ArkUI TDD Testing Patterns FAQs

Question 1

What is a 'documentation-only' test and why is it prohibited?

Accepted Answer

These are tests that contain descriptive comments but lack real assertions (e.g., using EXPECT_TRUE(true)). They are prohibited because they waste maintenance resources without actually verifying code behavior.

Question 2

How should I verify API names before writing tests?

Accepted Answer

The skill recommends using Grep or Read tools to check header files for exact method definitions, which is critical for identifying macro-generated methods like ResetOuterBorder().

Question 3

How does this skill handle branch coverage for UI components?

Accepted Answer

The skill mandates writing paired tests for both true and false branches of conditional logic (e.g., testing both PERCENT and non-PERCENT units), ensuring that all execution paths are verified.

Question 4

Why should I avoid magic numbers in ArkUI tests?

Accepted Answer

Magic numbers make tests difficult to maintain and understand. Using named constants in an anonymous namespace provides semantic meaning and ensures that changes to values only need to be made in one location.

Question 5

Why is direct method invocation preferred over indirect triggers?

Accepted Answer

Calling methods like OnModifyDone() directly ensures the specific logic under test is actually executed. Indirect triggers may fail to hit the target code path, leading to inaccurate test results.

ArkUI TDD Testing Patterns

主な機能

ユースケース

ArkUI TDD Testing Patterns

主な機能

ユースケース