# #region TestLayoutUtils [C:3] [TYPE TestModule] [SEMANTICS test, layout, superset, height, estimation]
# @BRIEF Contract tests for layout utility functions — _estimate_markdown_height.
#   Verifies the height estimation formula: empty → 19, short text → computed,
#   padding accounted for, and long text capped at 200.
# @LAYER Test
# @RELATION BINDS_TO -> [LayoutUtils]
# @TEST_CONTRACT: _estimate_markdown_height(str) -> int in [19, 200]
# @TEST_EDGE: empty_content -> returns minimum height (19)
# @TEST_EDGE: html_only_content -> returns minimum height (19)
# @TEST_EDGE: content_with_padding -> padding:12 correctly increases height
# @TEST_EDGE: very_long_content -> capped at maximum height (200)

from src.core.superset_client._layout_utils import _estimate_markdown_height


class TestEstimateMarkdownHeight:
    """Tests for _estimate_markdown_height pure function."""

    # #region test_empty_content [C:2] [TYPE Function]
    # @BRIEF Empty string returns minimum height 19.
    def test_empty_content(self):
        assert _estimate_markdown_height("") == 19
    # #endregion test_empty_content

    # #region test_single_line_text [C:2] [TYPE Function]
    # @BRIEF Short text without padding returns expected computed height.
    #   200 chars → 200//40+1 = 6 lines → 6*22 = 132px → 40+132 = 172px → 172//8 = 21
    def test_single_line_text(self):
        text = "A" * 200
        assert _estimate_markdown_height(text) == 21
    # #endregion test_single_line_text

    # #region test_content_with_padding [C:2] [TYPE Function]
    # @BRIEF Content with padding:12 — 24px added to content height.
    #   200 chars + padding:12 → 6*22 + 24 = 156 → 40+156 = 196 → 196//8 = 24
    def test_content_with_padding(self):
        content = '<div style="padding:12">' + "A" * 200 + "</div>"
        assert _estimate_markdown_height(content) == 24
    # #endregion test_content_with_padding

    # #region test_very_long_content [C:2] [TYPE Function]
    # @BRIEF Very long content (3000 chars) capped at max height 200.
    def test_very_long_content(self):
        text = "A" * 3000
        assert _estimate_markdown_height(text) == 200
    # #endregion test_very_long_content

    # #region test_html_only_content [C:2] [TYPE Function]
    # @BRIEF HTML-only content (no visible text) returns minimum height 19.
    def test_html_only_content(self):
        content = "<br/><hr/><div></div>"
        assert _estimate_markdown_height(content) == 19
    # #endregion test_html_only_content
# #endregion TestLayoutUtils
