refactoring

src/MultiIndexValuesProvider.py

@@ -1,14 +1,12 @@
-# FK-TODO: zu langsam
+import pandas as pd
+
+
 class MultiIndexValuesProvider:
 
     @staticmethod
     def getValues(multiIndex):
-        return set(MultiIndexValuesProvider._concat(MultiIndexValuesProvider._tuples2Lists(multiIndex.values)))
-    
-    @staticmethod
-    def _tuples2Lists(tuples):
-        return [list(tuple) for tuple in tuples]
-
-    @staticmethod
-    def _concat(lsts):
-        return sum(lsts, [])
+        df = multiIndex.to_frame(index = False)
+        values = (pd
+                    .concat([df[column] for column in df.columns])
+                    .unique())
+        return set(values)

src/MultiIndexValuesProviderTest.py

@@ -4,7 +4,22 @@ import pandas as pd
 
 class MultiIndexValuesProviderTest(unittest.TestCase):
 
-    def test_getValues(self):
+    def test_getValues_1_level(self):
+        # Given
+        value1 = '1808982'
+        value2 = 'EW0175'
+        multiIndex = pd.MultiIndex.from_tuples(
+            names =   ['VAX_LOT1'],
+            tuples = [[value1],
+                      [value2]])
+                        
+        # When
+        values = MultiIndexValuesProvider.getValues(multiIndex)
+
+        # Then
+        self.assertEqual(values, {value1, value2})
+
+    def test_getValues_2_levels(self):
         # Given
         value1 = '1808982'
         value2 = 'EW0175'