/**
 * Streaming Progress — Real-time progress during test execution.
 *
 * @example
 * ```
 * Running tests... [████████░░] 80% (8/10)
 *   ✓ test-1 (0.5s, $0.002)
 *   ✓ test-2 (1.2s, $0.005)
 *   ✗ test-3 FAILED: expected tool_called:search (0.8s)
 *   ⏳ test-4 running...
 * ```
 */
import type { SuiteResult } from './types';
export type TestStatus = 'pending' | 'running' | 'passed' | 'failed' | 'skipped';
export interface ProgressEntry {
    name: string;
    status: TestStatus;
    duration_ms?: number;
    cost_usd?: number;
    error?: string;
}
export interface ProgressState {
    total: number;
    completed: number;
    entries: ProgressEntry[];
    startTime: number;
}
export interface ProgressOptions {
    /** Width of the progress bar in characters (default: 30) */
    barWidth?: number;
    /** Show cost per test (default: true) */
    showCost?: boolean;
    /** Show duration per test (default: true) */
    showDuration?: boolean;
    /** Use color codes (default: true) */
    color?: boolean;
    /** Stream to write output (default: process.stderr) */
    stream?: NodeJS.WritableStream;
}
export type ProgressCallback = (state: ProgressState) => void;
/**
 * Render a progress bar string.
 */
export declare function renderProgressBar(completed: number, total: number, width?: number): string;
/**
 * Format a single test entry for display.
 */
export declare function formatEntry(entry: ProgressEntry, options?: ProgressOptions): string;
/**
 * Format the full progress display.
 */
export declare function formatProgress(state: ProgressState, options?: ProgressOptions): string;
/**
 * Track progress of test execution.
 */
export declare class ProgressTracker {
    private state;
    private options;
    private callback?;
    constructor(total: number, options?: ProgressOptions);
    /**
     * Register a callback for progress updates.
     */
    onProgress(cb: ProgressCallback): void;
    /**
     * Add a pending test.
     */
    addTest(name: string): void;
    /**
     * Mark a test as running.
     */
    startTest(name: string): void;
    /**
     * Mark a test as passed.
     */
    passTest(name: string, duration_ms?: number, cost_usd?: number): void;
    /**
     * Mark a test as failed.
     */
    failTest(name: string, error?: string, duration_ms?: number, cost_usd?: number): void;
    /**
     * Mark a test as skipped.
     */
    skipTest(name: string): void;
    /**
     * Get current progress state.
     */
    getState(): ProgressState;
    /**
     * Render the current progress display.
     */
    render(): string;
    /**
     * Get elapsed time in ms.
     */
    elapsed(): number;
    /**
     * Build a summary line after completion.
     */
    summary(): string;
    private completeTest;
    private emit;
}
/**
 * Create a ProgressTracker from suite results (for post-hoc rendering).
 */
export declare function fromSuiteResult(result: SuiteResult, options?: ProgressOptions): ProgressTracker;
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