1efb1b3176
Step 4 of v2.0 plan. statusLine hook reads context_window.used_percentage from stdin payload and prints display-only hint at 60% / 70%. NEVER runs git (research/03 — statusLine scripts can be cancelled mid-flight, unsafe for side effects). 9 tests cover thresholds, null payload, malformed JSON. Includes hook-helper.mjs copied from llm-security as test infrastructure.
42 lines
1.5 KiB
JavaScript
42 lines
1.5 KiB
JavaScript
// hook-helper.mjs — Shared test helper for hook scripts.
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// Spawns a hook as a child process and feeds it JSON via stdin.
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import { execFile } from 'node:child_process';
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/**
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* Run a hook script by spawning `node <scriptPath>` and piping `input` to stdin.
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*
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* @param {string} scriptPath - Absolute path to the hook .mjs file
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* @param {object|string} input - JSON payload (object will be stringified)
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* @returns {Promise<{ code: number, stdout: string, stderr: string }>}
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*/
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export function runHook(scriptPath, input) {
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return runHookWithEnv(scriptPath, input, {});
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}
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/**
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* Run a hook script with custom environment variables.
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*
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* @param {string} scriptPath - Absolute path to the hook .mjs file
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* @param {object|string} input - JSON payload (object will be stringified)
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* @param {Record<string, string>} envOverrides - Extra env vars to set
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* @returns {Promise<{ code: number, stdout: string, stderr: string }>}
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*/
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export function runHookWithEnv(scriptPath, input, envOverrides) {
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return new Promise((resolve) => {
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const env = { ...process.env, ...envOverrides };
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const child = execFile(
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'node',
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[scriptPath],
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{ timeout: 5000, env },
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(err, stdout, stderr) => {
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resolve({
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code: child.exitCode ?? (err && err.code === 'ERR_CHILD_PROCESS_STDIO_FINAL' ? 0 : 1),
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stdout: stdout || '',
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stderr: stderr || '',
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});
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}
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);
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child.stdin.end(typeof input === 'string' ? input : JSON.stringify(input));
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});
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}
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