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Structuring a Compose Test

Agent skill
1 skill

Use this skill to structure a Jetpack Compose UI test class the way androidx itself writes them — @MediumTest + @RunWith(AndroidJUnit4::class), a single createComposeRule(StandardTestDispatcher()) rule, hoisted mutableStateOf declared above setContent { }, and the Test → Find → Assert → Act → Re-assert flow. Covers when to use createAndroidComposeRule () for custom Activities, how to drive state from outside the composition via runOnIdle { }, why state must NOT be hoisted inside setContent, and why @get:Rule createComposeRule() and runComposeUiTest { } MUST NOT both appear in the same test. Use when the developer asks "how do I write a Compose test", "where do I declare state", "how do I name the test class", "MediumTest vs LargeTest", "rule.setContent inside @Before", or shows a test class that won't compile or doesn't drive state from outside.

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Claude CodeCodexCursorGitHub CopilotGemini CLI

Supported by the Atlas install prompt. Skill-specific requirements vary.

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About this skill

Use this skill to structure a Jetpack Compose UI test class the way androidx itself writes them — @MediumTest + @RunWith(AndroidJUnit4::class), a single createComposeRule(StandardTestDispatcher()) rule, hoisted mutableStateOf declared above setContent { }, and the Test → Find → Assert → Act → Re-assert flow. Covers when to use createAndroidComposeRule () for custom Activities, how to drive state from outside the composition via runOnIdle { }, why state must NOT be hoisted inside setContent, and why @get:Rule createComposeRule() and runComposeUiTest { } MUST NOT both appear in the same test. Use when the developer asks "how do I write a Compose test", "where do I declare state", "how do I name the test class", "MediumTest vs LargeTest", "rule.setContent inside @Before", or shows a test class that won't compile or doesn't drive state from outside.

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0 potential findings · Scanned 11/4/2026 · Scanner 0.2.1

Content SHA-256: 5aa1d77c63c0af85fd29466aa7683912c1006ac28380828551d58a47cae2dce2

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About this listing

Category
General
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.
Structuring a Compose Test | Agent Skills Atlas