docs: document script lib test helpers

scripts/lib/ts-guard-utils.mjs

@@ -1,3 +1,4 @@
+// Shared TypeScript AST and source-file helpers for guard scripts.
 import { existsSync, promises as fs } from "node:fs";
 import { createRequire } from "node:module";
 import path from "node:path";
@@ -13,6 +14,9 @@ function getTypeScript() {
 
 const baseTestSuffixes = [".test.ts", ".test-utils.ts", ".test-harness.ts", ".e2e-harness.ts"];
 
+/**
+ * Resolves the repository root by walking upward from the caller module.
+ */
 export function resolveRepoRoot(importMetaUrl) {
   // Walk up from the caller's directory until we find the repo root (.git).
   // This handles callers at any depth (scripts/*.mjs, scripts/lib/*.mjs, etc.)
@@ -29,6 +33,9 @@ export function resolveRepoRoot(importMetaUrl) {
   return path.resolve(path.dirname(fileURLToPath(importMetaUrl)), "..", "..");
 }
 
+/**
+ * Converts repo-relative source roots into absolute paths.
+ */
 export function resolveSourceRoots(repoRoot, relativeRoots) {
   return relativeRoots.map((root) => path.join(repoRoot, ...root.split("/").filter(Boolean)));
 }
@@ -38,6 +45,9 @@ function isTestLikeTypeScriptFile(filePath, options = {}) {
   return [...baseTestSuffixes, ...extraTestSuffixes].some((suffix) => filePath.endsWith(suffix));
 }
 
+/**
+ * Recursively collects TypeScript files under a file or directory target.
+ */
 export async function collectTypeScriptFiles(targetPath, options = {}) {
   const includeTests = options.includeTests ?? false;
   const extraTestSuffixes = options.extraTestSuffixes ?? [];
@@ -92,6 +102,9 @@ export async function collectTypeScriptFiles(targetPath, options = {}) {
   return out;
 }
 
+/**
+ * Collects TypeScript files from multiple roots, ignoring missing roots by default.
+ */
 export async function collectTypeScriptFilesFromRoots(sourceRoots, options = {}) {
   return (
     await Promise.all(
@@ -106,6 +119,9 @@ export async function collectTypeScriptFilesFromRoots(sourceRoots, options = {})
   ).flat();
 }
 
+/**
+ * Runs a guard's violation scanner across collected TypeScript source files.
+ */
 export async function collectFileViolations(params) {
   const files = await collectTypeScriptFilesFromRoots(params.sourceRoots, {
     extraTestSuffixes: params.extraTestSuffixes,
@@ -128,10 +144,16 @@ export async function collectFileViolations(params) {
   return violations;
 }
 
+/**
+ * Returns the one-based source line for a TypeScript AST node.
+ */
 export function toLine(sourceFile, node) {
   return sourceFile.getLineAndCharacterOfPosition(node.getStart(sourceFile)).line + 1;
 }
 
+/**
+ * Extracts text from identifier, string, or numeric property names.
+ */
 export function getPropertyNameText(name) {
   const ts = getTypeScript();
   if (ts.isIdentifier(name) || ts.isStringLiteral(name) || ts.isNumericLiteral(name)) {
@@ -140,6 +162,9 @@ export function getPropertyNameText(name) {
   return null;
 }
 
+/**
+ * Removes harmless expression wrappers before AST shape checks.
+ */
 export function unwrapExpression(expression) {
   const ts = getTypeScript();
   let current = expression;
@@ -160,6 +185,9 @@ export function unwrapExpression(expression) {
   }
 }
 
+/**
+ * Collects one-based line numbers for call expressions selected by a callback.
+ */
 export function collectCallExpressionLines(ts, sourceFile, resolveLineNode) {
   const lines = [];
   const visit = (node) => {
@@ -183,6 +211,9 @@ function isDirectExecution(importMetaUrl) {
   return path.resolve(entry) === fileURLToPath(importMetaUrl);
 }
 
+/**
+ * Runs a script main function only when the module is the direct entrypoint.
+ */
 export function runAsScript(importMetaUrl, main) {
   if (!isDirectExecution(importMetaUrl)) {
     return;

scripts/lib/tsdown-output-roots.mjs

@@ -1,3 +1,4 @@
+// Lists package dist roots produced by tsdown builds.
 const TSDOWN_PACKAGE_NAMES = [
   "agent-core",
   "gateway-client",
@@ -16,8 +17,14 @@ const TSDOWN_PACKAGE_NAMES = [
   "acp-core",
 ];
 
+/**
+ * Dist roots for all packages built through the shared tsdown pipeline.
+ */
 export const TSDOWN_PACKAGE_OUTPUT_ROOTS = TSDOWN_PACKAGE_NAMES.map(packageOutputRoot);
 
+/**
+ * Returns the dist root for a known tsdown package name.
+ */
 export function tsdownPackageOutputRoot(packageName) {
   if (!TSDOWN_PACKAGE_NAMES.includes(packageName)) {
     throw new Error(`Unknown tsdown package output root: ${packageName}`);

scripts/lib/tsgo-sparse-guard.mjs

@@ -1,3 +1,4 @@
+// Detects sparse-checkout gaps before tsgo runs core TypeScript projects.
 import { spawnSync } from "node:child_process";
 import fs from "node:fs";
 import path from "node:path";
@@ -50,11 +51,17 @@ const CORE_TEST_REQUIRED_PATHS = [
   "ui/src/ui/gateway.ts",
 ];
 
+/**
+ * Reports whether the caller explicitly opted out of sparse tsgo guard errors.
+ */
 export function shouldSkipSparseTsgoGuardError(env = process.env) {
   const value = env[TSGO_SPARSE_SKIP_ENV_KEY]?.trim().toLowerCase();
   return value === "1" || value === "true";
 }
 
+/**
+ * Creates an environment that suppresses recursive sparse tsgo guard checks.
+ */
 export function createSparseTsgoSkipEnv(baseEnv = process.env) {
   return {
     ...baseEnv,
@@ -62,6 +69,9 @@ export function createSparseTsgoSkipEnv(baseEnv = process.env) {
   };
 }
 
+/**
+ * Builds the sparse-checkout diagnostic for core tsgo projects, when needed.
+ */
 export function getSparseTsgoGuardError(
   args,
   {

scripts/lib/vitest-batch-runner.mjs

@@ -1,3 +1,4 @@
+// Runs grouped Vitest batches through the repo pnpm wrapper.
 import path from "node:path";
 import { fileURLToPath, pathToFileURL } from "node:url";
 import { spawnPnpmRunner } from "../pnpm-runner.mjs";
@@ -10,6 +11,9 @@ const scriptFile = fileURLToPath(import.meta.url);
 const scriptDir = path.dirname(scriptFile);
 const repoRoot = path.resolve(scriptDir, "../..");
 
+/**
+ * Runs one Vitest batch and forwards process-group cleanup signals.
+ */
 export async function runVitestBatch(params) {
   return await new Promise((resolve, reject) => {
     let forwardedSignal;
@@ -46,10 +50,16 @@ export async function runVitestBatch(params) {
   });
 }
 
+/**
+ * Builds pnpm arguments for a Vitest batch run.
+ */
 export function buildVitestBatchPnpmArgs(params) {
   return ["exec", "vitest", "run", "--config", params.config, ...params.args, ...params.targets];
 }
 
+/**
+ * Checks whether a module URL is the current direct script entrypoint.
+ */
 export function isDirectScriptRun(metaUrl) {
   const entryHref = process.argv[1] ? pathToFileURL(path.resolve(process.argv[1])).href : "";
   return metaUrl === entryHref;

scripts/lib/vitest-report-cli-utils.mjs

@@ -1,6 +1,10 @@
+// Shared CLI parsing and formatting helpers for Vitest report scripts.
 import { readJsonFile, runVitestJsonReport } from "../test-report-utils.mjs";
 import { intFlag, parseFlagArgs, stringFlag } from "./arg-utils.mjs";
 
+/**
+ * Parses common Vitest report flags with caller-provided defaults.
+ */
 export function parseVitestReportArgs(argv, defaults) {
   return parseFlagArgs(
     argv,
@@ -17,6 +21,9 @@ export function parseVitestReportArgs(argv, defaults) {
   );
 }
 
+/**
+ * Runs Vitest JSON reporting from parsed args and loads the generated report.
+ */
 export function loadVitestReportFromArgs(args, prefix) {
   const reportPath = runVitestJsonReport({
     config: args.config,
@@ -26,6 +33,9 @@ export function loadVitestReportFromArgs(args, prefix) {
   return readJsonFile(reportPath);
 }
 
+/**
+ * Formats milliseconds with a fixed decimal precision.
+ */
 export function formatMs(value, digits = 1) {
   return `${value.toFixed(digits)}ms`;
 }

scripts/lib/vitest-shard-timings.mjs

@@ -1,3 +1,4 @@
+// Persists per-shard Vitest timing samples for later scheduling.
 import { createHash } from "node:crypto";
 import fs from "node:fs";
 import path from "node:path";
@@ -25,6 +26,9 @@ function resolveShardTimingsPath(cwd = process.cwd(), env = process.env) {
   return env[TIMINGS_FILE_ENV_KEY] || path.join(cwd, ".artifacts", "vitest-shard-timings.json");
 }
 
+/**
+ * Resolves the stable timing key for a Vitest shard specification.
+ */
 export function resolveShardTimingKey(spec) {
   if (!Array.isArray(spec.includePatterns) || spec.includePatterns.length === 0) {
     return spec.config;
@@ -40,6 +44,9 @@ export function resolveShardTimingKey(spec) {
   )}`;
 }
 
+/**
+ * Creates a timing sample for completed non-watch Vitest shard runs.
+ */
 export function createShardTimingSample(spec, durationMs) {
   if (spec.watchMode || !Number.isFinite(durationMs) || durationMs <= 0) {
     return null;
@@ -54,6 +61,9 @@ export function createShardTimingSample(spec, durationMs) {
   };
 }
 
+/**
+ * Reads persisted shard timing averages, returning an empty map when disabled.
+ */
 export function readShardTimings(cwd = process.cwd(), env = process.env) {
   if (!shouldUseShardTimings(env)) {
     return new Map();
@@ -78,6 +88,9 @@ export function readShardTimings(cwd = process.cwd(), env = process.env) {
   }
 }
 
+/**
+ * Merges new shard timing samples into the persisted local timing artifact.
+ */
 export function writeShardTimings(samples, cwd = process.cwd(), env = process.env) {
   if (!shouldUseShardTimings(env) || samples.length === 0) {
     return;

scripts/lib/workspace-bootstrap-smoke.mjs

@@ -1,8 +1,12 @@
+// Verifies installed packages can bootstrap the default OpenClaw workspace files.
 import { execFileSync } from "node:child_process";
 import { existsSync, mkdtempSync, mkdirSync, rmSync } from "node:fs";
 import { tmpdir } from "node:os";
 import { dirname, join } from "node:path";
 
+/**
+ * Template pack files that must be present in installed packages.
+ */
 export const WORKSPACE_TEMPLATE_PACK_PATHS = [
   "docs/reference/templates/AGENTS.md",
   "docs/reference/templates/SOUL.md",
@@ -26,6 +30,9 @@ const REQUIRED_BOOTSTRAP_WORKSPACE_FILES = [
 const WORKSPACE_BOOTSTRAP_SMOKE_TIMEOUT_MS = 15_000;
 const SAFE_UNIX_SMOKE_PATH = "/usr/bin:/bin";
 
+/**
+ * Creates a minimal isolated environment for workspace bootstrap smoke runs.
+ */
 export function createWorkspaceBootstrapSmokeEnv(env, homeDir, overrides = {}) {
   const allowlistedEnvEntries = [
     "TMPDIR",
@@ -90,6 +97,9 @@ function describeExecFailure(error) {
   return [error.message, stdout, stderr].filter(Boolean).join(" | ");
 }
 
+/**
+ * Runs the installed CLI workspace bootstrap smoke and validates created files.
+ */
 export function runInstalledWorkspaceBootstrapSmoke(params) {
   const tempRoot = mkdtempSync(join(tmpdir(), "openclaw-workspace-bootstrap-smoke-"));
   const homeDir = join(tempRoot, "home");