import type { CreateOpts, SandboxHandle, SandboxSubstrate, SandboxSummary } from '../../src/index.js';
export interface FakeSandboxHandleOpts {
    sandboxId?: string;
    /** /tmp/slicc-join.json contents to return from readFile. */
    joinJson?: string;
    /** stdout for handle.run() (the kick curl); default '200'. */
    runStdout?: string;
    /** exit code for handle.run(); default 0. */
    runExitCode?: number;
    /** stderr for handle.run(); default ''. */
    runStderr?: string;
    /** Optional: throw on kill (e.g., not-found discrimination tests). */
    killError?: Error;
    /** Captures all writeFile calls. */
    writes?: Array<{
        path: string;
        contents: string | Uint8Array;
    }>;
}
export declare function makeFakeHandle(opts?: FakeSandboxHandleOpts): SandboxHandle;
export interface FakeSubstrateOpts {
    /** Handle returned by connect(). Defaults to a vanilla fake handle. */
    handle?: SandboxHandle;
    /** If set, connect() throws this. Useful for not-found tests. */
    connectError?: Error;
    /** Override create(); default returns the same handle. */
    onCreate?: (opts: CreateOpts) => Promise<SandboxHandle>;
    /** Captures all create() calls. */
    creates?: CreateOpts[];
    /** List result to return; default []. */
    listResult?: SandboxSummary[];
    /** Captures all extendTimeout calls. */
    timeoutCalls?: Array<{
        sandboxId: string;
        ttlMs: number;
    }>;
}
export declare function makeFakeSubstrate(opts?: FakeSubstrateOpts): SandboxSubstrate;
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