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package TAP::Formatter::Base;
use strict;
use warnings;
use base 'TAP::Base';
use POSIX qw(strftime);
my $MAX_ERRORS = 5;
my %VALIDATION_FOR;
BEGIN {
%VALIDATION_FOR = (
directives => sub { shift; shift },
verbosity => sub { shift; shift },
normalize => sub { shift; shift },
timer => sub { shift; shift },
failures => sub { shift; shift },
comments => sub { shift; shift },
errors => sub { shift; shift },
color => sub { shift; shift },
jobs => sub { shift; shift },
show_count => sub { shift; shift },
stdout => sub {
my ( $self, $ref ) = @_;
$self->_croak("option 'stdout' needs a filehandle")
unless $self->_is_filehandle($ref);
return $ref;
},
);
sub _is_filehandle {
my ( $self, $ref ) = @_;
return 0 if !defined $ref;
return 1 if ref $ref eq 'GLOB'; # lexical filehandle
return 1 if !ref $ref && ref \$ref eq 'GLOB'; # bare glob like *STDOUT
return 1 if eval { $ref->can('print') };
return 0;
}
my @getter_setters = qw(
_longest
_printed_summary_header
_colorizer
);
__PACKAGE__->mk_methods( @getter_setters, keys %VALIDATION_FOR );
}
=head1 NAME
TAP::Formatter::Base - Base class for harness output delegates
=head1 VERSION
Version 3.42
=cut
our $VERSION = '3.42';
=head1 DESCRIPTION
This provides console orientated output formatting for TAP::Harness.
=head1 SYNOPSIS
use TAP::Formatter::Console;
my $harness = TAP::Formatter::Console->new( \%args );
=cut
sub _initialize {
my ( $self, $arg_for ) = @_;
$arg_for ||= {};
$self->SUPER::_initialize($arg_for);
my %arg_for = %$arg_for; # force a shallow copy
$self->verbosity(0);
for my $name ( keys %VALIDATION_FOR ) {
my $property = delete $arg_for{$name};
if ( defined $property ) {
my $validate = $VALIDATION_FOR{$name};
$self->$name( $self->$validate($property) );
}
}
if ( my @props = keys %arg_for ) {
$self->_croak(
"Unknown arguments to " . __PACKAGE__ . "::new (@props)" );
}
$self->stdout( \*STDOUT ) unless $self->stdout;
if ( $self->color ) {
require TAP::Formatter::Color;
$self->_colorizer( TAP::Formatter::Color->new );
}
return $self;
}
sub verbose { shift->verbosity >= 1 }
sub quiet { shift->verbosity <= -1 }
sub really_quiet { shift->verbosity <= -2 }
sub silent { shift->verbosity <= -3 }
=head1 METHODS
=head2 Class Methods
=head3 C<new>
my %args = (
verbose => 1,
)
my $harness = TAP::Formatter::Console->new( \%args );
The constructor returns a new C<TAP::Formatter::Console> object. If
a L<TAP::Harness> is created with no C<formatter> a
C<TAP::Formatter::Console> is automatically created. If any of the
following options were given to TAP::Harness->new they well be passed to
this constructor which accepts an optional hashref whose allowed keys are:
=over 4
=item * C<verbosity>
Set the verbosity level.
=item * C<verbose>
Printing individual test results to STDOUT.
=item * C<timer>
Append run time for each test to output. Uses L<Time::HiRes> if available.
=item * C<failures>
Show test failures (this is a no-op if C<verbose> is selected).
=item * C<comments>
Show test comments (this is a no-op if C<verbose> is selected).
=item * C<quiet>
Suppressing some test output (mostly failures while tests are running).
=item * C<really_quiet>
Suppressing everything but the tests summary.
=item * C<silent>
Suppressing all output.
=item * C<errors>
If parse errors are found in the TAP output, a note of this will be made
in the summary report. To see all of the parse errors, set this argument to
true:
errors => 1
=item * C<directives>
If set to a true value, only test results with directives will be displayed.
This overrides other settings such as C<verbose>, C<failures>, or C<comments>.
=item * C<stdout>
A filehandle for catching standard output.
=item * C<color>
If defined specifies whether color output is desired. If C<color> is not
defined it will default to color output if color support is available on
the current platform and output is not being redirected.
=item * C<jobs>
The number of concurrent jobs this formatter will handle.
=item * C<show_count>
Boolean value. If false, disables the C<X/Y> test count which shows up while
tests are running.
=back
Any keys for which the value is C<undef> will be ignored.
=cut
# new supplied by TAP::Base
=head3 C<prepare>
Called by Test::Harness before any test output is generated.
This is an advisory and may not be called in the case where tests are
being supplied to Test::Harness by an iterator.
=cut
sub prepare {
my ( $self, @tests ) = @_;
my $longest = 0;
for my $test (@tests) {
$longest = length $test if length $test > $longest;
}
$self->_longest($longest);
}
sub _format_now { strftime "[%H:%M:%S]", localtime }
sub _format_name {
my ( $self, $test ) = @_;
my $name = $test;
my $periods = '.' x ( $self->_longest + 2 - length $test );
$periods = " $periods ";
if ( $self->timer ) {
my $stamp = $self->_format_now();
return "$stamp $name$periods";
}
else {
return "$name$periods";
}
}
=head3 C<open_test>
Called to create a new test session. A test session looks like this:
my $session = $formatter->open_test( $test, $parser );
while ( defined( my $result = $parser->next ) ) {
$session->result($result);
exit 1 if $result->is_bailout;
}
$session->close_test;
=cut
sub open_test {
die "Unimplemented.";
}
sub _output_success {
my ( $self, $msg ) = @_;
$self->_output($msg);
}
=head3 C<summary>
$harness->summary( $aggregate );
C<summary> prints the summary report after all tests are run. The first
argument is an aggregate to summarise. An optional second argument may
be set to a true value to indicate that the summary is being output as a
result of an interrupted test run.
=cut
sub summary {
my ( $self, $aggregate, $interrupted ) = @_;
return if $self->silent;
my @t = $aggregate->descriptions;
my $tests = \@t;
my $runtime = $aggregate->elapsed_timestr;
my $total = $aggregate->total;
my $passed = $aggregate->passed;
if ( $self->timer ) {
$self->_output( $self->_format_now(), "\n" );
}
$self->_failure_output("Test run interrupted!\n")
if $interrupted;
# TODO: Check this condition still works when all subtests pass but
# the exit status is nonzero
if ( $aggregate->all_passed ) {
$self->_output_success("All tests successful.\n");
}
# ~TODO option where $aggregate->skipped generates reports
if ( $total != $passed or $aggregate->has_problems ) {
$self->_output("\nTest Summary Report");
$self->_output("\n-------------------\n");
for my $test (@$tests) {
$self->_printed_summary_header(0);
my ($parser) = $aggregate->parsers($test);
$self->_output_summary_failure(
'failed',
[ ' Failed test: ', ' Failed tests: ' ],
$test, $parser
);
$self->_output_summary_failure(
'todo_passed',
" TODO passed: ", $test, $parser
);
# ~TODO this cannot be the default
#$self->_output_summary_failure( 'skipped', " Tests skipped: " );
if ( my $exit = $parser->exit ) {
$self->_summary_test_header( $test, $parser );
$self->_failure_output(" Non-zero exit status: $exit\n");
}
elsif ( my $wait = $parser->wait ) {
$self->_summary_test_header( $test, $parser );
$self->_failure_output(" Non-zero wait status: $wait\n");
}
if ( my @errors = $parser->parse_errors ) {
my $explain;
if ( @errors > $MAX_ERRORS && !$self->errors ) {
$explain
= "Displayed the first $MAX_ERRORS of "
. scalar(@errors)
. " TAP syntax errors.\n"
. "Re-run prove with the -p option to see them all.\n";
splice @errors, $MAX_ERRORS;
}
$self->_summary_test_header( $test, $parser );
$self->_failure_output(
sprintf " Parse errors: %s\n",
shift @errors
);
for my $error (@errors) {
my $spaces = ' ' x 16;
$self->_failure_output("$spaces$error\n");
}
$self->_failure_output($explain) if $explain;
}
}
}
my $files = @$tests;
$self->_output("Files=$files, Tests=$total, $runtime\n");
my $status = $aggregate->get_status;
$self->_output("Result: $status\n");
}
sub _output_summary_failure {
my ( $self, $method, $name, $test, $parser ) = @_;
# ugly hack. Must rethink this :(
my $output = $method eq 'failed' ? '_failure_output' : '_output';
if ( my @r = $parser->$method() ) {
$self->_summary_test_header( $test, $parser );
my ( $singular, $plural )
= 'ARRAY' eq ref $name ? @$name : ( $name, $name );
$self->$output( @r == 1 ? $singular : $plural );
my @results = $self->_balanced_range( 40, @r );
$self->$output( sprintf "%s\n" => shift @results );
my $spaces = ' ' x 16;
while (@results) {
$self->$output( sprintf "$spaces%s\n" => shift @results );
}
}
}
sub _summary_test_header {
my ( $self, $test, $parser ) = @_;
return if $self->_printed_summary_header;
my $spaces = ' ' x ( $self->_longest - length $test );
$spaces = ' ' unless $spaces;
my $output = $self->_get_output_method($parser);
my $wait = $parser->wait;
defined $wait or $wait = '(none)';
$self->$output(
sprintf "$test$spaces(Wstat: %s Tests: %d Failed: %d)\n",
$wait, $parser->tests_run, scalar $parser->failed
);
$self->_printed_summary_header(1);
}
sub _output {
my $self = shift;
print { $self->stdout } @_;
}
sub _failure_output {
my $self = shift;
$self->_output(@_);
}
sub _balanced_range {
my ( $self, $limit, @range ) = @_;
@range = $self->_range(@range);
my $line = "";
my @lines;
my $curr = 0;
while (@range) {
if ( $curr < $limit ) {
my $range = ( shift @range ) . ", ";
$line .= $range;
$curr += length $range;
}
elsif (@range) {
$line =~ s/, $//;
push @lines => $line;
$line = '';
$curr = 0;
}
}
if ($line) {
$line =~ s/, $//;
push @lines => $line;
}
return @lines;
}
sub _range {
my ( $self, @numbers ) = @_;
# shouldn't be needed, but subclasses might call this
@numbers = sort { $a <=> $b } @numbers;
my ( $min, @range );
for my $i ( 0 .. $#numbers ) {
my $num = $numbers[$i];
my $next = $numbers[ $i + 1 ];
if ( defined $next && $next == $num + 1 ) {
if ( !defined $min ) {
$min = $num;
}
}
elsif ( defined $min ) {
push @range => "$min-$num";
undef $min;
}
else {
push @range => $num;
}
}
return @range;
}
sub _get_output_method {
my ( $self, $parser ) = @_;
return $parser->has_problems ? '_failure_output' : '_output';
}
1;
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