/**
 * Declares a suite asserting that a repo's test files hold to nmr's conventions: every collected file names an
 * isolation tier, and every test file sits under a `__tests__` directory.
 *
 * Wire it from a one-line test of the repo's own, so the file stays under the repo's `__tests__` and the repo
 * scopes what the sweep covers. Both halves are silent without it: `unit` is the residual project, so an untiered
 * file runs and passes, and a file outside `__tests__` is collected by nothing at all.
 *
 * `exclude` names directory basenames the sweep prunes at any depth, additive to the ones nmr always prunes. Pass
 * the same array to `defineVitestConfig`'s `testCollectionExclude`, or the sweep and the collection glob describe
 * different trees: a directory pruned here alone still runs the files this suite stopped reporting.
 */
export declare function checkTestFileConventions(options?: TestFileConventionsOptions): void;
/**
 * Sweeps a repo for both halves of the convention, reporting the root it swept alongside what it found.
 *
 * The root is what makes the result trustworthy, and it is the one thing an assertion cannot check: a sweep
 * started from the directory Vitest supplies covers one package, finds nothing, and passes.
 *
 * @internal - Exported only to enable testing
 */
export declare function reportTestFileConventions({ exclude, rootDir, }?: TestFileConventionsOptions): TestFileConventionsReport;
export interface TestFileConventionsOptions {
    /**
     * Directory basenames the sweep prunes at any depth, additive to the ones nmr always prunes. The array a repo
     * passes here is the array it passes to `defineVitestConfig`'s `testCollectionExclude`.
     */
    exclude?: readonly string[];
    /**
     * The directory to sweep. Defaults to the monorepo root found from the working directory, so one call covers the
     * whole repo from whichever package Vitest started in.
     */
    rootDir?: string;
}
/** What one sweep found, and the root it found it in. Paths are relative to that root and POSIX-separated. */
export interface TestFileConventionsReport {
    misplaced: string[];
    rootDir: string;
    untiered: string[];
}