That feeling when you've written 1,100 lines of code and tests
approaching 100% coverage... and then discover there's a gem for that :)
Thanks for telling me about this. I found currencylayer too for spot
price conversions of currencies.
Cheers,
Tom
On 2/01/2016 2:13 PM, Gareth Townsend wrote:
Hi Tom,
Are you using the Money gem? If not, I suggest you check it out.
Gareth Townsend
http://www.garethtownsend.info
On 2 Jan 2016, at 19:27, Ravi (Tom) Hale <[email protected]> wrote:
Hi all,
Me again :) Simon Hildebrandt recommended me to join here as I've been largely
learning / using Ruby in a vacuum (I'm teaching myself while backpacking planet
Earth). It's great to have people to ask these questions - and well thought-out
and clearly written replies coming back.
I'm working on a program that deals with currency trading. The Currency class
keeps track of all instances so that only one instance of (for example) :AUD is
created. It does this via `private_class_method :new` and a class instance Hash of
(currency_code => instance) to store already created objects.
I'm trying to work out how to test this class without the tests being
order-dependent.
I've currently got a spec with:
context 'before the first instance is created'
This was working just fine until I added some more tests in front of it, where
currency objects were created.
I see a few options:
1) Create a Currency.reset! class method to reset the class to the state at
BEGIN
2) Somehow reset the Currency class to load time in a more elegant way
3) Get rid of the class variables entirely (and still ensure that only object
per currency code exists)
I'm fudging with 1) for now to keep in the Green. 3 seems to be cleanest in
terms of textbook OO design, but I can't see how to textbookify this...
Any suggestions on how to implement 2, 3 (or 4..)?
Cheers,
Tom
P.S. Let me know if there is a more appropriate forum to ask questions such as
this
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