package Test::Builder;
+# $Id: /mirror/googlecode/test-more-trunk/lib/Test/Builder.pm 67223 2008-10-15T03:08:18.888155Z schwern $
-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 = '0.71';
-$VERSION = eval $VERSION; # make the alpha version come out as a number
+use warnings;
+
+our $VERSION = '0.82';
+$VERSION = eval $VERSION; ## no critic (BuiltinFunctions::ProhibitStringyEval)
# Make Test::Builder thread-safe for ithreads.
BEGIN {
use Config;
# 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'}) {
+ if( $] >= 5.008001 && $Config{useithreads} && $INC{'threads.pm'} ) {
require threads::shared;
- # Hack around YET ANOTHER threads::shared bug. It would
+ # 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 $data;
if( $type eq 'HASH' ) {
- %$data = %{$_[0]};
+ %$data = %{ $_[0] };
}
elsif( $type eq 'ARRAY' ) {
- @$data = @{$_[0]};
+ @$data = @{ $_[0] };
}
elsif( $type eq 'SCALAR' ) {
- $$data = ${$_[0]};
+ $$data = ${ $_[0] };
}
else {
- die("Unknown type: ".$type);
+ die( "Unknown type: " . $type );
}
- $_[0] = &threads::shared::share($_[0]);
+ $_[0] = &threads::shared::share( $_[0] );
if( $type eq 'HASH' ) {
- %{$_[0]} = %$data;
+ %{ $_[0] } = %$data;
}
elsif( $type eq 'ARRAY' ) {
- @{$_[0]} = @$data;
+ @{ $_[0] } = @$data;
}
elsif( $type eq 'SCALAR' ) {
- ${$_[0]} = $$data;
+ ${ $_[0] } = $$data;
}
else {
- die("Unknown type: ".$type);
+ die( "Unknown type: " . $type );
}
return $_[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);
+ use base 'Test::Builder::Module';
- 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');
- }
+ my $CLASS = __PACKAGE__;
sub ok {
my($test, $name) = @_;
+ my $tb = $CLASS->builder;
- $Test->ok($test, $name);
+ $tb->ok($test, $name);
}
=cut
my $Test = Test::Builder->new;
+
sub new {
my($class) = shift;
$Test ||= $class->create;
return $Test;
}
-
=item B<create>
my $Test = Test::Builder->create;
=cut
-use vars qw($Level);
+our $Level;
-sub reset {
- my ($self) = @_;
+sub reset { ## no critic (Subroutines::ProhibitBuiltinHomonyms)
+ 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([]);
+ 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->{Skip_All} = 0;
+
+ $self->{Use_Nums} = 1;
- $self->{Use_Nums} = 1;
+ $self->{No_Header} = 0;
+ $self->{No_Ending} = 0;
- $self->{No_Header} = 0;
- $self->{No_Ending} = 0;
+ $self->{Todo} = undef;
+ $self->{Todo_Stack} = [];
+ $self->{Start_Todo} = 0;
- $self->_dup_stdhandles unless $^C;
+ $self->_dup_stdhandles;
- 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 ) {
- $self->{Exported_To} = $pack;
- }
- return $self->{Exported_To};
-}
-
=item B<plan>
$Test->plan('no_plan');
=cut
sub plan {
- my($self, $cmd, $arg) = @_;
+ my( $self, $cmd, $arg ) = @_;
return unless $cmd;
local $Level = $Level + 1;
- if( $self->{Have_Plan} ) {
- $self->croak("You tried to plan twice");
- }
+ $self->croak("You tried to plan twice")
+ if $self->{Have_Plan};
if( $cmd eq 'no_plan' ) {
+ $self->carp("no_plan takes no arguments") if $arg;
$self->no_plan;
}
elsif( $cmd eq 'skip_all' ) {
return $self->skip_all($arg);
}
elsif( $cmd eq 'tests' ) {
- if( $arg ) {
+ if($arg) {
local $Level = $Level + 1;
return $self->expected_tests($arg);
}
elsif( !defined $arg ) {
$self->croak("Got an undefined number of tests");
}
- elsif( !$arg ) {
+ else {
$self->croak("You said to run 0 tests");
}
}
else {
- my @args = grep { defined } ($cmd, $arg);
+ my @args = grep { defined } ( $cmd, $arg );
$self->croak("plan() doesn't understand @args");
}
my $self = shift;
my($max) = @_;
- if( @_ ) {
+ if(@_) {
$self->croak("Number of tests must be a positive integer. You gave it '$max'")
- unless $max =~ /^\+?\d+$/ and $max > 0;
+ unless $max =~ /^\+?\d+$/;
$self->{Expected_Tests} = $max;
$self->{Have_Plan} = 1;
return $self->{Expected_Tests};
}
-
=item B<no_plan>
$Test->no_plan;
$self->{No_Plan} = 1;
$self->{Have_Plan} = 1;
+
+ return 1;
}
=item B<has_plan>
sub has_plan {
my $self = shift;
- return($self->{Expected_Tests}) if $self->{Expected_Tests};
+ return( $self->{Expected_Tests} ) if $self->{Expected_Tests};
return('no_plan') if $self->{No_Plan};
return(undef);
-};
-
+}
=item B<skip_all>
=cut
sub skip_all {
- my($self, $reason) = @_;
+ my( $self, $reason ) = @_;
my $out = "1..0";
$out .= " # Skip $reason" if $reason;
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
=cut
sub ok {
- my($self, $test, $name) = @_;
+ my( $self, $test, $name ) = @_;
# $test might contain an object which we don't want to accidentally
# store, so we turn it into a boolean.
$self->{Curr_Test}++;
# In case $name is a string overloaded object, force it to stringify.
- $self->_unoverload_str(\$name);
+ $self->_unoverload_str( \$name );
- $self->diag(<<ERR) if defined $name and $name =~ /^[\d\s]+$/;
+ $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;
+ # Capture the value of $TODO for the rest of this ok() call
+ # so it can more easily be found by other routines.
+ my $todo = $self->todo();
+ my $in_todo = $self->in_todo;
+ local $self->{Todo} = $todo if $in_todo;
- my $todo = $self->todo($pack);
- $self->_unoverload_str(\$todo);
+ $self->_unoverload_str( \$todo );
my $out;
- my $result = &share({});
+ my $result = &share( {} );
- unless( $test ) {
+ unless($test) {
$out .= "not ";
- @$result{ 'ok', 'actual_ok' } = ( ( $todo ? 1 : 0 ), 0 );
+ @$result{ 'ok', 'actual_ok' } = ( ( $self->in_todo ? 1 : 0 ), 0 );
}
else {
@$result{ 'ok', 'actual_ok' } = ( 1, $test );
$out .= " $self->{Curr_Test}" if $self->use_numbers;
if( defined $name ) {
- $name =~ s|#|\\#|g; # # in a name can confuse Test::Harness.
- $out .= " - $name";
+ $name =~ s|#|\\#|g; # # in a name can confuse Test::Harness.
+ $out .= " - $name";
$result->{name} = $name;
}
else {
$result->{name} = '';
}
- if( $todo ) {
- $out .= " # TODO $todo";
+ if( $self->in_todo ) {
+ $out .= " # TODO $todo";
$result->{reason} = $todo;
$result->{type} = 'todo';
}
$result->{type} = '';
}
- $self->{Test_Results}[$self->{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};
+ unless($test) {
+ my $msg = $self->in_todo ? "Failed (TODO)" : "Failed";
+ $self->_print_to_fh( $self->_diag_fh, "\n" ) if $ENV{HARNESS_ACTIVE};
- 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]);
- }
- }
+ 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;
+ my $self = shift;
+ my $type = shift;
- $self->_try(sub { require overload } ) || return;
+ $self->_try( sub { require overload } ) || return;
foreach my $thing (@_) {
if( $self->_is_object($$thing) ) {
- if( my $string_meth = overload::Method($$thing, $type) ) {
+ if( my $string_meth = overload::Method( $$thing, $type ) ) {
$$thing = $$thing->$string_meth();
}
}
}
-}
+ return;
+}
sub _is_object {
- my($self, $thing) = @_;
+ my( $self, $thing ) = @_;
- return $self->_try(sub { ref $thing && $thing->isa('UNIVERSAL') }) ? 1 : 0;
+ return $self->_try( sub { ref $thing && $thing->isa('UNIVERSAL') } ) ? 1 : 0;
}
-
sub _unoverload_str {
my $self = shift;
- $self->_unoverload(q[""], @_);
-}
+ return $self->_unoverload( q[""], @_ );
+}
sub _unoverload_num {
my $self = shift;
- $self->_unoverload('0+', @_);
+ $self->_unoverload( '0+', @_ );
for my $val (@_) {
next unless $self->_is_dualvar($$val);
- $$val = $$val+0;
+ $$val = $$val + 0;
}
-}
+ return;
+}
# This is a hack to detect a dualvar such as $!
sub _is_dualvar {
- my($self, $val) = @_;
+ my( $self, $val ) = @_;
- local $^W = 0;
- my $numval = $val+0;
- return 1 if $numval != 0 and $numval ne $val;
+ no warnings 'numeric';
+ my $numval = $val + 0;
+ return $numval != 0 and $numval ne $val ? 1 : 0;
}
-
-
=item B<is_eq>
$Test->is_eq($got, $expected, $name);
=cut
sub is_eq {
- my($self, $got, $expect, $name) = @_;
+ my( $self, $got, $expect, $name ) = @_;
local $Level = $Level + 1;
- $self->_unoverload_str(\$got, \$expect);
+ $self->_unoverload_str( \$got, \$expect );
if( !defined $got || !defined $expect ) {
# undef only matches undef and nothing else
my $test = !defined $got && !defined $expect;
- $self->ok($test, $name);
- $self->_is_diag($got, 'eq', $expect) unless $test;
+ $self->ok( $test, $name );
+ $self->_is_diag( $got, 'eq', $expect ) unless $test;
return $test;
}
- return $self->cmp_ok($got, 'eq', $expect, $name);
+ return $self->cmp_ok( $got, 'eq', $expect, $name );
}
sub is_num {
- my($self, $got, $expect, $name) = @_;
+ my( $self, $got, $expect, $name ) = @_;
local $Level = $Level + 1;
- $self->_unoverload_num(\$got, \$expect);
+ $self->_unoverload_num( \$got, \$expect );
if( !defined $got || !defined $expect ) {
# undef only matches undef and nothing else
my $test = !defined $got && !defined $expect;
- $self->ok($test, $name);
- $self->_is_diag($got, '==', $expect) unless $test;
+ $self->ok( $test, $name );
+ $self->_is_diag( $got, '==', $expect ) unless $test;
return $test;
}
- return $self->cmp_ok($got, '==', $expect, $name);
+ return $self->cmp_ok( $got, '==', $expect, $name );
}
-sub _is_diag {
- my($self, $got, $type, $expect) = @_;
+sub _diag_fmt {
+ my( $self, $type, $val ) = @_;
- foreach my $val (\$got, \$expect) {
- if( defined $$val ) {
- if( $type eq 'eq' ) {
- # quote and force string context
- $$val = "'$$val'"
- }
- else {
- # force numeric context
- $self->_unoverload_num($val);
- }
+ if( defined $$val ) {
+ if( $type eq 'eq' or $type eq 'ne' ) {
+ # quote and force string context
+ $$val = "'$$val'";
}
else {
- $$val = 'undef';
+ # force numeric context
+ $self->_unoverload_num($val);
}
}
+ else {
+ $$val = 'undef';
+ }
+
+ return;
+}
+
+sub _is_diag {
+ my( $self, $got, $type, $expect ) = @_;
- return $self->diag(sprintf <<DIAGNOSTIC, $got, $expect);
- got: %s
- expected: %s
+ $self->_diag_fmt( $type, $_ ) for \$got, \$expect;
+
+ local $Level = $Level + 1;
+ return $self->diag(<<"DIAGNOSTIC");
+ got: $got
+ expected: $expect
DIAGNOSTIC
-}
+}
+
+sub _isnt_diag {
+ my( $self, $got, $type ) = @_;
+
+ $self->_diag_fmt( $type, \$got );
+
+ local $Level = $Level + 1;
+ return $self->diag(<<"DIAGNOSTIC");
+ got: $got
+ expected: anything else
+DIAGNOSTIC
+}
=item B<isnt_eq>
=cut
sub isnt_eq {
- my($self, $got, $dont_expect, $name) = @_;
+ 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;
+ $self->ok( $test, $name );
+ $self->_isnt_diag( $got, 'ne' ) unless $test;
return $test;
}
- return $self->cmp_ok($got, 'ne', $dont_expect, $name);
+ return $self->cmp_ok( $got, 'ne', $dont_expect, $name );
}
sub isnt_num {
- my($self, $got, $dont_expect, $name) = @_;
+ 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;
+ $self->ok( $test, $name );
+ $self->_isnt_diag( $got, '!=' ) unless $test;
return $test;
}
- return $self->cmp_ok($got, '!=', $dont_expect, $name);
+ return $self->cmp_ok( $got, '!=', $dont_expect, $name );
}
-
=item B<like>
$Test->like($this, qr/$regex/, $name);
=cut
sub like {
- my($self, $this, $regex, $name) = @_;
+ my( $self, $this, $regex, $name ) = @_;
local $Level = $Level + 1;
- $self->_regex_ok($this, $regex, '=~', $name);
+ return $self->_regex_ok( $this, $regex, '=~', $name );
}
sub unlike {
- my($self, $this, $regex, $name) = @_;
+ my( $self, $this, $regex, $name ) = @_;
local $Level = $Level + 1;
- $self->_regex_ok($this, $regex, '!~', $name);
+ return $self->_regex_ok( $this, $regex, '!~', $name );
}
-
=item B<cmp_ok>
$Test->cmp_ok($this, $type, $that, $name);
=cut
-
-my %numeric_cmps = map { ($_, 1) }
- ("<", "<=", ">", ">=", "==", "!=", "<=>");
+my %numeric_cmps = map { ( $_, 1 ) } ( "<", "<=", ">", ">=", "==", "!=", "<=>" );
sub cmp_ok {
- my($self, $got, $type, $expect, $name) = @_;
+ my( $self, $got, $type, $expect, $name ) = @_;
# Treat overloaded objects as numbers if we're asked to do a
# numeric comparison.
- my $unoverload = $numeric_cmps{$type} ? '_unoverload_num'
- : '_unoverload_str';
-
- $self->$unoverload(\$got, \$expect);
+ my $unoverload
+ = $numeric_cmps{$type}
+ ? '_unoverload_num'
+ : '_unoverload_str';
+ $self->$unoverload( \$got, \$expect );
my $test;
{
- local($@,$!,$SIG{__DIE__}); # isolate eval
+ ## no critic (BuiltinFunctions::ProhibitStringyEval)
+
+ local( $@, $!, $SIG{__DIE__} ); # isolate eval
my $code = $self->_caller_context;
- # Yes, it has to look like this or 5.4.5 won't see the #line directive.
+ # 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;";
}
local $Level = $Level + 1;
- my $ok = $self->ok($test, $name);
+ my $ok = $self->ok( $test, $name );
- unless( $ok ) {
+ unless($ok) {
if( $type =~ /^(eq|==)$/ ) {
- $self->_is_diag($got, $type, $expect);
+ $self->_is_diag( $got, $type, $expect );
+ }
+ elsif( $type =~ /^(ne|!=)$/ ) {
+ $self->_isnt_diag( $got, $type );
}
else {
- $self->_cmp_diag($got, $type, $expect);
+ $self->_cmp_diag( $got, $type, $expect );
}
}
return $ok;
}
sub _cmp_diag {
- my($self, $got, $type, $expect) = @_;
-
+ 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
+
+ local $Level = $Level + 1;
+ return $self->diag(<<"DIAGNOSTIC");
+ $got
+ $type
+ $expect
DIAGNOSTIC
}
-
sub _caller_context {
my $self = shift;
- my($pack, $file, $line) = $self->caller(1);
+ my( $pack, $file, $line ) = $self->caller(1);
my $code = '';
$code .= "#line $line $file\n" if defined $file and defined $line;
=cut
sub BAIL_OUT {
- my($self, $reason) = @_;
+ my( $self, $reason ) = @_;
$self->{Bailed_Out} = 1;
$self->_print("Bail out! $reason");
*BAILOUT = \&BAIL_OUT;
-
=item B<skip>
$Test->skip;
=cut
sub skip {
- my($self, $why) = @_;
+ my( $self, $why ) = @_;
$why ||= '';
- $self->_unoverload_str(\$why);
+ $self->_unoverload_str( \$why );
$self->_plan_check;
- lock($self->{Curr_Test});
+ 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,
- });
+ $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";
+ $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>
$Test->todo_skip;
=cut
sub todo_skip {
- my($self, $why) = @_;
+ my( $self, $why ) = @_;
$why ||= '';
$self->_plan_check;
- lock($self->{Curr_Test});
+ 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,
- });
+ $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";
+ $out .= " $self->{Curr_Test}" if $self->use_numbers;
+ $out .= " # TODO & SKIP $why\n";
$self->_print($out);
return 1;
}
-
=begin _unimplemented
=item B<skip_rest>
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.
+regular expression, or undef if its argument is not recognised.
For example, a version of like(), sans the useful diagnostic messages,
could be written as:
=cut
-
sub maybe_regex {
- my ($self, $regex) = @_;
+ my( $self, $regex ) = @_;
my $usable_regex = undef;
return $usable_regex unless defined $regex;
- my($re, $opts);
+ my( $re, $opts );
# Check for qr/foo/
- if( ref $regex eq 'Regexp' ) {
+ if( _is_qr($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
- )
+ 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( $self, $this, $regex, $cmp, $name ) = @_;
- my $ok = 0;
+ my $ok = 0;
my $usable_regex = $self->maybe_regex($regex);
- unless (defined $usable_regex) {
+ unless( defined $usable_regex ) {
+ local $Level = $Level + 1;
$ok = $self->ok( 0, $name );
$self->diag(" '$regex' doesn't look much like a regex to me.");
return $ok;
}
{
+ ## no critic (BuiltinFunctions::ProhibitStringyEval)
+
my $test;
my $code = $self->_caller_context;
- local($@, $!, $SIG{__DIE__}); # isolate eval
+ local( $@, $!, $SIG{__DIE__} ); # isolate eval
- # Yes, it has to look like this or 5.4.5 won't see the #line directive.
+ # 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};
$ok = $self->ok( $test, $name );
}
- unless( $ok ) {
+ unless($ok) {
$this = defined $this ? "'$this'" : 'undef';
my $match = $cmp eq '=~' ? "doesn't match" : "matches";
- $self->diag(sprintf <<DIAGNOSTIC, $this, $match, $regex);
+
+ 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.
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.
+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 $@.
=cut
sub _try {
- my($self, $code) = @_;
-
+ 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;
+
+ return wantarray ? ( $return, $@ ) : $return;
}
=end private
=cut
sub is_fh {
- my $self = shift;
+ 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 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') };
+ eval { ( tied($maybe_fh) || '' )->can('TIEHANDLE') };
}
-
=back
=cut
sub level {
- my($self, $level) = @_;
+ my( $self, $level ) = @_;
if( defined $level ) {
$Level = $level;
return $Level;
}
-
=item B<use_numbers>
$Test->use_numbers($on_or_off);
=cut
sub use_numbers {
- my($self, $use_nums) = @_;
+ my( $self, $use_nums ) = @_;
if( defined $use_nums ) {
$self->{Use_Nums} = $use_nums;
return $self->{Use_Nums};
}
-
=item B<no_diag>
$Test->no_diag($no_diag);
my $method = lc $attribute;
my $code = sub {
- my($self, $no) = @_;
+ my( $self, $no ) = @_;
if( defined $no ) {
$self->{$attribute} = $no;
return $self->{$attribute};
};
- no strict 'refs';
- *{__PACKAGE__.'::'.$method} = $code;
+ no strict 'refs'; ## no critic
+ *{ __PACKAGE__ . '::' . $method } = $code;
}
-
=back
=head2 Output
=cut
sub diag {
- my($self, @msgs) = @_;
+ my $self = shift;
+
+ $self->_print_comment( $self->_diag_fh, @_ );
+}
+
+=item B<note>
+
+ $Test->note(@msgs);
+
+Like diag(), but it prints to the C<output()> handle so it will not
+normally be seen by the user except in verbose mode.
+
+=cut
+
+sub note {
+ my $self = shift;
+
+ $self->_print_comment( $self->output, @_ );
+}
+
+sub _diag_fh {
+ my $self = shift;
+
+ local $Level = $Level + 1;
+ return $self->in_todo ? $self->todo_output : $self->failure_output;
+}
+
+sub _print_comment {
+ my( $self, $fh, @msgs ) = @_;
return if $self->no_diag;
return unless @msgs;
# 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/;
+ # Escape the beginning, _print will take care of the rest.
+ $msg =~ s/^/# /;
local $Level = $Level + 1;
- $self->_print_diag($msg);
+ $self->_print_to_fh( $fh, $msg );
return 0;
}
+=item B<explain>
+
+ my @dump = $Test->explain(@msgs);
+
+Will dump the contents of any references in a human readable format.
+Handy for things like...
+
+ is_deeply($have, $want) || diag explain $have;
+
+or
+
+ is_deeply($have, $want) || note explain $have;
+
+=cut
+
+sub explain {
+ my $self = shift;
+
+ return map {
+ ref $_
+ ? do {
+ require Data::Dumper;
+
+ my $dumper = Data::Dumper->new( [$_] );
+ $dumper->Indent(1)->Terse(1);
+ $dumper->Sortkeys(1) if $dumper->can("Sortkeys");
+ $dumper->Dump;
+ }
+ : $_
+ } @_;
+}
+
=begin _private
=item B<_print>
=cut
sub _print {
- my($self, @msgs) = @_;
+ my $self = shift;
+ return $self->_print_to_fh( $self->output, @_ );
+}
+
+sub _print_to_fh {
+ my( $self, $fh, @msgs ) = @_;
# Prevent printing headers when only compiling. Mostly for when
# tests are deparsed with B::Deparse
my $msg = join '', @msgs;
- local($\, $", $,) = (undef, ' ', '');
- my $fh = $self->output;
+ local( $\, $", $, ) = ( undef, ' ', '' );
# Escape each line after the first with a # so we don't
# confuse Test::Harness.
# Stick a newline on the end if it needs it.
$msg .= "\n" unless $msg =~ /\n\Z/;
- print $fh $msg;
+ return print $fh $msg;
}
-=begin private
-
-=item B<_print_diag>
-
- $Test->_print_diag(@msg);
-
-Like _print, but prints to the current diagnostic filehandle.
-
-=end private
-
-=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);
=cut
sub output {
- my($self, $fh) = @_;
+ my( $self, $fh ) = @_;
if( defined $fh ) {
$self->{Out_FH} = $self->_new_fh($fh);
}
sub failure_output {
- my($self, $fh) = @_;
+ my( $self, $fh ) = @_;
if( defined $fh ) {
$self->{Fail_FH} = $self->_new_fh($fh);
}
sub todo_output {
- my($self, $fh) = @_;
+ my( $self, $fh ) = @_;
if( defined $fh ) {
$self->{Todo_FH} = $self->_new_fh($fh);
return $self->{Todo_FH};
}
-
sub _new_fh {
my $self = shift;
my($file_or_fh) = shift;
$fh = $file_or_fh;
}
else {
- $fh = do { local *FH };
- open $fh, ">$file_or_fh" or
- $self->croak("Can't open test output log $file_or_fh: $!");
- _autoflush($fh);
+ open $fh, ">", $file_or_fh
+ or $self->croak("Can't open test output log $file_or_fh: $!");
+ _autoflush($fh);
}
return $fh;
}
-
sub _autoflush {
my($fh) = shift;
my $old_fh = select $fh;
$| = 1;
select $old_fh;
+
+ return;
}
+my( $Testout, $Testerr );
sub _dup_stdhandles {
my $self = shift;
# Set everything to unbuffered else plain prints to STDOUT will
# come out in the wrong order from our own prints.
- _autoflush(\*TESTOUT);
- _autoflush(\*STDOUT);
- _autoflush(\*TESTERR);
- _autoflush(\*STDERR);
+ _autoflush($Testout);
+ _autoflush( \*STDOUT );
+ _autoflush($Testerr);
+ _autoflush( \*STDERR );
- $self->output(\*TESTOUT);
- $self->failure_output(\*TESTERR);
- $self->todo_output(\*TESTOUT);
-}
+ $self->reset_outputs;
+ return;
+}
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;
+
+ return;
+}
+
+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;
+ }
+ );
+
+ return;
}
+=item reset_outputs
+
+ $tb->reset_outputs;
+
+Resets all the output filehandles back to their defaults.
+
+=cut
+
+sub reset_outputs {
+ my $self = shift;
+
+ $self->output ($Testout);
+ $self->failure_output($Testerr);
+ $self->todo_output ($Testout);
+
+ return;
+}
=item carp
my $self = shift;
local $Level = $Level + 1;
- my($pack, $file, $line) = $self->caller;
- return join("", @_) . " at $file line $line.\n";
+ my( $pack, $file, $line ) = $self->caller;
+ return join( "", @_ ) . " at $file line $line.\n";
}
sub carp {
my $self = shift;
- warn $self->_message_at_caller(@_);
+ return warn $self->_message_at_caller(@_);
}
sub croak {
my $self = shift;
- die $self->_message_at_caller(@_);
+ return die $self->_message_at_caller(@_);
}
sub _plan_check {
local $Level = $Level + 2;
$self->croak("You tried to run a test without a plan");
}
+
+ return;
}
=back
=cut
sub current_test {
- my($self, $num) = @_;
+ my( $self, $num ) = @_;
- lock($self->{Curr_Test});
+ lock( $self->{Curr_Test} );
if( defined $num ) {
- unless( $self->{Have_Plan} ) {
- $self->croak("Can't change the current test number without a plan!");
- }
+ $self->croak("Can't change the current test number without a plan!")
+ unless $self->{Have_Plan};
$self->{Curr_Test} = $num;
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
- });
+ 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.
return $self->{Curr_Test};
}
-
=item B<summary>
my @tests = $Test->summary;
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.
+its type is 'unknown'. 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
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.
+If the current tests are considered "TODO" it will return the reason,
+if any. This reason can come from a $TODO variable or the last call
+to C<<todo_start()>>.
+
+Since a TODO test does not need a reason, this function can return an
+empty string even when inside a TODO block. Use C<<$Test->in_todo>>
+to determine if you are currently inside a TODO block.
-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.
+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 $TODO variable. If you want to be sure, tell it explicitly
=cut
sub todo {
- my($self, $pack) = @_;
+ my( $self, $pack ) = @_;
+
+ return $self->{Todo} if defined $self->{Todo};
+
+ local $Level = $Level + 1;
+ my $todo = $self->find_TODO($pack);
+ return $todo if defined $todo;
+
+ return '';
+}
+
+=item B<find_TODO>
+
+ my $todo_reason = $Test->find_TODO();
+ my $todo_reason = $Test->find_TODO($pack):
+
+Like C<<todo()>> but only returns the value of C<<$TODO>> ignoring
+C<<todo_start()>>.
+
+=cut
+
+sub find_TODO {
+ my( $self, $pack ) = @_;
+
+ $pack = $pack || $self->caller(1) || $self->exported_to;
+ return unless $pack;
+
+ no strict 'refs'; ## no critic
+ return ${ $pack . '::TODO' };
+}
+
+=item B<in_todo>
+
+ my $in_todo = $Test->in_todo;
+
+Returns true if the test is currently inside a TODO block.
+
+=cut
+
+sub in_todo {
+ my $self = shift;
+
+ local $Level = $Level + 1;
+ return( defined $self->{Todo} || $self->find_TODO ) ? 1 : 0;
+}
+
+=item B<todo_start>
+
+ $Test->todo_start();
+ $Test->todo_start($message);
+
+This method allows you declare all subsequent tests as TODO tests, up until
+the C<todo_end> method has been called.
+
+The C<TODO:> and C<$TODO> syntax is generally pretty good about figuring out
+whether or not we're in a TODO test. However, often we find that this is not
+possible to determine (such as when we want to use C<$TODO> but
+the tests are being executed in other packages which can't be inferred
+beforehand).
+
+Note that you can use this to nest "todo" tests
+
+ $Test->todo_start('working on this');
+ # lots of code
+ $Test->todo_start('working on that');
+ # more code
+ $Test->todo_end;
+ $Test->todo_end;
+
+This is generally not recommended, but large testing systems often have weird
+internal needs.
+
+We've tried to make this also work with the TODO: syntax, but it's not
+guaranteed and its use is also discouraged:
+
+ TODO: {
+ local $TODO = 'We have work to do!';
+ $Test->todo_start('working on this');
+ # lots of code
+ $Test->todo_start('working on that');
+ # more code
+ $Test->todo_end;
+ $Test->todo_end;
+ }
+
+Pick one style or another of "TODO" to be on the safe side.
+
+=cut
+
+sub todo_start {
+ my $self = shift;
+ my $message = @_ ? shift : '';
- $pack = $pack || $self->exported_to || $self->caller($Level);
- return 0 unless $pack;
+ $self->{Start_Todo}++;
+ if( $self->in_todo ) {
+ push @{ $self->{Todo_Stack} } => $self->todo;
+ }
+ $self->{Todo} = $message;
+
+ return;
+}
+
+=item C<todo_end>
+
+ $Test->todo_end;
+
+Stops running tests as "TODO" tests. This method is fatal if called without a
+preceding C<todo_start> method call.
+
+=cut
+
+sub todo_end {
+ my $self = shift;
+
+ if( !$self->{Start_Todo} ) {
+ $self->croak('todo_end() called without todo_start()');
+ }
+
+ $self->{Start_Todo}--;
+
+ if( $self->{Start_Todo} && @{ $self->{Todo_Stack} } ) {
+ $self->{Todo} = pop @{ $self->{Todo_Stack} };
+ }
+ else {
+ delete $self->{Todo};
+ }
- no strict 'refs';
- return defined ${$pack.'::TODO'} ? ${$pack.'::TODO'}
- : 0;
+ return;
}
=item B<caller>
Like the normal caller(), except it reports according to your level().
+C<$height> will be added to the level().
+
=cut
-sub caller {
- my($self, $height) = @_;
+sub caller { ## no critic (Subroutines::ProhibitBuiltinHomonyms)
+ my( $self, $height ) = @_;
$height ||= 0;
- my @caller = CORE::caller($self->level + $height + 1);
+ my @caller = CORE::caller( $self->level + $height + 1 );
return wantarray ? @caller : $caller[0];
}
sub _sanity_check {
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!');
- $self->_whoa($self->{Curr_Test} != @{ $self->{Test_Results} },
- 'Somehow you got a different number of results than tests ran!');
+ $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!' );
+ $self->_whoa( $self->{Curr_Test} != @{ $self->{Test_Results} },
+ 'Somehow you got a different number of results than tests ran!' );
+
+ return;
}
=item B<_whoa>
=cut
sub _whoa {
- my($self, $check, $desc) = @_;
- if( $check ) {
+ my( $self, $check, $desc ) = @_;
+ if($check) {
local $Level = $Level + 1;
$self->croak(<<"WHOA");
WHOA! $desc
This should never happen! Please contact the author immediately!
WHOA
}
+
+ return;
}
=item B<_my_exit>
=cut
sub _my_exit {
- $? = $_[0];
+ $? = $_[0]; ## no critic (Variables::RequireLocalizedPunctuationVars)
return 1;
}
-
=back
=end _private
=cut
-$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;
+ 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.
- # Exit if plan() was never called. This is so "require Test::Simple"
+ if( $self->{Original_Pid} != $$ ) {
+ return;
+ }
+
+ # Exit if plan() was never called. This is so "require Test::Simple"
# doesn't puke.
+ if( !$self->{Have_Plan} ) {
+ return;
+ }
+
# Don't do an ending if we bailed out.
- if( ($self->{Original_Pid} != $$) or
- (!$self->{Have_Plan} && !$self->{Test_Died}) or
- $self->{Bailed_Out}
- )
- {
- _my_exit($?);
- return;
+ if( $self->{Bailed_Out} ) {
+ return;
}
# Figure out if we passed or failed and print helpful messages.
my $test_results = $self->{Test_Results};
- if( @$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;
# 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 ) {
+ 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->{Curr_Test}-1];
+ my $num_failed = grep !$_->{'ok'}, @{$test_results}[ 0 .. $self->{Curr_Test} - 1 ];
my $num_extra = $self->{Curr_Test} - $self->{Expected_Tests};
- if( $num_extra < 0 ) {
- 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( $num_extra > 0 ) {
+ if( $num_extra != 0 ) {
my $s = $self->{Expected_Tests} == 1 ? '' : 's';
$self->diag(<<"FAIL");
-Looks like you planned $self->{Expected_Tests} test$s but ran $num_extra extra.
+Looks like you planned $self->{Expected_Tests} test$s but ran $self->{Curr_Test}.
FAIL
}
- if ( $num_failed ) {
+ if($num_failed) {
my $num_tests = $self->{Curr_Test};
my $s = $num_failed == 1 ? '' : 's';
FAIL
}
- if( $self->{Test_Died} ) {
+ if($real_exit_code) {
$self->diag(<<"FAIL");
-Looks like your test died just after $self->{Curr_Test}.
+Looks like your test exited with $real_exit_code just after $self->{Curr_Test}.
FAIL
- _my_exit( 255 ) && return;
+ _my_exit($real_exit_code) && return;
}
my $exit_code;
- if( $num_failed ) {
+ if($num_failed) {
$exit_code = $num_failed <= 254 ? $num_failed : 254;
}
elsif( $num_extra != 0 ) {
$exit_code = 0;
}
- _my_exit( $exit_code ) && return;
+ _my_exit($exit_code) && return;
}
- elsif ( $self->{Skip_All} ) {
- _my_exit( 0 ) && return;
+ elsif( $self->{Skip_All} ) {
+ _my_exit(0) && return;
}
- elsif ( $self->{Test_Died} ) {
- $self->diag(<<'FAIL');
-Looks like your test died before it could output anything.
+ elsif($real_exit_code) {
+ $self->diag(<<"FAIL");
+Looks like your test exited with $real_exit_code before it could output anything.
FAIL
- _my_exit( 255 ) && return;
+ _my_exit($real_exit_code) && return;
}
else {
$self->diag("No tests run!\n");
- _my_exit( 255 ) && return;
+ _my_exit(255) && return;
}
+
+ $self->_whoa( 1, "We fell off the end of _ending()" );
}
END {
=head1 COPYRIGHT
-Copyright 2002, 2004 by chromatic E<lt>chromatic@wgz.orgE<gt> and
- Michael G Schwern E<lt>schwern@pobox.comE<gt>.
+Copyright 2002-2008 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.
=cut
1;
+
projects / p5sagit/p5-mst-13.2.git / blobdiff