test: increase buffer size for http/data_length_constraints to trigger EPIPE

With greater buffer it can't be written with one writev(2), and hence we can
trigger more tricky cases, like calling writecb/readcb more then once.

Refs: #321

diff --git a/test/regress_http.c b/test/regress_http.c
index cbe7aea34c1d5a57931e62952f785ebcf0c20eef..bd9425785db80dff94f8afc35d7781e972585f41 100644 (file)
--- a/test/regress_http.c
+++ b/test/regress_http.c
@@ -3793,7 +3793,7 @@ http_data_length_constraints_test(void *arg)
        ev_uint16_t port = 0;
        struct evhttp_connection *evcon = NULL;
        struct evhttp_request *req = NULL;
-       char long_str[8192];
+       char long_str[(1<<20) * 3];
 
        test_ok = 0;
 
@@ -3813,10 +3813,10 @@ http_data_length_constraints_test(void *arg)
        req = evhttp_request_new(http_data_length_constraints_test_done, data->base);
        tt_assert(req);
 
-       memset(long_str, 'a', 8192);
-       long_str[8191] = '\0';
+       memset(long_str, 'a', sizeof(long_str));
+       long_str[sizeof(long_str)-1] = '\0';
        /* Add the information that we care about */
-       evhttp_set_max_headers_size(http, 8191);
+       evhttp_set_max_headers_size(http, sizeof(long_str)-1);
        evhttp_add_header(evhttp_request_get_output_headers(req), "Host", "somehost");
        evhttp_add_header(evhttp_request_get_output_headers(req), "Longheader", long_str);
 
@@ -3835,7 +3835,7 @@ http_data_length_constraints_test(void *arg)
        }
        event_base_dispatch(data->base);
 
-       evhttp_set_max_body_size(http, 8190);
+       evhttp_set_max_body_size(http, sizeof(long_str)-2);
        req = evhttp_request_new(http_data_length_constraints_test_done, data->base);
        evhttp_add_header(evhttp_request_get_output_headers(req), "Host", "somehost");
        evbuffer_add_printf(evhttp_request_get_output_buffer(req), "%s", long_str);