Spelling correction for consistency with pod/perldebguts.pod.

[perl5.git] / t / io / crlf.t

diff --git a/t/io/crlf.t b/t/io/crlf.t
index 7eb9a78..7fb4c1e 100644 (file)
--- a/t/io/crlf.t
+++ b/t/io/crlf.t
@@ -2,37 +2,45 @@
 
 BEGIN {
     chdir 't' if -d 't';
-    @INC = qw(. ../lib);
+    require "./test.pl";
+    set_up_inc('../lib');
+    require "./charset_tools.pl";
+    skip_all_without_perlio();
 }
 
 use Config;
 
-require "test.pl";
 
 my $file = tempfile();
+my $crlf = uni_to_native("\015\012");
+my $crcr = uni_to_native("\x0d\x0d");
 
-if (find PerlIO::Layer 'perlio') {
-    plan(tests => 16);
+my $ungetc_count = 8200;    # Somewhat over the likely buffer size
+
+{
+    plan(tests => 16 + 2 * $ungetc_count);
     ok(open(FOO,">:crlf",$file));
     ok(print FOO 'a'.((('a' x 14).qq{\n}) x 2000) || close(FOO));
     ok(open(FOO,"<:crlf",$file));
 
     my $text;
     { local $/; $text = <FOO> }
-    is(count_chars($text, "\015\012"), 0);
+    is(count_chars($text, $crlf), 0);
     is(count_chars($text, "\n"), 2000);
 
     binmode(FOO);
     seek(FOO,0,0);
     { local $/; $text = <FOO> }
-    is(count_chars($text, "\015\012"), 2000);
+    is(count_chars($text, $crlf), 2000);
 
     SKIP:
     {
-       skip_if_miniperl("miniperl can't rely on loading PerlIO::scalar");
-       skip("no PerlIO::scalar") unless $Config{extensions} =~ m!\bPerlIO/scalar\b!;
+       skip_if_miniperl("miniperl can't rely on loading PerlIO::scalar",
+                         2 * $ungetc_count + 1);
+       skip("no PerlIO::scalar", 2 * $ungetc_count + 1)
+           unless $Config{extensions} =~ m!\bPerlIO/scalar\b!;
        require PerlIO::scalar;
-       my $fcontents = join "", map {"$_\015\012"} "a".."zzz";
+       my $fcontents = join "", map {"$_$crlf"} "a".."zzz";
        open my $fh, "<:crlf", \$fcontents;
        local $/ = "xxx";
        local $_ = <$fh>;
@@ -41,6 +49,16 @@ if (find PerlIO::Layer 'perlio') {
        $/ = "\n";
        $s = <$fh>.<$fh>;
        is($s, "\nxxy\n");
+
+        for my $i (0 .. $ungetc_count - 1) {
+            my $j = $i % 256;
+            is($fh->ungetc($j), $j, "ungetc of $j returns itself");
+        }
+
+        for (my $i = $ungetc_count - 1; $i >= 0; $i--) {
+            my $j = $i % 256;
+            is(ord($fh->getc()), $j, "getc gets back $j");
+        }
     }
 
     ok(close(FOO));
@@ -65,14 +83,11 @@ if (find PerlIO::Layer 'perlio') {
            close FOO;
            print join(" ", "#", map { sprintf("%02x", $_) } unpack("C*", $foo)),
            "\n";
-           like($foo, qr/\x0d\x0a$/);
-           unlike($foo, qr/\x0d\x0d/);
+           like($foo, qr/$crlf$/);
+           unlike($foo, qr/$crcr/);
        }
     }
 }
-else {
-    skip_all("No perlio, so no :crlf");
-}
 
 sub count_chars {
     my($text, $chars) = @_;