refactor: enforce package boundaries

2026-08-07 10:13:29 +00:00
parent b1de142440
commit 1a1d0b2d91
64 changed files with 812 additions and 628 deletions
@@ -0,0 +1,53 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+
+import { checkSource, extractImports } from './check-package-boundaries.mjs';
+
+test('extracts multiline and type-only package imports', () => {
+    assert.deepEqual(extractImports("import type { AppRouter } from '@sammo-ts/game-api';"), [
+        { specifier: '@sammo-ts/game-api', typeOnly: true, clause: '{ AppRouter }' },
+    ]);
+    assert.equal(
+        extractImports("import {\n  GamePrisma,\n  type DatabaseClient\n} from '@sammo-ts/infra';")[0]?.specifier,
+        '@sammo-ts/infra'
+    );
+});
+
+test('rejects infrastructure access and process diagnostics in logic', () => {
+    const zone = { name: 'logic', allowed: ['@sammo-ts/common'] };
+    const violations = checkSource({
+        source: "import { PrismaClient } from '@prisma/client/runtime';\nprocess.stdout.write('trace');\nfetch('/x');",
+        relativePath: 'packages/logic/src/example.ts',
+        zone,
+    });
+    assert.equal(violations.length, 3);
+});
+
+test('requires frontend backend references to be type-only', () => {
+    const zone = {
+        name: 'game-frontend',
+        allowed: ['@sammo-ts/game-api'],
+        frontend: true,
+    };
+    const violations = checkSource({
+        source: "import { appRouter } from '@sammo-ts/game-api';",
+        relativePath: 'app/game-frontend/src/trpc.ts',
+        zone,
+    });
+    assert.deepEqual(violations, [
+        'app/game-frontend/src/trpc.ts: frontend may reference @sammo-ts/game-api only through import type',
+    ]);
+});
+
+test('rejects prefixed and bare Node builtins in frontend source', () => {
+    const violations = checkSource({
+        source: "import path from 'path';\nimport fs from 'node:fs';",
+        relativePath: 'app/game-frontend/src/example.ts',
+        zone: { name: 'game-frontend', allowed: [], frontend: true },
+    });
+
+    assert.deepEqual(violations, [
+        'app/game-frontend/src/example.ts: frontend production code may not import path',
+        'app/game-frontend/src/example.ts: frontend production code may not import node:fs',
+    ]);
+});