`class Or`

Represents a logical OR combination of multiple predicates.

Definitions

`def initialize(predicates)`

Initialize a new OR predicate.

Signature

parameter　predicates　Array: The predicates to combine with OR logic.

Implementation

def initialize(predicates)
	@predicates = predicates
end

`def print(output)`

Print a representation of this predicate.

Signature

parameter　output　Output: The output target.

Implementation

def print(output)
	@predicates.each_with_index do |predicate, index|
		if index > 0
			output.write(" or ", :reset)
		end
		
		predicate.print(output)
	end
end

`def call(assertions, subject)`

Evaluate this predicate against a subject.

Signature

parameter　assertions　Assertions: The assertions instance to use.
parameter　subject　Object: The subject to evaluate.

Implementation

def call(assertions, subject)
	assertions.nested(self) do |assertions|
		@predicates.each do |predicate|
			predicate.call(assertions, subject)
		end
		
		if assertions.passed.any?
			# At least one passed, so we don't care about failures:
			assertions.failed.clear
		else
			# Nothing passed, so we failed:
			assertions.assert(false, "could not find any matching predicate")
		end
	end
end

`def &(other)`

Combine this predicate with another using AND logic.

Signature

parameter　other　Object: Another predicate to combine.
returns　And: A new AND predicate.

Implementation

def &(other)
	And.new([self, other])
end

`def |(other)`

Combine this predicate with another using OR logic.

Signature

parameter　other　Object: Another predicate to combine.
returns　Or: A new OR predicate.

Implementation

def |(other)
	Or.new(@predicates + [other])
end