ext/libuv/test/test-tty.c in libuv-3.1.1 vs ext/libuv/test/test-tty.c in libuv-3.1.2

@@ -210,9 +210,96 @@
   uv_run(loop, UV_RUN_DEFAULT);
 
   MAKE_VALGRIND_HAPPY();
   return 0;
 }
+
+TEST_IMPL(tty_empty_write) {
+  int r;
+  int ttyout_fd;
+  uv_tty_t tty_out;
+  char dummy[1];
+  uv_buf_t bufs[1];
+  uv_loop_t* loop;
+
+  /* Make sure we have an FD that refers to a tty */
+  HANDLE handle;
+
+  loop = uv_default_loop();
+
+  handle = CreateFileA("conout$",
+                       GENERIC_READ | GENERIC_WRITE,
+                       FILE_SHARE_READ | FILE_SHARE_WRITE,
+                       NULL,
+                       OPEN_EXISTING,
+                       FILE_ATTRIBUTE_NORMAL,
+                       NULL);
+  ASSERT(handle != INVALID_HANDLE_VALUE);
+  ttyout_fd = _open_osfhandle((intptr_t) handle, 0);
+
+  ASSERT(ttyout_fd >= 0);
+
+  ASSERT(UV_TTY == uv_guess_handle(ttyout_fd));
+
+  r = uv_tty_init(uv_default_loop(), &tty_out, ttyout_fd, 0);  /* Writable. */
+  ASSERT(r == 0);
+
+  bufs[0].len = 0;
+  bufs[0].base = &dummy;
+
+  r = uv_try_write((uv_stream_t*) &tty_out, bufs, 1);
+  ASSERT(r == 0);
+
+  uv_close((uv_handle_t*) &tty_out, NULL);
+
+  uv_run(loop, UV_RUN_DEFAULT);
+
+  MAKE_VALGRIND_HAPPY();
+  return 0;
+}
+
+TEST_IMPL(tty_large_write) {
+  int r;
+  int ttyout_fd;
+  uv_tty_t tty_out;
+  char dummy[10000];
+  uv_buf_t bufs[1];
+  uv_loop_t* loop;
+
+  /* Make sure we have an FD that refers to a tty */
+  HANDLE handle;
+
+  loop = uv_default_loop();
+
+  handle = CreateFileA("conout$",
+                       GENERIC_READ | GENERIC_WRITE,
+                       FILE_SHARE_READ | FILE_SHARE_WRITE,
+                       NULL,
+                       OPEN_EXISTING,
+                       FILE_ATTRIBUTE_NORMAL,
+                       NULL);
+  ASSERT(handle != INVALID_HANDLE_VALUE);
+  ttyout_fd = _open_osfhandle((intptr_t) handle, 0);
+
+  ASSERT(ttyout_fd >= 0);
+
+  ASSERT(UV_TTY == uv_guess_handle(ttyout_fd));
+
+  r = uv_tty_init(uv_default_loop(), &tty_out, ttyout_fd, 0);  /* Writable. */
+  ASSERT(r == 0);
+
+  bufs[0] = uv_buf_init(dummy, sizeof(dummy));
+
+  r = uv_try_write((uv_stream_t*) &tty_out, bufs, 1);
+  ASSERT(r == 10000);
+
+  uv_close((uv_handle_t*) &tty_out, NULL);
+
+  uv_run(loop, UV_RUN_DEFAULT);
+
+  MAKE_VALGRIND_HAPPY();
+  return 0;
+}
 #endif
 
 
 TEST_IMPL(tty_file) {
 #ifndef _WIN32