FixtureSpec

One fixture in authoring, built up by `scenario()` and its refiners (`.at()`/`.override()`).

One fixture in authoring, built up by scenario() and its refiners (.at()/.override()). Immutable — every refiner returns a NEW spec, so a shared base can fork per state without one state’s edits bleeding into another’s.

Import from @homepages/template-kit/fixtures.

Signature

export class FixtureSpec<S> {
    declare readonly __schema?: S;
    constructor(readonly state: SpecState) { }
    at(variantCase: string): FixtureSpec<S> {
        return new FixtureSpec<S>({
            ...this.state,
            variantCase,
        });
    }
    label(text: string): FixtureSpec<S> {
        return new FixtureSpec<S>({ ...this.state, label: text });
    }
    override<M extends object>(partial: ExactMap<M, OverrideSlots<S>>): FixtureSpec<S> {
        return new FixtureSpec<S>({
            ...this.state,
            overrides: { ...this.state.overrides, ...(partial as Record<string, unknown>) },
        });
    }
}

See also