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ksss
33 lines
837 B
Ruby
33 lines
837 B
Ruby
##
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# Range(Ext) Test
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assert('Range#cover?') do
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assert_true ("a".."z").cover?("c")
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assert_true !("a".."z").cover?("5")
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assert_true ("a".."z").cover?("cc")
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end
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assert('Range#first') do
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assert_equal 10, (10..20).first
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assert_equal [10, 11, 12], (10..20).first(3)
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assert_equal [0, 1, 2], (0..Float::INFINITY).first(3)
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end
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assert('Range#last') do
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assert_equal 20, (10..20).last
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assert_equal 20, (10...20).last
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assert_equal [18, 19, 20], (10..20).last(3)
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assert_equal [17, 18, 19], (10...20).last(3)
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end
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assert('Range#size') do
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assert_equal 42, (1..42).size
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assert_equal 41, (1...42).size
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assert_equal 6, (1...6.3).size
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assert_equal 5, (1...6.0).size
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assert_equal 5, (1.1...6).size
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assert_equal 15, (1.0..15.9).size
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assert_equal Float::INFINITY, (0..Float::INFINITY).size
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assert_nil ('a'..'z').size
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end
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