📖 Step 7: Testing & Quality#190 / 291

Edge Case

📖One-line summary

An extreme situation like putting emoji in a password.

Test boundary and exceptional inputs

"Dan"Normal input

""Empty string

"a".repeat(10000)Very long string

"<script>"Special chars

"🎉🔥"Emoji

Organize edge cases for the signup form. Test special-character emails, extra-long inputs, whitespace-only input, and emoji input.

Test edge cases for payment amount calculation. Check 0-won products, discounts greater than product price, and decimal handling.

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