How to use compare method of Sort Package

Best Active_mocker_ruby code snippet using Sort.compare

compare_by_identity_spec.rb

Source:compare_by_identity_spec.rb Github

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1require File.expand_path('../../../spec_helper', __FILE__)2require 'set'3ruby_version_is '2.4' do4 describe "Set#compare_by_identity" do5 it "compares its members by identity" do6 a = "a"7 b1 = "b"8 b2 = "b"9 set = Set.new10 set.compare_by_identity11 set.merge([a, a, b1, b2])12 set.to_a.sort.should == [a, b1, b2].sort13 end14 it "causes future comparisons on the receiver to be made by identity" do15 elt = [1]16 set = Set.new17 set << elt18 set.member?(elt.dup).should be_true19 set.compare_by_identity20 set.member?(elt.dup).should be_false21 end22 it "rehashes internally so that old members can be looked up" do23 set = Set.new24 (1..10).each { |k| set << k }25 o = Object.new26 def o.hash; 123; end27 set << o28 set.compare_by_identity29 set.member?(o).should be_true30 end31 it "returns self" do32 set = Set.new33 result = set.compare_by_identity34 result.should equal(set)35 end36 it "is idempotent and has no effect on an already compare_by_identity set" do37 set = Set.new.compare_by_identity38 set << :foo39 set.compare_by_identity.should equal(set)40 set.compare_by_identity?.should == true41 set.to_a.should == [:foo]42 end43 it "uses the semantics of BasicObject#equal? to determine members identity" do44 :a.equal?(:a).should == true45 Set.new.compare_by_identity.merge([:a, :a]).to_a.should == [:a]46 ary1 = [1]47 ary2 = [1]48 ary1.equal?(ary2).should == false49 Set.new.compare_by_identity.merge([ary1, ary2]).to_a.sort.should == [ary1, ary2].sort50 end51 it "uses #equal? semantics, but doesn't actually call #equal? to determine identity" do52 set = Set.new.compare_by_identity53 obj = mock("equal")54 obj.should_not_receive(:equal?)55 set << :foo56 set << obj57 set.to_a.should == [:foo, obj]58 end59 it "does not call #hash on members" do60 elt = mock("element")61 elt.should_not_receive(:hash)62 set = Set.new.compare_by_identity63 set << elt64 set.member?(elt).should be_true65 end66 it "regards #dup'd objects as having different identities" do67 a1 = "a"68 a2 = a1.dup69 set = Set.new.compare_by_identity70 set.merge([a1, a2])71 set.to_a.sort.should == [a1, a2].sort72 end73 it "regards #clone'd objects as having different identities" do74 a1 = "a"75 a2 = a1.clone76 set = Set.new.compare_by_identity77 set.merge([a1, a2])78 set.to_a.sort.should == [a1, a2].sort79 end80 it "raises a RuntimeError on frozen sets" do81 set = Set.new.freeze82 lambda {83 set.compare_by_identity84 }.should raise_error(RuntimeError, /frozen Hash/)85 end86 it "persists over #dups" do87 set = Set.new.compare_by_identity88 set << :a89 set_dup = set.dup90 set_dup.should == set91 set_dup << :a92 set_dup.to_a.should == [:a]93 end94 it "persists over #clones" do95 set = Set.new.compare_by_identity96 set << :a97 set_clone = set.clone98 set_clone.should == set99 set_clone << :a100 set_clone.to_a.should == [:a]101 end102 it "is not equal to set what does not compare by identity" do103 Set.new([1, 2]).should == Set.new([1, 2])104 Set.new([1, 2]).should_not == Set.new([1, 2]).compare_by_identity105 end106 end107end108ruby_version_is '2.4' do109 describe "Set#compare_by_identity?" do110 it "returns false by default" do111 Set.new.compare_by_identity?.should == false112 end113 it "returns true once #compare_by_identity has been invoked on self" do114 set = Set.new115 set.compare_by_identity116 set.compare_by_identity?.should == true117 end118 it "returns true when called multiple times on the same set" do119 set = Set.new120 set.compare_by_identity121 set.compare_by_identity?.should == true122 set.compare_by_identity?.should == true123 set.compare_by_identity?.should == true124 end125 end126end...

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compare_with_block.rb

Source:compare_with_block.rb Github

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...23 # array.min_by(&:foo)24 # array.sort_by { |a| a[:foo] }25 class CompareWithBlock < Cop26 include RangeHelp27 MSG = 'Use `%<compare_method>s_by%<instead>s` instead of ' \28 '`%<compare_method>s { |%<var_a>s, %<var_b>s| %<str_a>s ' \29 '<=> %<str_b>s }`.'30 def_node_matcher :compare?, <<-PATTERN31 (block32 $(send _ {:sort :min :max})33 (args (arg $_a) (arg $_b))34 $send)35 PATTERN36 def_node_matcher :replaceable_body?, <<-PATTERN37 (send38 (send (lvar %1) $_method $...)39 :<=>40 (send (lvar %2) _method $...))41 PATTERN42 def on_block(node)43 compare?(node) do |send, var_a, var_b, body|44 replaceable_body?(body, var_a, var_b) do |method, args_a, args_b|45 return unless slow_compare?(method, args_a, args_b)46 range = compare_range(send, node)47 add_offense(48 node,49 location: range,50 message: message(send, method, var_a, var_b, args_a)51 )52 end53 end54 end55 def autocorrect(node)56 lambda do |corrector|57 send, var_a, var_b, body = compare?(node)58 method, arg, = replaceable_body?(body, var_a, var_b)59 replacement =60 if method == :[]61 "#{send.method_name}_by { |a| a[#{arg.first.source}] }"62 else63 "#{send.method_name}_by(&:#{method})"64 end65 corrector.replace(compare_range(send, node),66 replacement)67 end68 end69 private70 def slow_compare?(method, args_a, args_b)71 return false unless args_a == args_b72 if method == :[]73 return false unless args_a.size == 174 key = args_a.first75 return false unless %i[sym str int].include?(key.type)76 else77 return false unless args_a.empty?78 end79 true80 end81 # rubocop:disable Metrics/MethodLength82 def message(send, method, var_a, var_b, args)83 compare_method = send.method_name84 if method == :[]85 key = args.first86 instead = " { |a| a[#{key.source}] }"87 str_a = "#{var_a}[#{key.source}]"88 str_b = "#{var_b}[#{key.source}]"89 else90 instead = "(&:#{method})"91 str_a = "#{var_a}.#{method}"92 str_b = "#{var_b}.#{method}"93 end94 format(MSG, compare_method: compare_method,95 instead: instead,96 var_a: var_a,97 var_b: var_b,98 str_a: str_a,99 str_b: str_b)100 end101 # rubocop:enable Metrics/MethodLength102 def compare_range(send, node)103 range_between(send.loc.selector.begin_pos, node.loc.end.end_pos)104 end105 end106 end107 end108end...

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compare

Using AI Code Generation

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1 def self.compare(a)2 for i in 0..(a.size - 1)3 for j in (i + 1)..(a.size - 1)4 def self.compare(a)5 for i in 0..(a.size - 1)6 for j in (i + 1)..(a.size - 1)

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