abstract struct Spectator::Matchers::Matcher

Overview

Common base class for all expectation conditions. A matcher looks at something produced by the SUT and evaluates whether it is correct or not.

Direct Known Subclasses

Defined in:

spectator/matchers/matcher.cr

Constructors

Instance Method Summary

Instance methods inherited from class Object

should(matcher, message = nil) should, should_eventually(matcher, message = nil) should_eventually, should_never(matcher, message = nil) should_never, should_not(matcher, message = nil) should_not

Constructor Detail

def self.new #

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Instance Method Detail

abstract def description : String #

Short text about the matcher's purpose. This explains what condition satisfies the matcher. The description is used when the one-liner syntax is used.

it { is_expected.to do_something }

The phrasing should be such that it reads "it ___." where the blank is what is returned by this method.


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abstract def match(actual : Expression(T)) : MatchData forall T #

Actually performs the test against the expression (value or block).


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abstract def negated_match(actual : Expression(T)) : MatchData forall T #

Performs the test against the expression (value or block), but inverted. A successful match with #match should normally fail for this method, and vice-versa.


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