#!./perl
BEGIN {
unshift @INC, 't';
require Config;
if (($Config::Config{'extensions'} !~ /\bB\b/) ){
print "1..0 # Skip -- Perl configured without B module\n";
exit 0;
}
require 'test.pl'; # we use runperl from 'test.pl', so can't use Test::More
}
plan tests => 159;
require_ok("B::Concise");
$out = runperl(switches => ["-MO=Concise"], prog => '$a', stderr => 1);
# If either of the next two tests fail, it probably means you need to
# fix the section labeled 'fragile kludge' in Concise.pm
($op_base) = ($out =~ /^(\d+)\s*<0>\s*enter/m);
is($op_base, 1, "Smallest OP sequence number");
($op_base_p1, $cop_base)
= ($out =~ /^(\d+)\s*<;>\s*nextstate\(main (-?\d+) /m);
is($op_base_p1, 2, "Second-smallest OP sequence number");
is($cop_base, 1, "Smallest COP sequence number");
# test that with -exec B::Concise navigates past logops (bug #18175)
$out = runperl(
switches => ["-MO=Concise,-exec"],
prog => q{$a=$b && print q/foo/},
stderr => 1,
);
#diag($out);
like($out, qr/print/, "'-exec' option output has print opcode");
######## API tests v.60
use Config; # used for perlio check
B::Concise->import(qw( set_style set_style_standard add_callback
add_style walk_output reset_sequence ));
## walk_output argument checking
# test that walk_output rejects non-HANDLE args
foreach my $foo ("string", [], {}) {
eval { walk_output($foo) };
isnt ($@, '', "walk_output() rejects arg '$foo'");
$@=''; # clear the fail for next test
}
# test accessor mode when arg undefd or 0
foreach my $foo (undef, 0) {
my $handle = walk_output($foo);
is ($handle, \*STDOUT, "walk_output set to STDOUT (default)");
}
{ # any object that can print should be ok for walk_output
package Hugo;
sub new { my $foo = bless {} };
sub print { CORE::print @_ }
}
my $foo = new Hugo; # suggested this API fix
eval { walk_output($foo) };
is ($@, '', "walk_output() accepts obj that can print");
# test that walk_output accepts a HANDLE arg
SKIP: {
skip("no perlio in this build", 4)
unless $Config::Config{useperlio};
foreach my $foo (\*STDOUT, \*STDERR) {
eval { walk_output($foo) };
is ($@, '', "walk_output() accepts STD* " . ref $foo);
}
# now test a ref to scalar
eval { walk_output(\my $junk) };
is ($@, '', "walk_output() accepts ref-to-sprintf target");
$junk = "non-empty";
eval { walk_output(\$junk) };
is ($@, '', "walk_output() accepts ref-to-non-empty-scalar");
}
## add_style
my @stylespec;
$@='';
eval { add_style ('junk_B' => @stylespec) };
like ($@, qr/expecting 3 style-format args/,
"add_style rejects insufficient args");
@stylespec = (0,0,0); # right length, invalid values
$@='';
eval { add_style ('junk' => @stylespec) };
is ($@, '', "add_style accepts: stylename => 3-arg-array");
$@='';
eval { add_style (junk => @stylespec) };
like ($@, qr/style 'junk' already exists, choose a new name/,
"add_style correctly disallows re-adding same style-name" );
# test new arg-checks on set_style
$@='';
eval { set_style (@stylespec) };
is ($@, '', "set_style accepts 3 style-format args");
@stylespec = (); # bad style
eval { set_style (@stylespec) };
like ($@, qr/expecting 3 style-format args/,
"set_style rejects bad style-format args");
#### for content with doc'd options
our($a, $b);
my $func = sub{ $a = $b+42 }; # canonical example asub
sub render {
walk_output(\my $out);
eval { B::Concise::compile(@_)->() };
# diag "rendering $@\n";
return ($out, $@) if wantarray;
return $out;
}
SKIP: {
# tests output to GLOB, using perlio feature directly
skip "no perlio on this build", 127
unless $Config::Config{useperlio};
set_style_standard('concise'); # MUST CALL before output needed
@options = qw(
-basic -exec -tree -compact -loose -vt -ascii
-base10 -bigendian -littleendian
);
foreach $opt (@options) {
($out) = render($opt, $func);
isnt($out, '', "got output with option $opt");
}
## test output control via walk_output
my $treegen = B::Concise::compile('-basic', $func); # reused
{ # test output into a package global string (sprintf-ish)
our $thing;
walk_output(\$thing);
$treegen->();
ok($thing, "walk_output to our SCALAR, output seen");
}
# test walkoutput acceptance of a scalar-bound IO handle
open (my $fh, '>', \my $buf);
walk_output($fh);
$treegen->();
ok($buf, "walk_output to GLOB, output seen");
## test B::Concise::compile error checking
# call compile on non-CODE ref items
if (0) {
# pending STASH splaying
foreach my $ref ([], {}) {
my $typ = ref $ref;
walk_output(\my $out);
eval { B::Concise::compile('-basic', $ref)->() };
like ($@, qr/^err: not a coderef: $typ/,
"compile detects $typ-ref where expecting subref");
is($out,'', "no output when errd"); # announcement prints
}
}
# test against a bogus autovivified subref.
# in debugger, it should look like:
# 1 CODE(0x84840cc)
# -> &CODE(0x84840cc) in ???
my ($res,$err);
TODO: {
#local $TODO = "\tdoes this handling make sense ?";
sub declared_only;
($res,$err) = render('-basic', \&declared_only);
like ($res, qr/coderef CODE\(0x[0-9a-fA-F]+\) has no START/,
"'sub decl_only' seen as having no START");
sub defd_empty {};
($res,$err) = render('-basic', \&defd_empty);
my @lines = split(/\n/, $res);
is(scalar @lines, 3,
"'sub defd_empty {}' seen as 3 liner");
is(1, $res =~ /leavesub/ && $res =~ /(next|db)state/,
"'sub defd_empty {}' seen as 2 ops: leavesub,nextstate");
($res,$err) = render('-basic', \¬_even_declared);
like ($res, qr/coderef CODE\(0x[0-9a-fA-F]+\) has no START/,
"'\¬_even_declared' seen as having no START");
{
package Bar;
our $AUTOLOAD = 'garbage';
sub AUTOLOAD { print "# in AUTOLOAD body: $AUTOLOAD\n" }
}
($res,$err) = render('-basic', Bar::auto_func);
like ($res, qr/unknown function \(Bar::auto_func\)/,
"Bar::auto_func seen as unknown function");
($res,$err) = render('-basic', \&Bar::auto_func);
like ($res, qr/coderef CODE\(0x[0-9a-fA-F]+\) has no START/,
"'\&Bar::auto_func' seen as having no START");
($res,$err) = render('-basic', \&Bar::AUTOLOAD);
like ($res, qr/in AUTOLOAD body: /, "found body of Bar::AUTOLOAD");
}
($res,$err) = render('-basic', Foo::bar);
like ($res, qr/unknown function \(Foo::bar\)/,
"BC::compile detects fn-name as unknown function");
# v.62 tests
pass ("TEST POST-COMPILE OPTION-HANDLING IN WALKER SUBROUTINE");
my $sample;
my $walker = B::Concise::compile('-basic', $func);
walk_output(\$sample);
$walker->('-exec');
like($sample, qr/goto/m, "post-compile -exec");
walk_output(\$sample);
$walker->('-basic');
unlike($sample, qr/goto/m, "post-compile -basic");
# bang at it combinatorically
my %combos;
my @modes = qw( -basic -exec );
my @styles = qw( -concise -debug -linenoise -terse );
# prep samples
for $style (@styles) {
for $mode (@modes) {
walk_output(\$sample);
reset_sequence();
$walker->($style, $mode);
$combos{"$style$mode"} = $sample;
}
}
# crosscheck that samples are all text-different
@list = sort keys %combos;
for $i (0..$#list) {
for $j ($i+1..$#list) {
isnt ($combos{$list[$i]}, $combos{$list[$j]},
"combos for $list[$i] and $list[$j] are different, as expected");
}
}
# add samples with styles in different order
for $mode (@modes) {
for $style (@styles) {
reset_sequence();
walk_output(\$sample);
$walker->($mode, $style);
$combos{"$mode$style"} = $sample;
}
}
# test commutativity of flags, ie that AB == BA
for $mode (@modes) {
for $style (@styles) {
is ( $combos{"$style$mode"},
$combos{"$mode$style"},
"results for $style$mode vs $mode$style are the same" );
}
}
my %save = %combos;
%combos = (); # outputs for $mode=any($order) and any($style)
# add more samples with switching modes & sticky styles
for $style (@styles) {
walk_output(\$sample);
reset_sequence();
$walker->($style);
for $mode (@modes) {
walk_output(\$sample);
reset_sequence();
$walker->($mode);
$combos{"$style/$mode"} = $sample;
}
}
# crosscheck that samples are all text-different
@nm = sort keys %combos;
for $i (0..$#nm) {
for $j ($i+1..$#nm) {
isnt ($combos{$nm[$i]}, $combos{$nm[$j]},
"results for $nm[$i] and $nm[$j] are different, as expected");
}
}
# add samples with switching styles & sticky modes
for $mode (@modes) {
walk_output(\$sample);
reset_sequence();
$walker->($mode);
for $style (@styles) {
walk_output(\$sample);
reset_sequence();
$walker->($style);
$combos{"$mode/$style"} = $sample;
}
}
# test commutativity of flags, ie that AB == BA
for $mode (@modes) {
for $style (@styles) {
is ( $combos{"$style/$mode"},
$combos{"$mode/$style"},
"results for $style/$mode vs $mode/$style are the same" );
}
}
#now do double crosschecks: commutativity across stick / nostick
%combos = (%combos, %save);
# test commutativity of flags, ie that AB == BA
for $mode (@modes) {
for $style (@styles) {
is ( $combos{"$style$mode"},
$combos{"$style/$mode"},
"$style$mode VS $style/$mode are the same" );
is ( $combos{"$mode$style"},
$combos{"$mode/$style"},
"$mode$style VS $mode/$style are the same" );
is ( $combos{"$style$mode"},
$combos{"$mode/$style"},
"$style$mode VS $mode/$style are the same" );
is ( $combos{"$mode$style"},
$combos{"$style/$mode"},
"$mode$style VS $style/$mode are the same" );
}
}
}
# test proper NULLING of pointer, derefd by CvSTART, when a coderef is
# undefd. W/o this, the pointer can dangle into freed and reused
# optree mem, which no longer points to opcodes.
# Using B::Concise to render Config::AUTOLOAD's optree at BEGIN-time
# triggers this obscure bug, cuz AUTOLOAD has a bootstrap version,
# which is used at load-time then undeffed. It is normally
# re-vivified later, but not in time for this (BEGIN/CHECK)-time
# rendering.
$out = runperl ( switches => ["-MO=Concise,Config::AUTOLOAD"],
prog => 'use Config; BEGIN { $Config{awk} }',
stderr => 1 );
like($out, qr/Config::AUTOLOAD exists in stash, but has no START/,
"coderef properly undefined");
$out = runperl ( switches => ["-MO=Concise,Config::AUTOLOAD"],
prog => 'use Config; CHECK { $Config{awk} }',
stderr => 1 );
like($out, qr/Config::AUTOLOAD exists in stash, but has no START/,
"coderef properly undefined");
# test -stash and -src rendering
# todo: stderr=1 puts '-e syntax OK' into $out,
# conceivably fouling one of the lines that are tested
$out = runperl ( switches => ["-MO=Concise,-stash=B::Concise,-src"],
prog => '-e 1', stderr => 1 );
like($out, qr/FUNC: \*B::Concise::concise_cv_obj/,
"stash rendering of B::Concise includes Concise::concise_cv_obj");
like($out, qr/FUNC: \*B::Concise::walk_output/,
"stash rendering includes Concise::walk_output");
like($out, qr/\# 4\d\d: \s+ \$l->concise\(\$level\);/,
"src-line rendering works");
$out = runperl ( switches => ["-MStorable", "-MO=Concise,-stash=Storable,-src"],
prog => '-e 1', stderr => 1 );
like($out, qr/FUNC: \*Storable::BIN_MAJOR/,
"stash rendering includes constant sub: PAD_FAKELEX_MULTI");
like($out, qr/BIN_MAJOR is a constant sub, optimized to a IV/,
"stash rendering identifies it as constant");
$out = runperl ( switches => ["-MO=Concise,-stash=ExtUtils::Mksymlists,-src,-exec"],
prog => '-e 1', stderr => 1 );
like($out, qr/FUNC: \*ExtUtils::Mksymlists::_write_vms/,
"stash rendering loads package as needed");
$out = runperl ( switches => ["-MO=Concise,-stash=Data::Dumper,-src,-exec"],
prog => '-e 1', stderr => 1 );
like($out, qr/FUNC: \*Data::Dumper::format_refaddr/,
"stash rendering loads package as needed");
my $prog = q{package FOO; sub bar { print q{bar} } package main; FOO::bar(); };
# this would fail if %INC used for -stash test
$out = runperl ( switches => ["-MO=Concise,-src,-stash=FOO,-main"],
prog => $prog, stderr => 1 );
like($out, qr/FUNC: \*FOO::bar/,
"stash rendering works on inlined package");
# Test that consecutive nextstate ops are not nulled out when PERLDBf_NOOPT
# is set.
# XXX Does this test belong here?
$out = runperl ( switches => ["-MO=Concise"],
prog => 'BEGIN{$^P = 0x04} 1 if 0; print',
stderr => 1 );
like $out, qr/nextstate.*nextstate/s,
'nulling of nextstate-nextstate happeneth not when $^P | PERLDBf_NOOPT';
# A very basic test for -tree output
$out =
runperl(
switches => ["-MO=Concise,-tree"], prog => 'print', stderr => 1
);
ok index $out=~s/\r\n/\n/gr=~s/gvsv\(\*_\)/gvsv[*_]/r, <<'end'=~s/\r\n/\n/gr =>>= 0, '-tree output';
<6>leave[1 ref]-+-<1>enter
|-<2>nextstate(main 1 -e:1)
`-<5>print-+-<3>pushmark
`-ex-rv2sv---<4>gvsv[*_]
end
__END__