Product documentationUpdated Jul 6, 2026
Generate Endpoint Test Cases
Use Generate tests on the endpoint test-case screen to create critical tests first, then fill coverage gaps—across many test strategies with business-impact severity.
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Test Management
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13 articles.
- Product documentationUpdated Jul 17, 2026
Test Cases: Open, Edit, and Save
Edit a test's request, assertions, and expected response; run and delete in bulk; and use the coverage verdict to find the gaps your suite still has.
Read article - Product documentationUpdated Jul 6, 2026
Test Configuration
Define environments, variables, headers, and datasets so tests run consistently across dev/stage/prod without hardcoding secrets or setup.
Read article - Product documentationUpdated Mar 18, 2026
Execution Mode
Choose where tests run: Shift-Left Engine on server for CI/CD and schedules, or Shift-Left Agent locally for development and private APIs.
Read article - Product documentationUpdated Mar 18, 2026
Run Tests and Review Results
Run endpoint test cases from the actions column, monitor progress, and review detailed test-result summaries with assertions and logs.
Read article - Product documentationUpdated Jul 6, 2026
Test Generation Settings
Control per project which requirement types the AI extracts, which test strategies fire, and which severity tiers are kept—so generation focuses on what matters for that project.
Read article - Product documentationUpdated Jul 6, 2026
Fix Tests with AI
When a test fails, use Fix with AI to get a proposed patch you can review and apply—plus a fix-suggestion lifecycle that classifies whether the failure is a bad test or a product bug.
Read article - Product documentationUpdated Sep 27, 2026
File Uploads and Form Bodies
Many APIs don't take JSON. A login or OAuth token endpoint may expect an HTML-style form. An avatar or document upload expects a multipart form with a file in it.
Read article - Product documentationUpdated Sep 27, 2026
Assertion Results and Custom Checks
Read assertion results row by row (expected, actual, passed), and write custom checks whose script log appears right under the result when they fail.
Read article - Product documentationUpdated Sep 27, 2026
Fix with AI: Grounded Repair
How Fix with AI grounds each proposed repair in your API contract, your requirements and the last run, and what the workbench Diagnostics show about what was actually sent.
Read article - Product documentationUpdated Sep 27, 2026
JSON-RPC 2.0 and MCP Server Testing
Shift-Left Studio tests JSON-RPC 2.0 services and Model Context Protocol (MCP) servers alongside your REST, SOAP and GraphQL APIs. An MCP server is a JSON-RPC 2.0 server with a fixed set of methods, so the same capability covers both.
Read article - Product documentationUpdated Sep 27, 2026
WebSocket-RPC Testing
Some services are not called with independent HTTP requests. You open a WebSocket connection, sign in once during the handshake, and then send a series of calls over that same connection.
Read article - Product documentationUpdated Sep 27, 2026
Testing Server-Sent Events (Streaming) Responses
Test endpoints that answer with text/event-stream: see each event in the response viewer, assert on events, and stream with limits on events, duration and idle time.
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