struct Spectator::Matchers::HavePredicateMatcher(ExpectedType)

Overview

Matcher that tests one or more "has" predicates (methods ending in '?' and starting with 'has_'). The ExpectedType type param should be a NamedTuple. Each key in the tuple is a predicate (without the '?' and 'has_' prefix) to test. Each value is a a Tuple of arguments to pass to the predicate method.

Defined in:

spectator/matchers/have_predicate_matcher.cr

Constructors

Instance Method Summary

Constructor methods inherited from struct Spectator::Matchers::ValueMatcher(ExpectedType)

new(expected : Spectator::Value(ExpectedType)) new

Instance methods inherited from struct Spectator::Matchers::StandardMatcher

match(actual : Expression(T)) : MatchData forall T match, negated_match(actual : Expression(T)) : MatchData forall T negated_match

Instance methods inherited from struct Spectator::Matchers::Matcher

===(actual : Expression(T)) : Bool
===(other) : Bool ===, description : String description, initialize initialize, match(actual : Expression(T)) : MatchData forall T match, negated_match(actual : Expression(T)) : MatchData forall T negated_match

Constructor methods inherited from struct Spectator::Matchers::Matcher

new new

Instance methods inherited from class Object

should(matcher : Spectator::Matchers::TypeMatcher(U), message = nil, *, _file = __FILE__, _line = __LINE__) forall U
should(matcher, message = nil, *, _file = __FILE__, _line = __LINE__) should, should_eventually(matcher, message = nil, *, _file = __FILE__, _line = __LINE__) should_eventually, should_never(matcher, message = nil, *, _file = __FILE__, _line = __LINE__) should_never, should_not(matcher : Spectator::Matchers::TypeMatcher(U), message = nil, *, _file = __FILE__, _line = __LINE__) forall U
should_not(matcher : Spectator::Matchers::NilMatcher, message = nil, *, _file = __FILE__, _line = __LINE__)
should_not(matcher, message = nil, *, _file = __FILE__, _line = __LINE__) should_not

Constructor Detail

def self.new(expected : Spectator::Value(ExpectedType)) #

Creates the value matcher. The expected value is stored for later use.


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Instance Method Detail

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.


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

Actually performs the test against the expression.


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def match?(actual : Expression(T)) : Bool forall T #
Description copied from struct Spectator::Matchers::StandardMatcher

Checks whether the matcher is satisfied with the expression given to it.


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

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


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