1 files changed, 42 insertions, 0 deletions
diff --git a/web/server/h2o/libh2o/t/50throttle-response.t b/web/server/h2o/libh2o/t/50throttle-response.t
new file mode 100644
index 000000000..4fba4d238
--- /dev/null
+++ b/web/server/h2o/libh2o/t/50throttle-response.t
@@ -0,0 +1,42 @@
+use strict;
+use warnings;
+use Test::More;
+use t::Util;
+use Time::HiRes qw(time);
+
+plan skip_all => 'curl not found'
+    unless prog_exists('curl');
+
+my $all_data = do {
+    open my $fh, "<", "@{[DOC_ROOT]}/halfdome.jpg"
+        or die "failed to open file:@{[DOC_ROOT]}/halfdome.jpg:$!";
+    undef $/;
+    <$fh>;
+};
+
+my $server = spawn_h2o(<< "EOT");
+throttle-response: ON
+hosts:
+  default:
+    paths:
+      /:
+        file.dir: @{[ DOC_ROOT ]}
+        header.add: "X-Traffic: 100000"
+EOT
+
+run_with_curl($server, sub {
+    my ($proto, $port, $curl_cmd) = @_;
+    $curl_cmd .= " --silent --show-error";
+    my $url = "$proto://127.0.0.1:$port/halfdome.jpg";
+
+    subtest "throttle-to-low-speed" => sub {
+        my $start_time = time;
+        my $resp = `$curl_cmd $url`;
+        my $end_time = time;
+        is $resp, $all_data;
+        my $speed = length($resp) / ($end_time - $start_time);
+        cmp_ok($speed, '<=', 100000 * 1.1); # the implementation may cause response speed is a bit larger than the limitation, especially when file is not big enough.
+    };
+});
+
+done_testing();