317 lines
7.5 KiB
Ruby
Vendored
317 lines
7.5 KiB
Ruby
Vendored
##
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# Hash(Ext) Test
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assert('Hash.[] Hash') do
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a = Hash['a_key' => 'a_value']
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assert_equal({'a_key' => 'a_value'}, a)
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end
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assert('Hash.[] [ [ ["b_key", "b_value" ] ] ]') do
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a = Hash[ [ ['b_key', 'b_value'] ] ]
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assert_equal({'b_key' => 'b_value'}, a)
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a = Hash[ [ ] ]
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assert_equal({}, a)
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assert_raise(ArgumentError) do
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Hash[ [ ['b_key', 'b_value', 'b_over'] ] ]
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end
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assert_raise(ArgumentError) do
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Hash[ [ [] ] ]
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end
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end
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assert('Hash.[] "c_key", "c_value"') do
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a = Hash['c_key', 'c_value', 'd_key', 1]
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assert_equal({'c_key' => 'c_value', 'd_key' => 1}, a)
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a = Hash[]
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assert_equal({}, a)
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assert_raise(ArgumentError) do
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Hash['d_key']
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end
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end
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assert('Hash.[] for sub class') do
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sub_hash_class = Class.new(Hash)
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sub_hash = sub_hash_class[]
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assert_equal(sub_hash_class, sub_hash.class)
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end
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assert('Hash#merge!') do
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# Single hash merge
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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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assert_equal({'abc_key' => 'abc_value', 'cba_key' => 'XXX',
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'xyz_key' => 'xyz_value' }, result_1)
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# Block handling
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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' => 'cba_value',
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'xyz_key' => 'xyz_value' }, result_2)
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# Multiple arguments
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assert_equal({a:1,b:2,c:3}, {a:1}.merge!({b:2},{c:3}))
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# Error cases
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assert_raise(ArgumentError) { {}.merge!() }
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assert_raise(TypeError) { {}.merge!("not a hash") }
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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#compact') do
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h = { "cat" => "feline", "dog" => nil, "cow" => false }
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assert_equal({ "cat" => "feline", "cow" => false }, h.compact)
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assert_equal({ "cat" => "feline", "dog" => nil, "cow" => false }, h)
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end
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assert('Hash#compact!') do
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h = { "cat" => "feline", "dog" => nil, "cow" => false }
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assert_equal({ "cat" => "feline", "cow" => false }, h.compact!)
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assert_nil(h.compact!)
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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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assert_equal "mouse", h.fetch("mouse"){|k| k}
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assert_raise(KeyError) do
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h.fetch("gnu")
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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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assert("Hash#invert") do
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h = { 1 => 'one', 2 => 'two', 3 => 'three',
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true => 'true', nil => 'nil' }.invert
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assert_equal 1, h['one']
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assert_equal true, h['true']
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assert_equal nil, h['nil']
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h = { 'a' => 1, 'b' => 2, 'c' => 1 }.invert
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assert_equal(2, h.length)
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assert_include(%w[a c], h[1])
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assert_equal('b', h[2])
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end
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assert("Hash#invert with sub class") do
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sub_hash_class = Class.new(Hash)
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sub_hash = sub_hash_class.new
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assert_equal(sub_hash_class, sub_hash.invert.class)
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end
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assert("Hash#keep_if") do
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h = { 1 => 2, 3 => 4, 5 => 6 }
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assert_equal({3=>4,5=>6}, h.keep_if {|k, v| k + v >= 7 })
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h = { 1 => 2, 3 => 4, 5 => 6 }
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assert_equal({ 1 => 2, 3=> 4, 5 =>6} , h.keep_if { true })
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end
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assert("Hash#key") do
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h = { "a" => 100, "b" => 200, "c" => 300, "d" => 300, nil => 'nil', 'nil' => nil }
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assert_equal "b", h.key(200)
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assert_equal "c", h.key(300)
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assert_nil h.key(999)
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assert_nil h.key('nil')
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assert_equal 'nil', h.key(nil)
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end
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assert("Hash#to_h") do
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h = { "a" => 100, "b" => 200 }
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assert_equal Hash, h.to_h.class
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assert_equal h, h.to_h
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end
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assert('Hash#<') do
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h1 = {a:1, b:2}
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h2 = {a:1, b:2, c:3}
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assert_false(h1 < h1)
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assert_true(h1 < h2)
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assert_false(h2 < h1)
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assert_false(h2 < h2)
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h1 = {a:1}
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h2 = {a:2}
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assert_false(h1 < h1)
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assert_false(h1 < h2)
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assert_false(h2 < h1)
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assert_false(h2 < h2)
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end
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assert('Hash#<=') do
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h1 = {a:1, b:2}
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h2 = {a:1, b:2, c:3}
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assert_true(h1 <= h1)
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assert_true(h1 <= h2)
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assert_false(h2 <= h1)
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assert_true(h2 <= h2)
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h1 = {a:1}
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h2 = {a:2}
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assert_true(h1 <= h1)
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assert_false(h1 <= h2)
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assert_false(h2 <= h1)
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assert_true(h2 <= h2)
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end
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assert('Hash#>=') do
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h1 = {a:1, b:2}
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h2 = {a:1, b:2, c:3}
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assert_true(h1 >= h1)
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assert_false(h1 >= h2)
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assert_true(h2 >= h1)
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assert_true(h2 >= h2)
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h1 = {a:1}
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h2 = {a:2}
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assert_true(h1 >= h1)
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assert_false(h1 >= h2)
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assert_false(h2 >= h1)
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assert_true(h2 >= h2)
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end
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assert('Hash#>') do
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h1 = {a:1, b:2}
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h2 = {a:1, b:2, c:3}
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assert_false(h1 > h1)
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assert_false(h1 > h2)
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assert_true(h2 > h1)
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assert_false(h2 > h2)
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h1 = {a:1}
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h2 = {a:2}
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assert_false(h1 > h1)
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assert_false(h1 > h2)
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assert_false(h2 > h1)
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assert_false(h2 > h2)
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end
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assert("Hash#dig") do
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h = {a:{b:{c:1}}}
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assert_equal(1, h.dig(:a, :b, :c))
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assert_nil(h.dig(:d))
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end
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assert("Hash#transform_keys") do
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h = {"1" => 100, "2" => 200}
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assert_equal({"1!" => 100, "2!" => 200},
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h.transform_keys{|k| k+"!"})
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assert_equal({1 => 100, 2 => 200},
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h.transform_keys{|k|k.to_i})
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assert_same(h, h.transform_keys!{|k|k.to_i})
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assert_equal({1 => 100, 2 => 200}, h)
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end
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assert("Hash#transform_values") do
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h = {a: 1, b: 2, c: 3}
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assert_equal({a: 2, b: 5, c: 10},
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h.transform_values{|v| v * v + 1})
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assert_equal({a: "1", b: "2", c: "3"},
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h.transform_values{|v|v.to_s})
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assert_same(h, h.transform_values!{|v|v.to_s})
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assert_equal({a: "1", b: "2", c: "3"}, h)
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end
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assert("Hash#slice") do
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h = { a: 100, b: 200, c: 300 }
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assert_equal({:a=>100}, h.slice(:a))
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assert_equal({:b=>200, :c=>300}, h.slice(:b, :c, :d))
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end
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assert("Hash#slice!") do
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h = { a: 1, b: 2, c: 3, d: 4 }
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removed = h.slice!(:a, :c)
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assert_equal({ a: 1, c: 3 }, h)
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assert_equal({ b: 2, d: 4 }, removed)
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h = { a: 1, b: 2 }
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removed = h.slice!()
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assert_equal({}, h)
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assert_equal({ a: 1, b: 2 }, removed)
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h = { a: 1, b: 2 }
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removed = h.slice!(:a, :b, :c)
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assert_equal({ a: 1, b: 2 }, h)
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assert_equal({}, removed)
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end
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assert("Hash#except") do
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h = { a: 100, b: 200, c: 300 }
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assert_equal({:b=>200, :c=>300}, h.except(:a))
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assert_equal({:a=>100}, h.except(:b, :c, :d))
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assert_equal(h, h.except)
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end
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