English Language Test in South Africa

[philemon_bodiba]

Hello there..

I've come to the realisation that The Immigration Rules recognise the following as majority English speaking countries:
Antigua and Barbuda
Guyana
Australia
Jamaica
The Bahamas
New Zealand
Barbados
Belize
St Lucia
Canada
St Kitts and Nevis
St Vincent and the Grenadines
Dominica
Trinidad and Tobago
Grenada
The United States of America

Now that I'm planning to apply for UK spouse visa for my wife who is currently in South Africa, I would like to know where an English Test can be taken in South Africa in order for my wife to qualify for a visa.
And, what's the difference between KoLL and ESOL?

Thanks...