Tests: added proxy_max_temp_file_size tests.
diff --git a/h2_proxy_max_temp_file_size.t b/h2_proxy_max_temp_file_size.t
new file mode 100644
index 0000000..e784274
--- /dev/null
+++ b/h2_proxy_max_temp_file_size.t
@@ -0,0 +1,101 @@
+#!/usr/bin/perl
+
+# (C) Sergey Kandaurov
+# (C) Nginx, Inc.
+
+# Tests for http proxy module, proxy_max_temp_file_size directive.
+
+###############################################################################
+
+use warnings;
+use strict;
+
+use Test::More;
+
+BEGIN { use FindBin; chdir($FindBin::Bin); }
+
+use lib 'lib';
+use Test::Nginx;
+use Test::Nginx::HTTP2;
+
+###############################################################################
+
+select STDERR; $| = 1;
+select STDOUT; $| = 1;
+
+my $t = Test::Nginx->new()->has(qw/http http_v2 proxy/)->plan(4);
+
+$t->write_file_expand('nginx.conf', <<'EOF');
+
+%%TEST_GLOBALS%%
+
+daemon off;
+
+events {
+}
+
+http {
+ %%TEST_GLOBALS_HTTP%%
+
+ server {
+ listen 127.0.0.1:8080 http2;
+ server_name localhost;
+
+ proxy_buffer_size 4k;
+ proxy_buffers 8 4k;
+
+ location / {
+ proxy_max_temp_file_size 4k;
+ proxy_pass http://127.0.0.1:8081/;
+ }
+
+ location /off/ {
+ proxy_max_temp_file_size 0;
+ proxy_pass http://127.0.0.1:8081/;
+ }
+ }
+
+ server {
+ listen 127.0.0.1:8081;
+ server_name localhost;
+
+ location / { }
+ }
+}
+
+EOF
+
+$t->write_file('1', 'X' x (1024 * 1024));
+$t->run();
+
+###############################################################################
+
+# test that the response is wholly proxied when all event pipe buffers are full
+
+my $s = Test::Nginx::HTTP2->new();
+my $sid = $s->new_stream({ path => '/1' });
+
+select undef, undef, undef, 0.4;
+$s->h2_window(1024 * 1024, $sid);
+$s->h2_window(1024 * 1024);
+
+my $frames = $s->read(all => [{ sid => $sid, fin => 1 }]);
+my $body = join '', map { $_->{data} } grep { $_->{type} eq "DATA" } @$frames;
+like($body, qr/^X+$/m, 'no pipe bufs - body');
+is(length($body), 1024 * 1024, 'no pipe bufs - body length');
+
+# also with disabled proxy temp file
+
+$s = Test::Nginx::HTTP2->new();
+$sid = $s->new_stream({ path => '/off/1' });
+
+select undef, undef, undef, 0.4;
+$s->h2_window(1024 * 1024, $sid);
+$s->h2_window(1024 * 1024);
+
+$frames = $s->read(all => [{ sid => $sid, fin => 1 }]);
+$body = join '', map { $_->{data} } grep { $_->{type} eq "DATA" } @$frames;
+like($body, qr/^X+$/m, 'no temp file - body');
+is(length($body), 1024 * 1024, 'no temp file - body length');
+
+###############################################################################
diff --git a/proxy_max_temp_file_size.t b/proxy_max_temp_file_size.t
new file mode 100644
index 0000000..020c0f3
--- /dev/null
+++ b/proxy_max_temp_file_size.t
@@ -0,0 +1,84 @@
+#!/usr/bin/perl
+
+# (C) Sergey Kandaurov
+# (C) Nginx, Inc.
+
+# Tests for http proxy module, proxy_max_temp_file_size directive.
+
+###############################################################################
+
+use warnings;
+use strict;
+
+use Test::More;
+
+BEGIN { use FindBin; chdir($FindBin::Bin); }
+
+use lib 'lib';
+use Test::Nginx qw/ :DEFAULT http_content /;
+
+###############################################################################
+
+select STDERR; $| = 1;
+select STDOUT; $| = 1;
+
+my $t = Test::Nginx->new()->has(qw/http proxy/)->plan(4);
+
+$t->write_file_expand('nginx.conf', <<'EOF');
+
+%%TEST_GLOBALS%%
+
+daemon off;
+
+events {
+}
+
+http {
+ %%TEST_GLOBALS_HTTP%%
+
+ server {
+ listen 127.0.0.1:8080 sndbuf=32k;
+ server_name localhost;
+
+ proxy_buffer_size 4k;
+ proxy_buffers 8 4k;
+
+ location / {
+ proxy_max_temp_file_size 4k;
+ proxy_pass http://127.0.0.1:8081/;
+ }
+
+ location /off/ {
+ proxy_max_temp_file_size 0;
+ proxy_pass http://127.0.0.1:8081/;
+ }
+ }
+
+ server {
+ listen 127.0.0.1:8081;
+ server_name localhost;
+
+ location / { }
+ }
+}
+
+EOF
+
+$t->write_file('1', 'X' x (1024 * 1024));
+$t->run();
+
+###############################################################################
+
+# test that the response is wholly proxied when all event pipe buffers are full
+
+my $body = http_content(http_get('/1', sleep => 0.4));
+like($body, qr/^X+$/m, 'no pipe bufs - body');
+is(length($body), 1024 * 1024, 'no pipe bufs - body length');
+
+# also with disabled proxy temp file
+
+$body = http_content(http_get('/off/1', sleep => 0.4));
+like($body, qr/^X+$/m, 'no temp file - body');
+is(length($body), 1024 * 1024, 'no temp file - body length');
+
+###############################################################################