89 lines
2.2 KiB
Python
89 lines
2.2 KiB
Python
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"""Tests for the indicator lifecycle methods: reset, is_ready, warmup_period, repr."""
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from __future__ import annotations
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import numpy as np
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import pytest
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import wickra as ta
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SCALAR_INDICATORS = [
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(ta.SMA, (14,)),
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(ta.EMA, (14,)),
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(ta.WMA, (14,)),
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(ta.RSI, (14,)),
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(ta.MACD, ()),
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(ta.BollingerBands, ()),
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]
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@pytest.mark.parametrize("cls, args", SCALAR_INDICATORS)
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def test_is_ready_transitions_after_warmup(cls, args):
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ind = cls(*args)
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assert not ind.is_ready()
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series = np.linspace(1.0, 200.0, 200)
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ind.batch(series)
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assert ind.is_ready()
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@pytest.mark.parametrize("cls, args", SCALAR_INDICATORS)
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def test_reset_returns_to_initial_state(cls, args):
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ind = cls(*args)
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ind.batch(np.linspace(1.0, 200.0, 200))
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assert ind.is_ready()
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ind.reset()
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assert not ind.is_ready()
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@pytest.mark.parametrize(
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"cls, args, period",
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[
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(ta.SMA, (14,), 14),
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(ta.EMA, (14,), 14),
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(ta.WMA, (14,), 14),
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(ta.RSI, (14,), 15),
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(ta.BollingerBands, (20, 2.0), 20),
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],
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)
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def test_warmup_period(cls, args, period):
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assert cls(*args).warmup_period() == period
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def test_repr_contains_class_and_parameters():
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assert "SMA" in repr(ta.SMA(14))
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assert "14" in repr(ta.SMA(14))
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assert "BollingerBands" in repr(ta.BollingerBands(20, 2.0))
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def test_constructor_rejects_zero_period():
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with pytest.raises(ValueError):
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ta.SMA(0)
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with pytest.raises(ValueError):
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ta.RSI(0)
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def test_macd_rejects_fast_geq_slow():
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with pytest.raises(ValueError):
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ta.MACD(fast=26, slow=12, signal=9)
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def test_bollinger_rejects_non_positive_multiplier():
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with pytest.raises(ValueError):
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ta.BollingerBands(20, 0.0)
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with pytest.raises(ValueError):
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ta.BollingerBands(20, -1.0)
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def test_candle_dict_input_supported():
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atr = ta.ATR(2)
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atr.update({"open": 10.0, "high": 11.0, "low": 9.0, "close": 10.5, "volume": 1.0})
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v = atr.update({"open": 10.5, "high": 12.0, "low": 10.0, "close": 11.0, "volume": 1.0})
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assert v is not None
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def test_candle_tuple_input_supported():
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atr = ta.ATR(2)
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atr.update((10.0, 11.0, 9.0, 10.5, 1.0, 0))
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v = atr.update((10.5, 12.0, 10.0, 11.0, 1.0, 1))
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assert v is not None
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