Multi-select forwarding and deleting

ts/test-electron/sql/utils_test.ts

@@ -0,0 +1,53 @@
+// Copyright 2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { assert } from 'chai';
+import type { Database } from '@signalapp/better-sqlite3';
+import SQL from '@signalapp/better-sqlite3';
+import { sql, sqlFragment, sqlJoin } from '../../sql/util';
+
+describe('sql/utils/sql', () => {
+  let db: Database;
+
+  beforeEach(() => {
+    db = new SQL(':memory:');
+  });
+
+  afterEach(() => {
+    db.close();
+  });
+
+  it('can run different query types with nested sql syntax', async () => {
+    const [createQuery, createParams] = sql`
+      CREATE TABLE examples (
+        id INTEGER PRIMARY KEY,
+        body TEXT
+      );
+    `;
+    db.prepare(createQuery).run(createParams);
+
+    const [insertQuery, insertParams] = sql`
+      INSERT INTO examples (id, body) VALUES
+        (1, 'foo'),
+        (2, 'bar'),
+        (3, 'baz');
+    `;
+    db.prepare(insertQuery).run(insertParams);
+
+    const predicate = sqlFragment`body = ${'baz'}`;
+
+    const [selectQuery, selectParams] = sql`
+      SELECT * FROM examples WHERE
+        id IN (${sqlJoin([1, 2], ', ')}) OR
+        ${predicate};
+    `;
+
+    const result = db.prepare(selectQuery).all(selectParams);
+
+    assert.deepEqual(result, [
+      { id: 1, body: 'foo' },
+      { id: 2, body: 'bar' },
+      { id: 3, body: 'baz' },
+    ]);
+  });
+});