"""Tests for chart type recommendation engine."""

import pytest


class TestChartRecommendation:
    """Placeholder tests for the recommendation algorithm."""

    def test_one_category_one_number_suggests_bar(self):
        """A dataset with one categorical and one numeric column should suggest bar chart."""
        pass

    def test_time_series_suggests_line(self):
        """A dataset with a date column and a numeric column should suggest line chart."""
        pass

    def test_two_numbers_suggests_scatter(self):
        """Two numeric columns should suggest scatter plot."""
        pass