Add a failing test due to a head of line blocking bug in the server

2 files changed, 152 insertions, 0 deletions

diff --git a/test/core/bad_client/gen_build_yaml.py b/test/core/bad_client/gen_build_yaml.py
index ca26eda170..d49858ed6d 100755
--- a/test/core/bad_client/gen_build_yaml.py
+++ b/test/core/bad_client/gen_build_yaml.py
@@ -44,6 +44,7 @@ BAD_CLIENT_TESTS = {
     'connection_prefix': default_test_options._replace(cpu_cost=0.2),
     'headers': default_test_options._replace(cpu_cost=0.2),
     'initial_settings_frame': default_test_options._replace(cpu_cost=0.2),
+    'head_of_line_blocking': default_test_options,
     'server_registered_method': default_test_options,
     'simple_request': default_test_options,
     'window_overflow': default_test_options,
diff --git a/test/core/bad_client/tests/head_of_line_blocking.c b/test/core/bad_client/tests/head_of_line_blocking.c
new file mode 100644
index 0000000000..53cd4537b2
--- /dev/null
+++ b/test/core/bad_client/tests/head_of_line_blocking.c
@@ -0,0 +1,151 @@
+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "test/core/bad_client/bad_client.h"
+
+#include <string.h>
+
+#include <grpc/support/alloc.h>
+
+#include "src/core/lib/surface/server.h"
+#include "test/core/end2end/cq_verifier.h"
+
+static const char prefix[] =
+    "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n"
+    // settings frame
+    "\x00\x00\x00\x04\x00\x00\x00\x00\x00"
+    // stream 1 headers: generated from server_registered_method.headers in this
+    // directory
+    "\x00\x00\xd0\x01\x04\x00\x00\x00\x01"
+    "\x10\x05:path\x0f/registered/bar"
+    "\x10\x07:scheme\x04http"
+    "\x10\x07:method\x04POST"
+    "\x10\x0a:authority\x09localhost"
+    "\x10\x0c"
+    "content-type\x10"
+    "application/grpc"
+    "\x10\x14grpc-accept-encoding\x15identity,deflate,gzip"
+    "\x10\x02te\x08trailers"
+    "\x10\x0auser-agent\"bad-client grpc-c/0.12.0.0 (linux)"
+    // data frame for stream 1: advertise a 10000 byte payload (that we won't
+    // fulfill)
+    "\x00\x00\x05\x00\x00\x00\x00\x00\x01"
+    "\x01\x00\x00\x27\x10"
+    // stream 3 headers: generated from server_registered_method.headers in this
+    // directory
+    "\x00\x00\xd0\x01\x04\x00\x00\x00\x03"
+    "\x10\x05:path\x0f/registered/bar"
+    "\x10\x07:scheme\x04http"
+    "\x10\x07:method\x04POST"
+    "\x10\x0a:authority\x09localhost"
+    "\x10\x0c"
+    "content-type\x10"
+    "application/grpc"
+    "\x10\x14grpc-accept-encoding\x15identity,deflate,gzip"
+    "\x10\x02te\x08trailers"
+    "\x10\x0auser-agent\"bad-client grpc-c/0.12.0.0 (linux)"
+    // data frame for stream 3: advertise a 10000 byte payload (that we will
+    // fulfill)
+    "\x00\x00\x05\x00\x00\x00\x00\x00\x03"
+    "\x01\x00\x00\x27\x10"
+    "";
+
+static void *tag(intptr_t t) { return (void *)t; }
+
+static void verifier(grpc_server *server, grpc_completion_queue *cq,
+                     void *registered_method) {
+  grpc_call_error error;
+  grpc_call *s;
+  cq_verifier *cqv = cq_verifier_create(cq);
+  grpc_metadata_array request_metadata_recv;
+  gpr_timespec deadline;
+  grpc_byte_buffer *payload = NULL;
+
+  grpc_metadata_array_init(&request_metadata_recv);
+
+  error = grpc_server_request_registered_call(server, registered_method, &s,
+                                              &deadline, &request_metadata_recv,
+                                              &payload, cq, cq, tag(101));
+  GPR_ASSERT(GRPC_CALL_OK == error);
+  cq_expect_completion(cqv, tag(101), 1);
+  cq_verify(cqv);
+
+  GPR_ASSERT(payload != NULL);
+
+  grpc_metadata_array_destroy(&request_metadata_recv);
+  grpc_call_destroy(s);
+  grpc_byte_buffer_destroy(payload);
+  cq_verifier_destroy(cqv);
+}
+
+char *g_buffer;
+size_t g_cap = 0;
+size_t g_count = 0;
+
+static void addbuf(const void *data, size_t len) {
+  if (g_count + len > g_cap) {
+    g_cap = GPR_MAX(g_count + len, g_cap * 2);
+    g_buffer = gpr_realloc(g_buffer, g_cap);
+  }
+  memcpy(g_buffer + g_count, data, len);
+  g_count += len;
+}
+
+int main(int argc, char **argv) {
+  int i;
+  grpc_test_init(argc, argv);
+
+#define NUM_FRAMES 10
+#define FRAME_SIZE 1000
+
+  addbuf(prefix, sizeof(prefix) - 1);
+  for (i = 0; i < NUM_FRAMES; i++) {
+    uint8_t hdr[9] = {(uint8_t)(FRAME_SIZE >> 16),
+                      (uint8_t)(FRAME_SIZE >> 8),
+                      (uint8_t)FRAME_SIZE,
+                      0,
+                      0,
+                      0,
+                      0,
+                      0,
+                      3};
+    uint8_t msg[FRAME_SIZE];
+    memset(msg, 'a', sizeof(msg));
+    addbuf(hdr, sizeof(hdr));
+    addbuf(msg, FRAME_SIZE);
+  }
+  grpc_run_bad_client_test(verifier, g_buffer, g_count, 0);
+  gpr_free(g_buffer);
+
+  return 0;
+}