package Test::Builder;
-use 5.004;
-
-# $^C was only introduced in 5.005-ish. We do this to prevent
-# use of uninitialized value warnings in older perls.
-$^C ||= 0;
-
+use 5.006;
use strict;
-use vars qw($VERSION);
-$VERSION = '0.22';
-$VERSION = eval $VERSION; # make the alpha version come out as a number
+
+our $VERSION = '0.80';
+$VERSION = eval { $VERSION }; # make the alpha version come out as a number
# Make Test::Builder thread-safe for ithreads.
BEGIN {
use Config;
- # Load threads::shared when threads are turned on
- if( $] >= 5.008 && $Config{useithreads} && $INC{'threads.pm'}) {
+ # Load threads::shared when threads are turned on.
+ # 5.8.0's threads are so busted we no longer support them.
+ if( $] >= 5.008001 && $Config{useithreads} && $INC{'threads.pm'}) {
require threads::shared;
# Hack around YET ANOTHER threads::shared bug. It would
$$data = ${$_[0]};
}
else {
- die "Unknown type: ".$type;
+ die("Unknown type: ".$type);
}
$_[0] = &threads::shared::share($_[0]);
${$_[0]} = $$data;
}
else {
- die "Unknown type: ".$type;
+ die("Unknown type: ".$type);
}
return $_[0];
};
}
- # 5.8.0's threads::shared is busted when threads are off.
- # We emulate it here.
+ # 5.8.0's threads::shared is busted when threads are off
+ # and earlier Perls just don't have that module at all.
else {
*share = sub { return $_[0] };
*lock = sub { 0 };
=head1 SYNOPSIS
package My::Test::Module;
- use Test::Builder;
- require Exporter;
- @ISA = qw(Exporter);
- @EXPORT = qw(ok);
-
- my $Test = Test::Builder->new;
- $Test->output('my_logfile');
-
- sub import {
- my($self) = shift;
- my $pack = caller;
-
- $Test->exported_to($pack);
- $Test->plan(@_);
+ use base 'Test::Builder::Module';
- $self->export_to_level(1, $self, 'ok');
- }
+ my $CLASS = __PACKAGE__;
sub ok {
my($test, $name) = @_;
+ my $tb = $CLASS->builder;
- $Test->ok($test, $name);
+ $tb->ok($test, $name);
}
Returns a Test::Builder object representing the current state of the
test.
-Since you only run one test per program, there is B<one and only one>
+Since you only run one test per program C<new> always returns the same
Test::Builder object. No matter how many times you call new(), you're
-getting the same object. (This is called a singleton).
+getting the same object. This is called a singleton. This is done so that
+multiple modules share such global information as the test counter and
+where test output is going.
+
+If you want a completely new Test::Builder object different from the
+singleton, use C<create>.
=cut
my $Test = Test::Builder->new;
sub new {
my($class) = shift;
- $Test ||= bless ['Move along, nothing to see here'], $class;
+ $Test ||= $class->create;
return $Test;
}
+
+=item B<create>
+
+ my $Test = Test::Builder->create;
+
+Ok, so there can be more than one Test::Builder object and this is how
+you get it. You might use this instead of C<new()> if you're testing
+a Test::Builder based module, but otherwise you probably want C<new>.
+
+B<NOTE>: the implementation is not complete. C<level>, for example, is
+still shared amongst B<all> Test::Builder objects, even ones created using
+this method. Also, the method name may change in the future.
+
+=cut
+
+sub create {
+ my $class = shift;
+
+ my $self = bless {}, $class;
+ $self->reset;
+
+ return $self;
+}
+
=item B<reset>
$Test->reset;
=cut
-my $Test_Died;
-my $Have_Plan;
-my $No_Plan;
-my $Curr_Test; share($Curr_Test);
use vars qw($Level);
-my $Original_Pid;
-my @Test_Results; share(@Test_Results);
-
-my $Exported_To;
-my $Expected_Tests;
-my $Skip_All;
-
-my $Use_Nums;
+sub reset {
+ my ($self) = @_;
-my($No_Header, $No_Ending);
+ # We leave this a global because it has to be localized and localizing
+ # hash keys is just asking for pain. Also, it was documented.
+ $Level = 1;
-$Test->reset;
+ $self->{Have_Plan} = 0;
+ $self->{No_Plan} = 0;
+ $self->{Original_Pid} = $$;
-sub reset {
- my ($self) = @_;
+ share($self->{Curr_Test});
+ $self->{Curr_Test} = 0;
+ $self->{Test_Results} = &share([]);
- $Test_Died = 0;
- $Have_Plan = 0;
- $No_Plan = 0;
- $Curr_Test = 0;
- $Level = 1;
- $Original_Pid = $$;
- @Test_Results = ();
+ $self->{Exported_To} = undef;
+ $self->{Expected_Tests} = 0;
- $Exported_To = undef;
- $Expected_Tests = 0;
+ $self->{Skip_All} = 0;
- $Skip_All = 0;
+ $self->{Use_Nums} = 1;
- $Use_Nums = 1;
+ $self->{No_Header} = 0;
+ $self->{No_Ending} = 0;
- ($No_Header, $No_Ending) = (0,0);
+ $self->{TODO} = undef;
$self->_dup_stdhandles unless $^C;
- return undef;
+ return;
}
=back
=over 4
-=item B<exported_to>
-
- my $pack = $Test->exported_to;
- $Test->exported_to($pack);
-
-Tells Test::Builder what package you exported your functions to.
-This is important for getting TODO tests right.
-
-=cut
-
-sub exported_to {
- my($self, $pack) = @_;
-
- if( defined $pack ) {
- $Exported_To = $pack;
- }
- return $Exported_To;
-}
-
=item B<plan>
$Test->plan('no_plan');
return unless $cmd;
- if( $Have_Plan ) {
- die sprintf "You tried to plan twice! Second plan at %s line %d\n",
- ($self->caller)[1,2];
+ local $Level = $Level + 1;
+
+ if( $self->{Have_Plan} ) {
+ $self->croak("You tried to plan twice");
}
if( $cmd eq 'no_plan' ) {
}
elsif( $cmd eq 'tests' ) {
if( $arg ) {
+ local $Level = $Level + 1;
return $self->expected_tests($arg);
}
elsif( !defined $arg ) {
- die "Got an undefined number of tests. Looks like you tried to ".
- "say how many tests you plan to run but made a mistake.\n";
+ $self->croak("Got an undefined number of tests");
}
elsif( !$arg ) {
- die "You said to run 0 tests! You've got to run something.\n";
+ $self->croak("You said to run 0 tests");
}
}
else {
- require Carp;
my @args = grep { defined } ($cmd, $arg);
- Carp::croak("plan() doesn't understand @args");
+ $self->croak("plan() doesn't understand @args");
}
return 1;
my($max) = @_;
if( @_ ) {
- die "Number of tests must be a postive integer. You gave it '$max'.\n"
+ $self->croak("Number of tests must be a positive integer. You gave it '$max'")
unless $max =~ /^\+?\d+$/ and $max > 0;
- $Expected_Tests = $max;
- $Have_Plan = 1;
+ $self->{Expected_Tests} = $max;
+ $self->{Have_Plan} = 1;
$self->_print("1..$max\n") unless $self->no_header;
}
- return $Expected_Tests;
+ return $self->{Expected_Tests};
}
=cut
sub no_plan {
- $No_Plan = 1;
- $Have_Plan = 1;
+ my $self = shift;
+
+ $self->{No_Plan} = 1;
+ $self->{Have_Plan} = 1;
}
=item B<has_plan>
$plan = $Test->has_plan
-
+
Find out whether a plan has been defined. $plan is either C<undef> (no plan has been set), C<no_plan> (indeterminate # of tests) or an integer (the number of expected tests).
=cut
sub has_plan {
- return($Expected_Tests) if $Expected_Tests;
- return('no_plan') if $No_Plan;
- return(undef);
+ my $self = shift;
+
+ return($self->{Expected_Tests}) if $self->{Expected_Tests};
+ return('no_plan') if $self->{No_Plan};
+ return(undef);
};
$out .= " # Skip $reason" if $reason;
$out .= "\n";
- $Skip_All = 1;
+ $self->{Skip_All} = 1;
$self->_print($out) unless $self->no_header;
exit(0);
}
+
+=item B<exported_to>
+
+ my $pack = $Test->exported_to;
+ $Test->exported_to($pack);
+
+Tells Test::Builder what package you exported your functions to.
+
+This method isn't terribly useful since modules which share the same
+Test::Builder object might get exported to different packages and only
+the last one will be honored.
+
+=cut
+
+sub exported_to {
+ my($self, $pack) = @_;
+
+ if( defined $pack ) {
+ $self->{Exported_To} = $pack;
+ }
+ return $self->{Exported_To};
+}
+
=back
=head2 Running tests
-These actually run the tests, analogous to the functions in
-Test::More.
+These actually run the tests, analogous to the functions in Test::More.
+
+They all return true if the test passed, false if the test failed.
$name is always optional.
# store, so we turn it into a boolean.
$test = $test ? 1 : 0;
- unless( $Have_Plan ) {
- require Carp;
- Carp::croak("You tried to run a test without a plan! Gotta have a plan.");
- }
+ $self->_plan_check;
- lock $Curr_Test;
- $Curr_Test++;
+ lock $self->{Curr_Test};
+ $self->{Curr_Test}++;
# In case $name is a string overloaded object, force it to stringify.
- $self->_unoverload(\$name);
+ $self->_unoverload_str(\$name);
$self->diag(<<ERR) if defined $name and $name =~ /^[\d\s]+$/;
You named your test '$name'. You shouldn't use numbers for your test names.
Very confusing.
ERR
- my($pack, $file, $line) = $self->caller;
+ my $todo = $self->todo();
+
+ # Capture the value of $TODO for the rest of this ok() call
+ # so it can more easily be found by other routines.
+ local $self->{TODO} = $todo;
- my $todo = $self->todo($pack);
- $self->_unoverload(\$todo);
+ $self->_unoverload_str(\$todo);
my $out;
my $result = &share({});
}
$out .= "ok";
- $out .= " $Curr_Test" if $self->use_numbers;
+ $out .= " $self->{Curr_Test}" if $self->use_numbers;
if( defined $name ) {
$name =~ s|#|\\#|g; # # in a name can confuse Test::Harness.
$result->{type} = '';
}
- $Test_Results[$Curr_Test-1] = $result;
+ $self->{Test_Results}[$self->{Curr_Test}-1] = $result;
$out .= "\n";
$self->_print($out);
unless( $test ) {
my $msg = $todo ? "Failed (TODO)" : "Failed";
$self->_print_diag("\n") if $ENV{HARNESS_ACTIVE};
- $self->diag(" $msg test ($file at line $line)\n");
+
+ my(undef, $file, $line) = $self->caller;
+ if( defined $name ) {
+ $self->diag(qq[ $msg test '$name'\n]);
+ $self->diag(qq[ at $file line $line.\n]);
+ }
+ else {
+ $self->diag(qq[ $msg test at $file line $line.\n]);
+ }
}
return $test ? 1 : 0;
sub _unoverload {
my $self = shift;
+ my $type = shift;
- local($@,$!);
-
- eval { require overload } || return;
+ $self->_try(sub { require overload } ) || return;
foreach my $thing (@_) {
- eval {
- if( defined $$thing ) {
- if( my $string_meth = overload::Method($$thing, '""') ) {
- $$thing = $$thing->$string_meth();
- }
+ if( $self->_is_object($$thing) ) {
+ if( my $string_meth = overload::Method($$thing, $type) ) {
+ $$thing = $$thing->$string_meth();
}
- };
+ }
+ }
+}
+
+
+sub _is_object {
+ my($self, $thing) = @_;
+
+ return $self->_try(sub { ref $thing && $thing->isa('UNIVERSAL') }) ? 1 : 0;
+}
+
+
+sub _unoverload_str {
+ my $self = shift;
+
+ $self->_unoverload(q[""], @_);
+}
+
+sub _unoverload_num {
+ my $self = shift;
+
+ $self->_unoverload('0+', @_);
+
+ for my $val (@_) {
+ next unless $self->_is_dualvar($$val);
+ $$val = $$val+0;
}
}
+# This is a hack to detect a dualvar such as $!
+sub _is_dualvar {
+ my($self, $val) = @_;
+
+ local $^W = 0;
+ my $numval = $val+0;
+ return 1 if $numval != 0 and $numval ne $val;
+}
+
+
+
=item B<is_eq>
$Test->is_eq($got, $expected, $name);
my($self, $got, $expect, $name) = @_;
local $Level = $Level + 1;
+ $self->_unoverload_str(\$got, \$expect);
+
if( !defined $got || !defined $expect ) {
# undef only matches undef and nothing else
my $test = !defined $got && !defined $expect;
my($self, $got, $expect, $name) = @_;
local $Level = $Level + 1;
+ $self->_unoverload_num(\$got, \$expect);
+
if( !defined $got || !defined $expect ) {
# undef only matches undef and nothing else
my $test = !defined $got && !defined $expect;
}
else {
# force numeric context
- $$val = $$val+0;
+ $self->_unoverload_num($val);
}
}
else {
}
}
+ local $Level = $Level + 1;
return $self->diag(sprintf <<DIAGNOSTIC, $got, $expect);
got: %s
expected: %s
=item B<isnt_num>
- $Test->is_num($got, $dont_expect, $name);
+ $Test->isnt_num($got, $dont_expect, $name);
Like Test::More's isnt(). Checks if $got ne $dont_expect. This is
the numeric version.
$self->_regex_ok($this, $regex, '!~', $name);
}
-=item B<maybe_regex>
-
- $Test->maybe_regex(qr/$regex/);
- $Test->maybe_regex('/$regex/');
-
-Convenience method for building testing functions that take regular
-expressions as arguments, but need to work before perl 5.005.
-Takes a quoted regular expression produced by qr//, or a string
-representing a regular expression.
+=item B<cmp_ok>
-Returns a Perl value which may be used instead of the corresponding
-regular expression, or undef if it's argument is not recognised.
+ $Test->cmp_ok($this, $type, $that, $name);
-For example, a version of like(), sans the useful diagnostic messages,
-could be written as:
+Works just like Test::More's cmp_ok().
- sub laconic_like {
- my ($self, $this, $regex, $name) = @_;
- my $usable_regex = $self->maybe_regex($regex);
- die "expecting regex, found '$regex'\n"
- unless $usable_regex;
- $self->ok($this =~ m/$usable_regex/, $name);
- }
+ $Test->cmp_ok($big_num, '!=', $other_big_num);
=cut
-sub maybe_regex {
- my ($self, $regex) = @_;
- my $usable_regex = undef;
-
- return $usable_regex unless defined $regex;
-
- my($re, $opts);
-
- # Check for qr/foo/
- if( ref $regex eq 'Regexp' ) {
- $usable_regex = $regex;
- }
- # Check for '/foo/' or 'm,foo,'
- elsif( ($re, $opts) = $regex =~ m{^ /(.*)/ (\w*) $ }sx or
- (undef, $re, $opts) = $regex =~ m,^ m([^\w\s]) (.+) \1 (\w*) $,sx
- )
- {
- $usable_regex = length $opts ? "(?$opts)$re" : $re;
- }
+my %numeric_cmps = map { ($_, 1) }
+ ("<", "<=", ">", ">=", "==", "!=", "<=>");
- return $usable_regex;
-};
+sub cmp_ok {
+ my($self, $got, $type, $expect, $name) = @_;
-sub _regex_ok {
- my($self, $this, $regex, $cmp, $name) = @_;
+ # Treat overloaded objects as numbers if we're asked to do a
+ # numeric comparison.
+ my $unoverload = $numeric_cmps{$type} ? '_unoverload_num'
+ : '_unoverload_str';
- local $Level = $Level + 1;
+ $self->$unoverload(\$got, \$expect);
- my $ok = 0;
- my $usable_regex = $self->maybe_regex($regex);
- unless (defined $usable_regex) {
- $ok = $self->ok( 0, $name );
- $self->diag(" '$regex' doesn't look much like a regex to me.");
- return $ok;
- }
+ my $test;
{
- local $^W = 0;
- my $test = $this =~ /$usable_regex/ ? 1 : 0;
- $test = !$test if $cmp eq '!~';
- $ok = $self->ok( $test, $name );
- }
+ local($@,$!,$SIG{__DIE__}); # isolate eval
- unless( $ok ) {
- $this = defined $this ? "'$this'" : 'undef';
- my $match = $cmp eq '=~' ? "doesn't match" : "matches";
- $self->diag(sprintf <<DIAGNOSTIC, $this, $match, $regex);
- %s
- %13s '%s'
-DIAGNOSTIC
-
- }
-
- return $ok;
-}
+ my $code = $self->_caller_context;
-=item B<cmp_ok>
-
- $Test->cmp_ok($this, $type, $that, $name);
+ # Yes, it has to look like this or 5.4.5 won't see the #line
+ # directive.
+ # Don't ask me, man, I just work here.
+ $test = eval "
+$code" . "\$got $type \$expect;";
-Works just like Test::More's cmp_ok().
-
- $Test->cmp_ok($big_num, '!=', $other_big_num);
-
-=cut
-
-sub cmp_ok {
- my($self, $got, $type, $expect, $name) = @_;
-
- my $test;
- {
- local $^W = 0;
- local($@,$!); # don't interfere with $@
- # eval() sometimes resets $!
- $test = eval "\$got $type \$expect";
}
local $Level = $Level + 1;
my $ok = $self->ok($test, $name);
$got = defined $got ? "'$got'" : 'undef';
$expect = defined $expect ? "'$expect'" : 'undef';
+
+ local $Level = $Level + 1;
return $self->diag(sprintf <<DIAGNOSTIC, $got, $type, $expect);
%s
%s
DIAGNOSTIC
}
-=item B<BAILOUT>
- $Test->BAILOUT($reason);
+sub _caller_context {
+ my $self = shift;
+
+ my($pack, $file, $line) = $self->caller(1);
+
+ my $code = '';
+ $code .= "#line $line $file\n" if defined $file and defined $line;
+
+ return $code;
+}
+
+=back
+
+
+=head2 Other Testing Methods
+
+These are methods which are used in the course of writing a test but are not themselves tests.
+
+=over 4
+
+=item B<BAIL_OUT>
+
+ $Test->BAIL_OUT($reason);
Indicates to the Test::Harness that things are going so badly all
testing should terminate. This includes running any additional test
=cut
-sub BAILOUT {
+sub BAIL_OUT {
my($self, $reason) = @_;
+ $self->{Bailed_Out} = 1;
$self->_print("Bail out! $reason");
exit 255;
}
+=for deprecated
+BAIL_OUT() used to be BAILOUT()
+
+=cut
+
+*BAILOUT = \&BAIL_OUT;
+
+
=item B<skip>
$Test->skip;
sub skip {
my($self, $why) = @_;
$why ||= '';
- $self->_unoverload(\$why);
+ $self->_unoverload_str(\$why);
- unless( $Have_Plan ) {
- require Carp;
- Carp::croak("You tried to run tests without a plan! Gotta have a plan.");
- }
+ $self->_plan_check;
- lock($Curr_Test);
- $Curr_Test++;
+ lock($self->{Curr_Test});
+ $self->{Curr_Test}++;
- $Test_Results[$Curr_Test-1] = &share({
+ $self->{Test_Results}[$self->{Curr_Test}-1] = &share({
'ok' => 1,
actual_ok => 1,
name => '',
});
my $out = "ok";
- $out .= " $Curr_Test" if $self->use_numbers;
+ $out .= " $self->{Curr_Test}" if $self->use_numbers;
$out .= " # skip";
$out .= " $why" if length $why;
$out .= "\n";
- $Test->_print($out);
+ $self->_print($out);
return 1;
}
my($self, $why) = @_;
$why ||= '';
- unless( $Have_Plan ) {
- require Carp;
- Carp::croak("You tried to run tests without a plan! Gotta have a plan.");
- }
+ $self->_plan_check;
- lock($Curr_Test);
- $Curr_Test++;
+ lock($self->{Curr_Test});
+ $self->{Curr_Test}++;
- $Test_Results[$Curr_Test-1] = &share({
+ $self->{Test_Results}[$self->{Curr_Test}-1] = &share({
'ok' => 1,
actual_ok => 0,
name => '',
});
my $out = "not ok";
- $out .= " $Curr_Test" if $self->use_numbers;
+ $out .= " $self->{Curr_Test}" if $self->use_numbers;
$out .= " # TODO & SKIP $why\n";
- $Test->_print($out);
+ $self->_print($out);
return 1;
}
=back
+=head2 Test building utility methods
+
+These methods are useful when writing your own test methods.
+
+=over 4
+
+=item B<maybe_regex>
+
+ $Test->maybe_regex(qr/$regex/);
+ $Test->maybe_regex('/$regex/');
+
+Convenience method for building testing functions that take regular
+expressions as arguments, but need to work before perl 5.005.
+
+Takes a quoted regular expression produced by qr//, or a string
+representing a regular expression.
+
+Returns a Perl value which may be used instead of the corresponding
+regular expression, or undef if it's argument is not recognised.
+
+For example, a version of like(), sans the useful diagnostic messages,
+could be written as:
+
+ sub laconic_like {
+ my ($self, $this, $regex, $name) = @_;
+ my $usable_regex = $self->maybe_regex($regex);
+ die "expecting regex, found '$regex'\n"
+ unless $usable_regex;
+ $self->ok($this =~ m/$usable_regex/, $name);
+ }
+
+=cut
+
+
+sub maybe_regex {
+ my ($self, $regex) = @_;
+ my $usable_regex = undef;
+
+ return $usable_regex unless defined $regex;
+
+ my($re, $opts);
+
+ # Check for qr/foo/
+ if( _is_qr($regex) ) {
+ $usable_regex = $regex;
+ }
+ # Check for '/foo/' or 'm,foo,'
+ elsif( ($re, $opts) = $regex =~ m{^ /(.*)/ (\w*) $ }sx or
+ (undef, $re, $opts) = $regex =~ m,^ m([^\w\s]) (.+) \1 (\w*) $,sx
+ )
+ {
+ $usable_regex = length $opts ? "(?$opts)$re" : $re;
+ }
+
+ return $usable_regex;
+}
+
+
+sub _is_qr {
+ my $regex = shift;
+
+ # is_regexp() checks for regexes in a robust manner, say if they're
+ # blessed.
+ return re::is_regexp($regex) if defined &re::is_regexp;
+ return ref $regex eq 'Regexp';
+}
+
+
+sub _regex_ok {
+ my($self, $this, $regex, $cmp, $name) = @_;
+
+ my $ok = 0;
+ my $usable_regex = $self->maybe_regex($regex);
+ unless (defined $usable_regex) {
+ $ok = $self->ok( 0, $name );
+ $self->diag(" '$regex' doesn't look much like a regex to me.");
+ return $ok;
+ }
+
+ {
+ my $test;
+ my $code = $self->_caller_context;
+
+ local($@, $!, $SIG{__DIE__}); # isolate eval
+
+ # Yes, it has to look like this or 5.4.5 won't see the #line
+ # directive.
+ # Don't ask me, man, I just work here.
+ $test = eval "
+$code" . q{$test = $this =~ /$usable_regex/ ? 1 : 0};
+
+ $test = !$test if $cmp eq '!~';
+
+ local $Level = $Level + 1;
+ $ok = $self->ok( $test, $name );
+ }
+
+ unless( $ok ) {
+ $this = defined $this ? "'$this'" : 'undef';
+ my $match = $cmp eq '=~' ? "doesn't match" : "matches";
+
+ local $Level = $Level + 1;
+ $self->diag(sprintf <<DIAGNOSTIC, $this, $match, $regex);
+ %s
+ %13s '%s'
+DIAGNOSTIC
+
+ }
+
+ return $ok;
+}
+
+
+# I'm not ready to publish this. It doesn't deal with array return
+# values from the code or context.
+
+=begin private
+
+=item B<_try>
+
+ my $return_from_code = $Test->try(sub { code });
+ my($return_from_code, $error) = $Test->try(sub { code });
+
+Works like eval BLOCK except it ensures it has no effect on the rest of the test (ie. $@ is not set) nor is effected by outside interference (ie. $SIG{__DIE__}) and works around some quirks in older Perls.
+
+$error is what would normally be in $@.
+
+It is suggested you use this in place of eval BLOCK.
+
+=cut
+
+sub _try {
+ my($self, $code) = @_;
+
+ local $!; # eval can mess up $!
+ local $@; # don't set $@ in the test
+ local $SIG{__DIE__}; # don't trip an outside DIE handler.
+ my $return = eval { $code->() };
+
+ return wantarray ? ($return, $@) : $return;
+}
+
+=end private
+
+
+=item B<is_fh>
+
+ my $is_fh = $Test->is_fh($thing);
+
+Determines if the given $thing can be used as a filehandle.
+
+=cut
+
+sub is_fh {
+ my $self = shift;
+ my $maybe_fh = shift;
+ return 0 unless defined $maybe_fh;
+
+ return 1 if ref $maybe_fh eq 'GLOB'; # its a glob ref
+ return 1 if ref \$maybe_fh eq 'GLOB'; # its a glob
+
+ return eval { $maybe_fh->isa("IO::Handle") } ||
+ # 5.5.4's tied() and can() doesn't like getting undef
+ eval { (tied($maybe_fh) || '')->can('TIEHANDLE') };
+}
+
+
+=back
+
+
=head2 Test style
+
=over 4
=item B<level>
Defaults to 1.
-Setting $Test::Builder::Level overrides. This is typically useful
+Setting L<$Test::Builder::Level> overrides. This is typically useful
localized:
- {
- local $Test::Builder::Level = 2;
- $Test->ok($test);
+ sub my_ok {
+ my $test = shift;
+
+ local $Test::Builder::Level = $Test::Builder::Level + 1;
+ $TB->ok($test);
}
+To be polite to other functions wrapping your own you usually want to increment C<$Level> rather than set it to a constant.
+
=cut
sub level {
Most useful when you can't depend on the test output order, such as
when threads or forking is involved.
-Test::Harness will accept either, but avoid mixing the two styles.
-
Defaults to on.
=cut
my($self, $use_nums) = @_;
if( defined $use_nums ) {
- $Use_Nums = $use_nums;
+ $self->{Use_Nums} = $use_nums;
}
- return $Use_Nums;
+ return $self->{Use_Nums};
}
-=item B<no_header>
- $Test->no_header($no_header);
+=item B<no_diag>
-If set to true, no "1..N" header will be printed.
+ $Test->no_diag($no_diag);
+
+If set true no diagnostics will be printed. This includes calls to
+diag().
=item B<no_ending>
If this is true, none of that will be done.
+=item B<no_header>
+
+ $Test->no_header($no_header);
+
+If set to true, no "1..N" header will be printed.
+
=cut
-sub no_header {
- my($self, $no_header) = @_;
+foreach my $attribute (qw(No_Header No_Ending No_Diag)) {
+ my $method = lc $attribute;
- if( defined $no_header ) {
- $No_Header = $no_header;
- }
- return $No_Header;
-}
+ my $code = sub {
+ my($self, $no) = @_;
-sub no_ending {
- my($self, $no_ending) = @_;
+ if( defined $no ) {
+ $self->{$attribute} = $no;
+ }
+ return $self->{$attribute};
+ };
- if( defined $no_ending ) {
- $No_Ending = $no_ending;
- }
- return $No_Ending;
+ no strict 'refs'; ## no critic
+ *{__PACKAGE__.'::'.$method} = $code;
}
sub diag {
my($self, @msgs) = @_;
+
+ return if $self->no_diag;
return unless @msgs;
# Prevent printing headers when compiling (i.e. -c)
print $fh $msg;
}
+=begin private
=item B<_print_diag>
Like _print, but prints to the current diagnostic filehandle.
+=end private
+
=cut
sub _print_diag {
=cut
-my($Out_FH, $Fail_FH, $Todo_FH);
sub output {
my($self, $fh) = @_;
if( defined $fh ) {
- $Out_FH = _new_fh($fh);
+ $self->{Out_FH} = $self->_new_fh($fh);
}
- return $Out_FH;
+ return $self->{Out_FH};
}
sub failure_output {
my($self, $fh) = @_;
if( defined $fh ) {
- $Fail_FH = _new_fh($fh);
+ $self->{Fail_FH} = $self->_new_fh($fh);
}
- return $Fail_FH;
+ return $self->{Fail_FH};
}
sub todo_output {
my($self, $fh) = @_;
if( defined $fh ) {
- $Todo_FH = _new_fh($fh);
+ $self->{Todo_FH} = $self->_new_fh($fh);
}
- return $Todo_FH;
+ return $self->{Todo_FH};
}
sub _new_fh {
+ my $self = shift;
my($file_or_fh) = shift;
my $fh;
- if( _is_fh($file_or_fh) ) {
+ if( $self->is_fh($file_or_fh) ) {
$fh = $file_or_fh;
}
else {
- $fh = do { local *FH };
- open $fh, ">$file_or_fh" or
- die "Can't open test output log $file_or_fh: $!";
+ open $fh, ">", $file_or_fh or
+ $self->croak("Can't open test output log $file_or_fh: $!");
+ _autoflush($fh);
}
return $fh;
}
-sub _is_fh {
- my $maybe_fh = shift;
-
- return 1 if ref \$maybe_fh eq 'GLOB'; # its a glob
-
- return UNIVERSAL::isa($maybe_fh, 'GLOB') ||
- UNIVERSAL::isa($maybe_fh, 'IO::Handle') ||
-
- # 5.5.4's tied() and can() doesn't like getting undef
- UNIVERSAL::can((tied($maybe_fh) || ''), 'TIEHANDLE');
-}
-
-
sub _autoflush {
my($fh) = shift;
my $old_fh = select $fh;
}
-my $Opened_Testhandles = 0;
+my($Testout, $Testerr);
sub _dup_stdhandles {
my $self = shift;
- $self->_open_testhandles unless $Opened_Testhandles;
+ $self->_open_testhandles;
# Set everything to unbuffered else plain prints to STDOUT will
# come out in the wrong order from our own prints.
- _autoflush(\*TESTOUT);
+ _autoflush($Testout);
_autoflush(\*STDOUT);
- _autoflush(\*TESTERR);
+ _autoflush($Testerr);
_autoflush(\*STDERR);
- $Test->output(\*TESTOUT);
- $Test->failure_output(\*TESTERR);
- $Test->todo_output(\*TESTOUT);
+ $self->output ($Testout);
+ $self->failure_output($Testerr);
+ $self->todo_output ($Testout);
}
+
+my $Opened_Testhandles = 0;
sub _open_testhandles {
+ my $self = shift;
+
+ return if $Opened_Testhandles;
+
# We dup STDOUT and STDERR so people can change them in their
# test suites while still getting normal test output.
- open(TESTOUT, ">&STDOUT") or die "Can't dup STDOUT: $!";
- open(TESTERR, ">&STDERR") or die "Can't dup STDERR: $!";
+ open( $Testout, ">&STDOUT") or die "Can't dup STDOUT: $!";
+ open( $Testerr, ">&STDERR") or die "Can't dup STDERR: $!";
+
+# $self->_copy_io_layers( \*STDOUT, $Testout );
+# $self->_copy_io_layers( \*STDERR, $Testerr );
+
$Opened_Testhandles = 1;
}
+sub _copy_io_layers {
+ my($self, $src, $dst) = @_;
+
+ $self->_try(sub {
+ require PerlIO;
+ my @src_layers = PerlIO::get_layers($src);
+
+ binmode $dst, join " ", map ":$_", @src_layers if @src_layers;
+ });
+}
+
+=item carp
+
+ $tb->carp(@message);
+
+Warns with C<@message> but the message will appear to come from the
+point where the original test function was called (C<$tb->caller>).
+
+=item croak
+
+ $tb->croak(@message);
+
+Dies with C<@message> but the message will appear to come from the
+point where the original test function was called (C<$tb->caller>).
+
+=cut
+
+sub _message_at_caller {
+ my $self = shift;
+
+ local $Level = $Level + 1;
+ my($pack, $file, $line) = $self->caller;
+ return join("", @_) . " at $file line $line.\n";
+}
+
+sub carp {
+ my $self = shift;
+ warn $self->_message_at_caller(@_);
+}
+
+sub croak {
+ my $self = shift;
+ die $self->_message_at_caller(@_);
+}
+
+sub _plan_check {
+ my $self = shift;
+
+ unless( $self->{Have_Plan} ) {
+ local $Level = $Level + 2;
+ $self->croak("You tried to run a test without a plan");
+ }
+}
+
=back
sub current_test {
my($self, $num) = @_;
- lock($Curr_Test);
+ lock($self->{Curr_Test});
if( defined $num ) {
- unless( $Have_Plan ) {
- require Carp;
- Carp::croak("Can't change the current test number without a plan!");
+ unless( $self->{Have_Plan} ) {
+ $self->croak("Can't change the current test number without a plan!");
}
- $Curr_Test = $num;
+ $self->{Curr_Test} = $num;
# If the test counter is being pushed forward fill in the details.
- if( $num > @Test_Results ) {
- my $start = @Test_Results ? $#Test_Results + 1 : 0;
+ my $test_results = $self->{Test_Results};
+ if( $num > @$test_results ) {
+ my $start = @$test_results ? @$test_results : 0;
for ($start..$num-1) {
- $Test_Results[$_] = &share({
+ $test_results->[$_] = &share({
'ok' => 1,
actual_ok => undef,
reason => 'incrementing test number',
}
}
# If backward, wipe history. Its their funeral.
- elsif( $num < @Test_Results ) {
- $#Test_Results = $num - 1;
+ elsif( $num < @$test_results ) {
+ $#{$test_results} = $num - 1;
}
}
- return $Curr_Test;
+ return $self->{Curr_Test};
}
sub summary {
my($self) = shift;
- return map { $_->{'ok'} } @Test_Results;
+ return map { $_->{'ok'} } @{ $self->{Test_Results} };
}
=item B<details>
=cut
sub details {
- return @Test_Results;
+ my $self = shift;
+ return @{ $self->{Test_Results} };
}
=item B<todo>
details). Returns the reason (ie. the value of $TODO) if running as
todo tests, false otherwise.
-todo() is pretty part about finding the right package to look for
-$TODO in. It uses the exported_to() package to find it. If that's
-not set, it's pretty good at guessing the right package to look at.
+todo() is about finding the right package to look for $TODO in. It's
+pretty good at guessing the right package to look at. It first looks for
+the caller based on C<$Level + 1>, since C<todo()> is usually called inside
+a test function. As a last resort it will use C<exported_to()>.
Sometimes there is some confusion about where todo() should be looking
for the $TODO variable. If you want to be sure, tell it explicitly
sub todo {
my($self, $pack) = @_;
- $pack = $pack || $self->exported_to || $self->caller(1);
+ return $self->{TODO} if defined $self->{TODO};
+
+ $pack = $pack || $self->caller(1) || $self->exported_to;
+ return 0 unless $pack;
- no strict 'refs';
+ no strict 'refs'; ## no critic
return defined ${$pack.'::TODO'} ? ${$pack.'::TODO'}
: 0;
}
Like the normal caller(), except it reports according to your level().
+C<$height> will be added to the level().
+
=cut
sub caller {
=item B<_sanity_check>
- _sanity_check();
+ $self->_sanity_check();
Runs a bunch of end of test sanity checks to make sure reality came
through ok. If anything is wrong it will die with a fairly friendly
#'#
sub _sanity_check {
- _whoa($Curr_Test < 0, 'Says here you ran a negative number of tests!');
- _whoa(!$Have_Plan and $Curr_Test,
+ my $self = shift;
+
+ $self->_whoa($self->{Curr_Test} < 0, 'Says here you ran a negative number of tests!');
+ $self->_whoa(!$self->{Have_Plan} and $self->{Curr_Test},
'Somehow your tests ran without a plan!');
- _whoa($Curr_Test != @Test_Results,
+ $self->_whoa($self->{Curr_Test} != @{ $self->{Test_Results} },
'Somehow you got a different number of results than tests ran!');
}
=item B<_whoa>
- _whoa($check, $description);
+ $self->_whoa($check, $description);
A sanity check, similar to assert(). If the $check is true, something
has gone horribly wrong. It will die with the given $description and
=cut
sub _whoa {
- my($check, $desc) = @_;
+ my($self, $check, $desc) = @_;
if( $check ) {
- die <<WHOA;
+ local $Level = $Level + 1;
+ $self->croak(<<"WHOA");
WHOA! $desc
This should never happen! Please contact the author immediately!
WHOA
=cut
-$SIG{__DIE__} = sub {
- # We don't want to muck with death in an eval, but $^S isn't
- # totally reliable. 5.005_03 and 5.6.1 both do the wrong thing
- # with it. Instead, we use caller. This also means it runs under
- # 5.004!
- my $in_eval = 0;
- for( my $stack = 1; my $sub = (CORE::caller($stack))[3]; $stack++ ) {
- $in_eval = 1 if $sub =~ /^\(eval\)/;
- }
- $Test_Died = 1 unless $in_eval;
-};
-
sub _ending {
my $self = shift;
- _sanity_check();
+ my $real_exit_code = $?;
+ $self->_sanity_check();
# Don't bother with an ending if this is a forked copy. Only the parent
# should do the ending.
- do{ _my_exit($?) && return } if $Original_Pid != $$;
+ if( $self->{Original_Pid} != $$ ) {
+ return;
+ }
+
+ # Exit if plan() was never called. This is so "require Test::Simple"
+ # doesn't puke.
+ if( !$self->{Have_Plan} ) {
+ return;
+ }
- # Bailout if plan() was never called. This is so
- # "require Test::Simple" doesn't puke.
- do{ _my_exit(0) && return } if !$Have_Plan && !$Test_Died;
+ # Don't do an ending if we bailed out.
+ if( $self->{Bailed_Out} ) {
+ return;
+ }
# Figure out if we passed or failed and print helpful messages.
- if( @Test_Results ) {
+ my $test_results = $self->{Test_Results};
+ if( @$test_results ) {
# The plan? We have no plan.
- if( $No_Plan ) {
- $self->_print("1..$Curr_Test\n") unless $self->no_header;
- $Expected_Tests = $Curr_Test;
+ if( $self->{No_Plan} ) {
+ $self->_print("1..$self->{Curr_Test}\n") unless $self->no_header;
+ $self->{Expected_Tests} = $self->{Curr_Test};
}
# Auto-extended arrays and elements which aren't explicitly
# filled in with a shared reference will puke under 5.8.0
# ithreads. So we have to fill them in by hand. :(
my $empty_result = &share({});
- for my $idx ( 0..$Expected_Tests-1 ) {
- $Test_Results[$idx] = $empty_result
- unless defined $Test_Results[$idx];
+ for my $idx ( 0..$self->{Expected_Tests}-1 ) {
+ $test_results->[$idx] = $empty_result
+ unless defined $test_results->[$idx];
}
- my $num_failed = grep !$_->{'ok'}, @Test_Results[0..$Expected_Tests-1];
- $num_failed += abs($Expected_Tests - @Test_Results);
+ my $num_failed = grep !$_->{'ok'},
+ @{$test_results}[0..$self->{Curr_Test}-1];
+
+ my $num_extra = $self->{Curr_Test} - $self->{Expected_Tests};
- if( $Curr_Test < $Expected_Tests ) {
- my $s = $Expected_Tests == 1 ? '' : 's';
+ if( $num_extra < 0 ) {
+ my $s = $self->{Expected_Tests} == 1 ? '' : 's';
$self->diag(<<"FAIL");
-Looks like you planned $Expected_Tests test$s but only ran $Curr_Test.
+Looks like you planned $self->{Expected_Tests} test$s but only ran $self->{Curr_Test}.
FAIL
}
- elsif( $Curr_Test > $Expected_Tests ) {
- my $num_extra = $Curr_Test - $Expected_Tests;
- my $s = $Expected_Tests == 1 ? '' : 's';
+ elsif( $num_extra > 0 ) {
+ my $s = $self->{Expected_Tests} == 1 ? '' : 's';
$self->diag(<<"FAIL");
-Looks like you planned $Expected_Tests test$s but ran $num_extra extra.
+Looks like you planned $self->{Expected_Tests} test$s but ran $num_extra extra.
FAIL
}
- elsif ( $num_failed ) {
+
+ if ( $num_failed ) {
+ my $num_tests = $self->{Curr_Test};
my $s = $num_failed == 1 ? '' : 's';
+
+ my $qualifier = $num_extra == 0 ? '' : ' run';
+
$self->diag(<<"FAIL");
-Looks like you failed $num_failed test$s of $Expected_Tests.
+Looks like you failed $num_failed test$s of $num_tests$qualifier.
FAIL
}
- if( $Test_Died ) {
+ if( $real_exit_code ) {
$self->diag(<<"FAIL");
-Looks like your test died just after $Curr_Test.
+Looks like your test died just after $self->{Curr_Test}.
FAIL
_my_exit( 255 ) && return;
}
- _my_exit( $num_failed <= 254 ? $num_failed : 254 ) && return;
+ my $exit_code;
+ if( $num_failed ) {
+ $exit_code = $num_failed <= 254 ? $num_failed : 254;
+ }
+ elsif( $num_extra != 0 ) {
+ $exit_code = 255;
+ }
+ else {
+ $exit_code = 0;
+ }
+
+ _my_exit( $exit_code ) && return;
}
- elsif ( $Skip_All ) {
+ elsif ( $self->{Skip_All} ) {
_my_exit( 0 ) && return;
}
- elsif ( $Test_Died ) {
+ elsif ( $real_exit_code ) {
$self->diag(<<'FAIL');
Looks like your test died before it could output anything.
FAIL
So the exit codes are...
0 all tests successful
- 255 test died
+ 255 test died or all passed but wrong # of tests run
any other number how many failed (including missing or extras)
If you fail more than 254 tests, it will be reported as 254.
=head1 THREADS
-In perl 5.8.0 and later, Test::Builder is thread-safe. The test
+In perl 5.8.1 and later, Test::Builder is thread-safe. The test
number is shared amongst all threads. This means if one thread sets
the test number using current_test() they will all be effected.
+While versions earlier than 5.8.1 had threads they contain too many
+bugs to support.
+
Test::Builder is only thread-aware if threads.pm is loaded I<before>
Test::Builder.