--- a/index.t
+++ b/index.t
@@ -22,7 +22,7 @@ use Test::Nginx;
 select STDERR; $| = 1;
 select STDOUT; $| = 1;
 
-my $t = Test::Nginx->new()->has(qw/http/)->plan(8)
+my $t = Test::Nginx->new()->has(qw/http/)->plan(14)
 	->write_file_expand('nginx.conf', <<'EOF');
 
 %%TEST_GLOBALS%%
@@ -77,6 +77,15 @@ http {
         location /var_redirect/ {
             index /$server_name.html;
         }
+
+        location /not_found/ {
+            error_log %%TESTDIR%%/log_not_found.log;
+
+            location /not_found/off/ {
+                error_log %%TESTDIR%%/off.log;
+                log_not_found off;
+            }
+        }
     }
 }
 
@@ -87,6 +96,10 @@ EOF
 $t->write_file('re.html', 'rebody');
 $t->write_file('localhost.html', 'varbody');
 
+my $d = $t->testdir();
+mkdir("$d/forbidden");
+chmod(0000, "$d/forbidden");
+
 $t->run();
 
 ###############################################################################
@@ -101,4 +114,14 @@ like(http_get('/va2/'), qr/X-URI: \/va2\
 like(http_get('/var_redirect/'), qr/X-URI: \/localhost.html.*varbody/ms,
 	'var with redirect');
 
+like(http_get('/not_found/'), qr/404 Not Found/, 'not found');
+like(http_get('/not_found/off/'), qr/404 Not Found/, 'not found log off');
+like(http_get('/forbidden/'), qr/403 Forbidden/, 'directory access denied');
+like(http_get('/index.html/'), qr/404 Not Found/, 'not a directory');
+
+$t->stop();
+
+like($t->read_file('log_not_found.log'), qr/error/, 'log_not_found');
+unlike($t->read_file('off.log'), qr/error/, 'log_not_found off');
+
 ###############################################################################