--- /dev/null
+use strict;
+use HTTP::Headers::Util qw(split_header_words join_header_words);
+
+my $extra_tests = 2;
+
+my @s_tests = (
+
+ ["foo" => "foo"],
+ ["foo=bar" => "foo=bar"],
+ [" foo " => "foo"],
+ ["foo=" => 'foo=""'],
+ ["foo=bar bar=baz" => "foo=bar; bar=baz"],
+ ["foo=bar;bar=baz" => "foo=bar; bar=baz"],
+ ['foo bar baz' => "foo; bar; baz"],
+ ['foo="\"" bar="\\\\"' => 'foo="\""; bar="\\\\"'],
+ ['foo,,,bar' => 'foo, bar'],
+ ['foo=bar,bar=baz' => 'foo=bar, bar=baz'],
+
+ ['text/html; charset=iso-8859-1' =>
+ 'text/html; charset=iso-8859-1'],
+
+ ['foo="bar"; port="80,81"; discard, bar=baz' =>
+ 'foo=bar; port="80,81"; discard, bar=baz'],
+
+ ['Basic realm="\"foo\\\\bar\""' =>
+ 'Basic; realm="\"foo\\\\bar\""'],
+);
+
+print "1..", @s_tests + $extra_tests, "\n";
+
+my $testno = 1;
+
+print "split_header_words() tests\n";
+for (@s_tests) {
+ my($arg, $expect) = @$_;
+ my @arg = ref($arg) ? @$arg : $arg;
+
+ my $res = join_header_words(split_header_words(@arg));
+ if ($res ne $expect) {
+ print "\nUnexpected result: '$res'\n";
+ print " Expected: '$expect'\n";
+ print " when parsing '", join(", ", @arg), "'\n";
+ eval {
+ require Data::Dumper;
+ my @p = split_header_words(@arg);
+ print Data::Dumper::Dumper(\@p);
+ };
+ print "not ";
+ }
+ print "ok ", $testno++, "\n";
+}
+
+
+print "Extra tests\n";
+# some extra tests
+print "not " unless join_header_words("foo" => undef, "bar" => "baz")
+ eq "foo; bar=baz";
+print "ok ", $testno++, "\n";
+
+print "not " unless join_header_words() eq "";
+print "ok ", $testno++, "\n";