TestExtensionManager is the main test suite for ExtensionManager

TestExtensionManagerErrors tests error cases

TestExtensionManagerWithInvalidConfig tests handling of invalid configurations

TestExtensionValueMixedInputAndVariable ensures an extension value mixing {{input}} and another template variable is processed.

TestExtensionValueWithSentinel specifically tests the extension value sentinel replacement logic

Test ExtractTextWithCitations from geminicommon

A 429 with no cache yields a concise message, not the raw HTML body.

A 429 with a stale cache present returns the stale list rather than erroring.

Ensures we can fetch models directly when a provider returns a direct array of models instead of the standard OpenAI list response structure.

Ensures we handle empty model lists correctly

Ensures the GitHub Models catalog host receives the documented API version header so it is not throttled by GitHub's edge rate limiter.

Ensures non-GitHub hosts do not receive the GitHub-specific API version header.

Ensures we can fetch models when a provider returns the standard OpenAI format

A fresh cache short-circuits before any network call.

A successful fetch is cached, so a later failure is served from cache.

Test generateWAVFile method (basic test)

TestHashConsistency ensures both hash functions produce same results for same content

Test isTTSModel method