[fix] filtering on algo column extraction

Author: dem1fo

src/hashing/utils.ts

@@ -31,9 +31,9 @@ export function extractAlgoColumnsFromObject(
   }
 
   let output: Config.CoreConfiguration['algorithm']['columns'] = {
-    static: columnConfig.static.map((colName) => obj[colName]).filter(Boolean),
-    process: columnConfig.process.map((colName) => obj[colName]).filter(Boolean),
-    reference: columnConfig.reference.map((colName) => obj[colName]).filter(Boolean),
+    static: columnConfig.static.map((colName) => obj[colName]),
+    process: columnConfig.process.map((colName) => obj[colName]),
+    reference: columnConfig.reference.map((colName) => obj[colName]),
   };
 
   return output;

tests/hashing/utils.test.ts

@@ -35,7 +35,12 @@ describe("hashing::util", () => {
         reference: ['col_refa', 'col_refb'],
       },
       {},
-    )).toEqual({ static: [], process: [], reference: [] });
+    )).toEqual({ 
+      static: [ undefined, undefined ],
+      process: [ undefined, undefined ],
+      reference: [ undefined, undefined ]
+    });
+    // TODO: come back and revisit this - the undefineds are needed by the NWS tests
 
     expect(extractAlgoColumnsFromObject(
       {