Gene Johnson
7a039cdfe0
Gracefully skips figment tests when system Cairo library is unavailable instead of crashing with opaque OSError during test collection. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
53 lines
1.7 KiB
Python
53 lines
1.7 KiB
Python
"""Tests for engine.figment_render module."""
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import os
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import pytest
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pytest.importorskip("cairosvg", reason="cairosvg requires system Cairo library")
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from engine.figment_render import rasterize_svg
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FIXTURE_SVG = os.path.join(os.path.dirname(__file__), "fixtures", "test.svg")
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class TestRasterizeSvg:
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def test_returns_list_of_strings(self):
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rows = rasterize_svg(FIXTURE_SVG, 40, 20)
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assert isinstance(rows, list)
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assert all(isinstance(r, str) for r in rows)
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def test_output_height_matches_terminal_height(self):
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rows = rasterize_svg(FIXTURE_SVG, 40, 20)
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assert len(rows) == 20
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def test_output_contains_block_characters(self):
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rows = rasterize_svg(FIXTURE_SVG, 40, 20)
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all_chars = "".join(rows)
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block_chars = {"█", "▀", "▄"}
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assert any(ch in all_chars for ch in block_chars)
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def test_different_sizes_produce_different_output(self):
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rows_small = rasterize_svg(FIXTURE_SVG, 20, 10)
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rows_large = rasterize_svg(FIXTURE_SVG, 80, 40)
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assert len(rows_small) == 10
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assert len(rows_large) == 40
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def test_nonexistent_file_raises(self):
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import pytest
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with pytest.raises((FileNotFoundError, OSError)):
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rasterize_svg("/nonexistent/file.svg", 40, 20)
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class TestRasterizeCache:
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def test_cache_returns_same_result(self):
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rows1 = rasterize_svg(FIXTURE_SVG, 40, 20)
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rows2 = rasterize_svg(FIXTURE_SVG, 40, 20)
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assert rows1 == rows2
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def test_cache_invalidated_by_size_change(self):
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rows1 = rasterize_svg(FIXTURE_SVG, 40, 20)
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rows2 = rasterize_svg(FIXTURE_SVG, 60, 30)
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assert len(rows1) != len(rows2)
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