KwickClips Course Topics · 44 sec · free
Which values are boundary data here?
Short answer. 11 and 12.
What should you do after a fix?
Retest everything.
Test three kinds
| Type | age example |
|---|---|
| Normal | 30 |
| Boundary | 11 and 12 |
| Erroneous | -5 |
Remember
| Design, then code |
| Test the boundaries |
| Fix, then retest all |
No error? That does not prove it works. The age limit is twelve. Normal is thirty. Boundary is eleven and twelve. Erroneous is minus five. Three habits. Design before coding. Test the boundaries. After a fix, retest all.
This clip is from the full lesson: Designing and testing programs onscreen — 6 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: Edexcel GCSE GCSE Computer Science (1CP2)
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