Test Driven Development - Unit Testing

1. Test Driven Development
Unit Testing

2. It was satisfying to write code without TESTS
Run it in
browser
or
va_dump() it
Write
code Something went
wrong ?
Yes No
Next
>>

3. FLASH IN THE PAN
● Couldn’t Agile.
● Fixing one bug will result alot more.
● Unoptimizabel.
● Couple line of code can break the whole application ( Break Code ).
● Can’t updatable.
● Increase Costs and Times.

4. SOLUTION TDD Test Driven Development
Unit Testing
1. You are not allowed to write any production code without
first writing a test that fails because the production code
does not exist.
1. You are not allowed to write more of a test than is sufficient
to fail; including failure of compilation.
1. You are not allowed to write more production code than is
sufficient to pass the currently failing test.
● Prevents long hours of
debugging and rework
● Ensure our performance
● 100% Coverage feels so
good
● Better maintainability

5. “You are not allowed to write any
production code without first writing a
test ”
- From Uncle Bob