Fix raw_input on debugger redirect. Fixes microsoft#490 (microsoft#816)

* Fix raw_input on debugger redirect. Fixes microsoft#490

* Fix test.

ptvsd/_vendored/pydevd/_pydevd_bundle/pydevd_comm.py

@@ -1021,7 +1021,7 @@ def make_show_console_message(self, thread_id, frame):
 
     def make_input_requested_message(self, started):
         try:
-            return NetCommand(CMD_INPUT_REQUESTED, 0, started)
+            return NetCommand(CMD_INPUT_REQUESTED, 0, str(started))
         except:
             return self.make_error_message(0, get_exception_traceback_str())
 

ptvsd/_vendored/pydevd/tests_python/test_pydevd_io.py

@@ -1,4 +1,5 @@
 from _pydevd_bundle.pydevd_io import IORedirector
+from _pydevd_bundle.pydevd_comm import NetCommandFactory
 
 
 def test_io_redirector():
@@ -12,3 +13,42 @@ class MyRedirection2(object):
     # Check that we don't fail creating the IORedirector if the original
     # doesn't have a 'buffer'.
     IORedirector(MyRedirection1(), MyRedirection2(), wrap_buffer=True)
+
+
+class _DummyWriter(object):
+
+    __slots__ = ['commands', 'command_meanings']
+
+    def __init__(self):
+        self.commands = []
+        self.command_meanings = []
+
+    def add_command(self, cmd):
+        from _pydevd_bundle.pydevd_comm import ID_TO_MEANING
+        meaning = ID_TO_MEANING[str(cmd.id)]
+        self.command_meanings.append(meaning)
+        self.commands.append(cmd)
+
+class _DummyPyDb(object):
+
+    def __init__(self):
+        self.cmd_factory = NetCommandFactory()
+        self.writer = _DummyWriter()
+
+
+def test_debug_console():
+    from _pydev_bundle.pydev_console_utils import DebugConsoleStdIn
+
+    class OriginalStdin(object):
+
+        def readline(self):
+            return 'read'
+
+    original_stdin = OriginalStdin()
+
+    py_db = _DummyPyDb()
+    debug_console_std_in = DebugConsoleStdIn(py_db, original_stdin)
+    assert debug_console_std_in.readline() == 'read'
+
+    assert py_db.writer.command_meanings == ['CMD_INPUT_REQUESTED', 'CMD_INPUT_REQUESTED']
+