# retoor <retoor@molodetz.nl>

from devplacepy.services.containers.backend.docker_cli import (
    COMMAND_NOT_FOUND,
    DockerCliBackend,
)
from tests.conftest import run_async

MISSING = "devplace-no-such-container-cli"


def test_a_missing_cli_is_a_command_not_found_result_not_an_exception():
    backend = DockerCliBackend(binary=MISSING)
    code, out, err = run_async(backend._run([MISSING, "ps"]))
    assert code == COMMAND_NOT_FOUND == 127
    assert out == ""
    assert MISSING in err and "not found" in err


def test_a_missing_cli_means_the_image_does_not_exist():
    backend = DockerCliBackend(binary=MISSING)
    assert run_async(backend.image_exists("ppy:latest")) is False


def test_a_missing_cli_reports_through_the_stream_callback():
    backend = DockerCliBackend(binary=MISSING)
    lines = []

    async def on_log(line):
        lines.append(line)

    code = run_async(backend._stream([MISSING, "run"], on_log))
    assert code == COMMAND_NOT_FOUND
    assert lines == [f"{MISSING}: command not found"]


def test_a_failing_check_names_the_missing_cli():
    backend = DockerCliBackend(binary=MISSING)
    try:
        run_async(backend._check([MISSING, "info"]))
    except RuntimeError as exc:
        assert "127" in str(exc) and "not found" in str(exc)
    else:
        raise AssertionError("expected a RuntimeError")