<@U2B9YHL1K> Here is an example of ad-hoc polymorp...

# chicago

[wakingrufus]

@ud Here is an example of ad-hoc polymorphism and how it can be used to test code without using mocks:
code: https://github.com/wakingrufus/writing-testable-functional-kotlin/blob/master/src/main/kotlin/com/grubhub/kotlin/FizzBuzzRunnerFunctional.kt
tests: https://github.com/wakingrufus/writing-testable-functional-kotlin/blob/master/src/test/kotlin/com/grubhub/kotlin/FizzBuzzRunnerFunctionalKtTest.kt