8180ee8c71
OpenPay (1 crate, 2487 LOC, 33 tests)
op-fraud-graph Graph-based fraud detection. EntityKind (card/email/
device/IP/address/phone/BIN+last4/account) with
canonicalization + hashed EntityKey + billing↔shipping
mismatch detection. Adjacency-list FraudGraph with
idempotent upsert + edge-merge. Double-hashing Bloom
filter (capacity+FPR-sized). Union-find connected
components. PageRank with dangling-sink handling.
Louvain community detection. Shared-instrument hub
rings. Sliding ring-buffer velocity counters. Synthetic
identity heuristics (freshness + heavy-use + mail-drop).
Structuring / smurfing / mule-chain DFS. EntityRisk +
TransactionRisk + RiskBand combiner.
Smart Byte (1 crate, ~1844 LOC, 44 tests)
smart-byte-ilp Interledger Protocol v4. OER codec (length-determinant,
var-octet-string, BE u32/u64). Prepare/Fulfill/Reject
packet roundtrip with all 19 IL-RFC-27 reject codes.
SHA-256 Condition + Fulfillment with constant-time
verify. ILP address validator (7 schemes, 1-128 char
segments, 1023-byte cap, segment-aligned prefix match).
STREAM (15 frame types). BTP. SPSP payment-pointer
resolver. Open Payments API. Longest-prefix routing
Connector with fixed-point quote conversion + balance +
rate-limit checks.
EOC (1 crate, 1921 LOC, 36 tests)
eoc-quantize Quantization primitives. int8 (symmetric/asymmetric
with zero-inclusion fix), int4 (GPTQ + AWQ group quant),
int2 (BitNet), fp8 (E4M3/E5M2), nf4 (QLoRA). GGUF v3
header parse. safetensors read sketch. Calibration
datasets + per-channel scales. KV-cache quant. Energy
tradeoff curves (joules-per-token across schemes).
Co-Authored-By: Claude Opus 4.7 <[email protected]>
81 lines
2.4 KiB
Rust
81 lines
2.4 KiB
Rust
//! Integration tests for [`op_fraud_graph::RingDetector`].
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use op_fraud_graph::{
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EdgeKind, Entity, EntityKind, FraudGraph, RingDetector,
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};
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#[test]
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fn detects_shared_card_across_many_accounts() {
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let mut g = FraudGraph::new();
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let card = g.upsert_entity(Entity::new(EntityKind::CardHash, "PAN-1"), 0, true);
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let mut accounts = Vec::new();
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for i in 0..7 {
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let a = g.upsert_entity(
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Entity::new(EntityKind::Account, &format!("acc-{i}")),
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0,
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true,
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);
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g.add_edge(card, a, EdgeKind::SharesInstrument, 1.0).expect("ok");
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accounts.push(a);
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}
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let rings = RingDetector::default().detect(&g);
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let ring = rings
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.iter()
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.find(|r| r.hub == card)
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.expect("card-hub ring detected");
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assert_eq!(ring.size(), 7);
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assert!(ring.score() > 0.0);
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}
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#[test]
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fn ignores_card_below_threshold() {
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let mut g = FraudGraph::new();
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let card = g.upsert_entity(Entity::new(EntityKind::CardHash, "PAN-2"), 0, true);
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for i in 0..2 {
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let a = g.upsert_entity(
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Entity::new(EntityKind::Account, &format!("a-{i}")),
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0,
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true,
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);
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g.add_edge(card, a, EdgeKind::SharesInstrument, 1.0).expect("ok");
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}
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let rings = RingDetector::default().detect(&g);
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assert!(rings.iter().all(|r| r.hub != card));
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}
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#[test]
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fn ignores_wrong_edge_kind() {
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let mut g = FraudGraph::new();
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let card = g.upsert_entity(Entity::new(EntityKind::CardHash, "PAN-3"), 0, true);
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for i in 0..10 {
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let a = g.upsert_entity(
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Entity::new(EntityKind::Account, &format!("x-{i}")),
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0,
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true,
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);
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g.add_edge(card, a, EdgeKind::CoTransaction, 1.0).expect("ok");
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}
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let rings = RingDetector::default().detect(&g);
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assert!(rings.iter().all(|r| r.hub != card));
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}
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#[test]
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fn respects_min_edge_weight() {
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let mut g = FraudGraph::new();
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let card = g.upsert_entity(Entity::new(EntityKind::CardHash, "PAN-4"), 0, true);
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for i in 0..10 {
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let a = g.upsert_entity(
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Entity::new(EntityKind::Account, &format!("y-{i}")),
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0,
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true,
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);
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// Weight 0.1 < default min_edge_weight (1.0)
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g.add_edge(card, a, EdgeKind::SharesInstrument, 0.1).expect("ok");
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}
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let rings = RingDetector::default().detect(&g);
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assert!(rings.iter().all(|r| r.hub != card));
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}
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