Playwright Testing for SaaS Multi-Tenant Application Architecture

Test tenant isolation, custom domain routing, white-label configuration, and per-tenant feature flags in multi-tenant SaaS applications. This guide provides step-by-step Playwright patterns to handle this scenario reliably.

Introduction

Robust automation requires handling domain-specific patterns effectively. This article covers playwright testing for saas multi-tenant application architecture with production-ready Playwright code.

Architecture Overview

graph TD
    TenantA["Tenant A subdomain"] --> IsolA["Isolated Data"]
    TenantB["Tenant B subdomain"] --> IsolB["Isolated Data"]
    IsolA --> DB[("Shared DB with RLS")]
    IsolB --> DB

Implementation Guide

test('tenant A cannot access tenant B data', async ({ browser }) => {
  // Create isolated contexts for each tenant
  const tenantA = await browser.newContext({
    baseURL: 'https://tenant-a.yourapp.com'
  });
  const tenantB = await browser.newContext({
    baseURL: 'https://tenant-b.yourapp.com'
  });

  const pageA = await tenantA.newPage();
  const pageB = await tenantB.newPage();

  await pageA.goto('/api/data');
  const dataA = await pageA.textContent('body');
  await pageB.goto('/api/data');
  const dataB = await pageB.textContent('body');

  expect(dataA).not.toBe(dataB); // Tenant isolation verified
  await tenantA.close();
  await tenantB.close();
});

Run Your Tests

npx playwright test --grep "Playwright Testing for"
npx playwright test --ui

Reference Table

Best Practices

Common Mistakes

Frequently Asked Questions

How to test tenant data isolation in Playwright?

Create separate browser contexts per tenant and verify that each tenant's API only returns their own data.

How to test white-label branding per tenant?

Visit each tenant's URL and verify custom logos, colors, and company names are applied correctly.

Can Playwright test feature flag differences between tenants?

Log in as different plan-tier tenants and verify premium features are visible/hidden appropriately.

How to test custom domain routing for tenants?

Set baseURL in browser context to the custom domain and verify the correct tenant data loads.

How to test tenant admin vs regular user permissions?

Create contexts for admin and regular user roles and verify admin-only features are properly restricted.

Summary

Test tenant isolation, custom domain routing, white-label configuration, and per-tenant feature flags in multi-tenant SaaS applications. Apply these patterns to build a reliable, maintainable automation suite for your specific use case.

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