rspec/rspec-expectations

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Showing 35 of 35 total issues

Class BlockSnippetExtractor has 38 methods (exceeds 20 allowed). Consider refactoring.

    class BlockSnippetExtractor # rubocop:disable Metrics/ClassLength
      # rubocop should properly handle `Struct.new {}` as an inner class definition.

      attr_reader :proc, :method_name

Severity: Minor
Found in lib/rspec/expectations/block_snippet_extractor.rb - About 5 hrs to fix

    File yield.rb has 303 lines of code (exceeds 250 allowed). Consider refactoring.

    RSpec::Support.require_rspec_support 'method_signature_verifier'
    
    module RSpec
      module Matchers
        module BuiltIn
    Severity: Minor
    Found in lib/rspec/matchers/built_in/yield.rb - About 3 hrs to fix

      Class RaiseError has 26 methods (exceeds 20 allowed). Consider refactoring.

            class RaiseError
              include Composable
      
              def initialize(expected_error_or_message=nil, expected_message=nil, &block)
                @block = block
      Severity: Minor
      Found in lib/rspec/matchers/built_in/raise_error.rb - About 3 hrs to fix

        File change.rb has 289 lines of code (exceeds 250 allowed). Consider refactoring.

        module RSpec
          module Matchers
            module BuiltIn
              # @api private
              # Provides the implementation for `change`.
        Severity: Minor
        Found in lib/rspec/matchers/built_in/change.rb - About 2 hrs to fix

          File matchers.rb has 256 lines of code (exceeds 250 allowed). Consider refactoring.

          require 'rspec/support'
          RSpec::Support.require_rspec_support 'matcher_definition'
          RSpec::Support.define_optimized_require_for_rspec(:matchers) { |f| require_relative(f) }
          
          %w[
          Severity: Minor
          Found in lib/rspec/matchers.rb - About 2 hrs to fix

            Method matches? has a Cognitive Complexity of 16 (exceeds 5 allowed). Consider refactoring.

                    def matches?(given_proc)
                      @block = given_proc
                      return false unless Proc === given_proc
            
                      begin
            Severity: Minor
            Found in lib/rspec/matchers/built_in/throw_symbol.rb - About 2 hrs to fix

            Cognitive Complexity

            Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

            A method's cognitive complexity is based on a few simple rules:

            • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
            • Code is considered more complex for each "break in the linear flow of the code"
            • Code is considered more complex when "flow breaking structures are nested"

            Further reading

            Method excluded_from_actual has a Cognitive Complexity of 16 (exceeds 5 allowed). Consider refactoring.

                    def excluded_from_actual
                      return [] unless @actual.respond_to?(:include?)
            
                      expecteds.inject([]) do |memo, expected_item|
                        if comparing_hash_to_a_subset?(expected_item)
            Severity: Minor
            Found in lib/rspec/matchers/built_in/include.rb - About 2 hrs to fix

            Cognitive Complexity

            Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

            A method's cognitive complexity is based on a few simple rules:

            • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
            • Code is considered more complex for each "break in the linear flow of the code"
            • Code is considered more complex when "flow breaking structures are nested"

            Further reading

            Method with_arity has a Cognitive Complexity of 14 (exceeds 5 allowed). Consider refactoring.

                    def with_arity
                      str = ''.dup
                      str << " with #{with_arity_string}" if @expected_arity
                      str << " #{str.length == 0 ? 'with' : 'and'} #{with_keywords_string}" if @expected_keywords && @expected_keywords.count > 0
                      str << " #{str.length == 0 ? 'with' : 'and'} unlimited arguments" if @unlimited_arguments
            Severity: Minor
            Found in lib/rspec/matchers/built_in/respond_to.rb - About 1 hr to fix

            Cognitive Complexity

            Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

            A method's cognitive complexity is based on a few simple rules:

            • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
            • Code is considered more complex for each "break in the linear flow of the code"
            • Code is considered more complex when "flow breaking structures are nested"

            Further reading

            Method matches? has 39 lines of code (exceeds 25 allowed). Consider refactoring.

                    def matches?(given_proc)
                      @block = given_proc
                      return false unless Proc === given_proc
            
                      begin
            Severity: Minor
            Found in lib/rspec/matchers/built_in/throw_symbol.rb - About 1 hr to fix

              Method matches? has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.

                      def matches?(given_proc, negative_expectation=false, &block)
                        @given_proc = given_proc
                        @block ||= block
                        @raised_expected_error = false
                        @with_expected_message = false
              Severity: Minor
              Found in lib/rspec/matchers/built_in/raise_error.rb - About 1 hr to fix

              Cognitive Complexity

              Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

              A method's cognitive complexity is based on a few simple rules:

              • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
              • Code is considered more complex for each "break in the linear flow of the code"
              • Code is considered more complex when "flow breaking structures are nested"

              Further reading

              Method surface_descriptions_in has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.

                    def surface_descriptions_in(item)
                      if Matchers.is_a_describable_matcher?(item)
                        DescribableItem.new(item)
                      elsif Hash === item
                        Hash[surface_descriptions_in(item.to_a)]
              Severity: Minor
              Found in lib/rspec/matchers/composable.rb - About 45 mins to fix

              Cognitive Complexity

              Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

              A method's cognitive complexity is based on a few simple rules:

              • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
              • Code is considered more complex for each "break in the linear flow of the code"
              • Code is considered more complex when "flow breaking structures are nested"

              Further reading

              Method after_opener_state has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.

                      def after_opener_state(token)
                        if handle_closer_token(token)
                          finish_or_find_next_block_if_incorrect!
                        elsif pipe_token?(token)
                          finalize_pending_tokens!
              Severity: Minor
              Found in lib/rspec/expectations/block_snippet_extractor.rb - About 45 mins to fix

              Cognitive Complexity

              Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

              A method's cognitive complexity is based on a few simple rules:

              • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
              • Code is considered more complex for each "break in the linear flow of the code"
              • Code is considered more complex when "flow breaking structures are nested"

              Further reading

              Method initialize has 5 arguments (exceeds 4 allowed). Consider refactoring.

                      def initialize(name, declarations, matcher_execution_context, *expected, &block_arg)
              Severity: Minor
              Found in lib/rspec/matchers/dsl.rb - About 35 mins to fix

                Method matches? has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.

                        def matches?(block)
                          @actual_formatted = []
                          @actual = []
                          args_matched_when_yielded = true
                          yield_count = 0
                Severity: Minor
                Found in lib/rspec/matchers/built_in/yield.rb - About 35 mins to fix

                Cognitive Complexity

                Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

                A method's cognitive complexity is based on a few simple rules:

                • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
                • Code is considered more complex for each "break in the linear flow of the code"
                • Code is considered more complex when "flow breaking structures are nested"

                Further reading

                Method match has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.

                        def match(options={}, &match_block)
                          define_user_override(:matches?, match_block) do |actual|
                            @actual = actual
                            RSpec::Support.with_failure_notifier(RAISE_NOTIFIER) do
                              begin
                Severity: Minor
                Found in lib/rspec/matchers/dsl.rb - About 35 mins to fix

                Cognitive Complexity

                Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

                A method's cognitive complexity is based on a few simple rules:

                • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
                • Code is considered more complex for each "break in the linear flow of the code"
                • Code is considered more complex when "flow breaking structures are nested"

                Further reading

                Similar blocks of code found in 2 locations. Consider refactoring.

                      def self.handle_matcher(actual, initial_matcher, message=nil, &block)
                        ExpectationHelper.with_matcher(self, initial_matcher, message) do |matcher|
                          return ::RSpec::Matchers::BuiltIn::NegativeOperatorMatcher.new(actual) unless initial_matcher
                          does_not_match?(matcher, actual, &block) || ExpectationHelper.handle_failure(matcher, message, :failure_message_when_negated)
                        end
                Severity: Minor
                Found in lib/rspec/expectations/handler.rb and 1 other location - About 30 mins to fix
                lib/rspec/expectations/handler.rb on lines 47..51

                Duplicated Code

                Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                Tuning

                This issue has a mass of 33.

                We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                Refactorings

                Further Reading

                Similar blocks of code found in 2 locations. Consider refactoring.

                      def self.handle_matcher(actual, initial_matcher, message=nil, &block)
                        ExpectationHelper.with_matcher(self, initial_matcher, message) do |matcher|
                          return ::RSpec::Matchers::BuiltIn::PositiveOperatorMatcher.new(actual) unless initial_matcher
                          matcher.matches?(actual, &block) || ExpectationHelper.handle_failure(matcher, message, :failure_message)
                        end
                Severity: Minor
                Found in lib/rspec/expectations/handler.rb and 1 other location - About 30 mins to fix
                lib/rspec/expectations/handler.rb on lines 69..73

                Duplicated Code

                Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                Tuning

                This issue has a mass of 33.

                We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                Refactorings

                Further Reading

                Identical blocks of code found in 2 locations. Consider refactoring.

                        def diff_would_wrongly_highlight_matched_item?
                          return false unless actual.is_a?(String) && expected.is_a?(Array)
                
                          lines = actual.split("\n")
                          expected.any? do |str|
                Severity: Minor
                Found in benchmarks/include_matcher.rb and 1 other location - About 25 mins to fix
                lib/rspec/matchers/built_in/include.rb on lines 134..140

                Duplicated Code

                Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                Tuning

                This issue has a mass of 31.

                We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                Refactorings

                Further Reading

                Identical blocks of code found in 2 locations. Consider refactoring.

                        def diff_would_wrongly_highlight_matched_item?
                          return false unless actual.is_a?(String) && expected.is_a?(Array)
                
                          lines = actual.split("\n")
                          expected.any? do |str|
                Severity: Minor
                Found in lib/rspec/matchers/built_in/include.rb and 1 other location - About 25 mins to fix
                benchmarks/include_matcher.rb on lines 91..97

                Duplicated Code

                Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                Tuning

                This issue has a mass of 31.

                We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                Refactorings

                Further Reading

                Method perform_match has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

                        def perform_match(predicate, hash_subset_predicate)
                          return false unless actual.respond_to?(:include?)
                
                          expected.__send__(predicate) do |expected_item|
                            if comparing_hash_to_a_subset?(expected_item)
                Severity: Minor
                Found in benchmarks/include_matcher.rb - About 25 mins to fix

                Cognitive Complexity

                Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

                A method's cognitive complexity is based on a few simple rules:

                • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
                • Code is considered more complex for each "break in the linear flow of the code"
                • Code is considered more complex when "flow breaking structures are nested"

                Further reading

                Method for has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

                      def self.for(value, block)
                        if UndefinedValue.equal?(value)
                          unless block
                            raise ArgumentError, "You must pass either an argument or a block to `expect`."
                          end
                Severity: Minor
                Found in lib/rspec/expectations/expectation_target.rb - About 25 mins to fix

                Cognitive Complexity

                Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

                A method's cognitive complexity is based on a few simple rules:

                • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
                • Code is considered more complex for each "break in the linear flow of the code"
                • Code is considered more complex when "flow breaking structures are nested"

                Further reading

                Method match_captures has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

                        def match_captures(expected, actual)
                          match = actual.match(expected)
                          if match
                            match = ReliableMatchData.new(match)
                            if match.names.empty?
                Severity: Minor
                Found in lib/rspec/matchers/built_in/match.rb - About 25 mins to fix

                Cognitive Complexity

                Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

                A method's cognitive complexity is based on a few simple rules:

                • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
                • Code is considered more complex for each "break in the linear flow of the code"
                • Code is considered more complex when "flow breaking structures are nested"

                Further reading

                Method append_features has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

                        def append_features(mod)
                          return super if mod < self # `mod < self` indicates a re-inclusion.
                
                          subclasses = ObjectSpace.each_object(Class).select { |c| c < mod && c < self }
                          return super unless subclasses.any?
                Severity: Minor
                Found in lib/rspec/matchers.rb - About 25 mins to fix

                Cognitive Complexity

                Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

                A method's cognitive complexity is based on a few simple rules:

                • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
                • Code is considered more complex for each "break in the linear flow of the code"
                • Code is considered more complex when "flow breaking structures are nested"

                Further reading

                Similar blocks of code found in 2 locations. Consider refactoring.

                  x.report("New `to include` failures") do
                    array_sizes.each do |n|
                      begin
                        expect([*1..n]).to include(*n+1..n*1.5)
                      rescue RSpec::Expectations::ExpectationNotMetError
                Severity: Minor
                Found in benchmarks/include_matcher.rb and 1 other location - About 25 mins to fix
                benchmarks/include_matcher.rb on lines 130..135

                Duplicated Code

                Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                Tuning

                This issue has a mass of 30.

                We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                Refactorings

                Further Reading

                Similar blocks of code found in 2 locations. Consider refactoring.

                  x.report("Old `to include` failures") do
                    array_sizes.each do |n|
                      begin
                        expect([*1..n]).to old_include(*n+1..n*1.5)
                      rescue RSpec::Expectations::ExpectationNotMetError
                Severity: Minor
                Found in benchmarks/include_matcher.rb and 1 other location - About 25 mins to fix
                benchmarks/include_matcher.rb on lines 139..144

                Duplicated Code

                Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                Tuning

                This issue has a mass of 30.

                We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                Refactorings

                Further Reading

                Method with_matchers_cloned has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

                      def with_matchers_cloned(object)
                        if Matchers.is_a_matcher?(object)
                          object.clone
                        elsif Hash === object
                          Hash[with_matchers_cloned(object.to_a)]
                Severity: Minor
                Found in lib/rspec/matchers/composable.rb - About 25 mins to fix

                Cognitive Complexity

                Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

                A method's cognitive complexity is based on a few simple rules:

                • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
                • Code is considered more complex for each "break in the linear flow of the code"
                • Code is considered more complex when "flow breaking structures are nested"

                Further reading

                Method warn_for_false_positives has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

                        def warn_for_false_positives
                          expression = if expecting_specific_exception? && @expected_message
                                         "`expect { }.not_to raise_error(SpecificErrorClass, message)`"
                                       elsif expecting_specific_exception?
                                         "`expect { }.not_to raise_error(SpecificErrorClass)`"
                Severity: Minor
                Found in lib/rspec/matchers/built_in/raise_error.rb - About 25 mins to fix

                Cognitive Complexity

                Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

                A method's cognitive complexity is based on a few simple rules:

                • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
                • Code is considered more complex for each "break in the linear flow of the code"
                • Code is considered more complex when "flow breaking structures are nested"

                Further reading

                Method is_a_matcher? has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

                    def self.is_a_matcher?(obj)
                      return true  if ::RSpec::Matchers::BuiltIn::BaseMatcher === obj
                      begin
                        return false if obj.respond_to?(:i_respond_to_everything_so_im_not_really_a_matcher)
                      rescue NoMethodError
                Severity: Minor
                Found in lib/rspec/matchers.rb - About 25 mins to fix

                Cognitive Complexity

                Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

                A method's cognitive complexity is based on a few simple rules:

                • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
                • Code is considered more complex for each "break in the linear flow of the code"
                • Code is considered more complex when "flow breaking structures are nested"

                Further reading

                Method failure_message has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

                        def failure_message
                          return not_given_a_block_failure unless Proc === @event_proc
                          return before_value_failure      unless @matches_before
                          return did_not_change_failure    unless @change_details.changed?
                          after_value_failure
                Severity: Minor
                Found in lib/rspec/matchers/built_in/change.rb - About 25 mins to fix

                Cognitive Complexity

                Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

                A method's cognitive complexity is based on a few simple rules:

                • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
                • Code is considered more complex for each "break in the linear flow of the code"
                • Code is considered more complex when "flow breaking structures are nested"

                Further reading

                Method diffs has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

                      def diffs(differ, actual)
                        @expected_list.map do |(expected, diff_label)|
                          diff = differ.diff(actual, expected)
                          next if diff.strip.empty?
                          if diff == "\e[0m\n\e[0m"
                Severity: Minor
                Found in lib/rspec/matchers/expecteds_for_multiple_diffs.rb - About 25 mins to fix

                Cognitive Complexity

                Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

                A method's cognitive complexity is based on a few simple rules:

                • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
                • Code is considered more complex for each "break in the linear flow of the code"
                • Code is considered more complex when "flow breaking structures are nested"

                Further reading

                Method throw_description has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

                        def throw_description(symbol, arg)
                          symbol_description = symbol.is_a?(String) ? symbol : description_of(symbol)
                
                          arg_description = if arg
                                              " with #{description_of arg}"
                Severity: Minor
                Found in lib/rspec/matchers/built_in/throw_symbol.rb - About 25 mins to fix

                Cognitive Complexity

                Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

                A method's cognitive complexity is based on a few simple rules:

                • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
                • Code is considered more complex for each "break in the linear flow of the code"
                • Code is considered more complex when "flow breaking structures are nested"

                Further reading

                Similar blocks of code found in 2 locations. Consider refactoring.

                  x.report("New `to not include` failures") do
                    array_sizes.each do |n|
                      begin
                        expect([*1..n]).to_not include(*n/2..n)
                      rescue RSpec::Expectations::ExpectationNotMetError
                Severity: Minor
                Found in benchmarks/include_matcher.rb and 1 other location - About 20 mins to fix
                benchmarks/include_matcher.rb on lines 168..173

                Duplicated Code

                Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                Tuning

                This issue has a mass of 28.

                We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                Refactorings

                Further Reading

                Similar blocks of code found in 2 locations. Consider refactoring.

                  x.report("Old `to not include` failures") do
                    array_sizes.each do |n|
                      begin
                        expect([*1..n]).to_not old_include(*n/2..n)
                      rescue RSpec::Expectations::ExpectationNotMetError
                Severity: Minor
                Found in benchmarks/include_matcher.rb and 1 other location - About 20 mins to fix
                benchmarks/include_matcher.rb on lines 177..182

                Duplicated Code

                Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                Tuning

                This issue has a mass of 28.

                We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                Refactorings

                Further Reading

                Identical blocks of code found in 2 locations. Consider refactoring.

                    expecteds.each do |expected|
                      bm.report("#{size.to_s.rjust(5)} items") do
                        begin
                          expect(actual).to match_array(expected)
                        rescue RSpec::Expectations::ExpectationNotMetError
                Severity: Minor
                Found in benchmarks/match_array/failing_with_distinct_items.rb and 1 other location - About 20 mins to fix
                benchmarks/match_array/failing_with_duplicate_items.rb on lines 24..30

                Duplicated Code

                Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                Tuning

                This issue has a mass of 27.

                We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                Refactorings

                Further Reading

                Identical blocks of code found in 2 locations. Consider refactoring.

                    expecteds.each do |expected|
                      bm.report("#{size.to_s.rjust(5)} items") do
                        begin
                          expect(actual).to match_array(expected)
                        rescue RSpec::Expectations::ExpectationNotMetError
                Severity: Minor
                Found in benchmarks/match_array/failing_with_duplicate_items.rb and 1 other location - About 20 mins to fix
                benchmarks/match_array/failing_with_distinct_items.rb on lines 27..33

                Duplicated Code

                Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                Tuning

                This issue has a mass of 27.

                We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                Refactorings

                Further Reading

                Severity
                Category