Fix field_type_in_block cop

Author: rmosolgo

.rubocop.yml

@@ -8,7 +8,7 @@ require:
 AllCops:
   DisabledByDefault: true
   SuggestExtensions: false
-  TargetRubyVersion: 2.4
+  TargetRubyVersion: 2.7
   Exclude:
     - 'lib/graphql/language/lexer.rb'
     - 'lib/graphql/language/parser.rb'

graphql.gemspec

@@ -38,7 +38,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency "minitest-reporters"
   s.add_development_dependency "rake"
   s.add_development_dependency 'rake-compiler'
-  s.add_development_dependency "rubocop", "1.12" # for Ruby 2.4 enforcement
+  s.add_development_dependency "rubocop"
   # website stuff
   s.add_development_dependency "jekyll"
   s.add_development_dependency "yard"

lib/graphql/rubocop/graphql/field_type_in_block.rb

@@ -110,7 +110,15 @@ def delete_type_argument(send_node, type_const)
         end
 
         def determine_field_indent(send_node)
-          surrounding_node = send_node.parent.parent
+          surrounding_node = send_node.parent
+          if !surrounding_node.is_a?(RuboCop::AST::ClassNode)
+            surrounding_node = surrounding_node.parent
+          end
+
+          if !surrounding_node.is_a?(RuboCop::AST::ClassNode)
+            raise "Invariant: Something went wrong in GraphQL-Ruby, couldn't find surrounding class definition for field (#{send_node}).\n\nPlease report this error on GitHub."
+          end
+
           surrounding_source = surrounding_node.source
           indent_test_idx = send_node.location.expression.begin_pos - surrounding_node.source_range.begin_pos - 1
           field_indent = "".dup

spec/fixtures/cop/.rubocop.yml

@@ -15,6 +15,7 @@ GraphQL/FieldTypeInBlock:
   Enabled: true
   Include:
     - field_type.rb
+    - small_field_type.rb
     - field_type_autocorrect.rb
 
 GraphQL/RootTypesInBlock:

spec/fixtures/cop/small_field_type.rb

@@ -0,0 +1,3 @@
+class Types::Admin::FooType < Types::FooType
+  field :bar, Types::BarType
+end

spec/graphql/cop/field_type_in_block_spec.rb

@@ -25,4 +25,9 @@
 
     assert_rubocop_autocorrects_all("spec/fixtures/cop/field_type.rb")
   end
+
+  it "works on small classes" do
+    result = run_rubocop_on("spec/fixtures/cop/small_field_type.rb")
+    assert_equal 1, rubocop_errors(result)
+  end
 end

spec/graphql/schema/printer_spec.rb

@@ -124,7 +124,7 @@ class Subscription < GraphQL::Schema::Object
   describe ".print_introspection_schema" do
     it "returns the schema as a string for the introspection types" do
       # From https://github.com/graphql/graphql-js/blob/6a0e00fe46951767287f2cc62e1a10b167b2eaa6/src/utilities/__tests__/schemaPrinter-test.js#L599
-      expected = <<SCHEMA
+      expected = <<-GRAPHQL
 schema {
   query: Root
 }
@@ -630,7 +630,7 @@ class Subscription < GraphQL::Schema::Object
   someEnum: Choice = FOO
   sub: [Sub]
 }
-SCHEMA
+GRAPHQL
 
       assert_equal expected, GraphQL::Schema::Printer.print_schema(schema)
     end

spec/graphql/subscriptions_spec.rb

@@ -1037,7 +1037,7 @@ class MyEnumType < GraphQL::Schema::Enum
       end
 
       class MySubscription < GraphQL::Schema::Subscription
-        argument :my_enum, MyEnumType, required: true
+        argument :my_enum, MyEnumType
         field :my_enum, MyEnumType
       end
 

spec/support/rubocop_test_helpers.rb

@@ -6,7 +6,7 @@ def run_rubocop_on(fixture_path, autocorrect: false)
   end
 
   def rubocop_errors(rubocop_result)
-    rubocop_result =~ /(\d) offenses detected/
+    rubocop_result =~ /(\d) offenses? detected/
     $1.to_i
   end