[p5sagit/p5-mst-13.2.git] / ext / B / t / concise.t

#!./perl

BEGIN {
    chdir 't';
    @INC = '../lib';
    require './test.pl';
}

plan tests => 142;

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,
);

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;
$@='';
eval { add_style ('junk_B' => @stylespec) };
like ($@, '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

my $func = sub{ $a = $b+42 };	# canonical example asub

SKIP: {
    # tests output to GLOB, using perlio feature directly
    skip "no perlio on this build", 122
	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) {
	walk_output(\my $out);
	my $treegen = B::Concise::compile($opt, $func);
	$treegen->();
	#print "foo:$out\n";
	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 ???
    sub nosuchfunc;
    eval {  B::Concise::compile('-basic', \&nosuchfunc)->()  };
    like ($@, qr/^err: coderef has no START/,
	  "compile detects CODE-ref w/o actual code");

    foreach my $opt (qw( -concise -exec )) {
	eval { B::Concise::compile($opt,'non_existent_function')->() };
	like ($@, qr/unknown function \(main::non_existent_function\)/,
	      "'$opt' reports non-existent-function properly");
    }

    # 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;
    my %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
    my %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" );
	}
    }
}

__END__
Commit	Line	Data
c517cc47	1	#!./perl
	2
	3	BEGIN {
	4	chdir 't';
	5	@INC = '../lib';
	6	require './test.pl';
	7	}
	8
cc02ea56	9	plan tests => 142;
c517cc47	10
	11	require_ok("B::Concise");
	12
	13	$out = runperl(switches => ["-MO=Concise"], prog => '$a', stderr => 1);
	14
	15	# If either of the next two tests fail, it probably means you need to
	16	# fix the section labeled 'fragile kludge' in Concise.pm
	17
c33fe613	18	($op_base) = ($out =~ /^(\d+)\s<0>\senter/m);
c517cc47	19
c33fe613	20	is($op_base, 1, "Smallest OP sequence number");
c517cc47	21
c27ea44e	22	($op_base_p1, $cop_base)
c27ea44e	23	= ($out =~ /^(\d+)\s<;>\snextstate\(main (-?\d+) /m);
c517cc47	24
c33fe613	25	is($op_base_p1, 2, "Second-smallest OP sequence number");
	26
	27	is($cop_base, 1, "Smallest COP sequence number");
62e36f8a	28
	29	# test that with -exec B::Concise navigates past logops (bug #18175)
	30
	31	$out = runperl(
	32	switches => ["-MO=Concise,-exec"],
cc02ea56	33	prog => q{$a=$b && print q/foo/},
62e36f8a	34	stderr => 1,
	35	);
	36
724aa791	37	like($out, qr/print/, "'-exec' option output has print opcode");
	38
	39	######## API tests v.60
	40
	41	use Config; # used for perlio check
cc02ea56	42	B::Concise->import(qw( set_style set_style_standard add_callback
cc02ea56	43	add_style walk_output reset_sequence ));
724aa791	44
	45	## walk_output argument checking
	46
724aa791	47	# test that walk_output rejects non-HANDLE args
cc02ea56	48	foreach my $foo ("string", [], {}) {
724aa791	49	eval { walk_output($foo) };
	50	isnt ($@, '', "walk_output() rejects arg '$foo'");
	51	$@=''; # clear the fail for next test
	52	}
cc02ea56	53	# test accessor mode when arg undefd or 0
	54	foreach my $foo (undef, 0) {
	55	my $handle = walk_output($foo);
	56	is ($handle, \*STDOUT, "walk_output set to STDOUT (default)");
	57	}
724aa791	58
	59	{ # any object that can print should be ok for walk_output
	60	package Hugo;
	61	sub new { my $foo = bless {} };
	62	sub print { CORE::print @_ }
	63	}
	64	my $foo = new Hugo; # suggested this API fix
	65	eval { walk_output($foo) };
	66	is ($@, '', "walk_output() accepts obj that can print");
	67
2ce64696	68	# test that walk_output accepts a HANDLE arg
	69	SKIP: {
	70	skip("no perlio in this build", 4)
	71	unless $Config::Config{useperlio};
	72
	73	foreach my $foo (\STDOUT, \STDERR) {
	74	eval { walk_output($foo) };
	75	is ($@, '', "walk_output() accepts STD* " . ref $foo);
	76	}
	77
	78	# now test a ref to scalar
	79	eval { walk_output(\my $junk) };
	80	is ($@, '', "walk_output() accepts ref-to-sprintf target");
	81
	82	$junk = "non-empty";
	83	eval { walk_output(\$junk) };
	84	is ($@, '', "walk_output() accepts ref-to-non-empty-scalar");
	85	}
724aa791	86
	87	## add_style
	88	my @stylespec;
	89	$@='';
	90	eval { add_style ('junk_B' => @stylespec) };
	91	like ($@, 'expecting 3 style-format args',
	92	"add_style rejects insufficient args");
	93
	94	@stylespec = (0,0,0); # right length, invalid values
	95	$@='';
	96	eval { add_style ('junk' => @stylespec) };
	97	is ($@, '', "add_style accepts: stylename => 3-arg-array");
	98
	99	$@='';
	100	eval { add_style (junk => @stylespec) };
	101	like ($@, qr/style 'junk' already exists, choose a new name/,
	102	"add_style correctly disallows re-adding same style-name" );
	103
	104	# test new arg-checks on set_style
	105	$@='';
	106	eval { set_style (@stylespec) };
	107	is ($@, '', "set_style accepts 3 style-format args");
	108
	109	@stylespec = (); # bad style
	110
	111	eval { set_style (@stylespec) };
	112	like ($@, qr/expecting 3 style-format args/,
	113	"set_style rejects bad style-format args");
	114
724aa791	115	#### for content with doc'd options
2ce64696	116
cc02ea56	117	my $func = sub{ $a = $b+42 }; # canonical example asub
2ce64696	118
cc02ea56	119	SKIP: {
	120	# tests output to GLOB, using perlio feature directly
	121	skip "no perlio on this build", 122
	122	unless $Config::Config{useperlio};
	123
	124	set_style_standard('concise'); # MUST CALL before output needed
	125
2ce64696	126	@options = qw(
cc02ea56	127	-basic -exec -tree -compact -loose -vt -ascii
2ce64696	128	-base10 -bigendian -littleendian
	129	);
	130	foreach $opt (@options) {
	131	walk_output(\my $out);
	132	my $treegen = B::Concise::compile($opt, $func);
	133	$treegen->();
	134	#print "foo:$out\n";
	135	isnt($out, '', "got output with option $opt");
	136	}
cc02ea56	137
2ce64696	138	## test output control via walk_output
cc02ea56	139
2ce64696	140	my $treegen = B::Concise::compile('-basic', $func); # reused
cc02ea56	141
2ce64696	142	{ # test output into a package global string (sprintf-ish)
	143	our $thing;
	144	walk_output(\$thing);
	145	$treegen->();
	146	ok($thing, "walk_output to our SCALAR, output seen");
	147	}
	148
cc02ea56	149	# test walkoutput acceptance of a scalar-bound IO handle
724aa791	150	open (my $fh, '>', \my $buf);
	151	walk_output($fh);
	152	$treegen->();
	153	ok($buf, "walk_output to GLOB, output seen");
cc02ea56	154
2ce64696	155	## Test B::Concise::compile error checking
cc02ea56	156
2ce64696	157	# call compile on non-CODE ref items
cc02ea56	158	if (0) {
	159	# pending STASH splaying
	160
	161	foreach my $ref ([], {}) {
	162	my $typ = ref $ref;
	163	walk_output(\my $out);
	164	eval { B::Concise::compile('-basic', $ref)->() };
	165	like ($@, qr/^err: not a coderef: $typ/,
	166	"compile detects $typ-ref where expecting subref");
	167	# is($out,'', "no output when errd"); # announcement prints
	168	}
2ce64696	169	}
cc02ea56	170
2ce64696	171	# test against a bogus autovivified subref.
	172	# in debugger, it should look like:
	173	# 1 CODE(0x84840cc)
	174	# -> &CODE(0x84840cc) in ???
	175	sub nosuchfunc;
cc02ea56	176	eval { B::Concise::compile('-basic', \&nosuchfunc)->() };
2ce64696	177	like ($@, qr/^err: coderef has no START/,
	178	"compile detects CODE-ref w/o actual code");
	179
	180	foreach my $opt (qw( -concise -exec )) {
	181	eval { B::Concise::compile($opt,'non_existent_function')->() };
	182	like ($@, qr/unknown function \(main::non_existent_function\)/,
	183	"'$opt' reports non-existent-function properly");
	184	}
cc02ea56	185
	186	# v.62 tests
	187
	188	pass ("TEST POST-COMPILE OPTION-HANDLING IN WALKER SUBROUTINE");
	189
	190	my $sample;
	191
	192	my $walker = B::Concise::compile('-basic', $func);
	193	walk_output(\$sample);
	194	$walker->('-exec');
	195	like($sample, qr/goto/m, "post-compile -exec");
	196
	197	walk_output(\$sample);
	198	$walker->('-basic');
	199	unlike($sample, qr/goto/m, "post-compile -basic");
	200
	201
	202	# bang at it combinatorically
	203	my %combos;
	204	my @modes = qw( -basic -exec );
	205	my @styles = qw( -concise -debug -linenoise -terse );
	206
	207	# prep samples
	208	for $style (@styles) {
	209	for $mode (@modes) {
	210	walk_output(\$sample);
	211	reset_sequence();
	212	$walker->($style, $mode);
	213	$combos{"$style$mode"} = $sample;
	214	}
	215	}
	216	# crosscheck that samples are all text-different
	217	@list = sort keys %combos;
	218	for $i (0..$#list) {
	219	for $j ($i+1..$#list) {
	220	isnt ($combos{$list[$i]}, $combos{$list[$j]},
	221	"combos for $list[$i] and $list[$j] are different, as expected");
	222	}
	223	}
	224
	225	# add samples with styles in different order
	226	for $mode (@modes) {
	227	for $style (@styles) {
	228	reset_sequence();
	229	walk_output(\$sample);
	230	$walker->($mode, $style);
	231	$combos{"$mode$style"} = $sample;
	232	}
	233	}
	234	# test commutativity of flags, ie that AB == BA
	235	for $mode (@modes) {
	236	for $style (@styles) {
	237	is ( $combos{"$style$mode"},
	238	$combos{"$mode$style"},
	239	"results for $style$mode vs $mode$style are the same" );
	240	}
	241	}
	242
	243	my %save = %combos;
	244	my %combos; # outputs for $mode=any($order) and any($style)
	245
	246	# add more samples with switching modes & sticky styles
	247	for $style (@styles) {
	248	walk_output(\$sample);
249	reset_sequence();
250	$walker->($style);
251	for $mode (@modes) {
252	walk_output(\$sample);
253	reset_sequence();
254	$walker->($mode);
255	$combos{"$style/$mode"} = $sample;
256	}
257	}
258	# crosscheck that samples are all text-different
259	@nm = sort keys %combos;
260	for $i (0..$#nm) {
261	for $j ($i+1..$#nm) {
262	isnt ($combos{$nm[$i]}, $combos{$nm[$j]},
263	"results for $nm[$i] and $nm[$j] are different, as expected");
264	}
265	}
266
267	# add samples with switching styles & sticky modes
268	for $mode (@modes) {
269	walk_output(\$sample);
270	reset_sequence();
271	$walker->($mode);
272	for $style (@styles) {
273	walk_output(\$sample);
274	reset_sequence();
275	$walker->($style);
276	$combos{"$mode/$style"} = $sample;
277	}
278	}
279	# test commutativity of flags, ie that AB == BA
280	for $mode (@modes) {
281	for $style (@styles) {
282	is ( $combos{"$style/$mode"},
283	$combos{"$mode/$style"},
284	"results for $style/$mode vs $mode/$style are the same" );
285	}
286	}
287
288
289	#now do double crosschecks: commutativity across stick / nostick
290	my %combos = (%combos, %save);
291
292	# test commutativity of flags, ie that AB == BA
293	for $mode (@modes) {
294	for $style (@styles) {
295
296	is ( $combos{"$style$mode"},
297	$combos{"$style/$mode"},
298	"$style$mode VS $style/$mode are the same" );
299
300	is ( $combos{"$mode$style"},
301	$combos{"$mode/$style"},
302	"$mode$style VS $mode/$style are the same" );
303
304	is ( $combos{"$style$mode"},
305	$combos{"$mode/$style"},
306	"$style$mode VS $mode/$style are the same" );
307
308	is ( $combos{"$mode$style"},
309	$combos{"$style/$mode"},
310	"$mode$style VS $style/$mode are the same" );
311	}
312	}
724aa791	313	}
cc02ea56	314
	315	__END__
	316