Answers
What is end-to-end testing?
In short
End-to-end (E2E) testing exercises a complete user journey across UI, API and backend systems — including third parties — to prove the full journey works.
Short answer
End-to-end (E2E) testing exercises a complete user journey across UI, API and backend systems — including third parties — to prove the full journey works.
What this actually means in practice
E2E tests are expensive to write and maintain, so they should be reserved for the journeys that move money, change risk or trigger regulatory reporting. Most behaviour should be tested at lower layers (unit, contract, integration) and only the irreplaceable journeys at E2E.
The most common pitfall
Putting everything in E2E and ending up with a slow, brittle, hated suite.
What to do next
Map your testing pyramid and shift coverage to the cheapest layer that can prove the property.
Frequently asked questions
Does Forth Systems help with this?
Yes — Forth Systems works with banks, payment institutions, insurers and infrastructure operators on exactly this kind of work. Engagements start with a fixed-scope assessment so you see the shape before committing.
How experienced is the team?
Engagements are staffed by named, UK-based senior engineers — not a rotating offshore pool. References from the second line of comparable clients are available on request.
Where are you based?
Edinburgh-based, delivering UK-wide with onsite presence in London and across Scotland as required.
How fast can we start?
Most engagements start within 2-4 weeks of a signed SoW, faster where an existing supplier framework is in place.