/**
 * THEN Clause Pattern Engine
 *
 * Transforms natural-language THEN clauses from OpenSpec scenarios into
 * framework-specific assertion lines — without any LLM call.
 *
 * Design principles:
 *   - Pure functions only, no I/O
 *   - Each pattern matches a common spec phrase and emits assertions
 *   - Multiple assertions can be emitted per THEN line
 *   - Falls back to a TODO placeholder when no pattern matches
 *   - Framework-aware: same pattern emits different syntax per framework
 *
 * Adding a new pattern:
 *   1. Add a ThenPattern to PATTERNS below
 *   2. Add assertions for every framework in its `assertions` object
 *      (the Record<TestFramework, …> type makes the compiler enforce this)
 */
import type { TestFramework } from '../../types/test-generator.js';
export interface ThenMatch {
    /** Assertion source lines for the given framework */
    lines: string[];
    /** Which THEN clause index this matched */
    thenIndex: number;
    /** true = came from pattern engine; false = placeholder */
    fromPattern: boolean;
}
/**
 * Match THEN clauses against the pattern library and return assertion lines.
 *
 * @param thenClauses  Array of THEN clause strings (one per bullet)
 * @param framework    Target test framework
 * @returns            Array of ThenMatch — one per THEN clause
 */
export declare function matchThenClauses(thenClauses: string[], framework: TestFramework): ThenMatch[];
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