#163 Unit Testing a Method with Predicate and Function

Companies:

Sberbank

Themes:

JavaStreams & LambdasCode Review

How should this class be tested?

class MyService {
    public static Predicate<String> startsWithA = s -> s.startsWith("A");
    public static Function<String, String> toUpperCase = String::toUpperCase;

    public List<String> filterAndTransform(List<String> input) {
        return input.stream()
                    .filter(startsWithA)
                    .map(toUpperCase)
                    .collect(Collectors.toList());
    }
}

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