new file mode 100644
--- /dev/null
+++ b/ssi_stub.t
@@ -0,0 +1,108 @@
+#!/usr/bin/perl
+
+# (C) Maxim Dounin
+
+# Tests for nginx ssi module, stub output.
+
+###############################################################################
+
+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 $t = Test::Nginx->new()->has(qw/http proxy ssi/)->plan(4)
+	->write_file_expand('nginx.conf', <<'EOF');
+
+%%TEST_GLOBALS%%
+
+daemon off;
+
+events {
+}
+
+http {
+    %%TEST_GLOBALS_HTTP%%
+
+    server {
+        listen       127.0.0.1:8080;
+        server_name  localhost;
+
+        location / {
+            ssi on;
+        }
+
+        location = /empty {
+            # static
+        }
+
+        location = /error404 {
+            # static 404
+        }
+
+        location = /proxy404 {
+            proxy_pass http://127.0.0.1:8081;
+            proxy_intercept_errors on;
+            error_page 404 /error404;
+        }
+
+        location = /not_empty {
+            proxy_pass http://127.0.0.1:8081;
+        }
+    }
+
+    server {
+        listen       127.0.0.1:8081;
+        server_name  localhost;
+    }
+}
+
+EOF
+
+$t->write_file('empty.html',
+	'<!--#block name="fallback" -->fallback<!--#endblock -->' .
+	':<!--#include virtual="/empty" stub="fallback" -->:');
+
+$t->write_file('error.html',
+	'<!--#block name="fallback" -->fallback<!--#endblock -->' .
+	':<!--#include virtual="/error404" stub="fallback" -->:');
+
+$t->write_file('proxy_error.html',
+	'<!--#block name="fallback" -->fallback<!--#endblock -->' .
+	':<!--#include virtual="/proxy404" stub="fallback" -->:');
+
+$t->write_file('postponed.html',
+	'<!--#block name="fallback" -->fallback<!--#endblock -->' .
+	':<!--#include virtual="/not_empty" -->' .
+	':<!--#include virtual="/empty" stub="fallback" -->:');
+
+$t->write_file('empty', '');
+$t->write_file('not_empty', 'not empty');
+
+$t->run();
+
+###############################################################################
+
+like(http_get('/empty.html'), qr/:fallback:/, 'ssi stub empty');
+like(http_get('/error.html'), qr/:fallback:/, 'ssi stub error');
+like(http_get('/proxy_error.html'), qr/:fallback:/, 'ssi stub proxied error');
+
+TODO: {
+local $TODO = 'not yet' unless $t->has_version('1.27.2');
+
+like(http_get('/postponed.html'), qr/:not empty:fallback:/s,
+	'ssi stub postponed');
+
+}
+
+###############################################################################