--- /dev/null
+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 strict;
+our ($VERSION);
+$VERSION = '0.30';
+$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'}) {
+ require threads::shared;
+
+ # Hack around YET ANOTHER threads::shared bug. It would
+ # occassionally forget the contents of the variable when sharing it.
+ # So we first copy the data, then share, then put our copy back.
+ *share = sub (\[$@%]) {
+ my $type = ref $_[0];
+ my $data;
+
+ if( $type eq 'HASH' ) {
+ %$data = %{$_[0]};
+ }
+ elsif( $type eq 'ARRAY' ) {
+ @$data = @{$_[0]};
+ }
+ elsif( $type eq 'SCALAR' ) {
+ $$data = ${$_[0]};
+ }
+ else {
+ die "Unknown type: ".$type;
+ }
+
+ $_[0] = &threads::shared::share($_[0]);
+
+ if( $type eq 'HASH' ) {
+ %{$_[0]} = %$data;
+ }
+ elsif( $type eq 'ARRAY' ) {
+ @{$_[0]} = @$data;
+ }
+ elsif( $type eq 'SCALAR' ) {
+ ${$_[0]} = $$data;
+ }
+ else {
+ die "Unknown type: ".$type;
+ }
+
+ return $_[0];
+ };
+ }
+ # 5.8.0's threads::shared is busted when threads are off.
+ # We emulate it here.
+ else {
+ *share = sub { return $_[0] };
+ *lock = sub { 0 };
+ }
+}
+
+
+=head1 NAME
+
+Test::Builder - Backend for building test libraries
+
+=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(@_);
+
+ $self->export_to_level(1, $self, 'ok');
+ }
+
+ sub ok {
+ my($test, $name) = @_;
+
+ $Test->ok($test, $name);
+ }
+
+
+=head1 DESCRIPTION
+
+Test::Simple and Test::More have proven to be popular testing modules,
+but they're not always flexible enough. Test::Builder provides the a
+building block upon which to write your own test libraries I<which can
+work together>.
+
+=head2 Construction
+
+=over 4
+
+=item B<new>
+
+ my $Test = Test::Builder->new;
+
+Returns a Test::Builder object representing the current state of the
+test.
+
+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. 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 ||= $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>
+
+ $Test->reset;
+
+Reinitializes the Test::Builder singleton to its original state.
+Mostly useful for tests run in persistent environments where the same
+test might be run multiple times in the same process.
+
+=cut
+
+our ($Level);
+
+sub reset {
+ my ($self) = @_;
+
+ # 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;
+
+ $self->{Test_Died} = 0;
+ $self->{Have_Plan} = 0;
+ $self->{No_Plan} = 0;
+ $self->{Original_Pid} = $$;
+
+ share($self->{Curr_Test});
+ $self->{Curr_Test} = 0;
+ $self->{Test_Results} = &share([]);
+
+ $self->{Exported_To} = undef;
+ $self->{Expected_Tests} = 0;
+
+ $self->{Skip_All} = 0;
+
+ $self->{Use_Nums} = 1;
+
+ $self->{No_Header} = 0;
+ $self->{No_Ending} = 0;
+
+ $self->_dup_stdhandles unless $^C;
+
+ return undef;
+}
+
+=back
+
+=head2 Setting up tests
+
+These methods are for setting up tests and declaring how many there
+are. You usually only want to call one of these methods.
+
+=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 ) {
+ $self->{Exported_To} = $pack;
+ }
+ return $self->{Exported_To};
+}
+
+=item B<plan>
+
+ $Test->plan('no_plan');
+ $Test->plan( skip_all => $reason );
+ $Test->plan( tests => $num_tests );
+
+A convenient way to set up your tests. Call this and Test::Builder
+will print the appropriate headers and take the appropriate actions.
+
+If you call plan(), don't call any of the other methods below.
+
+=cut
+
+sub plan {
+ my($self, $cmd, $arg) = @_;
+
+ return unless $cmd;
+
+ if( $self->{Have_Plan} ) {
+ die sprintf "You tried to plan twice! Second plan at %s line %d\n",
+ ($self->caller)[1,2];
+ }
+
+ if( $cmd eq 'no_plan' ) {
+ $self->no_plan;
+ }
+ elsif( $cmd eq 'skip_all' ) {
+ return $self->skip_all($arg);
+ }
+ elsif( $cmd eq 'tests' ) {
+ if( $arg ) {
+ 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";
+ }
+ elsif( !$arg ) {
+ die "You said to run 0 tests! You've got to run something.\n";
+ }
+ }
+ else {
+ require Carp;
+ my @args = grep { defined } ($cmd, $arg);
+ Carp::croak("plan() doesn't understand @args");
+ }
+
+ return 1;
+}
+
+=item B<expected_tests>
+
+ my $max = $Test->expected_tests;
+ $Test->expected_tests($max);
+
+Gets/sets the # of tests we expect this test to run and prints out
+the appropriate headers.
+
+=cut
+
+sub expected_tests {
+ my $self = shift;
+ my($max) = @_;
+
+ if( @_ ) {
+ die "Number of tests must be a postive integer. You gave it '$max'.\n"
+ unless $max =~ /^\+?\d+$/ and $max > 0;
+
+ $self->{Expected_Tests} = $max;
+ $self->{Have_Plan} = 1;
+
+ $self->_print("1..$max\n") unless $self->no_header;
+ }
+ return $self->{Expected_Tests};
+}
+
+
+=item B<no_plan>
+
+ $Test->no_plan;
+
+Declares that this test will run an indeterminate # of tests.
+
+=cut
+
+sub no_plan {
+ 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 {
+ my $self = shift;
+
+ return($self->{Expected_Tests}) if $self->{Expected_Tests};
+ return('no_plan') if $self->{No_Plan};
+ return(undef);
+};
+
+
+=item B<skip_all>
+
+ $Test->skip_all;
+ $Test->skip_all($reason);
+
+Skips all the tests, using the given $reason. Exits immediately with 0.
+
+=cut
+
+sub skip_all {
+ my($self, $reason) = @_;
+
+ my $out = "1..0";
+ $out .= " # Skip $reason" if $reason;
+ $out .= "\n";
+
+ $self->{Skip_All} = 1;
+
+ $self->_print($out) unless $self->no_header;
+ exit(0);
+}
+
+=back
+
+=head2 Running tests
+
+These actually run the tests, analogous to the functions in
+Test::More.
+
+$name is always optional.
+
+=over 4
+
+=item B<ok>
+
+ $Test->ok($test, $name);
+
+Your basic test. Pass if $test is true, fail if $test is false. Just
+like Test::Simple's ok().
+
+=cut
+
+sub ok {
+ my($self, $test, $name) = @_;
+
+ # $test might contain an object which we don't want to accidentally
+ # store, so we turn it into a boolean.
+ $test = $test ? 1 : 0;
+
+ unless( $self->{Have_Plan} ) {
+ require Carp;
+ Carp::croak("You tried to run a test without a plan! Gotta have a plan.");
+ }
+
+ lock $self->{Curr_Test};
+ $self->{Curr_Test}++;
+
+ # In case $name is a string overloaded object, force it to stringify.
+ $self->_unoverload(\$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($pack);
+ $self->_unoverload(\$todo);
+
+ my $out;
+ my $result = &share({});
+
+ unless( $test ) {
+ $out .= "not ";
+ @$result{ 'ok', 'actual_ok' } = ( ( $todo ? 1 : 0 ), 0 );
+ }
+ else {
+ @$result{ 'ok', 'actual_ok' } = ( 1, $test );
+ }
+
+ $out .= "ok";
+ $out .= " $self->{Curr_Test}" if $self->use_numbers;
+
+ if( defined $name ) {
+ $name =~ s|#|\\#|g; # # in a name can confuse Test::Harness.
+ $out .= " - $name";
+ $result->{name} = $name;
+ }
+ else {
+ $result->{name} = '';
+ }
+
+ if( $todo ) {
+ $out .= " # TODO $todo";
+ $result->{reason} = $todo;
+ $result->{type} = 'todo';
+ }
+ else {
+ $result->{reason} = '';
+ $result->{type} = '';
+ }
+
+ $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");
+ }
+
+ return $test ? 1 : 0;
+}
+
+
+sub _unoverload {
+ my $self = shift;
+
+ local($@,$!);
+
+ eval { require overload } || return;
+
+ foreach my $thing (@_) {
+ eval {
+ if( defined $$thing ) {
+ if( my $string_meth = overload::Method($$thing, '""') ) {
+ $$thing = $$thing->$string_meth();
+ }
+ }
+ };
+ }
+}
+
+
+=item B<is_eq>
+
+ $Test->is_eq($got, $expected, $name);
+
+Like Test::More's is(). Checks if $got eq $expected. This is the
+string version.
+
+=item B<is_num>
+
+ $Test->is_num($got, $expected, $name);
+
+Like Test::More's is(). Checks if $got == $expected. This is the
+numeric version.
+
+=cut
+
+sub is_eq {
+ my($self, $got, $expect, $name) = @_;
+ local $Level = $Level + 1;
+
+ if( !defined $got || !defined $expect ) {
+ # undef only matches undef and nothing else
+ my $test = !defined $got && !defined $expect;
+
+ $self->ok($test, $name);
+ $self->_is_diag($got, 'eq', $expect) unless $test;
+ return $test;
+ }
+
+ return $self->cmp_ok($got, 'eq', $expect, $name);
+}
+
+sub is_num {
+ my($self, $got, $expect, $name) = @_;
+ local $Level = $Level + 1;
+
+ if( !defined $got || !defined $expect ) {
+ # undef only matches undef and nothing else
+ my $test = !defined $got && !defined $expect;
+
+ $self->ok($test, $name);
+ $self->_is_diag($got, '==', $expect) unless $test;
+ return $test;
+ }
+
+ return $self->cmp_ok($got, '==', $expect, $name);
+}
+
+sub _is_diag {
+ my($self, $got, $type, $expect) = @_;
+
+ foreach my $val (\$got, \$expect) {
+ if( defined $$val ) {
+ if( $type eq 'eq' ) {
+ # quote and force string context
+ $$val = "'$$val'"
+ }
+ else {
+ # force numeric context
+ $$val = $$val+0;
+ }
+ }
+ else {
+ $$val = 'undef';
+ }
+ }
+
+ return $self->diag(sprintf <<DIAGNOSTIC, $got, $expect);
+ got: %s
+ expected: %s
+DIAGNOSTIC
+
+}
+
+=item B<isnt_eq>
+
+ $Test->isnt_eq($got, $dont_expect, $name);
+
+Like Test::More's isnt(). Checks if $got ne $dont_expect. This is
+the string version.
+
+=item B<isnt_num>
+
+ $Test->is_num($got, $dont_expect, $name);
+
+Like Test::More's isnt(). Checks if $got ne $dont_expect. This is
+the numeric version.
+
+=cut
+
+sub isnt_eq {
+ my($self, $got, $dont_expect, $name) = @_;
+ local $Level = $Level + 1;
+
+ if( !defined $got || !defined $dont_expect ) {
+ # undef only matches undef and nothing else
+ my $test = defined $got || defined $dont_expect;
+
+ $self->ok($test, $name);
+ $self->_cmp_diag($got, 'ne', $dont_expect) unless $test;
+ return $test;
+ }
+
+ return $self->cmp_ok($got, 'ne', $dont_expect, $name);
+}
+
+sub isnt_num {
+ my($self, $got, $dont_expect, $name) = @_;
+ local $Level = $Level + 1;
+
+ if( !defined $got || !defined $dont_expect ) {
+ # undef only matches undef and nothing else
+ my $test = defined $got || defined $dont_expect;
+
+ $self->ok($test, $name);
+ $self->_cmp_diag($got, '!=', $dont_expect) unless $test;
+ return $test;
+ }
+
+ return $self->cmp_ok($got, '!=', $dont_expect, $name);
+}
+
+
+=item B<like>
+
+ $Test->like($this, qr/$regex/, $name);
+ $Test->like($this, '/$regex/', $name);
+
+Like Test::More's like(). Checks if $this matches the given $regex.
+
+You'll want to avoid qr// if you want your tests to work before 5.005.
+
+=item B<unlike>
+
+ $Test->unlike($this, qr/$regex/, $name);
+ $Test->unlike($this, '/$regex/', $name);
+
+Like Test::More's unlike(). Checks if $this B<does not match> the
+given $regex.
+
+=cut
+
+sub like {
+ my($self, $this, $regex, $name) = @_;
+
+ local $Level = $Level + 1;
+ $self->_regex_ok($this, $regex, '=~', $name);
+}
+
+sub unlike {
+ my($self, $this, $regex, $name) = @_;
+
+ local $Level = $Level + 1;
+ $self->_regex_ok($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.
+
+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( 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;
+ }
+
+ return $usable_regex;
+};
+
+sub _regex_ok {
+ my($self, $this, $regex, $cmp, $name) = @_;
+
+ local $Level = $Level + 1;
+
+ 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;
+ }
+
+ {
+ local $^W = 0;
+ my $test = $this =~ /$usable_regex/ ? 1 : 0;
+ $test = !$test if $cmp eq '!~';
+ $ok = $self->ok( $test, $name );
+ }
+
+ 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;
+}
+
+=item B<cmp_ok>
+
+ $Test->cmp_ok($this, $type, $that, $name);
+
+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);
+
+ unless( $ok ) {
+ if( $type =~ /^(eq|==)$/ ) {
+ $self->_is_diag($got, $type, $expect);
+ }
+ else {
+ $self->_cmp_diag($got, $type, $expect);
+ }
+ }
+ return $ok;
+}
+
+sub _cmp_diag {
+ my($self, $got, $type, $expect) = @_;
+
+ $got = defined $got ? "'$got'" : 'undef';
+ $expect = defined $expect ? "'$expect'" : 'undef';
+ return $self->diag(sprintf <<DIAGNOSTIC, $got, $type, $expect);
+ %s
+ %s
+ %s
+DIAGNOSTIC
+}
+
+=item B<BAILOUT>
+
+ $Test->BAILOUT($reason);
+
+Indicates to the Test::Harness that things are going so badly all
+testing should terminate. This includes running any additional test
+scripts.
+
+It will exit with 255.
+
+=cut
+
+sub BAILOUT {
+ my($self, $reason) = @_;
+
+ $self->_print("Bail out! $reason");
+ exit 255;
+}
+
+=item B<skip>
+
+ $Test->skip;
+ $Test->skip($why);
+
+Skips the current test, reporting $why.
+
+=cut
+
+sub skip {
+ my($self, $why) = @_;
+ $why ||= '';
+ $self->_unoverload(\$why);
+
+ unless( $self->{Have_Plan} ) {
+ require Carp;
+ Carp::croak("You tried to run tests without a plan! Gotta have a plan.");
+ }
+
+ lock($self->{Curr_Test});
+ $self->{Curr_Test}++;
+
+ $self->{Test_Results}[$self->{Curr_Test}-1] = &share({
+ 'ok' => 1,
+ actual_ok => 1,
+ name => '',
+ type => 'skip',
+ reason => $why,
+ });
+
+ my $out = "ok";
+ $out .= " $self->{Curr_Test}" if $self->use_numbers;
+ $out .= " # skip";
+ $out .= " $why" if length $why;
+ $out .= "\n";
+
+ $self->_print($out);
+
+ return 1;
+}
+
+
+=item B<todo_skip>
+
+ $Test->todo_skip;
+ $Test->todo_skip($why);
+
+Like skip(), only it will declare the test as failing and TODO. Similar
+to
+
+ print "not ok $tnum # TODO $why\n";
+
+=cut
+
+sub todo_skip {
+ my($self, $why) = @_;
+ $why ||= '';
+
+ unless( $self->{Have_Plan} ) {
+ require Carp;
+ Carp::croak("You tried to run tests without a plan! Gotta have a plan.");
+ }
+
+ lock($self->{Curr_Test});
+ $self->{Curr_Test}++;
+
+ $self->{Test_Results}[$self->{Curr_Test}-1] = &share({
+ 'ok' => 1,
+ actual_ok => 0,
+ name => '',
+ type => 'todo_skip',
+ reason => $why,
+ });
+
+ my $out = "not ok";
+ $out .= " $self->{Curr_Test}" if $self->use_numbers;
+ $out .= " # TODO & SKIP $why\n";
+
+ $self->_print($out);
+
+ return 1;
+}
+
+
+=begin _unimplemented
+
+=item B<skip_rest>
+
+ $Test->skip_rest;
+ $Test->skip_rest($reason);
+
+Like skip(), only it skips all the rest of the tests you plan to run
+and terminates the test.
+
+If you're running under no_plan, it skips once and terminates the
+test.
+
+=end _unimplemented
+
+=back
+
+
+=head2 Test style
+
+=over 4
+
+=item B<level>
+
+ $Test->level($how_high);
+
+How far up the call stack should $Test look when reporting where the
+test failed.
+
+Defaults to 1.
+
+Setting $Test::Builder::Level overrides. This is typically useful
+localized:
+
+ {
+ local $Test::Builder::Level = 2;
+ $Test->ok($test);
+ }
+
+=cut
+
+sub level {
+ my($self, $level) = @_;
+
+ if( defined $level ) {
+ $Level = $level;
+ }
+ return $Level;
+}
+
+
+=item B<use_numbers>
+
+ $Test->use_numbers($on_or_off);
+
+Whether or not the test should output numbers. That is, this if true:
+
+ ok 1
+ ok 2
+ ok 3
+
+or this if false
+
+ ok
+ ok
+ ok
+
+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
+
+sub use_numbers {
+ my($self, $use_nums) = @_;
+
+ if( defined $use_nums ) {
+ $self->{Use_Nums} = $use_nums;
+ }
+ return $self->{Use_Nums};
+}
+
+=item B<no_header>
+
+ $Test->no_header($no_header);
+
+If set to true, no "1..N" header will be printed.
+
+=item B<no_ending>
+
+ $Test->no_ending($no_ending);
+
+Normally, Test::Builder does some extra diagnostics when the test
+ends. It also changes the exit code as described below.
+
+If this is true, none of that will be done.
+
+=cut
+
+sub no_header {
+ my($self, $no_header) = @_;
+
+ if( defined $no_header ) {
+ $self->{No_Header} = $no_header;
+ }
+ return $self->{No_Header};
+}
+
+sub no_ending {
+ my($self, $no_ending) = @_;
+
+ if( defined $no_ending ) {
+ $self->{No_Ending} = $no_ending;
+ }
+ return $self->{No_Ending};
+}
+
+
+=back
+
+=head2 Output
+
+Controlling where the test output goes.
+
+It's ok for your test to change where STDOUT and STDERR point to,
+Test::Builder's default output settings will not be affected.
+
+=over 4
+
+=item B<diag>
+
+ $Test->diag(@msgs);
+
+Prints out the given @msgs. Like C<print>, arguments are simply
+appended together.
+
+Normally, it uses the failure_output() handle, but if this is for a
+TODO test, the todo_output() handle is used.
+
+Output will be indented and marked with a # so as not to interfere
+with test output. A newline will be put on the end if there isn't one
+already.
+
+We encourage using this rather than calling print directly.
+
+Returns false. Why? Because diag() is often used in conjunction with
+a failing test (C<ok() || diag()>) it "passes through" the failure.
+
+ return ok(...) || diag(...);
+
+=for blame transfer
+Mark Fowler <mark@twoshortplanks.com>
+
+=cut
+
+sub diag {
+ my($self, @msgs) = @_;
+ return unless @msgs;
+
+ # Prevent printing headers when compiling (i.e. -c)
+ return if $^C;
+
+ # Smash args together like print does.
+ # Convert undef to 'undef' so its readable.
+ my $msg = join '', map { defined($_) ? $_ : 'undef' } @msgs;
+
+ # Escape each line with a #.
+ $msg =~ s/^/# /gm;
+
+ # Stick a newline on the end if it needs it.
+ $msg .= "\n" unless $msg =~ /\n\Z/;
+
+ local $Level = $Level + 1;
+ $self->_print_diag($msg);
+
+ return 0;
+}
+
+=begin _private
+
+=item B<_print>
+
+ $Test->_print(@msgs);
+
+Prints to the output() filehandle.
+
+=end _private
+
+=cut
+
+sub _print {
+ my($self, @msgs) = @_;
+
+ # Prevent printing headers when only compiling. Mostly for when
+ # tests are deparsed with B::Deparse
+ return if $^C;
+
+ my $msg = join '', @msgs;
+
+ local($\, $", $,) = (undef, ' ', '');
+ my $fh = $self->output;
+
+ # Escape each line after the first with a # so we don't
+ # confuse Test::Harness.
+ $msg =~ s/\n(.)/\n# $1/sg;
+
+ # Stick a newline on the end if it needs it.
+ $msg .= "\n" unless $msg =~ /\n\Z/;
+
+ print $fh $msg;
+}
+
+
+=item B<_print_diag>
+
+ $Test->_print_diag(@msg);
+
+Like _print, but prints to the current diagnostic filehandle.
+
+=cut
+
+sub _print_diag {
+ my $self = shift;
+
+ local($\, $", $,) = (undef, ' ', '');
+ my $fh = $self->todo ? $self->todo_output : $self->failure_output;
+ print $fh @_;
+}
+
+=item B<output>
+
+ $Test->output($fh);
+ $Test->output($file);
+
+Where normal "ok/not ok" test output should go.
+
+Defaults to STDOUT.
+
+=item B<failure_output>
+
+ $Test->failure_output($fh);
+ $Test->failure_output($file);
+
+Where diagnostic output on test failures and diag() should go.
+
+Defaults to STDERR.
+
+=item B<todo_output>
+
+ $Test->todo_output($fh);
+ $Test->todo_output($file);
+
+Where diagnostics about todo test failures and diag() should go.
+
+Defaults to STDOUT.
+
+=cut
+
+sub output {
+ my($self, $fh) = @_;
+
+ if( defined $fh ) {
+ $self->{Out_FH} = _new_fh($fh);
+ }
+ return $self->{Out_FH};
+}
+
+sub failure_output {
+ my($self, $fh) = @_;
+
+ if( defined $fh ) {
+ $self->{Fail_FH} = _new_fh($fh);
+ }
+ return $self->{Fail_FH};
+}
+
+sub todo_output {
+ my($self, $fh) = @_;
+
+ if( defined $fh ) {
+ $self->{Todo_FH} = _new_fh($fh);
+ }
+ return $self->{Todo_FH};
+}
+
+
+sub _new_fh {
+ my($file_or_fh) = shift;
+
+ my $fh;
+ if( _is_fh($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: $!";
+ _autoflush($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;
+ $| = 1;
+ select $old_fh;
+}
+
+
+sub _dup_stdhandles {
+ my $self = shift;
+
+ $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(\*STDOUT);
+ _autoflush(\*TESTERR);
+ _autoflush(\*STDERR);
+
+ $self->output(\*TESTOUT);
+ $self->failure_output(\*TESTERR);
+ $self->todo_output(\*TESTOUT);
+}
+
+
+my $Opened_Testhandles = 0;
+sub _open_testhandles {
+ 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: $!";
+ $Opened_Testhandles = 1;
+}
+
+
+=back
+
+
+=head2 Test Status and Info
+
+=over 4
+
+=item B<current_test>
+
+ my $curr_test = $Test->current_test;
+ $Test->current_test($num);
+
+Gets/sets the current test number we're on. You usually shouldn't
+have to set this.
+
+If set forward, the details of the missing tests are filled in as 'unknown'.
+if set backward, the details of the intervening tests are deleted. You
+can erase history if you really want to.
+
+=cut
+
+sub current_test {
+ my($self, $num) = @_;
+
+ lock($self->{Curr_Test});
+ if( defined $num ) {
+ unless( $self->{Have_Plan} ) {
+ require Carp;
+ Carp::croak("Can't change the current test number without a plan!");
+ }
+
+ $self->{Curr_Test} = $num;
+
+ # If the test counter is being pushed forward fill in the details.
+ my $test_results = $self->{Test_Results};
+ if( $num > @$test_results ) {
+ my $start = @$test_results ? @$test_results : 0;
+ for ($start..$num-1) {
+ $test_results->[$_] = &share({
+ 'ok' => 1,
+ actual_ok => undef,
+ reason => 'incrementing test number',
+ type => 'unknown',
+ name => undef
+ });
+ }
+ }
+ # If backward, wipe history. Its their funeral.
+ elsif( $num < @$test_results ) {
+ $#{$test_results} = $num - 1;
+ }
+ }
+ return $self->{Curr_Test};
+}
+
+
+=item B<summary>
+
+ my @tests = $Test->summary;
+
+A simple summary of the tests so far. True for pass, false for fail.
+This is a logical pass/fail, so todos are passes.
+
+Of course, test #1 is $tests[0], etc...
+
+=cut
+
+sub summary {
+ my($self) = shift;
+
+ return map { $_->{'ok'} } @{ $self->{Test_Results} };
+}
+
+=item B<details>
+
+ my @tests = $Test->details;
+
+Like summary(), but with a lot more detail.
+
+ $tests[$test_num - 1] =
+ { 'ok' => is the test considered a pass?
+ actual_ok => did it literally say 'ok'?
+ name => name of the test (if any)
+ type => type of test (if any, see below).
+ reason => reason for the above (if any)
+ };
+
+'ok' is true if Test::Harness will consider the test to be a pass.
+
+'actual_ok' is a reflection of whether or not the test literally
+printed 'ok' or 'not ok'. This is for examining the result of 'todo'
+tests.
+
+'name' is the name of the test.
+
+'type' indicates if it was a special test. Normal tests have a type
+of ''. Type can be one of the following:
+
+ skip see skip()
+ todo see todo()
+ todo_skip see todo_skip()
+ unknown see below
+
+Sometimes the Test::Builder test counter is incremented without it
+printing any test output, for example, when current_test() is changed.
+In these cases, Test::Builder doesn't know the result of the test, so
+it's type is 'unkown'. These details for these tests are filled in.
+They are considered ok, but the name and actual_ok is left undef.
+
+For example "not ok 23 - hole count # TODO insufficient donuts" would
+result in this structure:
+
+ $tests[22] = # 23 - 1, since arrays start from 0.
+ { ok => 1, # logically, the test passed since it's todo
+ actual_ok => 0, # in absolute terms, it failed
+ name => 'hole count',
+ type => 'todo',
+ reason => 'insufficient donuts'
+ };
+
+=cut
+
+sub details {
+ my $self = shift;
+ return @{ $self->{Test_Results} };
+}
+
+=item B<todo>
+
+ my $todo_reason = $Test->todo;
+ my $todo_reason = $Test->todo($pack);
+
+todo() looks for a $TODO variable in your tests. If set, all tests
+will be considered 'todo' (see Test::More and Test::Harness for
+details). Returns the reason (ie. the value of $TODO) if running as
+todo tests, false otherwise.
+
+todo() is 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 based on $Level.
+
+Sometimes there is some confusion about where todo() should be looking
+for the $TODO variable. If you want to be sure, tell it explicitly
+what $pack to use.
+
+=cut
+
+sub todo {
+ my($self, $pack) = @_;
+
+ $pack = $pack || $self->exported_to || $self->caller($Level);
+ return 0 unless $pack;
+
+ no strict 'refs';
+ return defined ${$pack.'::TODO'} ? ${$pack.'::TODO'}
+ : 0;
+}
+
+=item B<caller>
+
+ my $package = $Test->caller;
+ my($pack, $file, $line) = $Test->caller;
+ my($pack, $file, $line) = $Test->caller($height);
+
+Like the normal caller(), except it reports according to your level().
+
+=cut
+
+sub caller {
+ my($self, $height) = @_;
+ $height ||= 0;
+
+ my @caller = CORE::caller($self->level + $height + 1);
+ return wantarray ? @caller : $caller[0];
+}
+
+=back
+
+=cut
+
+=begin _private
+
+=over 4
+
+=item B<_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
+error message.
+
+=cut
+
+#'#
+sub _sanity_check {
+ my $self = shift;
+
+ _whoa($self->{Curr_Test} < 0, 'Says here you ran a negative number of tests!');
+ _whoa(!$self->{Have_Plan} and $self->{Curr_Test},
+ 'Somehow your tests ran without a plan!');
+ _whoa($self->{Curr_Test} != @{ $self->{Test_Results} },
+ 'Somehow you got a different number of results than tests ran!');
+}
+
+=item B<_whoa>
+
+ _whoa($check, $description);
+
+A sanity check, similar to assert(). If the $check is true, something
+has gone horribly wrong. It will die with the given $description and
+a note to contact the author.
+
+=cut
+
+sub _whoa {
+ my($check, $desc) = @_;
+ if( $check ) {
+ die <<WHOA;
+WHOA! $desc
+This should never happen! Please contact the author immediately!
+WHOA
+ }
+}
+
+=item B<_my_exit>
+
+ _my_exit($exit_num);
+
+Perl seems to have some trouble with exiting inside an END block. 5.005_03
+and 5.6.1 both seem to do odd things. Instead, this function edits $?
+directly. It should ONLY be called from inside an END block. It
+doesn't actually exit, that's your job.
+
+=cut
+
+sub _my_exit {
+ $? = $_[0];
+
+ return 1;
+}
+
+
+=back
+
+=end _private
+
+=cut
+
+$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->{Test_Died} = 1 unless $in_eval;
+};
+
+sub _ending {
+ my $self = shift;
+
+ $self->_sanity_check();
+
+ # Don't bother with an ending if this is a forked copy. Only the parent
+ # should do the ending.
+ # Exit if plan() was never called. This is so "require Test::Simple"
+ # doesn't puke.
+ if( ($self->{Original_Pid} != $$) or
+ (!$self->{Have_Plan} && !$self->{Test_Died}) )
+ {
+ _my_exit($?);
+ return;
+ }
+
+ # Figure out if we passed or failed and print helpful messages.
+ my $test_results = $self->{Test_Results};
+ if( @$test_results ) {
+ # The plan? We have no plan.
+ 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 $idx ( 0..$self->{Expected_Tests}-1 ) {
+ $test_results->[$idx] = $empty_result
+ unless defined $test_results->[$idx];
+ }
+
+ my $num_failed = grep !$_->{'ok'},
+ @{$test_results}[0..$self->{Expected_Tests}-1];
+ $num_failed += abs($self->{Expected_Tests} - @$test_results);
+
+ if( $self->{Curr_Test} < $self->{Expected_Tests} ) {
+ my $s = $self->{Expected_Tests} == 1 ? '' : 's';
+ $self->diag(<<"FAIL");
+Looks like you planned $self->{Expected_Tests} test$s but only ran $self->{Curr_Test}.
+FAIL
+ }
+ elsif( $self->{Curr_Test} > $self->{Expected_Tests} ) {
+ my $num_extra = $self->{Curr_Test} - $self->{Expected_Tests};
+ my $s = $self->{Expected_Tests} == 1 ? '' : 's';
+ $self->diag(<<"FAIL");
+Looks like you planned $self->{Expected_Tests} test$s but ran $num_extra extra.
+FAIL
+ }
+ elsif ( $num_failed ) {
+ my $s = $num_failed == 1 ? '' : 's';
+ $self->diag(<<"FAIL");
+Looks like you failed $num_failed test$s of $self->{Expected_Tests}.
+FAIL
+ }
+
+ if( $self->{Test_Died} ) {
+ $self->diag(<<"FAIL");
+Looks like your test died just after $self->{Curr_Test}.
+FAIL
+
+ _my_exit( 255 ) && return;
+ }
+
+ _my_exit( $num_failed <= 254 ? $num_failed : 254 ) && return;
+ }
+ elsif ( $self->{Skip_All} ) {
+ _my_exit( 0 ) && return;
+ }
+ elsif ( $self->{Test_Died} ) {
+ $self->diag(<<'FAIL');
+Looks like your test died before it could output anything.
+FAIL
+ _my_exit( 255 ) && return;
+ }
+ else {
+ $self->diag("No tests run!\n");
+ _my_exit( 255 ) && return;
+ }
+}
+
+END {
+ $Test->_ending if defined $Test and !$Test->no_ending;
+}
+
+=head1 EXIT CODES
+
+If all your tests passed, Test::Builder will exit with zero (which is
+normal). If anything failed it will exit with how many failed. If
+you run less (or more) tests than you planned, the missing (or extras)
+will be considered failures. If no tests were ever run Test::Builder
+will throw a warning and exit with 255. If the test died, even after
+having successfully completed all its tests, it will still be
+considered a failure and will exit with 255.
+
+So the exit codes are...
+
+ 0 all tests successful
+ 255 test died
+ 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
+number is shared amongst all threads. This means if one thread sets
+the test number using current_test() they will all be effected.
+
+Test::Builder is only thread-aware if threads.pm is loaded I<before>
+Test::Builder.
+
+=head1 EXAMPLES
+
+CPAN can provide the best examples. Test::Simple, Test::More,
+Test::Exception and Test::Differences all use Test::Builder.
+
+=head1 SEE ALSO
+
+Test::Simple, Test::More, Test::Harness
+
+=head1 AUTHORS
+
+Original code by chromatic, maintained by Michael G Schwern
+E<lt>schwern@pobox.comE<gt>
+
+=head1 COPYRIGHT
+
+Copyright 2002, 2004 by chromatic E<lt>chromatic@wgz.orgE<gt> and
+ Michael G Schwern E<lt>schwern@pobox.comE<gt>.
+
+This program is free software; you can redistribute it and/or
+modify it under the same terms as Perl itself.
+
+See F<http://www.perl.com/perl/misc/Artistic.html>
+
+=cut
+
+1;
projects / dh-make-perl / blobdiff