1 files changed, 69 insertions, 1 deletions
diff --git a/spec/graphql/types/base_enum_spec.rb b/spec/graphql/types/base_enum_spec.rb
index b7adcf217f6..744aee40044 100644
--- a/spec/graphql/types/base_enum_spec.rb
+++ b/spec/graphql/types/base_enum_spec.rb
@@ -3,7 +3,75 @@
 require 'spec_helper'
 
 RSpec.describe Types::BaseEnum do
-  describe '#enum' do
+  describe '.declarative_enum' do
+    let(:use_name) { true }
+    let(:use_description) { true }
+    let(:enum_type) do
+      Class.new(described_class) do
+        graphql_name 'OriginalName'
+        description 'Original description'
+      end
+    end
+
+    let(:enum_module) do
+      Module.new do
+        extend DeclarativeEnum
+
+        name 'Name'
+        description 'Description'
+
+        define do
+          foo value: 0, description: 'description of foo'
+        end
+      end
+    end
+
+    subject(:set_declarative_enum) { enum_type.declarative_enum(enum_module, use_name: use_name, use_description: use_description) }
+
+    describe '#graphql_name' do
+      context 'when the use_name is `true`' do
+        it 'changes the graphql_name' do
+          expect { set_declarative_enum }.to change { enum_type.graphql_name }.from('OriginalName').to('Name')
+        end
+      end
+
+      context 'when the use_name is `false`' do
+        let(:use_name) { false }
+
+        it 'does not change the graphql_name' do
+          expect { set_declarative_enum }.not_to change { enum_type.graphql_name }.from('OriginalName')
+        end
+      end
+    end
+
+    describe '#description' do
+      context 'when the use_description is `true`' do
+        it 'changes the description' do
+          expect { set_declarative_enum }.to change { enum_type.description }.from('Original description').to('Description')
+        end
+      end
+
+      context 'when the use_description is `false`' do
+        let(:use_description) { false }
+
+        it 'does not change the description' do
+          expect { set_declarative_enum }.not_to change { enum_type.description }.from('Original description')
+        end
+      end
+    end
+
+    describe '#values' do
+      it 'sets the values defined by the declarative enum' do
+        set_declarative_enum
+
+        expect(enum_type.values.keys).to eq(['FOO'])
+        expect(enum_type.values.values.map(&:description)).to eq(['description of foo'])
+        expect(enum_type.values.values.map(&:value)).to eq([0])
+      end
+    end
+  end
+
+  describe '.enum' do
     let(:enum) do
       Class.new(described_class) do
         value 'TEST', value: 3