fiatcode c3355063f2 Initial commit: Complete TDD workshop materials

- Workshop documentation (WORKSHOP_PLAN, FACILITATOR_GUIDE, etc.)
- FizzBuzz kata with demo script (git history to be recreated)
- Password Validator kata with demo script and solution
- Shopping Cart kata with demo script and solution
- Setup guide and TDD reference card for participants

2026-03-10 15:32:21 +07:00

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Feature A — Password Validator

Your goal

Implement PasswordValidator using strict TDD. Do not write any production code before you have a failing test.

Rules to implement (in order)

Step	Rule	Error message
1	At least 8 characters long	`Must be at least 8 characters long`
2	At least one uppercase letter (A–Z)	`Must contain at least one uppercase letter`
3	At least one digit (0–9)	`Must contain at least one digit`
4	At least one special character (`!@#$%^&*`)	`Must contain at least one special character (!@#$%^&*)`
5	No spaces	`Must not contain spaces`
6	All errors reported at once (refactor)	—

The rhythm — repeat for every rule

1. Uncomment the next test → run → watch it FAIL (Red)
2. Write the minimum code to make it pass → run → GREEN
3. Refactor if needed → run → still GREEN
4. Move to the next test

Running the tests

dart pub get
dart test

Files

lib/password_validator.dart — your implementation goes here
test/password_validator_test.dart — uncomment tests one at a time

Hint for Step 6 (the refactor insight)

Once all 5 rules pass, you'll likely have 5 separate if blocks in validate(). Think about how to represent each rule as data instead of code. What if each rule were just a function in a list?

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