verifier

why?

i thought writing a fluent verification library for java would be cool.

how to use?

it's all fluent:

String obj = Verifier.forObject("hehehe")
                .unless(String::isBlank)
                .unless(String::isEmpty)
                .verify();

verifier applies all given predicates and returns the object if verifications passes. throws an unchecked exception otherwise.

alternatively, you can take advantage of java's Optional API.

Optional<String> obj = Verifier.forObject("hehehe")
                .unless(String::isBlank)
                .unless(String::isEmpty)
                .verifyMaybe();