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require 'mocha/parameter_matchers/base'
module Mocha
module ParameterMatchers
# Matches any object that is a +klass+.
#
# @param [Class] klass expected class.
# @return [IsA] parameter matcher.
#
# @see Expectation#with
# @see Kernel#is_a?
#
# @example Actual parameter is a +Integer+.
# object = mock()
# object.expects(:method_1).with(is_a(Integer))
# object.method_1(99)
# # no error raised
#
# @example Actual parameter is not a +Integer+.
# object = mock()
# object.expects(:method_1).with(is_a(Integer))
# object.method_1('string')
# # error raised, because method_1 was not called with an Integer
#
def is_a(klass) # rubocop:disable Naming/PredicateName
IsA.new(klass)
end
# Parameter matcher which matches when actual parameter is a specific class.
class IsA < Base
# @private
def initialize(klass)
@klass = klass
end
# @private
def matches?(available_parameters)
parameter = available_parameters.shift
parameter.is_a?(@klass)
end
# @private
def mocha_inspect
"is_a(#{@klass.mocha_inspect})"
end
end
end
end
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