28 lines
1.0 KiB
Ruby
28 lines
1.0 KiB
Ruby
require 'abstract_unit'
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require 'active_support/core_ext/integer'
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class IntegerExtTest < Test::Unit::TestCase
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def test_multiple_of
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[ -7, 0, 7, 14 ].each { |i| assert i.multiple_of?(7) }
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[ -7, 7, 14 ].each { |i| assert ! i.multiple_of?(6) }
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# test the 0 edge case
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assert 0.multiple_of?(0)
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assert !5.multiple_of?(0)
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# test with a prime
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assert !22953686867719691230002707821868552601124472329079.multiple_of?(2)
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assert !22953686867719691230002707821868552601124472329079.multiple_of?(3)
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assert !22953686867719691230002707821868552601124472329079.multiple_of?(5)
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assert !22953686867719691230002707821868552601124472329079.multiple_of?(7)
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end
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def test_ordinalize
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# These tests are mostly just to ensure that the ordinalize method exists.
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# Its results are tested comprehensively in the inflector test cases.
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assert_equal '1st', 1.ordinalize
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assert_equal '8th', 8.ordinalize
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1000000000000000000000000000000000000000000000000000000000000000000000.ordinalize
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end
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end
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