chore(usage telemetry): Freshen up Clearcut logging (#6013)

Co-authored-by: christine betts <chrstn@uw.edu>
Co-authored-by: Jacob Richman <jacob314@gmail.com>
Co-authored-by: matt korwel <matt.korwel@gmail.com>

packages/core/src/test-utils/config.ts

@@ -0,0 +1,36 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { Config, ConfigParameters } from '../config/config.js';
+
+/**
+ * Default parameters used for {@link FAKE_CONFIG}
+ */
+export const DEFAULT_CONFIG_PARAMETERS: ConfigParameters = {
+  usageStatisticsEnabled: true,
+  debugMode: false,
+  sessionId: 'test-session-id',
+  proxy: undefined,
+  model: 'gemini-9001-super-duper',
+  targetDir: '/',
+  cwd: '/',
+};
+
+/**
+ * Produces a config.  Default paramters are set to
+ * {@link DEFAULT_CONFIG_PARAMETERS}, optionally, fields can be specified to
+ * override those defaults.
+ */
+export function makeFakeConfig(
+  config: Partial<ConfigParameters> = {
+    ...DEFAULT_CONFIG_PARAMETERS,
+  },
+): Config {
+  return new Config({
+    ...DEFAULT_CONFIG_PARAMETERS,
+    ...config,
+  });
+}