75 lines
1.3 KiB
Ruby
75 lines
1.3 KiB
Ruby
require 'test/unit'
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class TestHash < Test::Unit::TestCase
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def test_hash
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x = {1=>2, 2=>4, 3=>6}
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y = {1, 2, 2, 4, 3, 6}
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assert_equal(2, x[1])
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assert(begin
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for k,v in y
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raise if k*2 != v
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end
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true
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rescue
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false
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end)
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assert_equal(3, x.length)
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assert(x.has_key?(1))
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assert(x.has_value?(4))
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assert_equal([4,6], x.values_at(2,3))
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assert_equal({1=>2, 2=>4, 3=>6}, x)
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z = y.keys.join(":")
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assert_equal("1:2:3", z)
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z = y.values.join(":")
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assert_equal("2:4:6", z)
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assert_equal(x, y)
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y.shift
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assert_equal(2, y.length)
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z = [1,2]
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y[z] = 256
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assert_equal(256, y[z])
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x = Hash.new(0)
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x[1] = 1
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assert_equal(1, x[1])
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assert_equal(0, x[2])
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x = Hash.new([])
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assert_equal([], x[22])
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assert_same(x[22], x[22])
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x = Hash.new{[]}
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assert_equal([], x[22])
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assert_not_same(x[22], x[22])
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x = Hash.new{|h,k| z = k; h[k] = k*2}
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z = 0
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assert_equal(44, x[22])
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assert_equal(22, z)
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z = 0
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assert_equal(44, x[22])
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assert_equal(0, z)
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x.default = 5
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assert_equal(5, x[23])
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x = Hash.new
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def x.default(k)
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$z = k
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self[k] = k*2
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end
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$z = 0
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assert_equal(44, x[22])
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assert_equal(22, $z)
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$z = 0
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assert_equal(44, x[22])
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assert_equal(0, $z)
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end
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end
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