Method stream_context

Lib/test/test_android.py:99–123

(self, stream_name, level)

            stream.reconfigure(**original_settings)

    def stream_context(self, stream_name, level):
        stack = ExitStack()
        stack.enter_context(self.subTest(stream_name))

        # In --verbose3 mode, sys.stdout and sys.stderr are captured, so we can't
        # test them directly. Detect this mode and use some temporary streams with
        # the same properties.
        stream = getattr(sys, stream_name)
        native_stream = getattr(sys, f"__{stream_name}__")
        if isinstance(stream, io.StringIO):
            # https://developer.android.com/ndk/reference/group/logging
            prio = {"I": 4, "W": 5}[level]
            stack.enter_context(
                patch(
                    f"sys.{stream_name}",
                    stream := TextLogStream(
                        prio, f"python.{stream_name}", native_stream,
                    ),
                )
            )

        # The tests assume the stream is initially buffered.
        stack.enter_context(self.reconfigure(stream, write_through=False))

        return stack

    def test_str(self):
        for stream_name, level, fileno in STREAM_INFO: