turso/bindings/javascript/__test__/better-sqlite3.spec.mjs

import test from "ava";

import Database from "better-sqlite3";

test("Open in-memory database", async (t) => {
  const [db] = await connect(":memory:");
  t.is(db.memory, true);
});


test("Statement.get() returns data", async (t) => {
  const [db] = await connect(":memory:");
  const stmt = db.prepare("SELECT 1");
  const result = stmt.get();
  t.is(result["1"], 1);
  const result2 = stmt.get();
  t.is(result2["1"], 1);
});

test("Statement.get() returns undefined when no data", async (t) => {
  const [db] = await connect(":memory:");
  const stmt = db.prepare("SELECT 1 WHERE 1 = 2");
  const result = stmt.get();
  t.is(result, undefined);
});

test("Statement.run() returns correct result object", async (t) => {
  const [db] = await connect(":memory:");
  db.prepare("CREATE TABLE users (name TEXT)").run();
  const rows = db.prepare("INSERT INTO users (name) VALUES (?)").run("Alice");
  t.deepEqual(rows, { changes: 1, lastInsertRowid: 1 });
});

test("Empty prepared statement should throw", async (t) => {
    const [db] = await connect(":memory:");
    t.throws(() => {
        db.prepare("");
    }, { instanceOf: Error });
});

const connect = async (path) => {
  const db = new Database(path);
  return [db];
};