1 files changed, 75 insertions, 0 deletions
diff --git a/spec/rubocop/cop/graphql/descriptions_spec.rb b/spec/rubocop/cop/graphql/descriptions_spec.rb
new file mode 100644
index 00000000000..8cfdc05172d
--- /dev/null
+++ b/spec/rubocop/cop/graphql/descriptions_spec.rb
@@ -0,0 +1,75 @@
+# frozen_string_literal: true
+
+require 'fast_spec_helper'
+require 'rubocop'
+require 'rubocop/rspec/support'
+require_relative '../../../../rubocop/cop/graphql/descriptions'
+
+describe RuboCop::Cop::Graphql::Descriptions do
+  include RuboCop::RSpec::ExpectOffense
+  include CopHelper
+
+  subject(:cop) { described_class.new }
+
+  context 'fields' do
+    it 'adds an offense when there is no field description' do
+      inspect_source(<<~TYPE)
+        module Types
+          class FakeType < BaseObject
+            field :a_thing,
+              GraphQL::STRING_TYPE,
+              null: false
+          end
+        end
+      TYPE
+
+      expect(cop.offenses.size).to eq 1
+    end
+
+    it 'does not add an offense for fields with a description' do
+      expect_no_offenses(<<~TYPE.strip)
+        module Types
+          class FakeType < BaseObject
+            graphql_name 'FakeTypeName'
+
+            argument :a_thing,
+              GraphQL::STRING_TYPE,
+              null: false,
+              description: 'A descriptive description'
+          end
+        end
+      TYPE
+    end
+  end
+
+  context 'arguments' do
+    it 'adds an offense when there is no argument description' do
+      inspect_source(<<~TYPE)
+        module Types
+          class FakeType < BaseObject
+            argument :a_thing,
+              GraphQL::STRING_TYPE,
+              null: false
+          end
+        end
+      TYPE
+
+      expect(cop.offenses.size).to eq 1
+    end
+
+    it 'does not add an offense for arguments with a description' do
+      expect_no_offenses(<<~TYPE.strip)
+        module Types
+          class FakeType < BaseObject
+            graphql_name 'FakeTypeName'
+
+            argument :a_thing,
+              GraphQL::STRING_TYPE,
+              null: false,
+              description: 'Behold! A description'
+          end
+        end
+      TYPE
+    end
+  end
+end