From: Dmitry Volyntsev <xeioex@nginx.com>
Date: Wed, 19 Feb 2025 06:53:54 +0000 (-0800)
Subject: Tests: splitting js_periodic tests into multiple files.
X-Git-Tag: 0.8.10~28
X-Git-Url: http://www.kaiwu.me/postgresql/commit/static/gitweb.js?a=commitdiff_plain;h=89634204c4b12f17bbec826768d0d4e9dc5fae6c;p=njs.git

Tests: splitting js_periodic tests into multiple files.
---

diff --git a/nginx/t/js_periodic.t b/nginx/t/js_periodic.t
index 63afe379..d6868935 100644
--- a/nginx/t/js_periodic.t
+++ b/nginx/t/js_periodic.t
@@ -59,46 +59,18 @@ http {
             js_periodic test.tick interval=30ms jitter=1ms;
             js_periodic test.timer interval=1s worker_affinity=all;
             js_periodic test.overrun interval=30ms;
-            js_periodic test.file interval=1s;
-            js_periodic test.fetch interval=40ms;
-            js_periodic test.multiple_fetches interval=1s;
             js_periodic test.affinity interval=50ms worker_affinity=0101;
             js_periodic test.vars interval=10s;
 
-            js_periodic test.fetch_exception interval=1s;
             js_periodic test.tick_exception interval=1s;
             js_periodic test.timer_exception interval=1s;
             js_periodic test.timeout_exception interval=30ms;
         }
 
-        location /engine {
-            js_content test.engine;
-        }
-
-        location /fetch_ok {
-            return 200 'ok';
-        }
-
-        location /fetch_foo {
-            return 200 'foo';
-        }
-
         location /test_affinity {
             js_content test.test_affinity;
         }
 
-        location /test_fetch {
-            js_content test.test_fetch;
-        }
-
-        location /test_file {
-            js_content test.test_file;
-        }
-
-        location /test_multiple_fetches {
-            js_content test.test_multiple_fetches;
-        }
-
         location /test_tick {
             js_content test.test_tick;
         }
@@ -119,51 +91,15 @@ http {
 
 EOF
 
-my $p0 = port(8080);
-
 $t->write_file('test.js', <<EOF);
-    import fs from 'fs';
-
-    function engine(r) {
-        r.return(200, njs.engine);
-    }
-
     function affinity() {
         ngx.shared.workers.set(ngx.worker_id, 1);
     }
 
-    async function fetch() {
-        let reply = await ngx.fetch('http://127.0.0.1:$p0/fetch_ok');
-        let body = await reply.text();
-
-        let v = ngx.shared.strings.get('fetch') || '';
-        ngx.shared.strings.set('fetch', v + body);
-    }
-
     function js_set() {
         return 'JS-SET';
     }
 
-    async function multiple_fetches() {
-        let reply = await ngx.fetch('http://127.0.0.1:$p0/fetch_ok');
-        let reply2 = await ngx.fetch('http://127.0.0.1:$p0/fetch_foo');
-        let body = await reply.text();
-        let body2 = await reply2.text();
-
-        ngx.shared.strings.set('multiple_fetches', body + '\@' + body2);
-    }
-
-    async function fetch_exception() {
-        let reply = await ngx.fetch('garbage');
-     }
-
-    async function file() {
-        let fh = await fs.promises.open(ngx.conf_prefix + 'file', 'a+');
-
-        await fh.write('abc');
-        await fh.close();
-    }
-
     async function overrun() {
         setTimeout(() => {}, 100000);
     }
@@ -214,20 +150,6 @@ $t->write_file('test.js', <<EOF);
         r.return(200, `[\${ngx.shared.workers.keys().toSorted()}]`);
     }
 
-    function test_fetch(r) {
-        r.return(200, ngx.shared.strings.get('fetch').startsWith('okok'));
-    }
-
-    function test_file(r) {
-        r.return(200,
-             fs.readFileSync(ngx.conf_prefix + 'file').toString()  == 'abc');
-    }
-
-    function test_multiple_fetches(r) {
-        r.return(200, ngx.shared.strings.get('multiple_fetches')
-                                                        .startsWith('ok\@foo'));
-    }
-
     function test_tick(r) {
         r.return(200, ngx.shared.nums.get('tick') >= 3);
     }
@@ -244,19 +166,14 @@ $t->write_file('test.js', <<EOF);
         r.return(200, ngx.shared.strings.get('vars'));
     }
 
-    export default { affinity, fetch, fetch_exception, file, js_set,
-                     multiple_fetches, overrun, vars, test_affinity, test_fetch,
-                     test_file, test_multiple_fetches, test_tick,
+    export default { affinity, js_set, overrun, vars, test_affinity, test_tick,
                      test_timeout_exception, test_timer, test_vars, tick,
-                     tick_exception, timer, timer_exception,
-                     timeout_exception, engine };
+                     tick_exception, timer, timer_exception, timeout_exception };
 EOF
 
 $t->try_run('no js_periodic');
 
-plan(skip_all => 'not yet') if http_get('/engine') =~ /QuickJS$/m;
-
-$t->plan(9);
+$t->plan(6);
 
 ###############################################################################
 
@@ -265,9 +182,6 @@ select undef, undef, undef, 0.1;
 like(http_get('/test_affinity'), qr/\[1,3]/, 'affinity test');
 like(http_get('/test_tick'), qr/true/, '3x tick test');
 like(http_get('/test_timer'), qr/true/, 'timer test');
-like(http_get('/test_file'), qr/true/, 'file test');
-like(http_get('/test_fetch'), qr/true/, 'periodic fetch test');
-like(http_get('/test_multiple_fetches'), qr/true/, 'multiple fetch test');
 
 like(http_get('/test_timeout_exception'), qr/true/, 'timeout exception test');
 like(http_get('/test_vars'), qr/JS-VAR\|JS-SET\|MAP-VAR/, 'vars test');
diff --git a/nginx/t/js_periodic_fetch.t b/nginx/t/js_periodic_fetch.t
new file mode 100644
index 00000000..d7bcfb76
--- /dev/null
+++ b/nginx/t/js_periodic_fetch.t
@@ -0,0 +1,138 @@
+#!/usr/bin/perl
+
+# (C) Dmitry Volyntsev
+# (C) Nginx, Inc.
+
+# Tests for js_periodic directive.
+
+###############################################################################
+
+use warnings;
+use strict;
+
+use Test::More;
+use Socket qw/ CRLF /;
+
+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 rewrite/)
+	->write_file_expand('nginx.conf', <<'EOF');
+
+%%TEST_GLOBALS%%
+
+daemon off;
+worker_processes 4;
+
+events {
+}
+
+worker_shutdown_timeout 100ms;
+
+http {
+    %%TEST_GLOBALS_HTTP%%
+
+    js_import test.js;
+
+    js_shared_dict_zone zone=strings:32k;
+
+    server {
+        listen       127.0.0.1:8080;
+        server_name  localhost;
+
+        location @periodic {
+            js_periodic test.fetch interval=40ms;
+            js_periodic test.multiple_fetches interval=1s;
+
+            js_periodic test.fetch_exception interval=1s;
+        }
+
+        location /engine {
+            js_content test.engine;
+        }
+
+        location /fetch_ok {
+            return 200 'ok';
+        }
+
+        location /fetch_foo {
+            return 200 'foo';
+        }
+
+        location /test_fetch {
+            js_content test.test_fetch;
+        }
+
+        location /test_multiple_fetches {
+            js_content test.test_multiple_fetches;
+        }
+    }
+}
+
+EOF
+
+my $p0 = port(8080);
+
+$t->write_file('test.js', <<EOF);
+    function engine(r) {
+        r.return(200, njs.engine);
+    }
+
+    async function fetch() {
+        let reply = await ngx.fetch('http://127.0.0.1:$p0/fetch_ok');
+        let body = await reply.text();
+
+        let v = ngx.shared.strings.get('fetch') || '';
+        ngx.shared.strings.set('fetch', v + body);
+    }
+
+    async function multiple_fetches() {
+        let reply = await ngx.fetch('http://127.0.0.1:$p0/fetch_ok');
+        let reply2 = await ngx.fetch('http://127.0.0.1:$p0/fetch_foo');
+        let body = await reply.text();
+        let body2 = await reply2.text();
+
+        ngx.shared.strings.set('multiple_fetches', body + '\@' + body2);
+    }
+
+    async function fetch_exception() {
+        let reply = await ngx.fetch('garbage');
+     }
+
+    function test_fetch(r) {
+        r.return(200, ngx.shared.strings.get('fetch').startsWith('okok'));
+    }
+
+    function test_multiple_fetches(r) {
+        r.return(200, ngx.shared.strings.get('multiple_fetches')
+                                                        .startsWith('ok\@foo'));
+    }
+
+    export default { fetch, fetch_exception, multiple_fetches, test_fetch,
+                     test_multiple_fetches, engine };
+EOF
+
+$t->try_run('no js_periodic with fetch');
+
+plan(skip_all => 'not yet') if http_get('/engine') =~ /QuickJS$/m;
+
+$t->plan(3);
+
+###############################################################################
+
+select undef, undef, undef, 0.1;
+
+like(http_get('/test_fetch'), qr/true/, 'periodic fetch test');
+like(http_get('/test_multiple_fetches'), qr/true/, 'multiple fetch test');
+
+$t->stop();
+
+unlike($t->read_file('error.log'), qr/\[error\].*should not be seen/,
+	'check for not discadred events');
diff --git a/nginx/t/js_periodic_file.t b/nginx/t/js_periodic_file.t
new file mode 100644
index 00000000..e8eb3070
--- /dev/null
+++ b/nginx/t/js_periodic_file.t
@@ -0,0 +1,91 @@
+#!/usr/bin/perl
+
+# (C) Dmitry Volyntsev
+# (C) Nginx, Inc.
+
+# Tests for js_periodic directive.
+
+###############################################################################
+
+use warnings;
+use strict;
+
+use Test::More;
+use Socket qw/ CRLF /;
+
+BEGIN { use FindBin; chdir($FindBin::Bin); }
+
+use lib 'lib';
+use Test::Nginx;
+
+###############################################################################
+
+select STDERR; $| = 1;
+select STDOUT; $| = 1;
+
+my $t = Test::Nginx->new()->has(qw/http rewrite/)
+	->write_file_expand('nginx.conf', <<'EOF');
+
+%%TEST_GLOBALS%%
+
+daemon off;
+worker_processes 4;
+
+events {
+}
+
+worker_shutdown_timeout 100ms;
+
+http {
+    %%TEST_GLOBALS_HTTP%%
+
+    js_import test.js;
+
+    server {
+        listen       127.0.0.1:8080;
+        server_name  localhost;
+
+        location @periodic {
+            js_periodic test.file interval=1s;
+        }
+
+        location /test_file {
+            js_content test.test_file;
+        }
+    }
+}
+
+EOF
+
+$t->write_file('test.js', <<EOF);
+    import fs from 'fs';
+
+    async function file() {
+        let fh = await fs.promises.open(ngx.conf_prefix + 'file', 'a+');
+
+        await fh.write('abc');
+        await fh.close();
+    }
+
+    function test_file(r) {
+        r.return(200,
+             fs.readFileSync(ngx.conf_prefix + 'file').toString()  == 'abc');
+    }
+
+    export default { file, test_file };
+EOF
+
+$t->try_run('no js_periodic with fs support');
+
+$t->plan(2);
+
+###############################################################################
+
+select undef, undef, undef, 0.1;
+
+like(http_get('/test_file'), qr/true/, 'file test');
+
+$t->stop();
+
+unlike($t->read_file('error.log'), qr/\[error\].*should not be seen/,
+	'check for not discadred events');
diff --git a/nginx/t/stream_js_periodic.t b/nginx/t/stream_js_periodic.t
index 4b9e319b..ac64045e 100644
--- a/nginx/t/stream_js_periodic.t
+++ b/nginx/t/stream_js_periodic.t
@@ -58,13 +58,9 @@ stream {
         js_periodic test.tick interval=30ms jitter=1ms;
         js_periodic test.timer interval=1s worker_affinity=all;
         js_periodic test.overrun interval=30ms;
-        js_periodic test.file interval=1s;
-        js_periodic test.fetch interval=40ms;
-        js_periodic test.multiple_fetches interval=1s;
         js_periodic test.affinity interval=50ms worker_affinity=0101;
         js_periodic test.vars interval=10s;
 
-        js_periodic test.fetch_exception interval=1s;
         js_periodic test.tick_exception interval=1s;
         js_periodic test.timer_exception interval=1s;
         js_periodic test.timeout_exception interval=30ms;
@@ -75,76 +71,17 @@ stream {
     }
 }
 
-http {
-    %%TEST_GLOBALS_HTTP%%
-
-    js_import test.js;
-
-    server {
-        listen       127.0.0.1:8080;
-        server_name  localhost;
-
-        location /engine {
-            js_content test.engine;
-        }
-
-        location /fetch_ok {
-            return 200 'ok';
-        }
-
-        location /fetch_foo {
-            return 200 'foo';
-        }
-    }
-}
-
 EOF
 
-my $p1 = port(8080);
-
 $t->write_file('test.js', <<EOF);
-    import fs from 'fs';
-
-    function engine(r) {
-        r.return(200, njs.engine);
-    }
-
     function affinity() {
         ngx.shared.workers.set(ngx.worker_id, 1);
     }
 
-    async function fetch() {
-        let reply = await ngx.fetch('http://127.0.0.1:$p1/fetch_ok');
-        let body = await reply.text();
-
-        let v = ngx.shared.strings.get('fetch') || '';
-        ngx.shared.strings.set('fetch', v + body);
-    }
-
-    async function fetch_exception() {
-        let reply = await ngx.fetch('garbage');
-     }
-
     function js_set() {
         return 'JS-SET';
     }
 
-    async function multiple_fetches() {
-        let reply = await ngx.fetch('http://127.0.0.1:$p1/fetch_ok');
-        let reply2 = await ngx.fetch('http://127.0.0.1:$p1/fetch_foo');
-        let body = await reply.text();
-        let body2 = await reply2.text();
-
-        ngx.shared.strings.set('multiple_fetches', body + '\@' + body2);
-    }
-
-    async function file() {
-        let fh = await fs.promises.open(ngx.conf_prefix + 'file', 'a+');
-
-        await fh.write('abc');
-        await fh.close();
-    }
-
     async function overrun() {
         setTimeout(() => {}, 100000);
     }
@@ -202,34 +139,6 @@ $t->write_file('test.js', <<EOF);
                         return;
                     }
 
-                    break;
-                case 'fetch':
-                    if (ngx.shared.strings.get('fetch').startsWith('okok')) {
-                        s.done();
-                        return;
-                    }
-
-                    break;
-
-                case 'multiple_fetches':
-                    if (ngx.shared.strings.get('multiple_fetches')
-                        .startsWith('ok\@foo'))
-                    {
-                        s.done();
-                        return;
-                    }
-
-                    break;
-
-                case 'file':
-                    let file_data = fs.readFileSync(ngx.conf_prefix + 'file')
-                                                                    .toString();
-
-                    if (file_data == 'abc') {
-                        s.done();
-                        return;
-                    }
-
                     break;
 
                 case 'tick':
@@ -274,15 +183,13 @@ $t->write_file('test.js', <<EOF);
         });
     }
 
-    export default { affinity, fetch, fetch_exception, js_set, multiple_fetches,
-                     file, overrun, test, tick, tick_exception, timer,
-                     timer_exception, timeout_exception, vars, engine };
+    export default { affinity, js_set,  overrun, test, tick, tick_exception,
+                     timer, timer_exception, timeout_exception, vars };
 EOF
 
 $t->run_daemon(\&stream_daemon, port(8090));
 $t->try_run('no js_periodic');
-plan(skip_all => 'not yet') if http_get('/engine') =~ /QuickJS$/m;
-$t->plan(9);
+$t->plan(6);
 $t->waitforsocket('127.0.0.1:' . port(8090));
 
 ###############################################################################
@@ -293,10 +200,6 @@ is(stream('127.0.0.1:' . port(8081))->io('affinity'), 'affinity',
 	'affinity test');
 is(stream('127.0.0.1:' . port(8081))->io('tick'), 'tick', '3x tick test');
 is(stream('127.0.0.1:' . port(8081))->io('timer'), 'timer', 'timer test');
-is(stream('127.0.0.1:' . port(8081))->io('file'), 'file', 'file test');
-is(stream('127.0.0.1:' . port(8081))->io('fetch'), 'fetch', 'fetch test');
-is(stream('127.0.0.1:' . port(8081))->io('multiple_fetches'),
-	'multiple_fetches', 'muliple fetches test');
 is(stream('127.0.0.1:' . port(8081))->io('timeout_exception'),
 	'timeout_exception', 'timeout exception test');
 is(stream('127.0.0.1:' . port(8081))->io('vars'), 'vars', 'vars test');
diff --git a/nginx/t/stream_js_periodic_fetch.t b/nginx/t/stream_js_periodic_fetch.t
new file mode 100644
index 00000000..e88d69d5
--- /dev/null
+++ b/nginx/t/stream_js_periodic_fetch.t
@@ -0,0 +1,201 @@
+#!/usr/bin/perl
+
+# (C) Dmitry Volyntsev
+# (C) Nginx, Inc.
+
+# Tests for stream njs module, js_periodic directive.
+
+###############################################################################
+
+use warnings;
+use strict;
+
+use Test::More;
+use Socket qw/ CRLF /;
+
+BEGIN { use FindBin; chdir($FindBin::Bin); }
+
+use lib 'lib';
+use Test::Nginx;
+use Test::Nginx::Stream qw/ stream /;
+
+###############################################################################
+
+select STDERR; $| = 1;
+select STDOUT; $| = 1;
+
+my $t = Test::Nginx->new()->has(qw/http rewrite stream/)
+	->write_file_expand('nginx.conf', <<'EOF');
+
+%%TEST_GLOBALS%%
+
+daemon off;
+worker_processes 4;
+
+events {
+}
+
+worker_shutdown_timeout 100ms;
+
+stream {
+    %%TEST_GLOBALS_STREAM%%
+
+    js_import test.js;
+
+    js_shared_dict_zone zone=strings:32k;
+
+    server {
+        listen       127.0.0.1:8081;
+
+        js_periodic test.fetch interval=40ms;
+        js_periodic test.multiple_fetches interval=1s;
+
+        js_periodic test.fetch_exception interval=1s;
+
+        js_preread test.test;
+
+        proxy_pass 127.0.0.1:8090;
+    }
+}
+
+http {
+    %%TEST_GLOBALS_HTTP%%
+
+    js_import test.js;
+
+    server {
+        listen       127.0.0.1:8080;
+        server_name  localhost;
+
+        location /engine {
+            js_content test.engine;
+        }
+
+        location /fetch_ok {
+            return 200 'ok';
+        }
+
+        location /fetch_foo {
+            return 200 'foo';
+        }
+    }
+}
+
+EOF
+
+my $p1 = port(8080);
+
+$t->write_file('test.js', <<EOF);
+    function engine(r) {
+        r.return(200, njs.engine);
+    }
+
+    async function fetch() {
+        let reply = await ngx.fetch('http://127.0.0.1:$p1/fetch_ok');
+        let body = await reply.text();
+
+        let v = ngx.shared.strings.get('fetch') || '';
+        ngx.shared.strings.set('fetch', v + body);
+    }
+
+    async function fetch_exception() {
+        let reply = await ngx.fetch('garbage');
+     }
+
+    async function multiple_fetches() {
+        let reply = await ngx.fetch('http://127.0.0.1:$p1/fetch_ok');
+        let reply2 = await ngx.fetch('http://127.0.0.1:$p1/fetch_foo');
+        let body = await reply.text();
+        let body2 = await reply2.text();
+
+        ngx.shared.strings.set('multiple_fetches', body + '\@' + body2);
+    }
+
+    function test(s) {
+        s.on('upload', function (data) {
+            if (data.length > 0) {
+                switch (data) {
+                case 'fetch':
+                    if (ngx.shared.strings.get('fetch').startsWith('okok')) {
+                        s.done();
+                        return;
+                    }
+
+                    break;
+
+                case 'multiple_fetches':
+                    if (ngx.shared.strings.get('multiple_fetches')
+                        .startsWith('ok\@foo'))
+                    {
+                        s.done();
+                        return;
+                    }
+
+                    break;
+
+                default:
+                    throw new Error(`Unknown test "\${data}"`);
+                }
+
+                throw new Error(`Test "\${data}" failed`);
+            }
+        });
+    }
+
+    export default { engine, fetch, fetch_exception, test, multiple_fetches };
+EOF
+
+$t->run_daemon(\&stream_daemon, port(8090));
+$t->try_run('no js_periodic with fetch');
+plan(skip_all => 'not yet') if http_get('/engine') =~ /QuickJS$/m;
+$t->plan(3);
+$t->waitforsocket('127.0.0.1:' . port(8090));
+
+###############################################################################
+
+select undef, undef, undef, 0.2;
+
+is(stream('127.0.0.1:' . port(8081))->io('fetch'), 'fetch', 'fetch test');
+is(stream('127.0.0.1:' . port(8081))->io('multiple_fetches'),
+	'multiple_fetches', 'muliple fetches test');
+
+$t->stop();
+
+unlike($t->read_file('error.log'), qr/\[error\].*should not be seen/,
+	'check for not discadred events');
+
+###############################################################################
+
+sub stream_daemon {
+	my $server = IO::Socket::INET->new(
+		Proto => 'tcp',
+		LocalAddr => '127.0.0.1:' . port(8090),
+		Listen => 5,
+		Reuse => 1
+	)
+		or die "Can't create listening socket: $!\n";
+
+	local $SIG{PIPE} = 'IGNORE';
+
+	while (my $client = $server->accept()) {
+		$client->autoflush(1);
+
+		log2c("(new connection $client)");
+
+		$client->sysread(my $buffer, 65536) or next;
+
+		log2i("$client $buffer");
+
+		log2o("$client $buffer");
+
+		$client->syswrite($buffer);
+
+		close $client;
+	}
+}
+
+sub log2i { Test::Nginx::log_core('|| <<', @_); }
+sub log2o { Test::Nginx::log_core('|| >>', @_); }
+sub log2c { Test::Nginx::log_core('||', @_); }
+
+###############################################################################
diff --git a/nginx/t/stream_js_periodic_file.t b/nginx/t/stream_js_periodic_file.t
new file mode 100644
index 00000000..b41ce04c
--- /dev/null
+++ b/nginx/t/stream_js_periodic_file.t
@@ -0,0 +1,144 @@
+#!/usr/bin/perl
+
+# (C) Dmitry Volyntsev
+# (C) Nginx, Inc.
+
+# Tests for stream njs module, js_periodic directive.
+
+###############################################################################
+
+use warnings;
+use strict;
+
+use Test::More;
+use Socket qw/ CRLF /;
+
+BEGIN { use FindBin; chdir($FindBin::Bin); }
+
+use lib 'lib';
+use Test::Nginx;
+use Test::Nginx::Stream qw/ stream /;
+
+###############################################################################
+
+select STDERR; $| = 1;
+select STDOUT; $| = 1;
+
+my $t = Test::Nginx->new()->has(qw/http rewrite stream/)
+	->write_file_expand('nginx.conf', <<'EOF');
+
+%%TEST_GLOBALS%%
+
+daemon off;
+worker_processes 4;
+
+events {
+}
+
+worker_shutdown_timeout 100ms;
+
+stream {
+    %%TEST_GLOBALS_STREAM%%
+
+    js_import test.js;
+
+    server {
+        listen       127.0.0.1:8081;
+        js_periodic test.file interval=1s;
+
+        js_preread test.test;
+
+        proxy_pass 127.0.0.1:8090;
+    }
+}
+
+EOF
+
+$t->write_file('test.js', <<EOF);
+    import fs from 'fs';
+
+    async function file() {
+        let fh = await fs.promises.open(ngx.conf_prefix + 'file', 'a+');
+
+        await fh.write('abc');
+        await fh.close();
+    }
+
+    function test(s) {
+        s.on('upload', function (data) {
+            if (data.length > 0) {
+                switch (data) {
+                case 'file':
+                    let file_data = fs.readFileSync(ngx.conf_prefix + 'file')
+                                                                    .toString();
+
+                    if (file_data == 'abc') {
+                        s.done();
+                        return;
+                    }
+
+                    break;
+
+                default:
+                    throw new Error(`Unknown test "\${data}"`);
+                }
+
+                throw new Error(`Test "\${data}" failed`);
+            }
+        });
+    }
+
+    export default { file, test };
+EOF
+
+$t->run_daemon(\&stream_daemon, port(8090));
+$t->try_run('no js_periodic with fs support');
+$t->plan(2);
+$t->waitforsocket('127.0.0.1:' . port(8090));
+
+###############################################################################
+
+select undef, undef, undef, 0.2;
+
+is(stream('127.0.0.1:' . port(8081))->io('file'), 'file', 'file test');
+
+$t->stop();
+
+unlike($t->read_file('error.log'), qr/\[error\].*should not be seen/,
+	'check for not discadred events');
+
+###############################################################################
+
+sub stream_daemon {
+	my $server = IO::Socket::INET->new(
+		Proto => 'tcp',
+		LocalAddr => '127.0.0.1:' . port(8090),
+		Listen => 5,
+		Reuse => 1
+	)
+		or die "Can't create listening socket: $!\n";
+
+	local $SIG{PIPE} = 'IGNORE';
+
+	while (my $client = $server->accept()) {
+		$client->autoflush(1);
+
+		log2c("(new connection $client)");
+
+		$client->sysread(my $buffer, 65536) or next;
+
+		log2i("$client $buffer");
+
+		log2o("$client $buffer");
+
+		$client->syswrite($buffer);
+
+		close $client;
+	}
+}
+
+sub log2i { Test::Nginx::log_core('|| <<', @_); }
+sub log2o { Test::Nginx::log_core('|| >>', @_); }
+sub log2c { Test::Nginx::log_core('||', @_); }
+
+###############################################################################