Accept mode as argument in `file_write' action

spec/producer/core/actions/file_writer_spec.rb

@@ -14,6 +14,16 @@ module Producer::Core
           expect(remote_fs).to receive(:file_write).with(path, content)
           writer.apply
         end
+
+        context 'when a mode was given' do
+          subject(:writer) { FileWriter.new(env, path, content, 0600) }
+
+          it 'specifies the given mode' do
+            expect(remote_fs)
+              .to receive(:file_write).with(anything, anything, 0600)
+            writer.apply
+          end
+        end
       end
 
       describe '#path' do
@@ -27,6 +37,20 @@ module Producer::Core
           expect(writer.content).to eq content
         end
       end
+
+      describe '#mode' do
+        it 'returns nil' do
+          expect(writer.mode).to be nil
+        end
+
+        context 'when a mode was given' do
+          subject(:writer) { FileWriter.new(env, path, content, 0600) }
+
+          it 'returns the mode' do
+            expect(writer.mode).to eq 0600
+          end
+        end
+      end
     end
   end
 end

spec/producer/core/remote/fs_spec.rb

@@ -126,7 +126,7 @@ module Producer::Core
         let(:content) { 'some_content' }
 
         it 'opens the file' do
-          expect(sftp_file).to receive(:open).with(path, 'w')
+          expect(sftp_file).to receive(:open).with(path, 'w', anything)
           fs.file_write path, content
         end
 
@@ -137,6 +137,11 @@ module Producer::Core
           end
           fs.file_write path, content
         end
+
+        it 'accepts an optional mode argument' do
+          expect(sftp_file).to receive(:open).with(anything, anything, 0600)
+          fs.file_write path, content, 0600
+        end
       end
     end
   end