[perl #68108] : also fix if/else constant folding

[p5sagit/p5-mst-13.2.git] / t / op / readline.t

diff --git a/t/op/readline.t b/t/op/readline.t
index 8936022..1069a97 100644 (file)
--- a/t/op/readline.t
+++ b/t/op/readline.t
@@ -6,24 +6,106 @@ BEGIN {
     require './test.pl';
 }
 
-plan tests => 5;
+plan tests => 18;
 
 eval { for (\2) { $_ = <FH> } };
 like($@, 'Modification of a read-only value attempted', '[perl #19566]');
 
 {
-  open A,"+>a"; $a = 3;
+  my $file = tempfile();
+  open A,'+>',$file; $a = 3;
   is($a .= <A>, 3, '#21628 - $a .= <A> , A eof');
   close A; $a = 4;
   is($a .= <A>, 4, '#21628 - $a .= <A> , A closed');
-  unlink "a";
 }
 
 # 82 is chosen to exceed the length for sv_grow in do_readline (80)
-foreach my $k ('k', 'k'x82) {
+foreach my $k (1, 82) {
   my $result
-    = runperl (switches => '-l', stdin => '', stderr => 1,
-              prog => "%a = qw($k v); \$_ = <> foreach keys %a; print qw(end)",
+    = runperl (stdin => '', stderr => 1,
+              prog => "\$x = q(k) x $k; \$a{\$x} = qw(v); \$_ = <> foreach keys %a; print qw(end)",
              );
-  is ($result, "end", '[perl #21614] for length ' . length $k);
+  $result =~ s/\n\z// if $^O eq 'VMS';
+  is ($result, "end", '[perl #21614] for length ' . length('k' x $k));
 }
+
+
+foreach my $k (1, 21) {
+  my $result
+    = runperl (stdin => ' rules', stderr => 1,
+              prog => "\$x = q(perl) x $k; \$a{\$x} = q(v); foreach (keys %a) {\$_ .= <>; print}",
+             );
+  $result =~ s/\n\z// if $^O eq 'VMS';
+  is ($result, ('perl' x $k) . " rules", 'rcatline to shared sv for length ' . length('perl' x $k));
+}
+
+foreach my $l (1, 82) {
+  my $k = $l;
+  $k = 'k' x $k;
+  my $copy = $k;
+  $k = <DATA>;
+  is ($k, "moo\n", 'catline to COW sv for length ' . length $copy);
+}
+
+
+foreach my $l (1, 21) {
+  my $k = $l;
+  $k = 'perl' x $k;
+  my $perl = $k;
+  $k .= <DATA>;
+  is ($k, "$perl rules\n", 'rcatline to COW sv for length ' . length $perl);
+}
+
+use strict;
+use File::Spec;
+
+open F, File::Spec->curdir and sysread F, $_, 1;
+my $err = $! + 0;
+close F;
+
+SKIP: {
+  skip "you can read directories as plain files", 2 unless( $err );
+
+  $!=0;
+  open F, File::Spec->curdir and $_=<F>;
+  ok( $!==$err && !defined($_) => 'readline( DIRECTORY )' );
+  close F;
+
+  $!=0;
+  { local $/;
+    open F, File::Spec->curdir and $_=<F>;
+    ok( $!==$err && !defined($_) => 'readline( DIRECTORY ) slurp mode' );
+    close F;
+  }
+}
+
+fresh_perl_is('BEGIN{<>}', '',
+              { switches => ['-w'], stdin => '', stderr => 1 },
+              'No ARGVOUT used only once warning');
+
+fresh_perl_is('print readline', 'foo',
+              { switches => ['-w'], stdin => 'foo', stderr => 1 },
+              'readline() defaults to *ARGV');
+
+my $obj = bless [];
+$obj .= <DATA>;
+like($obj, qr/main=ARRAY.*world/, 'rcatline and refs');
+
+# bug #38631
+require Tie::Scalar;
+tie our $one, 'Tie::StdScalar', "A: ";
+tie our $two, 'Tie::StdScalar', "B: ";
+my $junk = $one;
+$one .= <DATA>;
+$two .= <DATA>;
+is( $one, "A: One\n", "rcatline works with tied scalars" );
+is( $two, "B: Two\n", "rcatline works with tied scalars" );
+
+__DATA__
+moo
+moo
+ rules
+ rules
+world
+One
+Two