/** Languages with path conventions implemented by {@link isTestFile}. */
export declare const TEST_DETECTION_LANGUAGES: ReadonlySet<string>;
export type TestDetectionDecision = 'supported' | 'unsupported';
/** Every language's explicit path-detection decision, derived from this module's rules. */
export declare const TEST_DETECTION_DECISIONS: ReadonlyMap<string, TestDetectionDecision>;
/**
 * What a path-only decision cannot see for a language, in the words a disclosure can use.
 *
 * `TEST_DETECTION_DECISIONS` reports a language `supported` as soon as ONE path convention
 * exists, so Rust read as fully covered while 79% of a real workspace's tests — every inline
 * `#[cfg(test)]` module — were invisible. A consumer that reports a coverage gap must say this
 * rather than imply the path rules are the whole story.
 */
export declare const TEST_DETECTION_CAVEATS: ReadonlyMap<string, string>;
export declare function isTestFile(filePath: string): boolean;
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