agent updates

test/helpers.js

@@ -0,0 +1,24 @@
+const path = require('node:path');
+
+function makeLogger() {
+  return {
+    debug() {},
+    info() {},
+    warn() {},
+    error() {},
+  };
+}
+
+function near(actual, expected, epsilon = 1e-6) {
+  return Math.abs(actual - expected) <= epsilon;
+}
+
+function fixturePath(...segments) {
+  return path.join(__dirname, ...segments);
+}
+
+module.exports = {
+  makeLogger,
+  near,
+  fixturePath,
+};