85 lines
3.4 KiB
Python
85 lines
3.4 KiB
Python
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"""Configuration layering: CLI flag > frontmatter > default."""
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from __future__ import annotations
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import pytest
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from wapdown.config import DEFAULT_MAX_CARD_BYTES, ConfigError, DeckConfig
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class TestPrecedence:
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def test_defaults_when_nothing_is_given(self):
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config = DeckConfig.resolve()
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assert config.split_level == 0
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assert config.max_card_bytes == DEFAULT_MAX_CARD_BYTES
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assert config.menu is True
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assert config.menu_style == "links"
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assert config.title is None
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def test_frontmatter_beats_default(self):
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config = DeckConfig.resolve({"split_level": "2", "title": "Trail"})
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assert config.split_level == 2
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assert config.title == "Trail"
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def test_cli_beats_frontmatter(self):
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config = DeckConfig.resolve({"split_level": "2"}, {"split_level": 3})
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assert config.split_level == 3
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def test_absent_cli_option_does_not_clobber_frontmatter(self):
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# argparse hands every unset option through as None; that must mean
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# "not given" rather than "set to nothing".
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config = DeckConfig.resolve({"title": "Trail"}, {"title": None, "menu": None})
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assert config.title == "Trail"
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assert config.menu is True
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def test_unknown_frontmatter_key_warns_but_does_not_fail(self, capsys):
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config = DeckConfig.resolve({"hyphenate": "true", "title": "T"})
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assert config.title == "T"
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assert "unknown frontmatter key 'hyphenate'" in capsys.readouterr().err
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class TestCoercion:
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@pytest.mark.parametrize("raw", ["true", "yes", "1", "on", "TRUE"])
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def test_truthy_strings(self, raw):
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assert DeckConfig.resolve({"menu": raw}).menu is True
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@pytest.mark.parametrize("raw", ["false", "no", "0", "off", "FALSE"])
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def test_falsy_strings(self, raw):
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assert DeckConfig.resolve({"menu": raw}).menu is False
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def test_menu_style_is_case_insensitive(self):
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assert DeckConfig.resolve({"menu_style": "SELECT"}).menu_style == "select"
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def test_hyphenated_frontmatter_key_is_accepted(self):
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assert DeckConfig.resolve({"split-level": "2"}).split_level == 2
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def test_empty_title_becomes_none(self):
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assert DeckConfig.resolve({"title": ""}).title is None
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class TestValidation:
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@pytest.mark.parametrize("value", [-1, 7])
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def test_split_level_out_of_range(self, value):
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with pytest.raises(ConfigError, match="split_level"):
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DeckConfig.resolve(overrides={"split_level": value})
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def test_negative_byte_budget(self):
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with pytest.raises(ConfigError, match="max_card_bytes"):
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DeckConfig.resolve(overrides={"max_card_bytes": -1})
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def test_unknown_menu_style(self):
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with pytest.raises(ConfigError, match="menu_style"):
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DeckConfig.resolve(overrides={"menu_style": "carousel"})
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def test_unknown_image_policy(self):
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with pytest.raises(ConfigError, match="images"):
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DeckConfig.resolve(overrides={"images": "wbmp"})
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def test_non_numeric_split_level_in_frontmatter(self):
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# Previously an uncaught ValueError escaping as a traceback.
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with pytest.raises(ConfigError, match="split_level must be a number"):
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DeckConfig.resolve({"split_level": "deep"})
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def test_non_boolean_menu_in_frontmatter(self):
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with pytest.raises(ConfigError, match="menu must be a boolean"):
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DeckConfig.resolve({"menu": "sometimes"})
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