From 6c8d354b8d9ca2fa62d0e062fa6346673dd15dbf Mon Sep 17 00:00:00 2001 From: David Heinemeier Hansson Date: Tue, 21 Jun 2005 07:00:28 +0000 Subject: Added Fix/Bignum#multiple_of? which returns true on 14.multiple_of?(7) and false on 16.multiple_of?(7) #1464 [Thomas Fuchs] Added even? and odd? to work with Bignums in addition to Fixnums #1464 [Thomas Fuchs] git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@1462 5ecf4fe2-1ee6-0310-87b1-e25e094e27de --- activesupport/test/core_ext/fixnum_ext_test.rb | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'activesupport/test/core_ext/fixnum_ext_test.rb') diff --git a/activesupport/test/core_ext/fixnum_ext_test.rb b/activesupport/test/core_ext/fixnum_ext_test.rb index 627c282b8b..7ffc32a9e1 100644 --- a/activesupport/test/core_ext/fixnum_ext_test.rb +++ b/activesupport/test/core_ext/fixnum_ext_test.rb @@ -5,10 +5,25 @@ class FixnumExtTest < Test::Unit::TestCase def test_even assert [ -2, 0, 2, 4 ].all? { |i| i.even? } assert ![ -1, 1, 3 ].all? { |i| i.even? } + + assert 22953686867719691230002707821868552601124472329079.odd? + assert !22953686867719691230002707821868552601124472329079.even? + assert 22953686867719691230002707821868552601124472329080.even? + assert !22953686867719691230002707821868552601124472329080.odd? end def test_odd assert ![ -2, 0, 2, 4 ].all? { |i| i.odd? } assert [ -1, 1, 3 ].all? { |i| i.odd? } end + + def test_multiple_of + assert [ -7, 0, 7, 14 ].all? { |i| i.multiple_of? 7 } + assert ![ -7, 0, 7, 14 ].all? { |i| i.multiple_of? 6 } + # test with a prime + assert !22953686867719691230002707821868552601124472329079.multiple_of?(2) + assert !22953686867719691230002707821868552601124472329079.multiple_of?(3) + assert !22953686867719691230002707821868552601124472329079.multiple_of?(5) + assert !22953686867719691230002707821868552601124472329079.multiple_of?(7) + end end -- cgit v1.2.3