import assert from "node:assert/strict";
import test from "node:test";

import { startPostgresFixture } from "./helpers/postgres-fixture.ts";

test("stdin PostgreSQL scripts carry large SQL and preserve transaction-local settings", () => {
  const fixture = startPostgresFixture();
  try {
    const payload = "x".repeat(131_073);
    const script = `
      select set_config('app.test_large_script', 'stdin-helper', true);
      select current_setting('app.test_large_script');
      select length($$${payload}$$);
    `;
    assert.equal(Buffer.byteLength(script, "utf8") > 131_072, true);
    assert.equal(
      fixture.psqlScriptAs("postgres", "postgres-test-password", script),
      "stdin-helper\nstdin-helper\n131073",
    );
    assert.equal(
      fixture.psqlScriptAs("postgres", "postgres-test-password", "select repeat('x', 1048577);"),
      "x".repeat(1_048_577),
    );
  } finally {
    fixture.stop();
  }
});