code: def test_simple_text_input():
      # Simple text input, followed by enter.
      result, cli = _feed_cli_with_input("hello\n")
      assert result.text == "hello"
      assert cli.buffers[DEFAULT_BUFFER].text == "hello"
  
imports: from __future__ import unicode_literals
  from prompt_toolkit.application import Application
  from prompt_toolkit.buffer import Buffer, AcceptAction
  from prompt_toolkit.clipboard import InMemoryClipboard, ClipboardData
  from prompt_toolkit.enums import DEFAULT_BUFFER, EditingMode
  from prompt_toolkit.eventloop.posix import PosixEventLoop
  from prompt_toolkit.history import InMemoryHistory
  from prompt_toolkit.input import PipeInput
  from prompt_toolkit.interface import CommandLineInterface
  from prompt_toolkit.key_binding.manager import KeyBindingManager
  from prompt_toolkit.output import DummyOutput
  from prompt_toolkit.terminal.vt100_input import ANSI_SEQUENCES
  from functools import partial
  import pytest
label_desc: Use image node_id 3 for calling a global function with example usage: test_simple_text_input() without return types