require "test.pl";
}
use strict;
+use Config;
+use Filter::Util::Call;
-plan(tests => 12);
+plan(tests => 141);
unshift @INC, sub {
no warnings 'uninitialized';
my $fh;
open $fh, "<", \'pass("Can return file handles from \@INC");';
-do $fh;
+do $fh or die;
my @origlines = ("# This is a blank line\n",
"pass('Can return generators from \@INC');\n",
return defined $_ ? 1 : 0;
};
-do \&generator;
+do \&generator or die;
@lines = @origlines;
# Check that the array dereferencing works ready for the more complex tests:
-do [\&generator];
-
-do [sub {
- my $param = $_[1];
- is (ref $param, 'ARRAY', "Got our parameter");
- $_ = shift @$param;
- return defined $_ ? 1 : 0;
- }, ["pass('Can return generators which take state');\n",
- "pass('And return multiple lines');\n",
- ]];
+do [\&generator] or die;
+
+sub generator_with_state {
+ my $param = $_[1];
+ is (ref $param, 'ARRAY', "Got our parameter");
+ $_ = shift @$param;
+ return defined $_ ? 1 : 0;
+}
+
+do [\&generator_with_state,
+ ["pass('Can return generators which take state');\n",
+ "pass('And return multiple lines');\n",
+ ]] or die;
open $fh, "<", \'fail("File handles and filters work from \@INC");';
-do [$fh, sub {s/fail/pass/}];
+do [$fh, sub {s/fail/pass/; return;}] or die;
open $fh, "<", \'fail("File handles and filters with state work from \@INC");';
-do [$fh, sub {s/$_[1]/pass/}, 'fail'];
+do [$fh, sub {s/$_[1]/pass/; return;}, 'fail'] or die;
+
+print "# 2 tests with pipes from subprocesses.\n";
+
+open $fh, 'echo pass|' or die $!;
+
+do $fh or die;
+
+open $fh, 'echo fail|' or die $!;
+
+do [$fh, sub {s/$_[1]/pass/; return;}, 'fail'] or die;
+
+sub rot13_filter {
+ filter_add(sub {
+ my $status = filter_read();
+ tr/A-Za-z/N-ZA-Mn-za-m/;
+ $status;
+ })
+}
+
+open $fh, "<", \<<'EOC';
+BEGIN {rot13_filter};
+cnff("This will rot13'ed prepend");
+EOC
+
+do $fh or die;
+
+open $fh, "<", \<<'EOC';
+ORTVA {ebg13_svygre};
+pass("This will rot13'ed twice");
+EOC
+
+do [$fh, sub {tr/A-Za-z/N-ZA-Mn-za-m/; return;}] or die;
+
+my $count = 32;
+sub prepend_rot13_filter {
+ filter_add(sub {
+ my $previous = $_;
+ # Filters should append to any existing data in $_
+ # But (logically) shouldn't filter it twice.
+ my $test = "fzrt!";
+ $_ = $test;
+ my $status = filter_read();
+ my $got = substr $_, 0, length $test, '';
+ is $got, $test, "Upstream didn't alter existing data";
+ tr/A-Za-z/N-ZA-Mn-za-m/;
+ $_ = $previous . $_;
+ die "Looping infinitely" unless $count--;
+ $status;
+ })
+}
+
+open $fh, "<", \<<'EOC';
+ORTVA {cercraq_ebg13_svygre};
+pass("This will rot13'ed twice");
+EOC
+
+do [$fh, sub {tr/A-Za-z/N-ZA-Mn-za-m/; return;}] or die;
+
+# This generates a heck of a lot of oks, but I think it's necessary.
+my $amount = 1;
+sub prepend_block_counting_filter {
+ filter_add(sub {
+ my $output = $_;
+ my $count = 256;
+ while (--$count) {
+ $_ = '';
+ my $status = filter_read($amount);
+ cmp_ok (length $_, '<=', $amount, "block mode works?");
+ $output .= $_;
+ if ($status <= 0 or /\n/s) {
+ $_ = $output;
+ return $status;
+ }
+ }
+ die "Looping infinitely";
+
+ })
+}
+
+open $fh, "<", \<<'EOC';
+BEGIN {prepend_block_counting_filter};
+pass("one by one");
+pass("and again");
+EOC
+
+do [$fh, sub {return;}] or die;
+
+open $fh, "<", \<<'EOC';
+BEGIN {prepend_block_counting_filter};
+pas("SSS make s fast SSS");
+EOC
+
+TODO: {
+ todo_skip "disabled under -Dmad", 50 if $Config{mad};
+ do [$fh, sub {s/s/ss/gs; s/([\nS])/$1$1$1/gs; return;}] or die;
+}
+
+sub prepend_line_counting_filter {
+ filter_add(sub {
+ my $output = $_;
+ $_ = '';
+ my $status = filter_read();
+ my $newlines = tr/\n//;
+ cmp_ok ($newlines, '<=', 1, "1 line at most?");
+ $_ = $output . $_ if defined $output;
+ return $status;
+ })
+}
+
+open $fh, "<", \<<'EOC';
+BEGIN {prepend_line_counting_filter};
+pass("You should see this line thrice");
+EOC
+
+do [$fh, sub {$_ .= $_ . $_; return;}] or die;
+
+do \"pass\n(\n'Scalar references are treated as initial file contents'\n)\n"
+or die;
+
+open $fh, "<", \"ss('The file is concatentated');";
+
+do [\'pa', $fh] or die;
+
+open $fh, "<", \"ff('Gur svygre vf bayl eha ba gur svyr');";
+
+do [\'pa', $fh, sub {tr/A-Za-z/N-ZA-Mn-za-m/; return;}] or die;
+
+open $fh, "<", \"SS('State also works');";
+
+do [\'pa', $fh, sub {s/($_[1])/lc $1/ge; return;}, "S"] or die;
+
+@lines = ('ss', '(', "'you can use a generator'", ')');
+
+do [\'pa', \&generator] or die;
+
+do [\'pa', \&generator_with_state,
+ ["ss('And generators which take state');\n",
+ "pass('And return multiple lines');\n",
+ ]] or die;