new file mode 100644
--- /dev/null
+++ b/http_request.t
@@ -0,0 +1,190 @@
+#!/usr/bin/perl
+
+# (C) Maxim Dounin
+
+# Tests for basic HTTP request parsing.
+
+###############################################################################
+
+use warnings;
+use strict;
+
+use Test::More;
+
+use Socket qw/ CRLF CR LF /;
+
+BEGIN { use FindBin; chdir($FindBin::Bin); }
+
+use lib 'lib';
+use Test::Nginx;
+
+###############################################################################
+
+select STDERR; $| = 1;
+select STDOUT; $| = 1;
+
+my $t = Test::Nginx->new()->has(qw/http rewrite/)->plan(40)
+	->write_file_expand('nginx.conf', <<'EOF');
+
+%%TEST_GLOBALS%%
+
+daemon off;
+
+events {
+}
+
+http {
+    %%TEST_GLOBALS_HTTP%%
+
+    server {
+        listen 127.0.0.1:8080;
+        return 200 ok\n;
+    }
+}
+
+EOF
+
+$t->run();
+
+###############################################################################
+
+# some basic HTTP/0.9, HTTP/1.0, and HTTP/1.1 requests
+
+like(http(
+	"GET /" . CRLF
+), qr/^ok/s, 'http/0.9 request');
+
+like(http(
+	"GET / HTTP/1.0" . CRLF .
+	CRLF
+), qr/ 200 /, 'http/1.0 request');
+
+like(http(
+	"GET / HTTP/1.0" . CRLF .
+	"Host: foo" . CRLF .
+	CRLF
+), qr/ 200 /, 'http/1.0 request with host');
+
+like(http(
+	"GET / HTTP/1.1" . CRLF .
+	"Host: foo" . CRLF .
+	"Connection: close" . CRLF .
+	CRLF
+), qr/ 200 /, 'http/1.1 request');
+
+like(http(
+	"GET / HTTP/1.1" . CRLF .
+	"Connection: close" . CRLF .
+	CRLF
+), qr/ 400 /, 'http/1.1 request rejected without host');
+
+like(http(
+	"GET http://foo/ HTTP/1.1" . CRLF .
+	"Host: foo" . CRLF .
+	"Connection: close" . CRLF .
+	CRLF
+), qr/ 200 /, 'http/1.1 request absolute form');
+
+# ensure an empty line is ignored before the request
+
+like(http(CRLF . "GET / HTTP/1.0" . CRLF . CRLF), qr/ 200 /,
+	'empty line ignored');
+like(http(LF . "GET / HTTP/1.0" . CRLF . CRLF), qr/ 200 /,
+	'empty line with just LF ignored');
+
+TODO: {
+local $TODO = 'not yet' unless $t->has_version('1.25.5');
+
+like(http(CR . "GET / HTTP/1.0" . CRLF . CRLF), qr/ 400 /,
+	'empty line with just CR rejected');
+like(http(CRLF . CRLF . "GET / HTTP/1.0" . CRLF . CRLF), qr/ 400 /,
+	'multiple empty lines rejected');
+like(http(LF . LF . "GET / HTTP/1.0" . CRLF . CRLF), qr/ 400 /,
+	'multiple LFs rejected');
+like(http(CR . CR . "GET / HTTP/1.0" . CRLF . CRLF), qr/ 400 /,
+	'multiple CRs rejected');
+
+}
+
+# method
+
+like(http("FOO / HTTP/1.0" . CRLF . CRLF), qr/ 200 /, 'method');
+like(http("FOO-BAR / HTTP/1.0" . CRLF . CRLF), qr/ 200 /,
+	'method with dash');
+like(http("FOO_BAR / HTTP/1.0" . CRLF . CRLF), qr/ 200 /,
+	'method with underscore');
+like(http("FOO.BAR / HTTP/1.0" . CRLF . CRLF), qr/ 400 /,
+	'method with dot rejected');
+like(http("get / HTTP/1.0" . CRLF . CRLF), qr/ 400 /,
+	'method in lowercase rejected');
+
+# URI
+
+like(http("GET /foo12.bar HTTP/1.0" . CRLF . CRLF), qr/ 200 /, 'uri');
+like(http("GET /control\x0d HTTP/1.0" . CRLF . CRLF), qr/ 400 /,
+	'uri with CR');
+like(http("GET /control\x01 HTTP/1.0" . CRLF . CRLF), qr/ 400 /,
+	'uri with control');
+like(http("GET /control\t HTTP/1.0" . CRLF . CRLF), qr/ 400 /,
+	'uri with tab');
+
+# version
+
+like(http(
+	"GET / HTTP/1.2" . CRLF .
+	"Host: foo" . CRLF .
+	"Connection: close" . CRLF .
+	CRLF
+), qr/ 200 /, 'version 1.2');
+
+like(http(
+	"GET / HTTP/1.99" . CRLF .
+	"Host: foo" . CRLF .
+	"Connection: close" . CRLF .
+	CRLF
+), qr/ 200 /, 'version 1.99');
+
+like(http("GET / HTTP/1.000" . CRLF . CRLF), qr/ 200 /,
+	'version leading zeros');
+like(http("GET / HTTP/2.0" . CRLF . CRLF), qr/ 505 /,
+	'version too high rejected');
+like(http("GET / HTTP/1.x" . CRLF . CRLF), qr/ 400 /,
+	'version non-numeric rejected');
+like(http("GET / HTTP/1.100" . CRLF . CRLF), qr/ 400 /,
+	'version too high minor rejected');
+
+like(http("GET / http/1.0" . CRLF . CRLF), qr/ 400 /,
+	'lowercase protocol rejected');
+
+# spaces in request line
+
+like(http("GET / HTTP/1.0  " . CRLF . CRLF), qr/ 200 /,
+	'spaces after version');
+like(http("GET /   HTTP/1.0" . CRLF . CRLF), qr/ 200 /,
+	'spaces after uri');
+like(http("GET   / HTTP/1.0" . CRLF . CRLF), qr/ 200 /,
+	'spaces before uri');
+
+like(http("GET / HTTP/ 1.0" . CRLF . CRLF), qr/ 400 /,
+	'spaces before version rejected');
+like(http("GET / HTTP /1.0" . CRLF . CRLF), qr/ 400 /,
+	'spaces after protocol rejected');
+like(http("GET / HT TP/1.0" . CRLF . CRLF), qr/ 400 /,
+	'spaces within protocol rejected');
+like(http(" GET / HTTP/ 1.0" . CRLF . CRLF), qr/ 400 /,
+	'spaces before method rejected');
+
+# headers
+
+like(http("GET / HTTP/1.0" . CRLF . "Foo: bar" . CRLF . CRLF), qr/ 200 /,
+	'header');
+like(http("GET / HTTP/1.0" . CRLF . "Foo : bar" . CRLF . CRLF), qr/ 400 /,
+	'header with space rejected');
+like(http("GET / HTTP/1.0" . CRLF . " Foo: bar" . CRLF . CRLF), qr/ 400 /,
+	'header with leading space rejected');
+like(http("GET / HTTP/1.0" . CRLF . "Foo\x01: bar" . CRLF . CRLF), qr/ 400 /,
+	'header with control rejected');
+like(http("GET / HTTP/1.0" . CRLF . "Foo\t: bar" . CRLF . CRLF), qr/ 400 /,
+	'header with tab rejected');
+
+###############################################################################