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flutter-testing

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업데이트2026년 4월 15일 01:55

Covers Flutter testing across all three layers: unit tests (business logic, ViewModels, repositories), widget tests (UI rendering, interactions, golden regression), and integration/E2E tests (full app flows, native OS interactions). Use this skill when writing any Flutter test, setting up mocking with mocktail or mockito, implementing golden file tests, debugging async failures (pumpAndSettle timeouts, Timer leaks, FakeAsync deadlocks), fixing cross-platform golden pixel diffs in CI/CD, testing state management (Riverpod/BLoC/Provider), handling permission dialogs or native system UI with Patrol, or troubleshooting MediaQuery/Theme missing errors in widget tests.

설치

Codex 또는 Claude로 설치 이 Prompt를 복사해 Codex, Claude 또는 다른 어시스턴트에 붙여 넣으면 Skill 페이지를 검토하고 설치를 진행할 수 있습니다.

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Poorgramer-Zack

Poorgramer-Zack/flutter-agent-panel

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다운로드

Manus에서 실행

Flutter Testing Guide

Overview

Flutter testing follows a three-layer pyramid: Unit (fast, pure Dart logic) → Widget (UI component rendering) → Integration/E2E (full device flows). Each layer has distinct tooling and tradeoffs. Load the relevant reference based on what you need to test.

Process

Phase 1: Choose the Right Layer

Identify the testing tier before writing any code. Wrong tier = wasted effort.

🧱 Testing Fundamentals — Decision tree for choosing unit/widget/integration, MVVM isolation patterns, and project structure.

Phase 2: Write Tests with Correct APIs

Apply AAA (Arrange-Act-Assert), proper pump usage, and matcher selection.

🛠️ Core Testing — Unit test groups/setUp/tearDown, widget test pump patterns, integration test binding setup, and async troubleshooting (FakeAsync, runAsync, Timer leaks).

Phase 3: Mocking, Goldens, and E2E

Isolate external dependencies, lock UI visuals, and validate native OS interactions.

🧪 Advanced Tools — Mocktail/Mockito, golden tests with cross-platform tolerance, Patrol 4.0 E2E (native permission dialogs, notifications), patrol_finders for widget tests.

Phase 4: Diagnose Failures

Resolve production testing failures in CI/CD pipelines.

🔧 Troubleshooting — Async errors, golden pixel diffs, MediaQuery crashes, Timer memory leaks, flaky mock configurations.

📚 Reference Library

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name	flutter-testing
description	Covers Flutter testing across all three layers: unit tests (business logic, ViewModels, repositories), widget tests (UI rendering, interactions, golden regression), and integration/E2E tests (full app flows, native OS interactions). Use this skill when writing any Flutter test, setting up mocking with mocktail or mockito, implementing golden file tests, debugging async failures (pumpAndSettle timeouts, Timer leaks, FakeAsync deadlocks), fixing cross-platform golden pixel diffs in CI/CD, testing state management (Riverpod/BLoC/Provider), handling permission dialogs or native system UI with Patrol, or troubleshooting MediaQuery/Theme missing errors in widget tests.
metadata	{"last_modified":"2026-04-01 14:35:00 (GMT+8)"}

Flutter Testing Guide

Overview

Process

Phase 1: Choose the Right Layer

Identify the testing tier before writing any code. Wrong tier = wasted effort.

🧱 Testing Fundamentals — Decision tree for choosing unit/widget/integration, MVVM isolation patterns, and project structure.

Phase 2: Write Tests with Correct APIs

Apply AAA (Arrange-Act-Assert), proper pump usage, and matcher selection.

🛠️ Core Testing — Unit test groups/setUp/tearDown, widget test pump patterns, integration test binding setup, and async troubleshooting (FakeAsync, runAsync, Timer leaks).

Phase 3: Mocking, Goldens, and E2E

Isolate external dependencies, lock UI visuals, and validate native OS interactions.

🧪 Advanced Tools — Mocktail/Mockito, golden tests with cross-platform tolerance, Patrol 4.0 E2E (native permission dialogs, notifications), patrol_finders for widget tests.

Phase 4: Diagnose Failures

Resolve production testing failures in CI/CD pipelines.

🔧 Troubleshooting — Async errors, golden pixel diffs, MediaQuery crashes, Timer memory leaks, flaky mock configurations.