Testing and Defensive Programming

Covering types of error, types of test data, test plans, trace tables and defensive programming (validation, sanitisation, maintainability and readability). Apologies for the length, I wanted to cover it all in one go!

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To watch the videos in their intended order and only those applicable to you, please use the following playlists:

[Lordknight]

I was worried about CS until I found this, I cannot express how grateful I am to have found this, we need more teachers like this so that we all can do well.Thank you.

[amzy]

7:58 he goes it’s difficult to explain.... LIKE WTAF IVE GOT MY EXAMS TOMORROW

[desiccantmusic]

Got mocks next month! I've covered this just making sure I've covered it well.

[augustustranter]

At 3:59, when discussing runtime errors, you mention that it's because your RAM is full, but won't that memory just go to virtual memory? Love the videos - saving my grade!

[shocochells]

I watched this right before my exam and still forgot what defensive programming was😃

[maxilander]

2:44 example isn't an error as an array starts at 0, so 6 index's are generated

[justin-gkkx]

can someone link me some trace table questions plz

[ShahnawazKhan-resj]

Hey! I have my mocks in january, I was wondering if these are all the videos for paper 1

[FuzzyDPozzy]

When it comes to readability, in real life code not in school, you shouldn't use comments for a variety of reasons :
- If a function needs a comment, then it means it needs a more descriptive name.
-if a function does many things, you need to break your code into smaller pieces.

In some cases comments can also be deceiving, lets say you are writing a comment about the date, and then where is day you added an other variable called Life or a boolean, then your comment becomes wasted.

Your code structure must be easy to read, give your code to someone who has no programming experience whatsoever if he's able to understand then you are good to go.

Goodluck.

[jnzo]

u speak to fast and miss out sylabils sometimes and it has hard to hear