fixes southwestgas bill date

Author: andobolocco

lib/documentProcessor.test.js

@@ -82,7 +82,7 @@ it('Expect SOUTHWESTGAS bill to be detected and processed', async () => {
   expect(response.extracted.state).toBe('AZ');
   expect(response.extracted.zip_code).toBe('85310');
   expect(response.extracted.bill_amount).toBe('$33.72');
-  expect(response.extracted.bill_date).toBe('05/01/20');
+  expect(response.extracted.bill_date).toBe('05/20/20');
   expect(response.extracted.account_number).toBe('421-6415508-002');
 });
 

lib/documentTypes/southwestGasBill.js

@@ -49,7 +49,7 @@ module.exports = {
     const bill_amount = keyValues['Amount due:'];
 
     // bill date
-    const bill_date = keyValues['DATE MAILED'];
+    const bill_date = keyValues['DUE DATE'];
 
     // account number
     const account_number = keyValues['ACCOUNT NUMBER'];