chore: add test for parsing Infinite numbers

Author: bednar

tests/test_FluxCSVParser.py

@@ -1,3 +1,4 @@
+import math
 import unittest
 from io import BytesIO
 
@@ -158,6 +159,32 @@ def test_ParseExportFromUserInterface(self):
         self.assertFalse(tables[1].columns[1].group)
         self.assertTrue(tables[1].columns[2].group)
 
+    def test_ParseInf(self):
+
+        data = """#group,false,false,true,true,true,true,true,true,true,true,false,false
+#datatype,string,long,dateTime:RFC3339,dateTime:RFC3339,string,string,string,string,string,string,double,double
+#default,_result,,,,,,,,,,,
+,result,table,_start,_stop,_field,_measurement,language,license,name,owner,le,_value
+,,0,2021-06-23T06:50:11.897825012Z,2021-06-25T06:50:11.897825012Z,stars,github_repository,C#,MIT License,influxdb-client-csharp,influxdata,0,0
+,,0,2021-06-23T06:50:11.897825012Z,2021-06-25T06:50:11.897825012Z,stars,github_repository,C#,MIT License,influxdb-client-csharp,influxdata,10,0
+,,0,2021-06-23T06:50:11.897825012Z,2021-06-25T06:50:11.897825012Z,stars,github_repository,C#,MIT License,influxdb-client-csharp,influxdata,20,0
+,,0,2021-06-23T06:50:11.897825012Z,2021-06-25T06:50:11.897825012Z,stars,github_repository,C#,MIT License,influxdb-client-csharp,influxdata,30,0
+,,0,2021-06-23T06:50:11.897825012Z,2021-06-25T06:50:11.897825012Z,stars,github_repository,C#,MIT License,influxdb-client-csharp,influxdata,40,0
+,,0,2021-06-23T06:50:11.897825012Z,2021-06-25T06:50:11.897825012Z,stars,github_repository,C#,MIT License,influxdb-client-csharp,influxdata,50,0
+,,0,2021-06-23T06:50:11.897825012Z,2021-06-25T06:50:11.897825012Z,stars,github_repository,C#,MIT License,influxdb-client-csharp,influxdata,60,0
+,,0,2021-06-23T06:50:11.897825012Z,2021-06-25T06:50:11.897825012Z,stars,github_repository,C#,MIT License,influxdb-client-csharp,influxdata,70,0
+,,0,2021-06-23T06:50:11.897825012Z,2021-06-25T06:50:11.897825012Z,stars,github_repository,C#,MIT License,influxdb-client-csharp,influxdata,80,0
+,,0,2021-06-23T06:50:11.897825012Z,2021-06-25T06:50:11.897825012Z,stars,github_repository,C#,MIT License,influxdb-client-csharp,influxdata,90,0
+,,0,2021-06-23T06:50:11.897825012Z,2021-06-25T06:50:11.897825012Z,stars,github_repository,C#,MIT License,influxdb-client-csharp,influxdata,+Inf,15
+,,0,2021-06-23T06:50:11.897825012Z,2021-06-25T06:50:11.897825012Z,stars,github_repository,C#,MIT License,influxdb-client-csharp,influxdata,-Inf,15
+
+"""
+        tables = self._parse_to_tables(data=data)
+        self.assertEqual(1, tables.__len__())
+        self.assertEqual(12, tables[0].records.__len__())
+        self.assertEqual(math.inf, tables[0].records[10]["le"])
+        self.assertEqual(-math.inf, tables[0].records[11]["le"])
+
     @staticmethod
     def _parse_to_tables(data: str):
         fp = BytesIO(str.encode(data))