from datetime import datetime, timezone
from types import SimpleNamespace
from mtdata.core.trading import (
_normalize_order_type_input,
_normalize_trade_comment,
_server_time_naive_to_mt5_timestamp,
_validate_deviation,
_validate_volume,
)
def test_normalize_order_type_rejects_bool_and_fractional_numeric():
normalized, error = _normalize_order_type_input(True)
assert normalized is None
assert "Unsupported order_type" in error
normalized, error = _normalize_order_type_input(2.5)
assert normalized is None
assert "Unsupported order_type" in error
def test_normalize_order_type_accepts_alias_and_prefixed_names():
normalized, error = _normalize_order_type_input("long")
assert error is None
assert normalized == "BUY"
normalized, error = _normalize_order_type_input("mt5.order_type_sell_limit")
assert error is None
assert normalized == "SELL_LIMIT"
def test_validate_volume_handles_bad_symbol_constraints_gracefully():
symbol_info = SimpleNamespace(volume_min=-1, volume_max="bad", volume_step=0)
volume, error = _validate_volume(0.13, symbol_info)
assert error is None
assert volume == 0.13
def test_validate_deviation_rejects_negative_and_non_numeric():
value, error = _validate_deviation(-1)
assert value is None
assert error == "deviation must be >= 0"
value, error = _validate_deviation("abc")
assert value is None
assert error == "deviation must be numeric"
def test_normalize_trade_comment_applies_default_and_suffix_length_caps():
comment = _normalize_trade_comment(None, default="DefaultComment", suffix="-MKT")
assert comment == "DefaultComment-MKT"
long_comment = _normalize_trade_comment("x" * 50, default="ignored", suffix="-TP")
assert len(long_comment) == 31
assert long_comment.endswith("-TP")
def test_server_time_naive_to_mt5_timestamp_strips_timezone():
ts = _server_time_naive_to_mt5_timestamp(datetime(1970, 1, 1, 0, 1, 0, tzinfo=timezone.utc))
assert ts == 60
