/**
 * Deterministic "no test coverage" signal for PR reviews (issue #288).
 *
 * `ComplexityReport.files[path].testAssociations` already carries which test
 * files map to each changed source file, but nothing surfaces it in the
 * architectural prompt — the agent can't say "you added 3 files with no
 * tests" without seeing this data. This module serializes it as a
 * `<test_coverage>` block, mirroring the `<removed_exports>` /
 * `<stale_literal_candidates>` precedents: pre-compute the deterministic fact,
 * inject it, and let the agent decide whether it matters for this PR.
 *
 * `testAssociations` is a required `string[]` that defaults to `[]` in TWO
 * situations the type can't distinguish: enrichment ran and genuinely found
 * no test file, OR enrichment never ran (the PR review engine wraps it in
 * try/catch in `packages/review/src/review-pr.ts` and silently no-ops when the
 * repo has no test files at all — see `enrichWithTestAssociations` in
 * `packages/review/src/analysis.ts`). There is no separate flag
 * for "did enrichment run." To avoid manufacturing gaps out of missing data,
 * this module keys off PER-FILE entry presence in `complexityReport.files`
 * rather than trusting every empty array: a changed file with NO entry at all
 * has no complexity data one way or the other and is skipped, not flagged. An
 * empty `testAssociations` is only treated as a real gap on a file that DOES
 * have a report entry. Practically, this also covers "enrichment never ran
 * for any file" — every lookup misses, so the gap list ends up empty and the
 * block renders nothing, matching the "absence of data is not evidence of a
 * gap" principle.
 */
import type { SignalContext } from './signal-context.js';
/**
 * Changed files that have a complexity-report entry but no associated test
 * file. Files with no entry in `complexityReport.files` (not analyzed, or
 * enrichment never ran) are skipped — absence of data is not evidence of a
 * gap. Exposed for testing.
 */
export declare function computeTestCoverageGaps(context: SignalContext): string[];
/**
 * Render the gap list as a `<test_coverage>` block for the agent's initial
 * message. Returns '' when there are no gaps, so callers can append
 * unconditionally. Caps at MAX_FILES with an explicit omission note — no
 * silent truncation. Exposed for testing.
 */
export declare function renderTestCoverageGaps(gaps: string[]): string;
/**
 * Build the `<test_coverage>` section from the review context. Returns ''
 * when every changed file with complexity data has test associations, or when
 * no changed file has complexity data at all.
 */
export declare function renderTestCoverageSection(context: SignalContext): string;
//# sourceMappingURL=test-coverage-signals.d.ts.map