $DB::filename to file name' ); |
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213 | |
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214 | # test clients |
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215 | } |
216 | |
217 | # test DB::lineevents() |
218 | { |
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219 | use vars qw( *baz ); |
220 | |
221 | local $DB::filename = 'baz'; |
222 | local *baz = *{ "main::_<baz" }; |
223 | |
224 | @baz = map { dualvar(1, $_) } qw( one two three four five ); |
225 | %baz = ( |
226 | 1 => "foo\0bar", |
227 | 3 => "boo\0far", |
228 | 4 => "fazbaz", |
229 | ); |
230 | my %ret = DB->lineevents(); |
231 | is( scalar keys %ret, 3, 'DB::lineevents() should pick up defined lines' ); |
232 | |
233 | # array access in DB::lineevents() starts at element 1, not 0 |
234 | is( join(' ', @{ $ret{1} }), 'two foo bar', '... should stash data in hash'); |
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235 | } |
236 | |
237 | # test DB::set_break() |
238 | { |
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239 | local ($DB::lineno, *DB::dbline, $DB::package); |
240 | |
241 | %DB::dbline = ( |
242 | 1 => "\0", |
243 | 2 => undef, |
244 | 3 => "123\0\0\0abc", |
245 | 4 => "\0abc", |
246 | ); |
247 | |
248 | *DB::dbline = [ $dualfalse, $dualtrue, $dualfalse, $dualfalse, $dualtrue ]; |
249 | |
250 | local %DB::sub = ( |
251 | 'main::foo' => 'foo:1-4', |
252 | ); |
253 | |
254 | DB->set_break(1, 'foo'); |
255 | is( $DB::dbline{1}, "foo\0", 'DB::set_break() should set break condition' ); |
256 | |
257 | $DB::lineno = 1; |
258 | DB->set_break(undef, 'bar'); |
259 | is( $DB::dbline{1}, "bar\0", |
260 | '... should use $DB::lineno without specified line' ); |
261 | |
262 | DB->set_break(4); |
263 | is( $DB::dbline{4}, "1\0abc", '... should use default condition if needed'); |
264 | |
265 | local %DB::sub = ( |
266 | 'main::foo' => 'foo:1-4', |
267 | ); |
268 | DB->set_break('foo', 'baz'); |
269 | is( $DB::dbline{4}, "baz\0abc", |
270 | '... should use _find_subline() to resolve subname' ); |
271 | |
272 | my $db = FakeDB->new(); |
273 | DB::set_break($db, 2); |
274 | like( $db->{output}, qr/2 not break/, '... should respect @DB::dbline' ); |
275 | |
276 | DB::set_break($db, 'nonfoo'); |
277 | like( $db->{output}, qr/not found/, '... should warn on unfound sub' ); |
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278 | } |
279 | |
280 | # test DB::set_tbreak() |
281 | { |
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282 | local ($DB::lineno, *DB::dbline, $DB::package); |
283 | *DB::dbline = [ $dualfalse, $dualtrue, $dualfalse, $dualfalse, $dualtrue ]; |
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284 | |
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285 | DB->set_tbreak(1); |
286 | is( $DB::dbline{1}, ';9', 'DB::set_tbreak() should set tbreak condition' ); |
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287 | |
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288 | local %DB::sub = ( |
289 | 'main::foo' => 'foo:1-4', |
290 | ); |
291 | DB->set_tbreak('foo', 'baz'); |
292 | is( $DB::dbline{4}, ';9', |
293 | '... should use _find_subline() to resolve subname' ); |
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294 | |
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295 | my $db = FakeDB->new(); |
296 | DB::set_tbreak($db, 2); |
297 | like( $db->{output}, qr/2 not break/, '... should respect @DB::dbline' ); |
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298 | |
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299 | DB::set_break($db, 'nonfoo'); |
300 | like( $db->{output}, qr/not found/, '... should warn on unfound sub' ); |
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301 | } |
302 | |
303 | # test DB::_find_subline() |
304 | { |
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305 | my @foo; |
306 | local *{ "::_<foo" } = \@foo; |
307 | |
308 | local $DB::package; |
309 | local %DB::sub = ( |
310 | 'TEST::foo' => 'foo:10-15', |
311 | 'main::foo' => 'foo:11-12', |
312 | 'bar::bar' => 'foo:10-16', |
313 | ); |
314 | |
315 | $foo[11] = $dualtrue; |
316 | |
317 | is( DB::_find_subline('TEST::foo'), 11, |
318 | 'DB::_find_subline() should find fully qualified sub' ); |
319 | is( DB::_find_subline("TEST'foo"), 11, '... should handle old package sep'); |
320 | is( DB::_find_subline('foo'), 11, |
321 | '... should resolve unqualified package name to main::' ); |
322 | |
323 | $DB::package = 'bar'; |
324 | is( DB::_find_subline('bar'), 11, |
325 | '... should resolve unqualified name with $DB::package, if defined' ); |
326 | |
327 | $foo[11] = $dualfalse; |
328 | |
329 | is( DB::_find_subline('TEST::foo'), 15, |
330 | '... should increment past lines with no events' ); |
331 | |
332 | ok( ! defined DB::_find_subline('sirnotappearinginthisfilm'), |
333 | '... should not find nonexistant sub' ); |
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334 | } |
335 | |
336 | # test DB::clr_breaks() |
337 | { |
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338 | local *DB::dbline; |
339 | my %lines = ( |
340 | 1 => "\0", |
341 | 2 => undef, |
342 | 3 => "123\0\0\0abc", |
343 | 4 => "\0\0\0abc", |
344 | ); |
345 | |
346 | %DB::dbline = %lines; |
347 | DB->clr_breaks(1 .. 4); |
348 | is( scalar keys %DB::dbline, 3, 'DB::clr_breaks() should clear breaks' ); |
349 | ok( ! exists($DB::dbline{1}), '... should delete empty actions' ); |
350 | is( $DB::dbline{3}, "\0\0\0abc", '... should remove break, leaving action'); |
351 | is( $DB::dbline{4}, "\0\0\0abc", '... should not remove set actions' ); |
352 | |
353 | local *{ "::_<foo" } = [ 0, 0, 0, 1 ]; |
354 | |
355 | local $DB::package; |
356 | local %DB::sub = ( |
357 | 'main::foo' => 'foo:1-3', |
358 | ); |
359 | |
360 | %DB::dbline = %lines; |
361 | DB->clr_breaks('foo'); |
362 | |
363 | is( $DB::dbline{3}, "\0\0\0abc", |
364 | '... should find lines via _find_subline()' ); |
365 | |
366 | my $db = FakeDB->new(); |
367 | DB::clr_breaks($db, 'abadsubname'); |
368 | is( $db->{output}, "Subroutine not found.\n", |
369 | '... should output warning if sub cannot be found'); |
370 | |
371 | @DB::dbline = (1 .. 4); |
372 | %DB::dbline = (%lines, 5 => "\0" ); |
373 | |
374 | DB::clr_breaks(); |
375 | |
376 | is( scalar keys %DB::dbline, 4, |
377 | 'Relying on @DB::dbline in DB::clr_breaks() should clear breaks' ); |
378 | ok( ! exists($DB::dbline{1}), '... should delete empty actions' ); |
379 | is( $DB::dbline{3}, "\0\0\0abc", '... should remove break, leaving action'); |
380 | is( $DB::dbline{4}, "\0\0\0abc", '... should not remove set actions' ); |
381 | ok( exists($DB::dbline{5}), |
382 | '... should only go to last index of @DB::dbline' ); |
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383 | } |
384 | |
385 | # test DB::set_action() |
386 | { |
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387 | local *DB::dbline; |
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388 | |
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389 | %DB::dbline = ( |
390 | 2 => "\0abc", |
391 | ); |
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392 | |
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393 | *DB::dbline = [ $dualfalse, $dualfalse, $dualtrue, $dualtrue ]; |
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394 | |
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395 | DB->set_action(2, 'def'); |
396 | is( $DB::dbline{2}, "\0def", |
397 | 'DB::set_action() should replace existing action' ); |
398 | DB->set_action(3, ''); |
399 | is( $DB::dbline{3}, "\0", '... should set new action' ); |
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400 | |
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401 | my $db = FakeDB->new(); |
402 | DB::set_action($db, 'abadsubname'); |
403 | is( $db->{output}, "Subroutine not found.\n", |
404 | '... should output warning if sub cannot be found'); |
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405 | |
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406 | DB::set_action($db, 1); |
407 | like( $db->{output}, qr/1 not action/, |
408 | '... should warn if line cannot be actionivated' ); |
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409 | } |
410 | |
411 | # test DB::clr_actions() |
412 | { |
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413 | local *DB::dbline; |
414 | my %lines = ( |
415 | 1 => "\0", |
416 | 2 => undef, |
417 | 3 => "123\0abc", |
418 | 4 => "abc\0", |
419 | ); |
420 | |
421 | %DB::dbline = %lines; |
422 | *DB::dbline = [ ($dualtrue) x 4 ]; |
423 | |
424 | DB->clr_actions(1 .. 4); |
425 | |
426 | is( scalar keys %DB::dbline, 2, 'DB::clr_actions() should clear actions' ); |
427 | ok( ! exists($DB::dbline{1}), '... should delete empty actions' ); |
428 | is( $DB::dbline{3}, "123", '... should remove action, leaving break'); |
429 | is( $DB::dbline{4}, "abc\0", '... should not remove set breaks' ); |
430 | |
431 | local *{ "::_<foo" } = [ 0, 0, 0, 1 ]; |
432 | |
433 | local $DB::package; |
434 | local %DB::sub = ( |
435 | 'main::foo' => 'foo:1-3', |
436 | ); |
437 | |
438 | %DB::dbline = %lines; |
439 | DB->clr_actions('foo'); |
440 | |
441 | is( $DB::dbline{3}, "123", '... should find lines via _find_subline()' ); |
442 | |
443 | my $db = FakeDB->new(); |
444 | DB::clr_actions($db, 'abadsubname'); |
445 | is( $db->{output}, "Subroutine not found.\n", |
446 | '... should output warning if sub cannot be found'); |
447 | |
448 | @DB::dbline = (1 .. 4); |
449 | %DB::dbline = (%lines, 5 => "\0" ); |
450 | |
451 | DB::clr_actions(); |
452 | |
453 | is( scalar keys %DB::dbline, 4, |
454 | 'Relying on @DB::dbline in DB::clr_actions() should clear actions' ); |
455 | ok( ! exists($DB::dbline{1}), '... should delete empty actions' ); |
456 | is( $DB::dbline{3}, "123", '... should remove action, leaving break'); |
457 | is( $DB::dbline{4}, "abc\0", '... should not remove set breaks' ); |
458 | ok( exists($DB::dbline{5}), |
459 | '... should only go to last index of @DB::dbline' ); |
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460 | } |
461 | |
462 | # test DB::prestop() |
463 | ok( ! defined DB::prestop('test'), |
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464 | 'DB::prestop() should return undef for undef value' ); |
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465 | DB::prestop('test', 897); |
466 | is( DB::prestop('test'), 897, '... should return value when set' ); |
467 | |
468 | # test DB::poststop(), not exactly parallel |
469 | ok( ! defined DB::poststop('tset'), |
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470 | 'DB::prestop() should return undef for undef value' ); |
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471 | DB::poststop('tset', 987); |
472 | is( DB::poststop('tset'), 987, '... should return value when set' ); |
473 | |
474 | # test DB::evalcode() |
475 | ok( ! defined DB::evalcode('foo'), |
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476 | 'DB::evalcode() should return undef for undef value' ); |
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477 | |
478 | DB::evalcode('foo', 'bar'); |
479 | is( DB::evalcode('foo'), 'bar', '... should return value when set' ); |
480 | |
481 | # test DB::_outputall(), must create fake clients first |
482 | ok( DB::register( FakeDB->new() ), 'DB::register() should work' ); |
483 | DB::register( FakeDB->new() ) for ( 1 .. 2); |
484 | |
485 | DB::_outputall(1, 2, 3); |
486 | is( $FakeDB::output, '123123123', |
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487 | 'DB::_outputall() should call output(@_) on all clients' ); |
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488 | |
489 | # test virtual methods |
490 | for my $method (qw( cprestop cpoststop awaken init stop idle cleanup output )) { |
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491 | ok( defined &{ "DB::$method" }, "DB::$method() should be defined" ); |
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492 | } |
493 | |
494 | # DB::skippkg() uses lexical |
495 | # DB::ready() uses lexical |
496 | |
497 | package FakeDB; |
498 | |
499 | use vars qw( $output ); |
500 | |
501 | sub new { |
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502 | bless({}, $_[0]); |
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503 | } |
504 | |
505 | sub set_tbreak { |
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506 | my ($self, $val) = @_; |
507 | $self->{tbreak} = $val; |
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508 | } |
509 | |
510 | sub output { |
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511 | my $self = shift; |
512 | if (ref $self) { |
513 | $self->{output} = join('', @_); |
514 | } else { |
515 | $output .= join('', @_); |
516 | } |
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517 | } |