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require File.dirname(__FILE__) + '/../abstract_unit'
class EmptyTrue
def empty?() true; end
end
class EmptyFalse
def empty?() false; end
end
class EmptyStripNotEmpty
def empty?() true; end
def strip() 'foo'; end
end
class EmptyStripEmpty
def empty?() true; end
def strip() ''; end
end
class NotEmptyStripNotEmpty
def empty?() false; end
def strip() 'foo'; end
end
class NotEmptyStripEmpty
def empty?() false; end
def strip() ''; end
end
class BlankTest < Test::Unit::TestCase
BLANK = [ EmptyTrue.new, EmptyStripNotEmpty.new, EmptyStripEmpty.new,
NotEmptyStripEmpty.new, nil, false, '', ' ', " \n\t \r ",
[], {} ]
NOT = [ EmptyFalse.new, NotEmptyStripNotEmpty.new, Object.new, true,
0, 1, 'a', [nil], { nil => 0 } ]
class EmptyObject
def empty?
true
end
alias :strip :empty?
end
class NoStripObject < EmptyObject; undef :strip; end
class NoEmptyStripObject < NoStripObject; undef :empty?; end
def test_blank
BLANK.each { |v| assert v.blank? }
NOT.each { |v| assert !v.blank? }
assert EmptyObject.new.blank?
assert NoStripObject.new.blank?
assert !NoEmptyStripObject.new.blank?
end
end
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