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Appsierra · Test automation

Rescue the suite, or build one worth trusting.

Automation fails in a predictable way: the suite gets slow, then it gets flaky, then it moves to a nightly run, and then it is gone. This is the practice that reverses that — including a fixed three-to-six-week rescue for a suite the team has already stopped trusting.

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3–6 weeks
rescue engagement

A fixed-duration offer to rebuild a suite the team stopped trusting — the only fixed-length engagement published here.

Weekly
flake budget review

Not marketing language: it is what the pod actually ran at Rocketium, alongside weekly standups.

5,000+
regression cases automated

On a published fintech programme, across multiple platforms, at about 90% coverage.

p95 / p99
not averages

A mean response time hides the tail where the unhappiest users — and the support tickets — live.

01

What Test automation is

Test automation here is a distinct discipline from quality assurance and from testing: it is building and maintaining automation frameworks wired into CI for fast, low-flake feedback. The framework separates test logic from locators and data, uses reusable components and stable waits so tests fail for real reasons rather than timing noise, and adds self-healing locators to absorb the cosmetic UI churn that used to break dozens of scripts a release.

Regression is selected rather than run wholesale — the full pack where it belongs and a targeted subset on every commit, chosen by what the change actually touches — and executed in parallel so the feedback loop stays inside the window a developer will wait for. Flake is treated as a first-class deliverable with a budget reviewed weekly, which is precisely what the pod did at Rocketium: rebuild around risk, wire into CI with parallel execution, and move regression from once a sprint to every deployment.

Migrating off a legacy suite happens in coverage order, never alphabetically. Every legacy script is scored on the business risk it protects, low-value scripts are retired rather than ported, and nothing is switched off until its replacement passes against the same build — so coverage never dips mid-transition.

02

What it does

The artefacts a pod leaves behind, and the rules it applies to them.

01

A framework built to be maintained

Test logic separated from locators and data, reusable components, deterministic waits and self-healing locators. The structure is the deliverable: a suite that is cheap to change survives, and one that is expensive to change gets abandoned.

02

Risk-selected regression

The full pack where it belongs, and a targeted subset on every commit chosen by what the change actually touches. Once a suite takes longer than the team will wait, it moves to nightly, then to pre-release, and the feedback loop it existed to provide is gone.

03

Visual baselines that block a merge

Every build captures instrumented screens and compares them against an approved baseline per page, component and state. Intended changes are approved and the baseline updates in the same flow; unintended ones block the merge.

04

API contract suites

Responses validated against the OpenAPI, GraphQL or WSDL contract, so an undocumented change fails your build instead of surfacing as a consumer's production incident. OWASP API risks are covered in the same pass.

05

Performance with a named bottleneck

Not a pass or fail: the concurrency at which response time leaves its acceptable band, the resource that saturates first, and the evidence tying one to the other — reported as p95 and p99 distributions.

06

A device matrix from your analytics

An emulator matrix for breadth in CI and a curated real-device set for the release gate, weighted to the handsets your own analytics show — because emulators do not reproduce camera and sensor behaviour, battery drain, thermal throttling, biometrics or push delivery.

03

How it runs

Two shapes: build a suite that does not exist, or rescue one that does.

  1. Triage what is there

    Every existing script is scored on the business risk it protects. Muted tests, duplicates and brittle scripts are identified for retirement rather than porting, and the flake sources are diagnosed before anything is rebuilt.

  2. Restructure the layers

    Framework skeleton, locator and data separation, reusable components and stable waits, wired into GitHub Actions, GitLab CI, Jenkins or Azure DevOps with parallel execution. First slice running inside the first week.

  3. Migrate in coverage order

    High-risk paths rebuilt first, and the old suite stays running until its replacement passes against the same build. Nothing is switched off on the promise that the new one is better.

  4. Wire in the gate

    Regression selection by change surface, visual diffs on the pull request, contract tests against the API spec, and a merge that blocks on an unintended difference rather than on a nightly report nobody reads.

  5. Hand it over

    Documentation and team training at handover, with the flake budget and the ownership model written down. The point is that your team runs it afterwards.

04

Who it is for

The people who call are usually inheriting a problem rather than starting one.

Engineering leaders blocked on release day

Manual regression is the reason deployment happens once a sprint. The measurable target is regression cycle time, and it is the number the engagement is held to.

QA leads who inherited a suite nobody trusts

The tests fail at random, so everyone ignores them. This is the rescue engagement: three to six weeks to triage the flake, restructure and re-establish that red means something.

Managers with four disconnected suites

Four tools, four maintenance burdens, four reporting formats and no single answer to the only question leadership asks — are we covered? Consolidation is a delivery model, not a tool purchase.

05

What it does not do

Sharp lines, because the neighbouring disciplines look similar from the outside.

  • Automation is a delivery model, not a replacement for the testing disciplines. Verifying features against specification is functional testing, and owning the whole quality function is a different engagement. Quality engineering →
  • Visual testing owns pixel and layout diffing. It does not judge whether the design is any good or whether people can navigate it — that is human judgement.
  • We operate visual-diffing and automation tooling on your behalf. We are not a tool vendor, and we have no incentive to keep you on a particular one.
  • Testing the infrastructure rather than the application — Terraform, CloudFormation and Kubernetes manifests, drift scanning — sits with the cloud practice. Cloud & infrastructure →
  • None of the group's thirteen products is a testing tool, so there is no product to attach here. Saying so is more useful than manufacturing a pairing.
06

Answers

How do you stop automated tests becoming flaky?

By designing for stability from the start — separating test logic from locators, using deterministic waits and controlled test data — and diagnosing flakiness at its source rather than adding a retry. A stabilised suite where red means a real defect is the deliverable.

Can you automate an existing application?

Yes. We assess current coverage and risk, build a maintainable framework around the highest-payback paths, and integrate it into CI — usually starting with a pilot suite to prove reliability before scaling.

How do you migrate off a legacy suite?

In coverage order, never all at once. Each legacy script is scored on the business risk it protects, high-value tests are rebuilt first, duplicates and brittle scripts are retired rather than ported, and the old suite keeps running until its replacement passes against the same build.

Does AI make automation cheaper?

It speeds up the two most expensive parts — authoring and maintenance. It does not replace judgement: a generated test still needs senior review to confirm it asserts something that actually matters.

Why do functional tests pass while the UI is visibly broken?

A functional test asserts against the DOM and has no opinion about what was painted. A checkout button can render white on white, sit behind a modal overlay or be pushed below the fold and every functional assertion still passes. That gap is what visual diffing covers.

Load, stress, soak or spike — which do we need?

A load test measures behaviour at expected traffic. A stress test pushes past it to find the breaking point. A soak test holds moderate load for hours to surface memory leaks, connection-pool exhaustion and logs filling a disk. A spike test models sudden arrival.