/**
 * Test Integrity Validator
 *
 * Detects circular test validation — the problem where AI agents generate
 * tests that only pass because they test the agent's own output, not real
 * behavior. A test that passes on both the pre-change and post-change
 * codebase proves nothing about the change.
 *
 * Strategy:
 * 1. Snapshot which test files existed before the agent ran
 * 2. After the run, identify NEW test files the agent created
 * 3. For each new test: check if it imports/references pre-existing code
 *    (real test) or only references agent-generated code (circular test)
 * 4. Flag tests that don't exercise any pre-existing function
 *
 * This module provides the analysis primitives. The verification pipeline
 * calls these during the post-run verification step.
 */
export interface TestIntegrityReport {
    totalNewTests: number;
    realTests: number;
    suspiciousTests: number;
    findings: TestIntegrityFinding[];
    verdict: "pass" | "warn" | "fail";
    summary: string;
}
export interface TestIntegrityFinding {
    filePath: string;
    issue: "no_pre_existing_imports" | "self_referential" | "trivial_assertion" | "empty_test";
    severity: "high" | "medium" | "low";
    detail: string;
}
/**
 * Detect test files in a directory tree.
 */
export declare function findTestFiles(rootDir: string): string[];
/**
 * Check if a filename matches test file patterns.
 */
export declare function isTestFile(filename: string, fullPath?: string): boolean;
/**
 * Snapshot existing test files before an agent run.
 */
export declare function snapshotTestFiles(rootDir: string): Set<string>;
/**
 * Identify new test files created during an agent run.
 */
export declare function identifyNewTests(rootDir: string, preRunSnapshot: Set<string>): string[];
/**
 * Extract import paths from a TypeScript/JavaScript file.
 */
export declare function extractImports(content: string): string[];
/**
 * Check if a test file contains only trivial assertions.
 */
export declare function hasTrivialAssertionsOnly(content: string): boolean;
/**
 * Check if a test file imports any pre-existing source files.
 */
export declare function importsPreExistingCode(testContent: string, preRunSourceFiles: Set<string>): boolean;
/**
 * Validate the integrity of tests created during a governed run.
 */
export declare function validateTestIntegrity(rootDir: string, preRunTestSnapshot: Set<string>, preRunSourceFiles: Set<string>): TestIntegrityReport;