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Diffstat (limited to 'activesupport/test/core_ext/blank_test.rb')
-rw-r--r-- | activesupport/test/core_ext/blank_test.rb | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/activesupport/test/core_ext/blank_test.rb b/activesupport/test/core_ext/blank_test.rb index 0fce470fd5..76a0b39978 100644 --- a/activesupport/test/core_ext/blank_test.rb +++ b/activesupport/test/core_ext/blank_test.rb @@ -3,9 +3,21 @@ require File.dirname(__FILE__) + '/../abstract_unit' class BlankTest < Test::Unit::TestCase BLANK = [nil, false, '', ' ', " \n\t \r ", [], {}] NOT = [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 |