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ThearchyHelios
48 lines
2.7 KiB
Python
48 lines
2.7 KiB
Python
"""静态地认（engine/lineage.static_stops）和运行时同一套：转抄同一张图里另一张口径卡的指标时跨卡接着认。
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受管级发布检查（governance）和应用检查（apps/lint）都用它：被抄的那个指标追到了查询格，转抄的这一项就算追到；被抄的
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指标停在表达式整形节点，转抄的这一项停在被抄的那张卡；被抄的卡按 caliber_from 固定在别处版本的，静态看不到那一版的
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图，照旧停在那张卡；转抄成环的到层数上限算没追到。
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"""
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from __future__ import annotations
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from app.engine.lineage import Stop, static_stops
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def _nodes(**extra):
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nodes = {
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"q": {"type": "tool", "config": {"tool": "db_query__shop", "args": {"sql": "SELECT 1 AS gmv"}}},
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"base": {"type": "metrics", "config": {"metrics": [
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{"id": "gmv", "expression": "cell(nodes.q, 0, 'gmv')"}]}},
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}
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nodes.update(extra)
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return nodes
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def test_a_copied_metric_that_reaches_a_query_cell_is_traced():
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nodes = _nodes(copy={"type": "metrics", "config": {"metrics": [
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{"id": "x", "expression": "nodes.base.metrics[0].value"}]}})
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assert static_stops(nodes, "nodes.base.metrics[0].value") == []
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# 转抄的转抄也接着认
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nodes["copy2"] = {"type": "metrics", "config": {"metrics": [{"id": "y", "expression": "nodes.copy.metrics[0].value"}]}}
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assert static_stops(nodes, "nodes.copy2.metrics[0].value") == []
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def test_a_copied_metric_whose_source_is_untraced_stops_at_that_card():
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nodes = _nodes(shape={"type": "transform", "config": {"expression": "1"}},
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loose={"type": "metrics", "config": {"metrics": [{"id": "z", "expression": "nodes.shape.value"}]}})
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assert static_stops(nodes, "nodes.loose.metrics[0].value") == [Stop("nodes.loose.metrics[0].value", "loose")]
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def test_a_card_pinned_elsewhere_still_stops_and_out_of_range_still_stops():
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nodes = _nodes(pinned={"type": "metrics", "config": {"caliber_from": {"workflow_id": "w", "version": 1},
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"metrics": [{"id": "gmv", "expression": "cell(nodes.q, 0, 'gmv')"}]}})
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assert static_stops(nodes, "nodes.pinned.metrics[0].value") == [Stop("nodes.pinned.metrics[0].value", "pinned")]
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assert static_stops(_nodes(), "nodes.base.metrics[3].value") == [Stop("nodes.base.metrics[3].value", "base")]
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def test_a_copy_cycle_gives_up_at_the_depth_limit():
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nodes = {"a": {"type": "metrics", "config": {"metrics": [{"id": "x", "expression": "nodes.b.metrics[0].value"}]}},
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"b": {"type": "metrics", "config": {"metrics": [{"id": "y", "expression": "nodes.a.metrics[0].value"}]}}}
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assert static_stops(nodes, "nodes.a.metrics[0].value") == [Stop("nodes.a.metrics[0].value", "a")]
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