File size: 7,817 Bytes
9a88af0 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 | """Tests for the InvoiceGuard grading system."""
import sys
import os
sys.path.insert(0, os.path.join(os.path.dirname(__file__), ".."))
from models import (
CaseData,
CaseHistory,
CompanyPolicy,
DecisionType,
Difficulty,
ExceptionType,
GRNLineItem,
GoodsReceiptNote,
GroundTruth,
Invoice,
InvoiceGuardState,
InvoiceLineItem,
POLineItem,
PurchaseOrder,
TaskID,
VendorProfile,
)
from graders.scoring import grade_episode, _score_explanation
def _make_case(
correct_decision=DecisionType.approve_for_payment,
correct_exception=ExceptionType.clean_match,
acceptable_evidence=None,
key_findings=None,
max_steps=10,
):
return CaseData(
case_id="TEST-001",
task_id=TaskID.task_1_clean_match,
difficulty=Difficulty.easy,
max_steps=max_steps,
invoice=Invoice(
invoice_number="INV-001",
supplier_name="Test",
supplier_id="SUP-001",
invoice_date="2024-01-01",
po_reference="PO-001",
line_items=[
InvoiceLineItem(
item_code="A",
description="Widget",
quantity_billed=10,
unit_price_billed=5.0,
line_total_billed=50.0,
)
],
subtotal=50.0,
tax=5.0,
total_amount=55.0,
),
purchase_order=PurchaseOrder(
po_number="PO-001",
supplier_id="SUP-001",
order_date="2024-01-01",
line_items=[
POLineItem(
item_code="A",
description="Widget",
ordered_quantity=10,
unit_price_ordered=5.0,
line_total_ordered=50.0,
)
],
),
goods_receipt_note=GoodsReceiptNote(
grn_number="GRN-001",
po_reference="PO-001",
receipt_date="2024-01-05",
line_items=[
GRNLineItem(
item_code="A",
quantity_received=10,
accepted_quantity=10,
)
],
),
vendor_profile=VendorProfile(
supplier_id="SUP-001",
supplier_name="Test",
risk_tier="low",
),
company_policy=CompanyPolicy(),
case_history=CaseHistory(),
ground_truth=GroundTruth(
correct_decision=correct_decision,
correct_exception_type=correct_exception,
acceptable_evidence=acceptable_evidence or [
"inspect_purchase_order",
"compare_quantity",
"compare_price",
],
key_findings=key_findings or [
"quantities match within tolerance",
"prices match within 5% tolerance",
],
),
)
def _make_state(
decision=None,
exception_type=None,
actions=None,
evidence=None,
explanation="",
step_count=5,
):
s = InvoiceGuardState()
s.step_count = step_count
s.final_decision = decision
s.final_exception_type = exception_type
s.actions_taken = actions or []
s.final_evidence = evidence or []
s.final_explanation = explanation
s.documents_revealed = [
a.replace("inspect_", "").replace("_", " ")
for a in (actions or [])
if a.startswith("inspect_")
]
s.repeated_action_counts = {}
for a in (actions or []):
s.repeated_action_counts[a] = s.repeated_action_counts.get(a, 0) + 1
return s
class TestGradeEpisode:
def test_perfect_score(self):
case = _make_case()
state = _make_state(
decision="approve_for_payment",
exception_type="clean_match",
actions=["inspect_purchase_order", "compare_quantity", "compare_price"],
evidence=["inspect_purchase_order", "compare_quantity", "compare_price"],
explanation="All quantities and prices match within 5% tolerance per company policy.",
step_count=4,
)
result = grade_episode(case, state)
assert result.score >= 0.85
assert result.decision_score == 1.0
assert result.exception_type_score == 1.0
def test_wrong_decision_zero_decision_score(self):
case = _make_case()
state = _make_state(
decision="reject_invoice",
exception_type="clean_match",
actions=["inspect_purchase_order"],
evidence=["inspect_purchase_order"],
explanation="Rejecting.",
)
result = grade_episode(case, state)
assert result.decision_score == 0.0
def test_partial_decision_credit(self):
case = _make_case(correct_decision=DecisionType.place_on_hold)
state = _make_state(
decision="escalate_for_supervisor_review",
exception_type="partial_receipt",
actions=["inspect_purchase_order"],
evidence=["inspect_purchase_order"],
)
result = grade_episode(case, state)
assert 0.0 < result.decision_score < 1.0
def test_no_decision_scores_zero(self):
case = _make_case()
state = _make_state(decision=None, step_count=10)
result = grade_episode(case, state)
assert result.decision_score == 0.0
assert result.score < 0.5
def test_score_in_bounds(self):
case = _make_case()
state = _make_state(
decision="approve_for_payment",
exception_type="clean_match",
actions=["inspect_purchase_order"],
evidence=["inspect_purchase_order"],
)
result = grade_episode(case, state)
assert 0.0 <= result.score <= 1.0
def test_all_rubric_dimensions_present(self):
case = _make_case()
state = _make_state(
decision="approve_for_payment",
exception_type="clean_match",
actions=["inspect_purchase_order"],
evidence=["inspect_purchase_order"],
explanation="Matches.",
)
result = grade_episode(case, state)
assert result.decision_score >= 0
assert result.exception_type_score >= 0
assert result.evidence_score >= 0
assert result.investigation_score >= 0
assert result.explanation_score >= 0
assert result.efficiency_score >= 0
class TestExplanationScoring:
def test_empty_explanation(self):
case = _make_case()
score = _score_explanation("", case, ["quantities match"])
assert score == 0.0
def test_good_explanation(self):
case = _make_case(
key_findings=["quantities match within tolerance", "price variance 3%"],
)
score = _score_explanation(
"All quantities match within the 5% tolerance threshold per company policy. "
"Price variance of 3% is acceptable.",
case,
case.ground_truth.key_findings,
)
assert score >= 0.6
def test_explanation_with_numbers(self):
case = _make_case()
score = _score_explanation(
"The invoice total of $55.00 matches the PO within tolerance.",
case,
[],
)
assert score > 0.0
def test_vague_explanation_scores_low(self):
case = _make_case()
score = _score_explanation("ok", case, ["quantities match"])
assert score <= 0.4
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