David Gwilliam
56643ae04f
Add typed dataclasses for tuple returns: - types.py: HeadlineItem, FetchResult, Block dataclasses with legacy tuple converters - fetch.py: Add type hints and HeadlineTuple type alias Add pyright for static type checking: - Add pyright to dependencies - Verify type coverage with pyright (0 errors in core modules) This enables: - Named types instead of raw tuples (better IDE support, self-documenting) - Type-safe APIs across modules - Backward compatibility via to_tuple/from_tuple methods Note: Lazy imports skipped for render.py - startup impact is minimal.
96 lines
3.1 KiB
Python
96 lines
3.1 KiB
Python
"""
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Tests for engine.types module.
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"""
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from engine.types import (
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Block,
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FetchResult,
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HeadlineItem,
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items_to_tuples,
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tuples_to_items,
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)
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class TestHeadlineItem:
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"""Tests for HeadlineItem dataclass."""
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def test_create_headline_item(self):
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"""Can create HeadlineItem with required fields."""
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item = HeadlineItem(title="Test", source="Source", timestamp="12:00")
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assert item.title == "Test"
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assert item.source == "Source"
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assert item.timestamp == "12:00"
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def test_to_tuple(self):
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"""to_tuple returns correct tuple."""
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item = HeadlineItem(title="Test", source="Source", timestamp="12:00")
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assert item.to_tuple() == ("Test", "Source", "12:00")
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def test_from_tuple(self):
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"""from_tuple creates HeadlineItem from tuple."""
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item = HeadlineItem.from_tuple(("Test", "Source", "12:00"))
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assert item.title == "Test"
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assert item.source == "Source"
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assert item.timestamp == "12:00"
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class TestItemsConversion:
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"""Tests for list conversion functions."""
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def test_items_to_tuples(self):
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"""Converts list of HeadlineItem to list of tuples."""
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items = [
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HeadlineItem(title="A", source="S", timestamp="10:00"),
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HeadlineItem(title="B", source="T", timestamp="11:00"),
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]
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result = items_to_tuples(items)
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assert result == [("A", "S", "10:00"), ("B", "T", "11:00")]
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def test_tuples_to_items(self):
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"""Converts list of tuples to list of HeadlineItem."""
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tuples = [("A", "S", "10:00"), ("B", "T", "11:00")]
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result = tuples_to_items(tuples)
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assert len(result) == 2
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assert result[0].title == "A"
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assert result[1].title == "B"
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class TestFetchResult:
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"""Tests for FetchResult dataclass."""
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def test_create_fetch_result(self):
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"""Can create FetchResult."""
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items = [HeadlineItem(title="Test", source="Source", timestamp="12:00")]
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result = FetchResult(items=items, linked=1, failed=0)
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assert len(result.items) == 1
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assert result.linked == 1
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assert result.failed == 0
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def test_to_legacy_tuple(self):
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"""to_legacy_tuple returns correct format."""
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items = [HeadlineItem(title="Test", source="Source", timestamp="12:00")]
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result = FetchResult(items=items, linked=1, failed=0)
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legacy = result.to_legacy_tuple()
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assert legacy[0] == [("Test", "Source", "12:00")]
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assert legacy[1] == 1
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assert legacy[2] == 0
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class TestBlock:
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"""Tests for Block dataclass."""
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def test_create_block(self):
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"""Can create Block."""
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block = Block(
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content=["line1", "line2"], color="\033[38;5;46m", meta_row_index=1
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)
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assert len(block.content) == 2
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assert block.color == "\033[38;5;46m"
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assert block.meta_row_index == 1
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def test_to_legacy_tuple(self):
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"""to_legacy_tuple returns correct format."""
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block = Block(content=["line1"], color="green", meta_row_index=0)
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legacy = block.to_legacy_tuple()
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assert legacy == (["line1"], "green", 0)
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