$^C ||= 0;
use strict;
-use vars qw($VERSION $CLASS);
-$VERSION = 0.05;
-$CLASS = __PACKAGE__;
-
-my $IsVMS = $^O eq 'VMS';
-
-use vars qw($Level);
-my @Test_Results = ();
-my @Test_Details = ();
-my($Test_Died) = 0;
-my($Have_Plan) = 0;
-my $Curr_Test = 0;
+use vars qw($VERSION);
+$VERSION = '0.72';
+$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.
+ # 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
+ # 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
+ # and earlier Perls just don't have that module at all.
+ else {
+ *share = sub { return $_[0] };
+ *lock = sub { 0 };
+ }
+}
=head1 NAME
=head1 DESCRIPTION
-I<THIS IS ALPHA GRADE SOFTWARE> The interface will change.
-
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.
+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
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;
+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>
+
+ $Test->reset;
+
+Reinitializes the Test::Builder singleton to its original state.
+Mostly useful for tests run in persistent environments where the same
+test might be run multiple times in the same process.
+
+=cut
+
+use vars qw($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
=cut
-my $Exported_To;
sub exported_to {
my($self, $pack) = @_;
if( defined $pack ) {
- $Exported_To = $pack;
+ $self->{Exported_To} = $pack;
}
- return $Exported_To;
+ return $self->{Exported_To};
}
=item B<plan>
return unless $cmd;
+ local $Level = $Level + 1;
+
+ if( $self->{Have_Plan} ) {
+ $self->croak("You tried to plan twice");
+ }
+
if( $cmd eq 'no_plan' ) {
$self->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 {
+ my @args = grep { defined } ($cmd, $arg);
+ $self->croak("plan() doesn't understand @args");
+ }
+
+ return 1;
}
=item B<expected_tests>
=cut
-my $Expected_Tests = 0;
sub expected_tests {
- my($self, $max) = @_;
+ my $self = shift;
+ my($max) = @_;
+
+ if( @_ ) {
+ $self->croak("Number of tests must be a positive integer. You gave it '$max'")
+ unless $max =~ /^\+?\d+$/ and $max > 0;
- if( defined $max ) {
- $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
-my($No_Plan) = 0;
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 {
+ 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;
=cut
-my $Skip_All = 0;
sub skip_all {
my($self, $reason) = @_;
$out .= " # Skip $reason" if $reason;
$out .= "\n";
- $Skip_All = 1;
+ $self->{Skip_All} = 1;
$self->_print($out) unless $self->no_header;
exit(0);
=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.
sub ok {
my($self, $test, $name) = @_;
- unless( $Have_Plan ) {
- die "You tried to run a test without a plan! Gotta have a plan.\n";
- }
+ # $test might contain an object which we don't want to accidentally
+ # store, so we turn it into a boolean.
+ $test = $test ? 1 : 0;
+
+ $self->_plan_check;
+
+ lock $self->{Curr_Test};
+ $self->{Curr_Test}++;
+
+ # In case $name is a string overloaded object, force it to stringify.
+ $self->_unoverload_str(\$name);
- $Curr_Test++;
-
$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.
+ 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_str(\$todo);
my $out;
+ my $result = &share({});
+
unless( $test ) {
$out .= "not ";
- $Test_Results[$Curr_Test-1] = $todo ? 1 : 0;
+ @$result{ 'ok', 'actual_ok' } = ( ( $todo ? 1 : 0 ), 0 );
}
else {
- $Test_Results[$Curr_Test-1] = 1;
+ @$result{ 'ok', 'actual_ok' } = ( 1, $test );
}
$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.
$out .= " - $name";
+ $result->{name} = $name;
+ }
+ else {
+ $result->{name} = '';
}
if( $todo ) {
- my $what_todo = $todo;
- $out .= " # TODO $what_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->diag("$msg test ($file at line $line)\n");
+ $self->_print_diag("\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]);
+ }
}
return $test ? 1 : 0;
}
+
+sub _unoverload {
+ my $self = shift;
+ my $type = shift;
+
+ $self->_try(sub { require overload } ) || return;
+
+ foreach my $thing (@_) {
+ 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);
=item B<is_num>
- $Test->is_num($get, $expected, $name);
+ $Test->is_num($got, $expected, $name);
Like Test::More's is(). Checks if $got == $expected. This is the
numeric version.
=cut
sub is_eq {
- my $self = shift;
+ my($self, $got, $expect, $name) = @_;
local $Level = $Level + 1;
- return $self->_is('eq', @_);
+
+ $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;
+ return $test;
+ }
+
+ return $self->cmp_ok($got, 'eq', $expect, $name);
}
sub is_num {
- my $self = shift;
+ my($self, $got, $expect, $name) = @_;
local $Level = $Level + 1;
- return $self->_is('==', @_);
+
+ $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;
+ return $test;
+ }
+
+ return $self->cmp_ok($got, '==', $expect, $name);
}
-sub _is {
- my($self, $type, $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 = "'$$val'"
+ }
+ else {
+ # force numeric context
+ $self->_unoverload_num($val);
+ }
+ }
+ else {
+ $$val = 'undef';
+ }
+ }
- my $test;
- {
- local $^W = 0; # so we can compare undef quietly
- $test = $type eq 'eq' ? $got eq $expect
- : $got == $expect;
+ 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>
+
+ $Test->isnt_num($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;
- my $ok = $self->ok($test, $name);
- unless( $ok ) {
- $got = defined $got ? "'$got'" : 'undef';
- $expect = defined $expect ? "'$expect'" : 'undef';
- $self->diag(sprintf <<DIAGNOSTIC, $got, $expect);
- got: %s
-expected: %s
-DIAGNOSTIC
- }
+ if( !defined $got || !defined $dont_expect ) {
+ # undef only matches undef and nothing else
+ my $test = defined $got || defined $dont_expect;
- return $ok;
+ $self->ok($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);
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);
+}
- my $ok = 0;
- if( ref $regex eq 'Regexp' ) {
- local $^W = 0;
- $ok = $self->ok( $this =~ $regex ? 1 : 0, $name );
- }
- # Check if it looks like '/foo/'
- elsif( my($re, $opts) = $regex =~ m{^ /(.*)/ (\w*) $ }sx ) {
- local $^W = 0;
- $ok = $self->ok( $this =~ /(?$opts)$re/ ? 1 : 0, $name );
- }
- else {
- $ok = $self->ok( 0, $name );
+sub unlike {
+ my($self, $this, $regex, $name) = @_;
+
+ local $Level = $Level + 1;
+ $self->_regex_ok($this, $regex, '!~', $name);
+}
- $self->diag("'$regex' doesn't look much like a regex to me.");
- 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, '!=', $other_big_num);
+
+=cut
+
+
+my %numeric_cmps = map { ($_, 1) }
+ ("<", "<=", ">", ">=", "==", "!=", "<=>");
+
+sub cmp_ok {
+ 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 $test;
+ {
+ local($@,$!,$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.
+ # 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);
unless( $ok ) {
- $this = defined $this ? "'$this'" : 'undef';
- $self->diag(sprintf <<DIAGNOSTIC, $this);
- %s
-doesn't match '$regex'
+ 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
+}
- }
- return $ok;
+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
+scripts.
+
+It will exit with 255.
+
+=cut
+
+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_str(\$why);
- unless( $Have_Plan ) {
- die "You tried to run tests without a plan! Gotta have a plan.\n";
- }
+ $self->_plan_check;
- $Curr_Test++;
+ lock($self->{Curr_Test});
+ $self->{Curr_Test}++;
- $Test_Results[$Curr_Test-1] = 1;
+ $self->{Test_Results}[$self->{Curr_Test}-1] = &share({
+ 'ok' => 1,
+ actual_ok => 1,
+ name => '',
+ type => 'skip',
+ reason => $why,
+ });
my $out = "ok";
- $out .= " $Curr_Test" if $self->use_numbers;
- $out .= " # skip $why\n";
+ $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;
}
+
+=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 ||= '';
+
+ $self->_plan_check;
+
+ lock($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>
=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( 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) = @_;
+
+ 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";
+ $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 {
return $Level;
}
-$CLASS->level(1);
-
=item B<use_numbers>
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 $Use_Nums = 1;
sub use_numbers {
my($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>
$Test->no_ending($no_ending);
Normally, Test::Builder does some extra diagnostics when the test
-ends. It also changes the exit code as described in Test::Simple.
+ends. It also changes the exit code as described below.
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
-my($No_Header, $No_Ending) = (0,0);
-sub no_header {
- my($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 $No_Ending;
+ no strict 'refs';
+ *{__PACKAGE__.'::'.$method} = $code;
}
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 effected.
+Test::Builder's default output settings will not be affected.
=over 4
$Test->diag(@msgs);
-Prints out the given $message. Normally, it uses the failure_output()
-handle, but if this is for a TODO test, the todo_output() handle is
-used.
+Prints out the given @msgs. Like C<print>, arguments are simply
+appended together.
+
+Normally, it uses the failure_output() handle, but if this is for a
+TODO test, the todo_output() handle is used.
-Output will be indented and marked with a # as not to interfere
-with test output.
+Output will be indented and marked with a # so as not to interfere
+with test output. A newline will be put on the end if there isn't one
+already.
We encourage using this rather than calling print directly.
+Returns false. Why? Because diag() is often used in conjunction with
+a failing test (C<ok() || diag()>) it "passes through" the failure.
+
+ return ok(...) || diag(...);
+
+=for blame transfer
+Mark Fowler <mark@twoshortplanks.com>
+
=cut
sub diag {
my($self, @msgs) = @_;
+ return if $self->no_diag;
+ 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 #.
- foreach (@msgs) {
- s/^([^#])/# $1/;
- s/\n([^#])/\n# $1/g;
- }
+ $msg =~ s/^/# /gm;
+
+ # Stick a newline on the end if it needs it.
+ $msg .= "\n" unless $msg =~ /\n\Z/;
local $Level = $Level + 1;
- my $fh = $self->todo ? $self->todo_output : $self->failure_output;
- local($\, $", $,) = (undef, ' ', '');
- print $fh @msgs;
+ $self->_print_diag($msg);
+
+ return 0;
}
=begin _private
# tests are deparsed with B::Deparse
return if $^C;
+ my $msg = join '', @msgs;
+
local($\, $", $,) = (undef, ' ', '');
my $fh = $self->output;
- print $fh @msgs;
+
+ # 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;
}
+=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 $fh @_;
+}
=item B<output>
=cut
-my($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 $fh;
- unless( UNIVERSAL::isa($file_or_fh, 'GLOB') ) {
- $fh = do { local *FH };
- open $fh, ">$file_or_fh" or
- die "Can't open test output log $file_or_fh: $!";
+ if( $self->is_fh($file_or_fh) ) {
+ $fh = $file_or_fh;
}
else {
- $fh = $file_or_fh;
+ $fh = do { local *FH };
+ open $fh, ">$file_or_fh" or
+ $self->croak("Can't open test output log $file_or_fh: $!");
+ _autoflush($fh);
}
return $fh;
}
-unless( $^C ) {
- # 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: $!";
- _autoflush(\*TESTOUT);
- _autoflush(\*TESTERR);
- $CLASS->output(\*TESTOUT);
- $CLASS->failure_output(\*TESTERR);
- $CLASS->todo_output(\*TESTOUT);
-}
sub _autoflush {
my($fh) = shift;
}
+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;
+}
+
+
+=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
my $curr_test = $Test->current_test;
$Test->current_test($num);
-Gets/sets the current test # we're on.
+Gets/sets the current test number we're on. You usually shouldn't
+have to set this.
-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 ) {
- $Curr_Test = $num;
+ unless( $self->{Have_Plan} ) {
+ $self->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 $Curr_Test;
+ return $self->{Curr_Test};
}
sub summary {
my($self) = shift;
- return @Test_Results;
+ return map { $_->{'ok'} } @{ $self->{Test_Results} };
}
-=item B<details> I<UNIMPLEMENTED>
+=item B<details>
my @tests = $Test->details;
Like summary(), but with a lot more detail.
$tests[$test_num - 1] =
- { ok => is the test considered ok?
+ { 'ok' => is the test considered a pass?
actual_ok => did it literally say 'ok'?
name => name of the test (if any)
- type => 'skip' or 'todo' (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;
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
+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 $TODO variable. If you want to be sure, tell it explicitly
sub todo {
my($self, $pack) = @_;
- $pack = $pack || $self->exported_to || $self->caller(1);
+ $pack = $pack || $self->exported_to || $self->caller($Level);
+ return 0 unless $pack;
no strict 'refs';
return defined ${$pack.'::TODO'} ? ${$pack.'::TODO'}
sub caller {
my($self, $height) = @_;
$height ||= 0;
-
+
my @caller = CORE::caller($self->level + $height + 1);
return wantarray ? @caller : $caller[0];
}
=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
for( my $stack = 1; my $sub = (CORE::caller($stack))[3]; $stack++ ) {
$in_eval = 1 if $sub =~ /^\(eval\)/;
}
- $Test_Died = 1 unless $in_eval;
+ $Test->{Test_Died} = 1 unless $in_eval;
};
sub _ending {
my $self = shift;
- _sanity_check();
-
- # Bailout if plan() was never called. This is so
- # "require Test::Simple" doesn't puke.
- do{ _my_exit(0) && return } if !$Have_Plan;
+ $self->_sanity_check();
+
+ # Don't bother with an ending if this is a forked copy. Only the parent
+ # should do the ending.
+ # Exit if plan() was never called. This is so "require Test::Simple"
+ # doesn't puke.
+ # Don't do an ending if we bailed out.
+ if( ($self->{Original_Pid} != $$) or
+ (!$self->{Have_Plan} && !$self->{Test_Died}) or
+ $self->{Bailed_Out}
+ )
+ {
+ _my_exit($?);
+ return;
+ }
# 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 $idx ( 0..$self->{Expected_Tests}-1 ) {
+ $test_results->[$idx] = $empty_result
+ unless defined $test_results->[$idx];
}
- my $num_failed = grep !$_, @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];
- if( $Curr_Test < $Expected_Tests ) {
+ 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 $Expected_Tests tests 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;
+ elsif( $num_extra > 0 ) {
+ my $s = $self->{Expected_Tests} == 1 ? '' : 's';
$self->diag(<<"FAIL");
-# Looks like you planned $Expected_Tests tests 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 tests of $Expected_Tests.
+Looks like you failed $num_failed test$s of $num_tests$qualifier.
FAIL
}
- if( $Test_Died ) {
+ if( $self->{Test_Died} ) {
$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 ( $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");
+ $self->diag("No tests run!\n");
_my_exit( 255 ) && return;
}
}
$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 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 5.8.1 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.
+
=head1 EXAMPLES
-At this point, Test::Simple and Test::More are your best examples.
+CPAN can provide the best examples. Test::Simple, Test::More,
+Test::Exception and Test::Differences all use Test::Builder.
=head1 SEE ALSO
=head1 COPYRIGHT
-Copyright 2001 by chromatic E<lt>chromatic@wgz.orgE<gt>,
- Michael G Schwern E<lt>schwern@pobox.comE<gt>.
+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 L<http://www.perl.com/perl/misc/Artistic.html>
+See F<http://www.perl.com/perl/misc/Artistic.html>
=cut
https://perl5.git.perl.org / perl5.git / blobdiff