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TODO-SKIP tests must be "not ok", or else the test harness will think
[perl5.git] / t / test.pl
CommitLineData
69026470
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1#
2# t/test.pl - most of Test::More functionality without the fuss
3#
4
dcc7f481 5$Level = 1;
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6my $test = 1;
7my $planned;
6137113d 8my $noplan;
69026470 9
7d932aad 10$TODO = 0;
b6345914 11$NO_ENDING = 0;
7d932aad 12
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13sub plan {
14 my $n;
15 if (@_ == 1) {
16 $n = shift;
6137113d
NC
17 if ($n eq 'no_plan') {
18 undef $n;
19 $noplan = 1;
20 }
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21 } else {
22 my %plan = @_;
23 $n = $plan{tests};
24 }
6137113d 25 print STDOUT "1..$n\n" unless $noplan;
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26 $planned = $n;
27}
28
29END {
30 my $ran = $test - 1;
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NC
31 if (!$NO_ENDING) {
32 if (defined $planned && $planned != $ran) {
33 print STDERR
34 "# Looks like you planned $planned tests but ran $ran.\n";
35 } elsif ($noplan) {
36 print "1..$ran\n";
37 }
69026470
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38 }
39}
40
de522f7a
MS
41# Use this instead of "print STDERR" when outputing failure diagnostic
42# messages
43sub _diag {
cf8feb78
MJD
44 return unless @_;
45 my @mess = map { /^#/ ? "$_\n" : "# $_\n" }
46 map { split /\n/ } @_;
de522f7a 47 my $fh = $TODO ? *STDOUT : *STDERR;
cf8feb78
MJD
48 print $fh @mess;
49
de522f7a
MS
50}
51
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52sub skip_all {
53 if (@_) {
195d559b 54 print STDOUT "1..0 # Skipped: @_\n";
69026470 55 } else {
ad20d923 56 print STDOUT "1..0\n";
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57 }
58 exit(0);
59}
60
61sub _ok {
7d932aad 62 my ($pass, $where, $name, @mess) = @_;
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63 # Do not try to microoptimize by factoring out the "not ".
64 # VMS will avenge.
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MS
65 my $out;
66 if ($name) {
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MS
67 # escape out '#' or it will interfere with '# skip' and such
68 $name =~ s/#/\\#/g;
7d932aad 69 $out = $pass ? "ok $test - $name" : "not ok $test - $name";
69026470 70 } else {
7d932aad 71 $out = $pass ? "ok $test" : "not ok $test";
69026470 72 }
7d932aad
MS
73
74 $out .= " # TODO $TODO" if $TODO;
ad20d923 75 print STDOUT "$out\n";
7d932aad 76
69026470 77 unless ($pass) {
de522f7a 78 _diag "# Failed $where\n";
69026470 79 }
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MS
80
81 # Ensure that the message is properly escaped.
cf8feb78 82 _diag @mess;
7d932aad 83
69026470 84 $test++;
1577bb16
MS
85
86 return $pass;
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87}
88
89sub _where {
dcc7f481 90 my @caller = caller($Level);
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91 return "at $caller[1] line $caller[2]";
92}
93
1d662fb6 94# DON'T use this for matches. Use like() instead.
c3029c66 95sub ok ($@) {
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MS
96 my ($pass, $name, @mess) = @_;
97 _ok($pass, _where(), $name, @mess);
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98}
99
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100sub _q {
101 my $x = shift;
102 return 'undef' unless defined $x;
103 my $q = $x;
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NC
104 $q =~ s/\\/\\\\/g;
105 $q =~ s/'/\\'/g;
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106 return "'$q'";
107}
108
677fb045
NC
109sub _qq {
110 my $x = shift;
111 return defined $x ? '"' . display ($x) . '"' : 'undef';
112};
113
114# keys are the codes \n etc map to, values are 2 char strings such as \n
115my %backslash_escape;
116foreach my $x (split //, 'nrtfa\\\'"') {
117 $backslash_escape{ord eval "\"\\$x\""} = "\\$x";
118}
119# A way to display scalars containing control characters and Unicode.
120# Trying to avoid setting $_, or relying on local $_ to work.
121sub display {
122 my @result;
123 foreach my $x (@_) {
124 if (defined $x and not ref $x) {
125 my $y = '';
126 foreach my $c (unpack("U*", $x)) {
127 if ($c > 255) {
128 $y .= sprintf "\\x{%x}", $c;
129 } elsif ($backslash_escape{$c}) {
130 $y .= $backslash_escape{$c};
131 } else {
132 my $z = chr $c; # Maybe we can get away with a literal...
133 $z = sprintf "\\%03o", $c if $z =~ /[[:^print:]]/;
134 $y .= $z;
135 }
136 }
137 $x = $y;
138 }
139 return $x unless wantarray;
140 push @result, $x;
141 }
142 return @result;
143}
144
c3029c66 145sub is ($$@) {
7d932aad 146 my ($got, $expected, $name, @mess) = @_;
c831d34f
MS
147
148 my $pass;
149 if( !defined $got || !defined $expected ) {
150 # undef only matches undef
151 $pass = !defined $got && !defined $expected;
152 }
153 else {
154 $pass = $got eq $expected;
155 }
156
69026470 157 unless ($pass) {
b3c72391
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158 unshift(@mess, "# got "._q($got)."\n",
159 "# expected "._q($expected)."\n");
69026470 160 }
7d932aad 161 _ok($pass, _where(), $name, @mess);
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162}
163
c3029c66 164sub isnt ($$@) {
3e90d5a3 165 my ($got, $isnt, $name, @mess) = @_;
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MS
166
167 my $pass;
168 if( !defined $got || !defined $isnt ) {
169 # undef only matches undef
170 $pass = defined $got || defined $isnt;
171 }
172 else {
173 $pass = $got ne $isnt;
174 }
175
3e90d5a3 176 unless( $pass ) {
b3c72391 177 unshift(@mess, "# it should not be "._q($got)."\n",
3e90d5a3
MS
178 "# but it is.\n");
179 }
180 _ok($pass, _where(), $name, @mess);
181}
182
c3029c66 183sub cmp_ok ($$$@) {
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184 my($got, $type, $expected, $name, @mess) = @_;
185
186 my $pass;
187 {
188 local $^W = 0;
189 local($@,$!); # don't interfere with $@
190 # eval() sometimes resets $!
191 $pass = eval "\$got $type \$expected";
192 }
193 unless ($pass) {
194 # It seems Irix long doubles can have 2147483648 and 2147483648
195 # that stringify to the same thing but are acutally numerically
196 # different. Display the numbers if $type isn't a string operator,
197 # and the numbers are stringwise the same.
198 # (all string operators have alphabetic names, so tr/a-z// is true)
199 # This will also show numbers for some uneeded cases, but will
200 # definately be helpful for things such as == and <= that fail
201 if ($got eq $expected and $type !~ tr/a-z//) {
202 unshift @mess, "# $got - $expected = " . ($got - $expected) . "\n";
203 }
204 unshift(@mess, "# got "._q($got)."\n",
205 "# expected $type "._q($expected)."\n");
206 }
207 _ok($pass, _where(), $name, @mess);
208}
209
210# Check that $got is within $range of $expected
211# if $range is 0, then check it's exact
212# else if $expected is 0, then $range is an absolute value
213# otherwise $range is a fractional error.
214# Here $range must be numeric, >= 0
215# Non numeric ranges might be a useful future extension. (eg %)
c3029c66 216sub within ($$$@) {
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217 my ($got, $expected, $range, $name, @mess) = @_;
218 my $pass;
219 if (!defined $got or !defined $expected or !defined $range) {
220 # This is a fail, but doesn't need extra diagnostics
221 } elsif ($got !~ tr/0-9// or $expected !~ tr/0-9// or $range !~ tr/0-9//) {
222 # This is a fail
223 unshift @mess, "# got, expected and range must be numeric\n";
224 } elsif ($range < 0) {
225 # This is also a fail
226 unshift @mess, "# range must not be negative\n";
227 } elsif ($range == 0) {
228 # Within 0 is ==
229 $pass = $got == $expected;
230 } elsif ($expected == 0) {
231 # If expected is 0, treat range as absolute
232 $pass = ($got <= $range) && ($got >= - $range);
233 } else {
234 my $diff = $got - $expected;
235 $pass = abs ($diff / $expected) < $range;
236 }
237 unless ($pass) {
238 if ($got eq $expected) {
239 unshift @mess, "# $got - $expected = " . ($got - $expected) . "\n";
240 }
241 unshift@mess, "# got "._q($got)."\n",
242 "# expected "._q($expected)." (within "._q($range).")\n";
243 }
244 _ok($pass, _where(), $name, @mess);
245}
246
69026470 247# Note: this isn't quite as fancy as Test::More::like().
724aa791
JC
248
249sub like ($$@) { like_yn (0,@_) }; # 0 for -
250sub unlike ($$@) { like_yn (1,@_) }; # 1 for un-
251
252sub like_yn ($$$@) {
253 my ($flip, $got, $expected, $name, @mess) = @_;
69026470 254 my $pass;
724aa791
JC
255 $pass = $got =~ /$expected/ if !$flip;
256 $pass = $got !~ /$expected/ if $flip;
257 unless ($pass) {
258 unshift(@mess, "# got '$got'\n",
259 "# expected /$expected/\n");
69026470 260 }
7d932aad 261 _ok($pass, _where(), $name, @mess);
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262}
263
264sub pass {
265 _ok(1, '', @_);
266}
267
268sub fail {
269 _ok(0, _where(), @_);
270}
271
ad20d923 272sub curr_test {
cf8feb78 273 $test = shift if @_;
ad20d923
MS
274 return $test;
275}
276
3e90d5a3 277sub next_test {
cf8feb78 278 $test++;
3e90d5a3
MS
279}
280
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281# Note: can't pass multipart messages since we try to
282# be compatible with Test::More::skip().
283sub skip {
7d932aad 284 my $why = shift;
982b7cb7 285 my $n = @_ ? shift : 1;
69026470 286 for (1..$n) {
ad20d923 287 print STDOUT "ok $test # skip: $why\n";
e6c299c8 288 $test++;
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289 }
290 local $^W = 0;
291 last SKIP;
292}
293
09f04786
MS
294sub todo_skip {
295 my $why = shift;
296 my $n = @_ ? shift : 1;
297
298 for (1..$n) {
a27e4e7f 299 print STDOUT "not ok $test # TODO & SKIP: $why\n";
09f04786
MS
300 $test++;
301 }
302 local $^W = 0;
303 last TODO;
304}
305
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306sub eq_array {
307 my ($ra, $rb) = @_;
308 return 0 unless $#$ra == $#$rb;
309 for my $i (0..$#$ra) {
135d199b
DM
310 next if !defined $ra->[$i] && !defined $rb->[$i];
311 return 0 if !defined $ra->[$i];
312 return 0 if !defined $rb->[$i];
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313 return 0 unless $ra->[$i] eq $rb->[$i];
314 }
315 return 1;
316}
317
677fb045
NC
318sub eq_hash {
319 my ($orig, $suspect) = @_;
320 my $fail;
321 while (my ($key, $value) = each %$suspect) {
322 # Force a hash recompute if this perl's internals can cache the hash key.
323 $key = "" . $key;
324 if (exists $orig->{$key}) {
325 if ($orig->{$key} ne $value) {
de522f7a
MS
326 print STDOUT "# key ", _qq($key), " was ", _qq($orig->{$key}),
327 " now ", _qq($value), "\n";
677fb045
NC
328 $fail = 1;
329 }
330 } else {
de522f7a 331 print STDOUT "# key ", _qq($key), " is ", _qq($value),
75385f53 332 ", not in original.\n";
677fb045
NC
333 $fail = 1;
334 }
335 }
336 foreach (keys %$orig) {
337 # Force a hash recompute if this perl's internals can cache the hash key.
338 $_ = "" . $_;
339 next if (exists $suspect->{$_});
de522f7a 340 print STDOUT "# key ", _qq($_), " was ", _qq($orig->{$_}), " now missing.\n";
677fb045
NC
341 $fail = 1;
342 }
343 !$fail;
344}
345
c3029c66 346sub require_ok ($) {
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347 my ($require) = @_;
348 eval <<REQUIRE_OK;
349require $require;
350REQUIRE_OK
1577bb16 351 _ok(!$@, _where(), "require $require");
69026470
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352}
353
c3029c66 354sub use_ok ($) {
69026470
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355 my ($use) = @_;
356 eval <<USE_OK;
357use $use;
358USE_OK
1577bb16 359 _ok(!$@, _where(), "use $use");
69026470
JH
360}
361
137352a2
RGS
362# runperl - Runs a separate perl interpreter.
363# Arguments :
364# switches => [ command-line switches ]
365# nolib => 1 # don't use -I../lib (included by default)
366# prog => one-liner (avoid quotes)
d83945bc 367# progs => [ multi-liner (avoid quotes) ]
137352a2
RGS
368# progfile => perl script
369# stdin => string to feed the stdin
370# stderr => redirect stderr to stdout
371# args => [ command-line arguments to the perl program ]
cb9c5e20 372# verbose => print the command line
137352a2
RGS
373
374my $is_mswin = $^O eq 'MSWin32';
375my $is_netware = $^O eq 'NetWare';
376my $is_macos = $^O eq 'MacOS';
377my $is_vms = $^O eq 'VMS';
378
cb9c5e20
JH
379sub _quote_args {
380 my ($runperl, $args) = @_;
381
382 foreach (@$args) {
383 # In VMS protect with doublequotes because otherwise
384 # DCL will lowercase -- unless already doublequoted.
ea9ac5ad 385 $_ = q(").$_.q(") if $is_vms && !/^\"/ && length($_) > 0;
cb9c5e20
JH
386 $$runperl .= ' ' . $_;
387 }
388}
389
4cd2bd1f 390sub _create_runperl { # Create the string to qx in runperl().
137352a2 391 my %args = @_;
44cb023c 392 my $runperl = $^X =~ m/\s/ ? qq{"$^X"} : $^X;
6cf707aa
RGS
393 #- this allows, for example, to set PERL_RUNPERL_DEBUG=/usr/bin/valgrind
394 if ($ENV{PERL_RUNPERL_DEBUG}) {
395 $runperl = "$ENV{PERL_RUNPERL_DEBUG} $runperl";
396 }
f93a5f07
JH
397 unless ($args{nolib}) {
398 if ($is_macos) {
cb9c5e20 399 $runperl .= ' -I::lib';
f93a5f07 400 # Use UNIX style error messages instead of MPW style.
cb9c5e20 401 $runperl .= ' -MMac::err=unix' if $args{stderr};
137352a2
RGS
402 }
403 else {
cb9c5e20 404 $runperl .= ' "-I../lib"'; # doublequotes because of VMS
137352a2
RGS
405 }
406 }
d83945bc 407 if ($args{switches}) {
343d4a7b
JH
408 local $Level = 2;
409 die "test.pl:runperl(): 'switches' must be an ARRAYREF " . _where()
410 unless ref $args{switches} eq "ARRAY";
d83945bc
A
411 _quote_args(\$runperl, $args{switches});
412 }
137352a2 413 if (defined $args{prog}) {
21820af6
JH
414 die "test.pl:runperl(): both 'prog' and 'progs' cannot be used " . _where()
415 if defined $args{progs};
d83945bc
A
416 $args{progs} = [$args{prog}]
417 }
418 if (defined $args{progs}) {
21820af6
JH
419 die "test.pl:runperl(): 'progs' must be an ARRAYREF " . _where()
420 unless ref $args{progs} eq "ARRAY";
d83945bc
A
421 foreach my $prog (@{$args{progs}}) {
422 if ($is_mswin || $is_netware || $is_vms) {
423 $runperl .= qq ( -e "$prog" );
424 }
425 else {
426 $runperl .= qq ( -e '$prog' );
427 }
428 }
137352a2
RGS
429 } elsif (defined $args{progfile}) {
430 $runperl .= qq( "$args{progfile}");
9a731dbd
NC
431 } else {
432 # You probaby didn't want to be sucking in from the upstream stdin
433 die "test.pl:runperl(): none of prog, progs, progfile, args, "
434 . " switches or stdin specified"
435 unless defined $args{args} or defined $args{switches}
436 or defined $args{stdin};
137352a2
RGS
437 }
438 if (defined $args{stdin}) {
dc459aad
JH
439 # so we don't try to put literal newlines and crs onto the
440 # command line.
441 $args{stdin} =~ s/\n/\\n/g;
442 $args{stdin} =~ s/\r/\\r/g;
5ae09a77 443
137352a2 444 if ($is_mswin || $is_netware || $is_vms) {
f93a5f07 445 $runperl = qq{$^X -e "print qq(} .
137352a2
RGS
446 $args{stdin} . q{)" | } . $runperl;
447 }
dc459aad
JH
448 elsif ($is_macos) {
449 # MacOS can only do two processes under MPW at once;
450 # the test itself is one; we can't do two more, so
451 # write to temp file
452 my $stdin = qq{$^X -e 'print qq(} . $args{stdin} . qq{)' > teststdin; };
453 if ($args{verbose}) {
454 my $stdindisplay = $stdin;
455 $stdindisplay =~ s/\n/\n\#/g;
456 print STDERR "# $stdindisplay\n";
457 }
458 `$stdin`;
459 $runperl .= q{ < teststdin };
460 }
137352a2 461 else {
f93a5f07 462 $runperl = qq{$^X -e 'print qq(} .
137352a2
RGS
463 $args{stdin} . q{)' | } . $runperl;
464 }
465 }
466 if (defined $args{args}) {
cb9c5e20
JH
467 _quote_args(\$runperl, $args{args});
468 }
469 $runperl .= ' 2>&1' if $args{stderr} && !$is_macos;
470 $runperl .= " \xB3 Dev:Null" if !$args{stderr} && $is_macos;
471 if ($args{verbose}) {
472 my $runperldisplay = $runperl;
473 $runperldisplay =~ s/\n/\n\#/g;
75385f53 474 print STDERR "# $runperldisplay\n";
137352a2 475 }
4cd2bd1f
JH
476 return $runperl;
477}
478
479sub runperl {
9a731dbd
NC
480 die "test.pl:runperl() does not take a hashref"
481 if ref $_[0] and ref $_[0] eq 'HASH';
4cd2bd1f 482 my $runperl = &_create_runperl;
137352a2
RGS
483 my $result = `$runperl`;
484 $result =~ s/\n\n/\n/ if $is_vms; # XXX pipes sometimes double these
485 return $result;
486}
487
d2c6a9c9 488*run_perl = \&runperl; # Nice alias.
8799135f 489
c4fbe247 490sub DIE {
75385f53 491 print STDERR "# @_\n";
c4fbe247 492 exit 1;
8799135f
MS
493}
494
b5fe401b 495# A somewhat safer version of the sometimes wrong $^X.
17a740d5
JH
496my $Perl;
497sub which_perl {
498 unless (defined $Perl) {
499 $Perl = $^X;
500
73421c4a
CB
501 # VMS should have 'perl' aliased properly
502 return $Perl if $^O eq 'VMS';
503
17a740d5
JH
504 my $exe;
505 eval "require Config; Config->import";
85363d30 506 if ($@) {
17a740d5
JH
507 warn "test.pl had problems loading Config: $@";
508 $exe = '';
85363d30 509 } else {
17a740d5 510 $exe = $Config{_exe};
85363d30 511 }
da405c16 512 $exe = '' unless defined $exe;
17a740d5
JH
513
514 # This doesn't absolutize the path: beware of future chdirs().
515 # We could do File::Spec->abs2rel() but that does getcwd()s,
516 # which is a bit heavyweight to do here.
517
518 if ($Perl =~ /^perl\Q$exe\E$/i) {
8db06b02 519 my $perl = "perl$exe";
17a740d5
JH
520 eval "require File::Spec";
521 if ($@) {
522 warn "test.pl had problems loading File::Spec: $@";
8db06b02 523 $Perl = "./$perl";
17a740d5 524 } else {
8db06b02 525 $Perl = File::Spec->catfile(File::Spec->curdir(), $perl);
17a740d5
JH
526 }
527 }
196918b0
PG
528
529 # Build up the name of the executable file from the name of
530 # the command.
531
532 if ($Perl !~ /\Q$exe\E$/i) {
533 $Perl .= $exe;
534 }
c880be78 535
8db06b02 536 warn "which_perl: cannot find $Perl from $^X" unless -f $Perl;
17a740d5
JH
537
538 # For subcommands to use.
539 $ENV{PERLEXE} = $Perl;
85363d30 540 }
17a740d5 541 return $Perl;
b5fe401b
MS
542}
543
435e7af6
NC
544sub unlink_all {
545 foreach my $file (@_) {
546 1 while unlink $file;
75385f53 547 print STDERR "# Couldn't unlink '$file': $!\n" if -f $file;
435e7af6
NC
548 }
549}
eeabcb2d
MS
550
551
552my $tmpfile = "misctmp000";
5531 while -f ++$tmpfile;
554END { unlink_all $tmpfile }
555
f5cda331
JH
556#
557# _fresh_perl
558#
559# The $resolve must be a subref that tests the first argument
560# for success, or returns the definition of success (e.g. the
561# expected scalar) if given no arguments.
562#
563
564sub _fresh_perl {
565 my($prog, $resolve, $runperl_args, $name) = @_;
eeabcb2d
MS
566
567 $runperl_args ||= {};
568 $runperl_args->{progfile} = $tmpfile;
569 $runperl_args->{stderr} = 1;
570
571 open TEST, ">$tmpfile" or die "Cannot open $tmpfile: $!";
572
573 # VMS adjustments
574 if( $^O eq 'VMS' ) {
575 $prog =~ s#/dev/null#NL:#;
576
577 # VMS file locking
578 $prog =~ s{if \(-e _ and -f _ and -r _\)}
579 {if (-e _ and -f _)}
580 }
581
0d65d7d5 582 print TEST $prog;
eeabcb2d
MS
583 close TEST or die "Cannot close $tmpfile: $!";
584
585 my $results = runperl(%$runperl_args);
586 my $status = $?;
587
588 # Clean up the results into something a bit more predictable.
589 $results =~ s/\n+$//;
590 $results =~ s/at\s+misctmp\d+\s+line/at - line/g;
591 $results =~ s/of\s+misctmp\d+\s+aborted/of - aborted/g;
592
593 # bison says 'parse error' instead of 'syntax error',
594 # various yaccs may or may not capitalize 'syntax'.
595 $results =~ s/^(syntax|parse) error/syntax error/mig;
596
597 if ($^O eq 'VMS') {
598 # some tests will trigger VMS messages that won't be expected
599 $results =~ s/\n?%[A-Z]+-[SIWEF]-[A-Z]+,.*//;
600
601 # pipes double these sometimes
602 $results =~ s/\n\n/\n/g;
603 }
604
f5cda331 605 my $pass = $resolve->($results);
eeabcb2d 606 unless ($pass) {
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MJD
607 _diag "# PROG: \n$prog\n";
608 _diag "# EXPECTED:\n", $resolve->(), "\n";
609 _diag "# GOT:\n$results\n";
610 _diag "# STATUS: $status\n";
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611 }
612
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613 # Use the first line of the program as a name if none was given
614 unless( $name ) {
615 ($first_line, $name) = $prog =~ /^((.{1,50}).*)/;
616 $name .= '...' if length $first_line > length $name;
617 }
eeabcb2d 618
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JH
619 _ok($pass, _where(), "fresh_perl - $name");
620}
621
622#
141f445b 623# fresh_perl_is
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JH
624#
625# Combination of run_perl() and is().
626#
627
628sub fresh_perl_is {
629 my($prog, $expected, $runperl_args, $name) = @_;
dcc7f481 630 local $Level = 2;
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JH
631 _fresh_perl($prog,
632 sub { @_ ? $_[0] eq $expected : $expected },
633 $runperl_args, $name);
634}
635
636#
141f445b 637# fresh_perl_like
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JH
638#
639# Combination of run_perl() and like().
640#
641
642sub fresh_perl_like {
643 my($prog, $expected, $runperl_args, $name) = @_;
dcc7f481 644 local $Level = 2;
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JH
645 _fresh_perl($prog,
646 sub { @_ ?
647 $_[0] =~ (ref $expected ? $expected : /$expected/) :
648 $expected },
649 $runperl_args, $name);
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650}
651
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RGS
652sub can_ok ($@) {
653 my($proto, @methods) = @_;
654 my $class = ref $proto || $proto;
655
656 unless( @methods ) {
657 return _ok( 0, _where(), "$class->can(...)" );
658 }
659
660 my @nok = ();
661 foreach my $method (@methods) {
662 local($!, $@); # don't interfere with caller's $@
663 # eval sometimes resets $!
664 eval { $proto->can($method) } || push @nok, $method;
665 }
666
667 my $name;
668 $name = @methods == 1 ? "$class->can('$methods[0]')"
669 : "$class->can(...)";
670
671 _ok( !@nok, _where(), $name );
672}
673
674sub isa_ok ($$;$) {
675 my($object, $class, $obj_name) = @_;
676
677 my $diag;
678 $obj_name = 'The object' unless defined $obj_name;
679 my $name = "$obj_name isa $class";
680 if( !defined $object ) {
681 $diag = "$obj_name isn't defined";
682 }
683 elsif( !ref $object ) {
684 $diag = "$obj_name isn't a reference";
685 }
686 else {
687 # We can't use UNIVERSAL::isa because we want to honor isa() overrides
688 local($@, $!); # eval sometimes resets $!
689 my $rslt = eval { $object->isa($class) };
690 if( $@ ) {
691 if( $@ =~ /^Can't call method "isa" on unblessed reference/ ) {
692 if( !UNIVERSAL::isa($object, $class) ) {
693 my $ref = ref $object;
694 $diag = "$obj_name isn't a '$class' it's a '$ref'";
695 }
696 } else {
697 die <<WHOA;
698WHOA! I tried to call ->isa on your object and got some weird error.
699This should never happen. Please contact the author immediately.
700Here's the error.
701$@
702WHOA
703 }
704 }
705 elsif( !$rslt ) {
706 my $ref = ref $object;
707 $diag = "$obj_name isn't a '$class' it's a '$ref'";
708 }
709 }
710
711 _ok( !$diag, _where(), $name );
712}
713
69026470 7141;