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https://github.com/ruby/ruby.git
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67 lines
1.5 KiB
Ruby
67 lines
1.5 KiB
Ruby
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require 'test/unit'
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class TestComparable < Test::Unit::TestCase
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def setup
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@o = Object.new
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@o.extend(Comparable)
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end
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def test_equal
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def @o.<=>(x); 0; end
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assert_equal(true, @o == nil)
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def @o.<=>(x); 1; end
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assert_equal(false, @o == nil)
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def @o.<=>(x); raise; end
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assert_equal(false, @o == nil)
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end
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def test_gt
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def @o.<=>(x); 1; end
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assert_equal(true, @o > nil)
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def @o.<=>(x); 0; end
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assert_equal(false, @o > nil)
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def @o.<=>(x); -1; end
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assert_equal(false, @o > nil)
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end
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def test_ge
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def @o.<=>(x); 1; end
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assert_equal(true, @o >= nil)
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def @o.<=>(x); 0; end
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assert_equal(true, @o >= nil)
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def @o.<=>(x); -1; end
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assert_equal(false, @o >= nil)
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end
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def test_lt
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def @o.<=>(x); 1; end
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assert_equal(false, @o < nil)
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def @o.<=>(x); 0; end
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assert_equal(false, @o < nil)
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def @o.<=>(x); -1; end
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assert_equal(true, @o < nil)
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end
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def test_le
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def @o.<=>(x); 1; end
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assert_equal(false, @o <= nil)
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def @o.<=>(x); 0; end
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assert_equal(true, @o <= nil)
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def @o.<=>(x); -1; end
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assert_equal(true, @o <= nil)
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end
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def test_between
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def @o.<=>(x); 0 <=> x end
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assert_equal(false, @o.between?(1, 2))
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assert_equal(false, @o.between?(-2, -1))
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assert_equal(true, @o.between?(-1, 1))
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assert_equal(true, @o.between?(0, 0))
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end
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def test_err
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assert_raise(ArgumentError) { 1.0 < nil }
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assert_raise(ArgumentError) { 1.0 < Object.new }
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end
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end
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