mirror of
https://github.com/mruby/mruby
synced 2026-06-08 16:11:16 +00:00
Jun Hiroe
85 lines
2.3 KiB
Ruby
85 lines
2.3 KiB
Ruby
##
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# Hash(Ext) Test
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assert('Hash#merge!') do
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a = { 'abc_key' => 'abc_value', 'cba_key' => 'cba_value' }
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b = { 'cba_key' => 'XXX', 'xyz_key' => 'xyz_value' }
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result_1 = a.merge! b
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a = { 'abc_key' => 'abc_value', 'cba_key' => 'cba_value' }
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result_2 = a.merge!(b) do |key, original, new|
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original
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end
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assert_equal({'abc_key' => 'abc_value', 'cba_key' => 'XXX',
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'xyz_key' => 'xyz_value' }, result_1)
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assert_equal({'abc_key' => 'abc_value', 'cba_key' => 'cba_value',
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'xyz_key' => 'xyz_value' }, result_2)
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end
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assert('Hash#values_at') do
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h = { "cat" => "feline", "dog" => "canine", "cow" => "bovine" }
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assert_equal ["bovine", "feline"], h.values_at("cow", "cat")
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keys = []
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(0...1000).each { |v| keys.push "#{v}" }
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h = Hash.new { |hash,k| hash[k] = k }
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assert_equal keys, h.values_at(*keys)
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end
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assert('Hash#fetch') do
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h = { "cat" => "feline", "dog" => "canine", "cow" => "bovine" }
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assert_equal "feline", h.fetch("cat")
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assert_equal "mickey", h.fetch("mouse", "mickey")
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assert_equal "minny", h.fetch("mouse"){"minny"}
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begin
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h.fetch("gnu")
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rescue => e
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assert_kind_of(StandardError, e);
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end
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end
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assert("Hash#delete_if") do
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base = { 1 => 'one', 2 => false, true => 'true', 'cat' => 99 }
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h1 = { 1 => 'one', 2 => false, true => 'true' }
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h2 = { 2 => false, 'cat' => 99 }
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h3 = { 2 => false }
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h = base.dup
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assert_equal(h, h.delete_if { false })
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assert_equal({}, h.delete_if { true })
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h = base.dup
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assert_equal(h1, h.delete_if {|k,v| k.instance_of?(String) })
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assert_equal(h1, h)
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h = base.dup
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assert_equal(h2, h.delete_if {|k,v| v.instance_of?(String) })
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assert_equal(h2, h)
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h = base.dup
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assert_equal(h3, h.delete_if {|k,v| v })
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assert_equal(h3, h)
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h = base.dup
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n = 0
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h.delete_if {|*a|
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n += 1
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assert_equal(2, a.size)
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assert_equal(base[a[0]], a[1])
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h.shift
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true
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}
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assert_equal(base.size, n)
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end
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assert("Hash#flatten") do
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a = {1=> "one", 2 => [2,"two"], 3 => [3, ["three"]]}
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assert_equal [1, "one", 2, [2, "two"], 3, [3, ["three"]]], a.flatten
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assert_equal [[1, "one"], [2, [2, "two"]], [3, [3, ["three"]]]], a.flatten(0)
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assert_equal [1, "one", 2, [2, "two"], 3, [3, ["three"]]], a.flatten(1)
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assert_equal [1, "one", 2, 2, "two", 3, 3, ["three"]], a.flatten(2)
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assert_equal [1, "one", 2, 2, "two", 3, 3, "three"], a.flatten(3)
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end
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