From 0b231d12dd5bfdb16c1c59ec60de167c45769a6c Mon Sep 17 00:00:00 2001
From: frankknoll <Knoll_Frank@web.de>
Date: Sat, 1 Apr 2023 01:15:00 +0200
Subject: [PATCH] refining CountriesMergerTest

---
 src/CountriesMerger.py     | 9 ++++++---
 src/CountriesMergerTest.py | 3 ++-
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/CountriesMerger.py b/src/CountriesMerger.py
index dd17eed83d0..3f703ced405 100644
--- a/src/CountriesMerger.py
+++ b/src/CountriesMerger.py
@@ -8,6 +8,9 @@ class CountriesMerger:
         def merge(series):
             series = series.dropna()
             return sorted(set().union(*series))
-        return (pd
-                .merge(dst, src, how='left', left_index=True, right_index=True)
-                .apply(merge, axis='columns'))
+        
+        mergedSeries = (pd
+                        .merge(dst, src, how='left', left_index=True, right_index=True)
+                        .apply(merge, axis='columns'))
+        mergedSeries.name = dst.name
+        return mergedSeries
diff --git a/src/CountriesMergerTest.py b/src/CountriesMergerTest.py
index a5a7a2272e2..dd12ff99406 100644
--- a/src/CountriesMergerTest.py
+++ b/src/CountriesMergerTest.py
@@ -21,4 +21,5 @@ class CountriesMergerTest(unittest.TestCase):
                 {
                     'NO72A': ['CountryA-1', 'CountryB-1'],
                     'EW096': ['CountryA-2']
-                }))
+                },
+                name=dstCountries.name))