Tests: map regex capture in rewrite replacement.

map_capture_rewrite.t

@@ -0,0 +1,91 @@
+#!/usr/bin/perl
+
+# (C) Nginx, Inc.
+
+# Tests for map variable with regex capture used in rewrite
+# replacement.  When a map variable whose value contains a $1
+# reference from a map regex pattern is used in a rewrite
+# replacement, the rewrite's $1 must expand using the rewrite
+# regex capture, not the map regex capture (ticket #357).
+
+###############################################################################
+
+use warnings;
+use strict;
+
+use Test::More;
+
+BEGIN { use FindBin; chdir($FindBin::Bin); }
+
+use lib 'lib';
+use Test::Nginx;
+
+###############################################################################
+
+select STDERR; $| = 1;
+select STDOUT; $| = 1;
+
+my $t = Test::Nginx->new()->has(qw/http map rewrite/)->plan(6);
+
+$t->write_file_expand('nginx.conf', <<'EOF');
+
+%%TEST_GLOBALS%%
+
+daemon off;
+
+events {
+}
+
+http {
+    %%TEST_GLOBALS_HTTP%%
+
+    map $http_test_lang $lang {
+        default rm;
+        ~^(de|fr)$  $1;
+    }
+
+    server {
+        listen       127.0.0.1:8080;
+        server_name  localhost;
+
+        rewrite ^(/test)$ $1/$lang/;
+
+        location / {
+            return 200 "ok\n";
+        }
+    }
+}
+
+EOF
+
+$t->run();
+
+###############################################################################
+
+like(http_get_with_headers('GET /test', 'Test-Lang: en'), qr/^ok$/m,
+     'default map value, no map regex');
+like(http_get_with_headers('GET /test', 'Test-Lang: it'), qr/^ok$/m,
+     'literal map value, no map regex');
+like(http_get_with_headers('GET /test', 'Test-Lang: de'), qr/^ok$/m,
+     'map regex capture $1, rewrite $1 is not overwritten - de');
+like(http_get_with_headers('GET /test', 'Test-Lang: fr'), qr/^ok$/m,
+     'map regex capture $1, rewrite $1 is not overwritten - fr');
+like(http_get('/'), qr/^ok$/m,
+     'no rewrite on different URI');
+like(http_get_with_headers('GET /test', 'Test-Lang: es'), qr/^ok$/m,
+     'default value with map regex non-match');
+
+
+sub http_get_with_headers {
+    my ($url, $header) = @_;
+    my $r = http(<<"EOF");
+$url HTTP/1.0
+Host: localhost
+Connection: close
+$header
+
+EOF
+    return $r;
+}
+
+###############################################################################