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require 'abstract_unit'
class IntegerExtTest < 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? }
assert 1000000000000000000000000000000000000000000000000000000001.odd?
end
def test_multiple_of
[ -7, 0, 7, 14 ].each { |i| assert i.multiple_of?(7) }
[ -7, 7, 14 ].each { |i| assert ! 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
def test_ordinalize
# These tests are mostly just to ensure that the ordinalize method exists.
# Its results are tested comprehensively in the inflector test cases.
assert_equal '1st', 1.ordinalize
assert_equal '8th', 8.ordinalize
1000000000000000000000000000000000000000000000000000000000000000000000.ordinalize
end
end
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