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module Riot
# In the postive case, asserts the result of the test is empty.
#
# asserts("a string") { "" }.empty
# asserts("an array") { [] }.empty
# asserts("a hash") { Hash.new }.empty
#
# In the negative case, asserts the result of the test is not empty.
#
# denies("a string") { "foo" }.empty
# denies("an array") { [1] }.empty
# denies("a hash") { {:foo => "bar" } }.empty
class EmptyMacro < AssertionMacro
register :empty
# (see Riot::AssertionMacro#evaluate)
def evaluate(actual)
actual.empty? ? pass(new_message.is_empty) : fail(expected_message(actual).to_be_empty)
end
# (see Riot::AssertionMacro#devaluate)
def devaluate(actual)
actual.empty? ? fail(expected_message(actual).to_not_be_empty) : pass(new_message.is_empty)
end
end
end
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