I suggest including additional test cases, such as an empty array, an array containing negative numbers, and an array with floating-point numbers. Alternatively, you could explicitly mention in the description that these types of inputs are not permitted.

thank you! fixed

fixed

Tests and kata description have been updated! Now we expect to get null if:

• the resource being sought is a natural resource
• there is no corresponding recipe in our collection
• the requested amount is less than or equal to 0"

It should be fixed! Please, test it and let me know.

Thanks for this issue!
I intend to revise the task description and include a note specifying that the resulting values should have a maximum of 2 decimal places to prevent the occurrence of extended floating-point values in random tests.
do you agree?

The solution to this kata serves as a singletone service! Passing a constant collection as a parameter each time is not advisable, as CW users will be working with it throughout the kata. The code written in the 'Initial Solution' shows that when creating an instance of the class, the class will receive a collection of recipes. You can also see this in the "Example Test Cases."

in that case nothing costs anything because natural resources are free

Well said! That's how Humanity lives :)

I chose a class and named it 'Service' strictly for architectural reasons. In this case, the class acts as a singleton. Therefore, during class initialization, we set the collection of recipes with which this class subsequently works.

1 stone cost null because is a "natural resource".

Quote: "natural resources" in the collection have null value Example: 'iron-ore': null

so, it costs nothing.

Thank you for bringing up this issue! In the thread below, I responded to a similar issue. So, I made changes to the description and attached an example.

I provided additional information about the 'yield' property and also added an example

Thank you for pointing this out! Fixed: the problem was that the production time did not take into account the amount of ingredients needed

I'm closing this issue because of an erroneous guess, I just want to bring a little more meaning and history to the tasks on the CW

fixed