Flaky Test Diagnosis

Help me diagnose a flaky test that passes and fails inconsistently. Test and context: {{test_context}}. Walk through the common causes (timing and race conditions, shared or leaking state between tests, dependence on order, real time or randomness, external dependencies, async not properly awaited), how to identify which applies, and how to fix it to be deterministic. Note why flaky tests are dangerous (they erode trust and hide real failures) and how to make tests reliable. Stack and framework: {{stack}}.