"""
Test module for IndicatorSpecWrapper

Test Categories:
1. col() - Returns pl.Expr with display_name
2. display_name property - String format
3. spec property - Returns original IndicatorSpec
4. __repr__ - String representation
"""

import pytest

# TODO: Import from tradepose_client.builder
# from tradepose_client.builder import IndicatorSpecWrapper
# import polars as pl


class TestIndicatorSpecWrapper:
    """Test suite for IndicatorSpecWrapper."""

    def test_col_returns_polars_expr(self):
        """Test col() returns polars expression."""
        # TODO: Arrange - wrapper = IndicatorSpecWrapper(indicator_spec)
        # TODO: Act - expr = wrapper.col()
        # TODO: Assert - isinstance(expr, pl.Expr)
        pass

    def test_col_uses_display_name(self):
        """Test col() uses display_name."""
        # TODO: Arrange - wrapper with display_name="sma_20"
        # TODO: Act - expr = wrapper.col()
        # TODO: Assert - expr is pl.col("sma_20")
        pass

    def test_display_name_property(self):
        """Test display_name property returns string."""
        # TODO: Arrange - wrapper with indicator_spec
        # TODO: Act - name = wrapper.display_name
        # TODO: Assert - isinstance(name, str)
        # TODO: Assert - Format like "sma_20_BTCUSDT_1h"
        pass

    def test_spec_property(self):
        """Test spec property returns original IndicatorSpec."""
        # TODO: Arrange - indicator_spec, wrapper
        # TODO: Act - returned_spec = wrapper.spec
        # TODO: Assert - returned_spec is indicator_spec
        pass

    def test_repr(self):
        """Test __repr__ output."""
        # TODO: Act - repr_str = repr(wrapper)
        # TODO: Assert - Contains indicator type and display name
        pass
