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package App::Prove::State;
use strict;
use vars qw($VERSION @ISA);
use File::Find;
use File::Spec;
use Carp;
use App::Prove::State::Result;
use TAP::Parser::YAMLish::Reader ();
use TAP::Parser::YAMLish::Writer ();
use TAP::Base;
BEGIN {
@ISA = qw( TAP::Base );
__PACKAGE__->mk_methods('result_class');
}
use constant IS_WIN32 => ( $^O =~ /^(MS)?Win32$/ );
use constant NEED_GLOB => IS_WIN32;
=head1 NAME
App::Prove::State - State storage for the C<prove> command.
=head1 VERSION
Version 3.17
=cut
$VERSION = '3.17';
=head1 DESCRIPTION
The C<prove> command supports a C<--state> option that instructs it to
store persistent state across runs. This module implements that state
and the operations that may be performed on it.
=head1 SYNOPSIS
# Re-run failed tests
$ prove --state=fail,save -rbv
=cut
=head1 METHODS
=head2 Class Methods
=head3 C<new>
Accepts a hashref with the following key/value pairs:
=over 4
=item * C<store>
The filename of the data store holding the data that App::Prove::State reads.
=item * C<extension> (optional)
The test name extension. Defaults to C<.t>.
=item * C<result_class> (optional)
The name of the C<result_class>. Defaults to C<App::Prove::State::Result>.
=back
=cut
# override TAP::Base::new:
sub new {
my $class = shift;
my %args = %{ shift || {} };
my $self = bless {
select => [],
seq => 1,
store => delete $args{store},
extension => ( delete $args{extension} || '.t' ),
result_class =>
( delete $args{result_class} || 'App::Prove::State::Result' ),
}, $class;
$self->{_} = $self->result_class->new(
{ tests => {},
generation => 1,
}
);
my $store = $self->{store};
$self->load($store)
if defined $store && -f $store;
return $self;
}
=head2 C<result_class>
Getter/setter for the name of the class used for tracking test results. This
class should either subclass from C<App::Prove::State::Result> or provide an
identical interface.
=cut
=head2 C<extension>
Get or set the extension files must have in order to be considered
tests. Defaults to '.t'.
=cut
sub extension {
my $self = shift;
$self->{extension} = shift if @_;
return $self->{extension};
}
=head2 C<results>
Get the results of the last test run. Returns a C<result_class()> instance.
=cut
sub results {
my $self = shift;
$self->{_} || $self->result_class->new;
}
=head2 C<commit>
Save the test results. Should be called after all tests have run.
=cut
sub commit {
my $self = shift;
if ( $self->{should_save} ) {
$self->save;
}
}
=head2 Instance Methods
=head3 C<apply_switch>
$self->apply_switch('failed,save');
Apply a list of switch options to the state, updating the internal
object state as a result. Nothing is returned.
Diagnostics:
- "Illegal state option: %s"
=over
=item C<last>
Run in the same order as last time
=item C<failed>
Run only the failed tests from last time
=item C<passed>
Run only the passed tests from last time
=item C<all>
Run all tests in normal order
=item C<hot>
Run the tests that most recently failed first
=item C<todo>
Run the tests ordered by number of todos.
=item C<slow>
Run the tests in slowest to fastest order.
=item C<fast>
Run test tests in fastest to slowest order.
=item C<new>
Run the tests in newest to oldest order.
=item C<old>
Run the tests in oldest to newest order.
=item C<save>
Save the state on exit.
=back
=cut
sub apply_switch {
my $self = shift;
my @opts = @_;
my $last_gen = $self->results->generation - 1;
my $last_run_time = $self->results->last_run_time;
my $now = $self->get_time;
my @switches = map { split /,/ } @opts;
my %handler = (
last => sub {
$self->_select(
where => sub { $_->generation >= $last_gen },
order => sub { $_->sequence }
);
},
failed => sub {
$self->_select(
where => sub { $_->result != 0 },
order => sub { -$_->result }
);
},
passed => sub {
$self->_select( where => sub { $_->result == 0 } );
},
all => sub {
$self->_select();
},
todo => sub {
$self->_select(
where => sub { $_->num_todo != 0 },
order => sub { -$_->num_todo; }
);
},
hot => sub {
$self->_select(
where => sub { defined $_->last_fail_time },
order => sub { $now - $_->last_fail_time }
);
},
slow => sub {
$self->_select( order => sub { -$_->elapsed } );
},
fast => sub {
$self->_select( order => sub { $_->elapsed } );
},
new => sub {
$self->_select( order => sub { -$_->mtime } );
},
old => sub {
$self->_select( order => sub { $_->mtime } );
},
fresh => sub {
$self->_select( where => sub { $_->mtime >= $last_run_time } );
},
save => sub {
$self->{should_save}++;
},
adrian => sub {
unshift @switches, qw( hot all save );
},
);
while ( defined( my $ele = shift @switches ) ) {
my ( $opt, $arg )
= ( $ele =~ /^([^:]+):(.*)/ )
? ( $1, $2 )
: ( $ele, undef );
my $code = $handler{$opt}
|| croak "Illegal state option: $opt";
$code->($arg);
}
return;
}
sub _select {
my ( $self, %spec ) = @_;
push @{ $self->{select} }, \%spec;
}
=head3 C<get_tests>
Given a list of args get the names of tests that should run
=cut
sub get_tests {
my $self = shift;
my $recurse = shift;
my @argv = @_;
my %seen;
my @selected = $self->_query;
unless ( @argv || @{ $self->{select} } ) {
@argv = $recurse ? '.' : 't';
croak qq{No tests named and '@argv' directory not found}
unless -d $argv[0];
}
push @selected, $self->_get_raw_tests( $recurse, @argv ) if @argv;
return grep { !$seen{$_}++ } @selected;
}
sub _query {
my $self = shift;
if ( my @sel = @{ $self->{select} } ) {
warn "No saved state, selection will be empty\n"
unless $self->results->num_tests;
return map { $self->_query_clause($_) } @sel;
}
return;
}
sub _query_clause {
my ( $self, $clause ) = @_;
my @got;
my $results = $self->results;
my $where = $clause->{where} || sub {1};
# Select
for my $name ( $results->test_names ) {
next unless -f $name;
local $_ = $results->test($name);
push @got, $name if $where->();
}
# Sort
if ( my $order = $clause->{order} ) {
@got = map { $_->[0] }
sort {
( defined $b->[1] <=> defined $a->[1] )
|| ( ( $a->[1] || 0 ) <=> ( $b->[1] || 0 ) )
} map {
[ $_,
do { local $_ = $results->test($_); $order->() }
]
} @got;
}
return @got;
}
sub _get_raw_tests {
my $self = shift;
my $recurse = shift;
my @argv = @_;
my @tests;
# Do globbing on Win32.
@argv = map { glob "$_" } @argv if NEED_GLOB;
my $extension = $self->{extension};
for my $arg (@argv) {
if ( '-' eq $arg ) {
push @argv => <STDIN>;
chomp(@argv);
next;
}
push @tests,
sort -d $arg
? $recurse
? $self->_expand_dir_recursive( $arg, $extension )
: glob( File::Spec->catfile( $arg, "*$extension" ) )
: $arg;
}
return @tests;
}
sub _expand_dir_recursive {
my ( $self, $dir, $extension ) = @_;
my @tests;
find(
{ follow => 1, #21938
follow_skip => 2,
wanted => sub {
-f
&& /\Q$extension\E$/
&& push @tests => $File::Find::name;
}
},
$dir
);
return @tests;
}
=head3 C<observe_test>
Store the results of a test.
=cut
# Store:
# last fail time
# last pass time
# last run time
# most recent result
# most recent todos
# total failures
# total passes
# state generation
# parser
sub observe_test {
my ( $self, $test_info, $parser ) = @_;
my $name = $test_info->[0];
my $fail = scalar( $parser->failed ) + ( $parser->has_problems ? 1 : 0 );
my $todo = scalar( $parser->todo );
my $start_time = $parser->start_time;
my $end_time = $parser->end_time,
my $test = $self->results->test($name);
$test->sequence( $self->{seq}++ );
$test->generation( $self->results->generation );
$test->run_time($end_time);
$test->result($fail);
$test->num_todo($todo);
$test->elapsed( $end_time - $start_time );
$test->parser($parser);
if ($fail) {
$test->total_failures( $test->total_failures + 1 );
$test->last_fail_time($end_time);
}
else {
$test->total_passes( $test->total_passes + 1 );
$test->last_pass_time($end_time);
}
}
=head3 C<save>
Write the state to a file.
=cut
sub save {
my ($self) = @_;
my $store = $self->{store} or return;
$self->results->last_run_time( $self->get_time );
my $writer = TAP::Parser::YAMLish::Writer->new;
local *FH;
open FH, ">$store" or croak "Can't write $store ($!)";
$writer->write( $self->results->raw, \*FH );
close FH;
}
=head3 C<load>
Load the state from a file
=cut
sub load {
my ( $self, $name ) = @_;
my $reader = TAP::Parser::YAMLish::Reader->new;
local *FH;
open FH, "<$name" or croak "Can't read $name ($!)";
# XXX this is temporary
$self->{_} = $self->result_class->new(
$reader->read(
sub {
my $line = <FH>;
defined $line && chomp $line;
return $line;
}
)
);
# $writer->write( $self->{tests} || {}, \*FH );
close FH;
$self->_regen_seq;
$self->_prune_and_stamp;
$self->results->generation( $self->results->generation + 1 );
}
sub _prune_and_stamp {
my $self = shift;
my $results = $self->results;
my @tests = $self->results->tests;
for my $test (@tests) {
my $name = $test->name;
if ( my @stat = stat $name ) {
$test->mtime( $stat[9] );
}
else {
$results->remove($name);
}
}
}
sub _regen_seq {
my $self = shift;
for my $test ( $self->results->tests ) {
$self->{seq} = $test->sequence + 1
if defined $test->sequence && $test->sequence >= $self->{seq};
}
}
1;