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require File.expand_path('../../test_helper', __FILE__)
require 'mocha/return_values'
class ReturnValuesTest < Test::Unit::TestCase
include Mocha
def test_should_return_nil
values = ReturnValues.new
assert_nil values.next
end
def test_should_keep_returning_nil
values = ReturnValues.new
values.next
assert_nil values.next
assert_nil values.next
end
def test_should_return_evaluated_single_return_value
values = ReturnValues.new(SingleReturnValue.new('value'))
assert_equal 'value', values.next
end
def test_should_keep_returning_evaluated_single_return_value
values = ReturnValues.new(SingleReturnValue.new('value'))
values.next
assert_equal 'value', values.next
assert_equal 'value', values.next
end
def test_should_return_consecutive_evaluated_single_return_values
values = ReturnValues.new(SingleReturnValue.new('value_1'), SingleReturnValue.new('value_2'))
assert_equal 'value_1', values.next
assert_equal 'value_2', values.next
end
def test_should_keep_returning_last_of_consecutive_evaluated_single_return_values
values = ReturnValues.new(SingleReturnValue.new('value_1'), SingleReturnValue.new('value_2'))
values.next
values.next
assert_equal 'value_2', values.next
assert_equal 'value_2', values.next
end
def test_should_build_single_return_values_for_each_values
values = ReturnValues.build('value_1', 'value_2', 'value_3').values
assert_equal 'value_1', values[0].evaluate
assert_equal 'value_2', values[1].evaluate
assert_equal 'value_3', values[2].evaluate
end
def test_should_combine_two_sets_of_return_values
values_1 = ReturnValues.build('value_1')
values_2 = ReturnValues.build('value_2a', 'value_2b')
values = (values_1 + values_2).values
assert_equal 'value_1', values[0].evaluate
assert_equal 'value_2a', values[1].evaluate
assert_equal 'value_2b', values[2].evaluate
end
end
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