Validation Lab

HAKDOGAN.COM

Core UI Testing

  • DashboardLIVE

    Overview & Metrics

Real User Flows

  • Bug PlaygroundNEW

    Login required · Manual + Automation

Automation Lab

  • Code LabNEW

    Playwright / Selectors / POM

Data & API

  • API Testing LabNEW

    Contracts / Bugs / Playwright

Reporting

  • Edge CasesDEMO

    Validation / Negative Cases

Portfolio

  • Portfolio

    hakdogan.com

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VALIDATION LAB•DATA & API

Data & API

Tables · JSON · Requests

Where the front-end meets the back-end. Each module exposes a stable surface — searchable user tables, mock REST and GraphQL endpoints, paginated APIs, query-param filters, CSV exports — so you can author tests that pin both the UI and the contract.

Tables

TablesIntermediate

User Table — Search + Sort

Search by partial name/email, sort by signups asc/desc, paginate, and verify the visible row count + page metadata reflect every operation.

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TablesBeginner

Pagination API

Step through a paged list, confirm the rendered URL changes between pages, and verify the metadata block shows the right `start-end of total`.

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Requests

RequestsIntermediate

Fake REST API

Send canned REST requests and receive deterministic JSON responses; toggle a forced 500 to drive negative-path coverage.

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RequestsAdvanced

GraphQL Playground

Edit the query and variables, execute against a canned schema, and verify both the success and the malformed-variables paths.

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RequestsIntermediate

Filter Query Params

Compose a multi-axis filter (role + status + search) and confirm the query string reflects the active filters in stable order.

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RequestsIntermediate

CSV Export Validation

Pick a scope (all / active / admins), generate the CSV, and verify the header row, the comma-escaping in names, and the filename pattern on download.

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