How to run a Playwright test without using the command line

It sound like you would like to use playwright as a library instead of a test runner. Here is an example of a function that opens a website and takes a screenshot (using Playwright as a library):

const { webkit } = require('playwright');
    
const performScreenshot = async () => {
  const browser = await webkit.launch();
  const page = await browser.newPage();
  await page.goto('https://stackoverflow.com/');
  await page.screenshot({ path: `example.png` });
  await browser.close();
};

Reference: https://playwright.dev/docs/library

First file

// myTest.spec.js
const { test, expect } = require('@playwright/test');

test('sample test', async ({ page }) => {
  await page.goto('https://stackoverflow.com');
  const title = await page.title();
  expect(title).toBe('Stackoverflow');
});

Second file

// runTests.js
const { runTests } = require('@playwright/test/lib/cli/cli');

async function runMyTest() {
  await runTests({
    files: ['./myTest.spec.js'], // Array of test files to run
    report: false,
    headed: true,
  });
}


// Run the test multiple times
(async () => {
  for (let i = 0; i < 5; i++) {
    console.log(`Running test iteration ${i + 1}`);
    await runMyTest();
  }
  console.log('All test iterations completed');
})();

Then you can try to run your test multiple times or loop the test without typing in the terminal

node runTests.js

Playwright tests can be run without using the CLI command. Playwright is a Node.js library, so you can write your test scripts in a Node.js file and then run the file using Node.js.