Claude
4afbb5a08e
`$outfit.K.AXIS` compacted away picks whose option has no tag on the axis, so every later index slid down and `$outfit.0.SHOES` could print pick 1's shoe beside pick 0. Both the resolver (`get_axis`) and the derivation condition reader now keep one slot per pick. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011fQ7Lkc8AxwXqsRZrFBxE9
110 lines
3.5 KiB
Python
110 lines
3.5 KiB
Python
"""A derivation condition can test a rolled axis.
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This is the reported ask, written out: "IF location = outdoors, append one of
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the tags from SHOES". Conditions read `condition.var` as a raw string rather
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than a token, so this path parses the accessor itself.
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"""
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import random
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from engine.modules.derivation_handler import DerivationHandler
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def _ctx(axes=None):
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return {
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"__wp_rng__": random.Random(0),
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"__wp_node_seed__": 1,
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"__wp_warnings__": [],
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"__wp_axes__": {"outfit": {"SHOES": "sandals"}} if axes is None else axes,
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"outfit": "white t-shirt",
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"location": "outdoors",
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}
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def _rule(var, op="equals", value="sandals"):
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return {
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"rules": [{
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"id": "r1",
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"branches": [{
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"condition": {"var": var, "op": op, "value": value},
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"action": {
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"target_var": "footwear",
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"mode": "replace",
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"value": "strappy sandals",
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},
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}],
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}]
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}
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def test_condition_reads_an_axis():
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assert DerivationHandler.resolve(
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_rule("outfit.SHOES"), {}, _ctx(),
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)["footwear"] == "strappy sandals"
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def test_condition_on_a_missing_axis_is_falsy_not_an_error():
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# Derivations are control flow, not validation: a condition that cannot be
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# answered is simply false.
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assert DerivationHandler.resolve(_rule("outfit.SHOES"), {}, _ctx(axes={})) == {}
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def test_exists_op_sees_an_axis():
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assert DerivationHandler.resolve(
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_rule("outfit.SHOES", op="exists", value=""), {}, _ctx(),
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)["footwear"] == "strappy sandals"
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def test_exists_op_is_false_for_an_undeclared_axis():
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assert DerivationHandler.resolve(
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_rule("outfit.BELTS", op="exists", value=""), {}, _ctx(),
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) == {}
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def test_multi_pick_axis_joins_for_a_bare_read():
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ctx = _ctx(axes={"outfit": [{"SHOES": "sandals"}, {"SHOES": "sneakers"}]})
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assert DerivationHandler.resolve(
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_rule("outfit.SHOES", value="sandals, sneakers"), {}, ctx,
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)["footwear"] == "strappy sandals"
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def test_multi_pick_axis_indexes_in_either_order():
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ctx = _ctx(axes={"outfit": [{"SHOES": "sandals"}, {"SHOES": "sneakers"}]})
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for var in ("outfit.1.SHOES", "outfit.SHOES.1"):
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assert DerivationHandler.resolve(
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_rule(var, value="sneakers"), {}, _ctx(axes=ctx["__wp_axes__"]),
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)["footwear"] == "strappy sandals"
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def test_multi_pick_axis_index_keeps_its_slot_when_a_pick_has_no_axis_tag():
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axes = {"outfit": [{}, {"SHOES": "sneakers"}]}
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assert DerivationHandler.resolve(
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_rule("outfit.1.SHOES", value="sneakers"), {}, _ctx(axes=axes),
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)["footwear"] == "strappy sandals"
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assert DerivationHandler.resolve(
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_rule("outfit.0.SHOES", value="sneakers"), {}, _ctx(axes=axes),
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) == {}
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def test_plain_var_condition_is_untouched():
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assert DerivationHandler.resolve(
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_rule("location", value="outdoors"), {}, _ctx(),
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)["footwear"] == "strappy sandals"
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def test_action_can_emit_the_axis_value():
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"""The literal reported ask: when outdoors, append one of the SHOES tags."""
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payload = {
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"rules": [{
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"id": "r1",
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"branches": [{
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"condition": {"var": "location", "op": "equals", "value": "outdoors"},
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"action": {
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"target_var": "footwear",
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"mode": "replace",
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"value": "$outfit.SHOES",
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},
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}],
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}]
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}
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assert DerivationHandler.resolve(payload, {}, _ctx())["footwear"] == "sandals"
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