initial commit: @arbiter/core authorization engine with js-rigor hardening

Zanzibar-style authorization graph engine (direct/chain/TTU/defeasible/ binary modes, condensed snapshots, value relations) with 39 rigor test campaigns. Includes fixes for snapshot binary writer/reader format mismatch (snapshot-of-snapshot corruption), possibility write-boundary validation, empty-graph snapshot serialization, relation lookup cache direction collision, config-redefinition cache invalidation, binary threshold semantics, defeasible compiled routing, and comparator reason whitelisting.
2026-07-31 13:44:06 -07:00
commit 717ae1031e
373 changed files with 654131 additions and 0 deletions
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+import assert from 'node:assert/strict';
+import { describe, test } from 'node:test';
+import { CondensedGraph } from '../../src/core/CondensedGraph.js';
+
+describe('CondensedGraph - Simple Validation', () => {
+  test('add and retrieve single edge', () => {
+    const graph = new CondensedGraph();
+    
+    graph.addEdge('user:alice', 'owner', 'doc:report');
+    
+    const edges = graph.getOutEdges('user:alice');
+    assert.strictEqual(edges.length, 1, 'Should have 1 edge');
+    
+    const edge = graph.getEdge(edges[0]);
+    assert.ok(edge, 'Should retrieve edge');
+    assert.strictEqual(edge.src, 'user:alice');
+    assert.strictEqual(edge.dst, 'doc:report');
+  });
+
+  test('multiple edges from same source', () => {
+    const graph = new CondensedGraph();
+    
+    graph.addEdge('user:alice', 'owner', 'doc:report');
+    graph.addEdge('user:alice', 'member', 'group:eng');
+    graph.addEdge('user:alice', 'viewer', 'doc:report');
+    
+    const edges = graph.getOutEdges('user:alice');
+    assert.strictEqual(edges.length, 3);
+  });
+
+  test('edge existence', () => {
+    const graph = new CondensedGraph();
+    
+    graph.addEdge('user:alice', 'owner', 'doc:report');
+    
+    assert.ok(graph.hasEdge('user:alice', graph.getRelationId('owner'), 'doc:report'), 'Edge should exist');
+    assert.ok(!graph.hasEdge('user:bob', graph.getRelationId('owner'), 'doc:report'), 'Non-existent edge should not exist');
+  });
+
+  test('memory efficiency - 50K edges', () => {
+    const graph = new CondensedGraph();
+    const numEdges = 50000;
+    
+    const startMem = process.memoryUsage().heapUsed;
+    
+    for (let i = 0; i < numEdges; i++) {
+      graph.addEdge(`user:${i % 100}`, 'relation', `user:${(i + 1) % 1000}`);
+    }
+    
+    const endMem = process.memoryUsage().heapUsed;
+    const memDelta = endMem - startMem;
+    const stats = graph.getStats();
+    
+    console.log('Memory efficiency (50K edges):');
+    console.log('  - Heap delta:', (memDelta / 1024 / 1024).toFixed(2), 'MB');
+    console.log('  - Bytes per edge:', (memDelta / numEdges).toFixed(2));
+    console.log('  - Utilization:', (stats.utilization * 100).toFixed(2), '%');
+    
+    assert.strictEqual(graph.numEdges, numEdges);
+    assert.ok(memDelta < 50 * 1024 * 1024, 'Memory usage should be reasonable (< 50MB)');
+  });
+});