What difficulties have you encountered when using snapshot testing in projects?

When using snapshot testing in iOS projects, the following difficulties often arise:

• Frequent false positives: even minor UI changes (such as font, padding, or color changes) can cause tests to fail, requiring snapshot updates.
• Snapshot maintenance: as the project grows, the number of snapshot files increases, making their management labor-intensive.
• Environment dependency: test results may vary across different devices or iOS versions due to rendering differences.
• Challenges with dynamic content: if the UI contains dynamic data (like dates, random values), snapshots can quickly become outdated.

To minimize these issues, it is useful to:

• Use data stabilizers (fixing dates, locales).
• Limit snapshot tests to critical components.
• Automate snapshot updates with caution.