Refactor HaveAReturnField and HaveAnInputField away entirely.

lib/rspec/graphql_matchers/have_a_field.rb

@@ -3,10 +3,10 @@
 module RSpec
   module GraphqlMatchers
     class HaveAField < BaseMatcher
-      def initialize(expected_field_name)
+      def initialize(expected_field_name, fields = :fields)
         @expected_field_name = expected_field_name.to_s
         @expected_field_type = @graph_object = nil
-        @fields = :fields
+        @fields = fields.to_sym
       end
 
       def matches?(graph_object)
@@ -73,13 +73,11 @@ def field_collection
       end
 
       def matcher_name
-        klass = self.class.to_s.split('::').last
-
-        # Copied these from: https://github.com/rails/rails/blob/v4.2.7.1/activesupport/lib/active_support/inflector/methods.rb#L95-L96
-        klass.gsub!(/([A-Z\d]+)([A-Z][a-z])/, '\1_\2')
-        klass.gsub!(/([a-z\d])([A-Z])/, '\1_\2')
-
-        klass.downcase!
+        case @fields
+        when :fields        then 'have_a_field'
+        when :input_fields  then 'have_an_input_field'
+        when :return_fields then 'have_a_return_field'
+        end
       end
     end
   end

lib/rspec/graphql_matchers/matchers.rb

@@ -2,8 +2,6 @@
 require 'rspec/graphql_matchers/be_of_type'
 require 'rspec/graphql_matchers/accept_arguments'
 require 'rspec/graphql_matchers/have_a_field'
-require 'rspec/graphql_matchers/have_an_input_field'
-require 'rspec/graphql_matchers/have_a_return_field'
 
 module RSpec
   module Matchers
@@ -24,13 +22,13 @@ def have_a_field(field_name)
 
     # rubocop:disable Style/PredicateName
     def have_an_input_field(field_name)
-      RSpec::GraphqlMatchers::HaveAnInputField.new(field_name)
+      RSpec::GraphqlMatchers::HaveAField.new(field_name, :input_fields)
     end
     alias have_input_field have_an_input_field
 
     # rubocop:disable Style/PredicateName
     def have_a_return_field(field_name)
-      RSpec::GraphqlMatchers::HaveAReturnField.new(field_name)
+      RSpec::GraphqlMatchers::HaveAField.new(field_name, :return_fields)
     end
     alias have_return_field have_a_return_field
   end