starting JensenShannonDistanceColumnAdderTest

src/JensenShannonDistanceColumnAdder.py

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+from scipy.spatial import distance
+
+
+class JensenShannonDistanceColumnAdder:
+
+    @staticmethod
+    def addJensenShannonDistanceColumn(barChartDescriptionTable):
+        barChartDescriptionTable['JENSEN_SHANNON_DISTANCE'] = (
+            barChartDescriptionTable.apply(
+                lambda barChartDescription: distance.jensenshannon(
+                    barChartDescription['BAR_CHART_DESCRIPTION']['Adverse Reaction Reports guessed'],
+                    barChartDescription['BAR_CHART_DESCRIPTION']['Adverse Reaction Reports known'],
+                    base=2.0),
+                axis = 'columns'))
+        return barChartDescriptionTable

src/JensenShannonDistanceColumnAdderTest.py

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+import unittest
+import pandas as pd
+from pandas.testing import assert_frame_equal
+from TestHelper import TestHelper
+from JensenShannonDistanceColumnAdder import JensenShannonDistanceColumnAdder
+from scipy.spatial import distance
+
+class JensenShannonDistanceColumnAdderTest(unittest.TestCase):
+
+    def test_addJensenShannonDistanceColumn(self):
+        # Given
+        barChartDescriptionTable = TestHelper.createDataFrame(
+                columns = ['BAR_CHART_DESCRIPTION'],
+                data = [
+                        [
+                            {
+                                'countries':                        ['Germany', 'Hungary'],
+                                'Adverse Reaction Reports guessed': [10,        15],
+                                'Adverse Reaction Reports known':   [20,        30]
+                            }
+                        ]
+                       ],
+                index = pd.Index(
+                    [
+                        '!D0181',
+                    ],
+                    name = 'VAX_LOT'))
+        
+        # When
+        barChartDescriptionTableWithJensenShannonDistanceColumn = JensenShannonDistanceColumnAdder.addJensenShannonDistanceColumn(barChartDescriptionTable)
+
+        # Then
+        assert_frame_equal(
+            barChartDescriptionTableWithJensenShannonDistanceColumn,
+            TestHelper.createDataFrame(
+                columns = ['BAR_CHART_DESCRIPTION',                                          'JENSEN_SHANNON_DISTANCE'],
+                data = [
+                        [
+                            {
+                                'countries':                        ['Germany', 'Hungary'],
+                                'Adverse Reaction Reports guessed': [10,        15],
+                                'Adverse Reaction Reports known':   [20,        30]
+                            },
+                                                                                             distance.jensenshannon([10, 15], [20, 30], base = 2.0)
+                        ]
+                       ],
+                index = pd.Index(
+                    [
+                        '!D0181',
+                    ],
+                    name = 'VAX_LOT')),
+            check_dtype = True)