Work-in-progress on fixing endpoint tests.

src/core/lib/iomgr/ev_poll_and_epoll_posix.c

@@ -1400,7 +1400,7 @@ static grpc_error *multipoll_with_poll_pollset_maybe_work_and_unlock(
 
   if (r < 0) {
     if (errno != EINTR) {
-      gpr_log(GPR_ERROR, "poll() failed: %s", strerror(errno));
+      work_combine_error(&error, GRPC_OS_ERROR(errno, "poll"));
     }
     for (i = 2; i < pfd_count; i++) {
       fd_end_poll(exec_ctx, &watchers[i], 0, 0);
@@ -1693,7 +1693,7 @@ static grpc_error *multipoll_with_epoll_pollset_maybe_work_and_unlock(
 
   if (poll_rv < 0) {
     if (errno != EINTR) {
-      gpr_log(GPR_ERROR, "poll() failed: %s", strerror(errno));
+      work_combine_error(&error, GRPC_OS_ERROR(errno, "poll"));
     }
   } else if (poll_rv == 0) {
     /* do nothing */

test/core/iomgr/endpoint_tests.c

@@ -151,7 +151,7 @@ static void read_and_write_test_write_handler(grpc_exec_ctx *exec_ctx,
   gpr_slice *slices = NULL;
   size_t nslices;
 
-  if (error != GRPC_ERROR_NONE) {
+  if (error == GRPC_ERROR_NONE) {
     state->bytes_written += state->current_write_size;
     if (state->target_bytes - state->bytes_written <
         state->current_write_size) {
@@ -171,7 +171,7 @@ static void read_and_write_test_write_handler(grpc_exec_ctx *exec_ctx,
 
   gpr_log(GPR_INFO, "Write handler done");
   gpr_mu_lock(g_mu);
-  state->write_done = 1 + (error != GRPC_ERROR_NONE);
+  state->write_done = 1 + (error == GRPC_ERROR_NONE);
   GRPC_LOG_IF_ERROR("pollset_kick", grpc_pollset_kick(g_pollset, NULL));
   gpr_mu_unlock(g_mu);
 }