Use this skill to drive the Compose test clock by hand with MainTestClock — currentTime, autoAdvance, advanceTimeByFrame, advanceTimeBy(milliseconds, ignoreFrameDuration), and advanceTimeUntil. Explains the 16 ms frame delay used by TestMonotonicFrameClock, the per-frame ordering where withFrameNanos awaiters resume before recomposition, and how the recomposer and MainTestClock share one TestCoroutineScheduler. Covers v1 versus v2 entry-point dispatcher differences (UnconfinedTestDispatcher vs StandardTestDispatcher) and when an explicit runCurrent or advanceTimeBy(0) is required after migration. If the user mentions MainTestClock, mainClock.advanceTimeBy, mainClock.advanceTimeByFrame, mainClock.advanceTimeUntil, ComposeTimeoutException, frame delay, TestCoroutineScheduler, "test clock vs wall clock", or "v2 createComposeRule queues tasks", use this skill.
Install with
Claude CodeCodexCursorGitHub CopilotGemini CLI
Supported by the Atlas install prompt. Skill-specific requirements vary.
Skill stats
Skills1CategoryEngineeringStars0
About this skill
Use this skill to drive the Compose test clock by hand with MainTestClock — currentTime, autoAdvance, advanceTimeByFrame, advanceTimeBy(milliseconds, ignoreFrameDuration), and advanceTimeUntil. Explains the 16 ms frame delay used by TestMonotonicFrameClock, the per-frame ordering where withFrameNanos awaiters resume before recomposition, and how the recomposer and MainTestClock share one TestCoroutineScheduler. Covers v1 versus v2 entry-point dispatcher differences (UnconfinedTestDispatcher vs StandardTestDispatcher) and when an explicit runCurrent or advanceTimeBy(0) is required after migration. If the user mentions MainTestClock, mainClock.advanceTimeBy, mainClock.advanceTimeByFrame, mainClock.advanceTimeUntil, ComposeTimeoutException, frame delay, TestCoroutineScheduler, "test clock vs wall clock", or "v2 createComposeRule queues tasks", use this skill.
Quick start
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Use this skill to drive the Compose test clock by hand with MainTestClock — currentTime, autoAdvance, advanceTimeByFrame, advanceTimeBy(milliseconds, ignoreFrameDuration), and advanceTimeUntil. Explains the 16 ms frame delay used by TestMonotonicFrameClock, the per-frame ordering where withFrameNanos awaiters resume before recomposition, and how the recomposer and MainTestClock share one TestCoroutineScheduler. Covers v1 versus v2 entry-point dispatcher differences (UnconfinedTestDispatcher vs StandardTestDispatcher) and when an explicit runCurrent or advanceTimeBy(0) is required after migration. If the user mentions MainTestClock, mainClock.advanceTimeBy, mainClock.advanceTimeByFrame, mainClock.advanceTimeUntil, ComposeTimeoutException, frame delay, TestCoroutineScheduler, "test clock vs wall clock", or "v2 createComposeRule queues tasks", use this skill.
About this listing
Category
Engineering
Reported license
Apache-2.0
Listing language (estimated)
English
Review status
Not individually reviewed
Agent compatibility
Atlas installation supports Claude Code, Codex, and Cursor. Skill-specific dependencies and features are checked during setup.
Claude Code
Codex
Cursor
GitHub Copilot
Gemini CLI