Testing - Kubb

kubb/kit/testing is a separate subpath for the Vitest-backed helpers used to test plugins, generators, and adapters. It stays separate from kubb/kit so importing the authoring toolkit never pulls Vitest into a plugin's runtime dependencies.

plugin.test.ts

typescript

import { createMockedPlugin, renderGeneratorOperation, matchFiles } from 'kubb/kit/testing'

The subpath exports mocking builders, generator runners, and a snapshot matcher:

Export	What it does
`createMockedPlugin`	Builds a minimal plugin for a test without wiring a full config.
`createMockedAdapter`	Builds a minimal adapter for a test without wiring a full config. `parse` returns an empty `InputNode` by default.
`createMockedPluginDriver`	Builds a driver around a set of plugins so a generator runs through its real lifecycle in isolation.
`renderGeneratorSchema`	Calls a generator's `schema()` method against a `SchemaNode` fixture and collects the files it emits.
`renderGeneratorOperation`	Calls a generator's `operation()` method against an `OperationNode` fixture and collects the files it emits.
`renderGeneratorOperations`	Calls a generator's `operations()` method against an array of `OperationNode` fixtures and collects the files it emits.
`matchFiles`	Asserts the generated `FileNode`s match expected paths and contents through file snapshots, the assertion most generator tests end on.