Add all avatar upload specs under one shared examples

spec/requests/api/groups_spec.rb

@@ -22,7 +22,7 @@ describe API::Groups do
   end
 
   shared_examples 'group avatar upload' do
-    context 'when valid file is used' do
+    context 'when valid' do
       let(:file_path) { 'spec/fixtures/banana_sample.gif' }
 
       it 'returns avatar url in response' do
@@ -34,10 +34,9 @@ describe API::Groups do
                                                   "#{group_id}/banana_sample.gif")
       end
     end
-  end
 
-  shared_examples 'invalid file upload request' do
     context 'when invalid' do
+      shared_examples 'invalid file upload request' do
         it 'returns 400' do
           make_upload_request
 
@@ -46,6 +45,21 @@ describe API::Groups do
           expect(json_response['message'].to_s).to match(/#{message}/)
         end
       end
+
+      context 'when file format is not supported' do
+        let(:file_path) { 'spec/fixtures/doc_sample.txt' }
+        let(:message)   { 'file format is not supported. Please try one of the following supported formats: png, jpg, jpeg, gif, bmp, tiff, ico' }
+
+        it_behaves_like 'invalid file upload request'
+      end
+
+      context 'when file format is not supported' do
+        let(:file_path) { 'spec/fixtures/big-image.png' }
+        let(:message)   { 'is too big' }
+
+        it_behaves_like 'invalid file upload request'
+      end
+    end
   end
 
   describe "GET /groups" do
@@ -575,22 +589,6 @@ describe API::Groups do
 
     it_behaves_like 'group avatar upload'
 
-    context 'group avatar update' do
-      context 'when file format is not supported' do
-        let(:file_path) { 'spec/fixtures/doc_sample.txt' }
-        let(:message)   { 'file format is not supported. Please try one of the following supported formats: png, jpg, jpeg, gif, bmp, tiff, ico' }
-
-        it_behaves_like 'invalid file upload request'
-      end
-
-      context 'when file size is large' do
-        let(:file_path) { 'spec/fixtures/big-image.png' }
-        let(:message)   { "is too big" }
-
-        it_behaves_like 'invalid file upload request'
-      end
-    end
-
     context 'when authenticated as the group owner' do
       it 'updates the group' do
         put api("/groups/#{group1.id}", user1), params: {
@@ -1000,22 +998,6 @@ describe API::Groups do
 
     it_behaves_like 'group avatar upload'
 
-    context 'group avatar upload' do
-      context 'when file format is not supported' do
-        let(:file_path) { 'spec/fixtures/doc_sample.txt' }
-        let(:message)   { 'file format is not supported. Please try one of the following supported formats: png, jpg, jpeg, gif, bmp, tiff, ico' }
-
-        it_behaves_like 'invalid file upload request'
-      end
-
-      context 'when file size is large' do
-        let(:file_path) { 'spec/fixtures/big-image.png' }
-        let(:message)   { "is too big" }
-
-        it_behaves_like 'invalid file upload request'
-      end
-    end
-
     context "when authenticated as user without group permissions" do
       it "does not create group" do
         group = attributes_for_group_api