Add dedicated pending test to document undesired behavior

Author: mokagio

spec/gp_update_metadata_source_spec.rb

@@ -30,8 +30,6 @@
       File.write(file_1_path, 'value 1')
       file_2_path = File.join(dir, '2.txt')
       File.write(file_2_path, 'value 2')
-      file_3_path = File.join(dir, '3.txt')
-      File.write(file_3_path, 'value 3')
 
       described_class.run(
         po_file_path: output_path,
@@ -40,8 +38,7 @@
           release_note: release_notes_path,
           whats_new: whats_new_path,
           key1: file_1_path,
-          key2: file_2_path,
-          key3: file_3_path # This is not in the input .po and won't be added
+          key2: file_2_path
         }
       )
 
@@ -52,8 +49,6 @@
       # - The new line after each block is added by the conversion
       # - That there's no new line between release_note_0122 and key1, because
       #   the notes are copied as they are with no extra manipulation
-      # - The key3 source is not part of the output because was not in the
-      #   original .po input
       expected = <<~PO
         msgctxt "v1.23-whats-new"
         msgid ""
@@ -83,4 +78,43 @@
       expect(File.read(output_path)).to eq(expected)
     end
   end
+
+  it 'adds entries passed as input even if not part of the original `.po` file' do
+    pending 'this currently fails and will be addressed as part of the upcoming refactor/rewrite of the functionality'
+    Dir.mktmpdir do |dir|
+      output_path = File.join(dir, 'output.po')
+      dummy_text = <<~PO
+        msgctxt "key1"
+        msgid "this value should change"
+        msgstr ""
+      PO
+      File.write(output_path, dummy_text)
+
+      # 2: Create source files with value to insert in the .po
+      file_1_path = File.join(dir, '1.txt')
+      File.write(file_1_path, 'value 1')
+      file_2_path = File.join(dir, '2.txt')
+      File.write(file_2_path, 'value 2')
+
+      described_class.run(
+        po_file_path: output_path,
+        source_files: {
+          key1: file_1_path,
+          key2: file_2_path
+        }
+      )
+
+      expected = <<~PO
+        msgctxt "key1"
+        msgid "value 1"
+        msgstr ""
+
+        msgctxt "key2"
+        msgid "value 2"
+        msgstr ""
+
+      PO
+      expect(File.read(output_path)).to eq(expected)
+    end
+  end
 end