85 lines
2.8 KiB
Python
85 lines
2.8 KiB
Python
"""Config loading + validation tests (IMPLEMENTATION_PLAN §4.1)."""
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from pathlib import Path
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import pytest
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from opcda_diagnozer.config import ConfigError, load_config
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EXAMPLE = Path(__file__).resolve().parents[1] / "config.example.yaml"
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def _write(tmp_path: Path, text: str) -> Path:
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p = tmp_path / "config.yaml"
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p.write_text(text, encoding="utf-8")
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return p
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def test_example_config_loads() -> None:
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config = load_config(EXAMPLE)
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assert config.opc.server == "Matrikon.OPC.Simulation.1"
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assert config.opc.host == "CONTROL-HOST01"
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assert len(config.tags) == 2
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assert config.tags[0].name == "Channel1.Device1.Counter"
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assert config.tags[0].expect_change is True
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assert config.tags[1].expect_change is False
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assert config.poll.interval_s == 1.0
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assert config.poll.timeout_ms == 5000
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assert config.latency.warn_ms == 1000
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assert config.report.eventlog.min_severity == "WARN"
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assert config.report.jsonl.dir == "C:/ProgramData/OPCDA-Diagnozer/logs"
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def test_missing_file_is_actionable() -> None:
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with pytest.raises(ConfigError, match="not found"):
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load_config("no-such-config.yaml")
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def test_missing_opc_section_is_actionable(tmp_path: Path) -> None:
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p = _write(tmp_path, "tags:\n - name: t\n")
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with pytest.raises(ConfigError, match=r"opc: missing required key 'server'"):
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load_config(p)
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def test_unknown_key_rejected(tmp_path: Path) -> None:
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p = _write(tmp_path, "opc:\n server: X\n typo_key: 1\ntags:\n - name: t\n")
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with pytest.raises(ConfigError, match="typo_key"):
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load_config(p)
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def test_unknown_top_level_section_rejected(tmp_path: Path) -> None:
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p = _write(tmp_path, "opc:\n server: X\ntags:\n - name: t\nnonsense: {}\n")
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with pytest.raises(ConfigError, match="nonsense"):
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load_config(p)
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def test_empty_tags_rejected(tmp_path: Path) -> None:
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p = _write(tmp_path, "opc:\n server: X\ntags: []\n")
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with pytest.raises(ConfigError, match="at least one tag"):
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load_config(p)
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def test_duplicate_tags_rejected(tmp_path: Path) -> None:
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p = _write(tmp_path, "opc:\n server: X\ntags:\n - name: a\n - name: a\n")
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with pytest.raises(ConfigError, match="duplicate"):
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load_config(p)
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def test_latency_threshold_order_rejected(tmp_path: Path) -> None:
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p = _write(
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tmp_path,
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"opc:\n server: X\ntags:\n - name: t\n"
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"latency:\n warn_ms: 5000\n critical_ms: 1000\n",
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)
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with pytest.raises(ConfigError, match="warn_ms"):
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load_config(p)
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def test_hard_hang_must_exceed_timeout(tmp_path: Path) -> None:
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p = _write(
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tmp_path,
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"opc:\n server: X\ntags:\n - name: t\n"
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"poll:\n timeout_ms: 5000\n hard_hang_s: 4\n",
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)
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with pytest.raises(ConfigError, match="hard_hang_s"):
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load_config(p) |