refactoring

src/mwfin/functions.py

@@ -135,6 +135,16 @@ async def get_cash_flow_statement(*ticker_symbols: str, quarterly: bool = False,
     }
 
 
+@in_async_session
+async def _get_single_company_financials(ticker_symbol: str, quarterly: bool = False,
+                                         session: ClientSession = None) -> Dict[str, ResultDict]:
+    return {
+        constants.BS: await _get_financial_statement(constants.BS, ticker_symbol, quarterly, session),
+        constants.IS: await _get_financial_statement(constants.IS, ticker_symbol, quarterly, session),
+        constants.CF: await _get_financial_statement(constants.CF, ticker_symbol, quarterly, session)
+    }
+
+
 @in_async_session
 async def get_company_financials(*ticker_symbols: str, quarterly: bool = False,
                                  session: ClientSession = None) -> Union[Dict[str, ResultDict],
@@ -143,15 +153,5 @@ async def get_company_financials(*ticker_symbols: str, quarterly: bool = False,
     Returns all fundamentals (balance sheet, income statement and cash flow statement) of the specified company.
     """
     if len(ticker_symbols) == 1:
-        return {
-            constants.BS: await get_balance_sheet(ticker_symbols[0], quarterly=quarterly, session=session),
-            constants.IS: await get_income_statement(ticker_symbols[0], quarterly=quarterly, session=session),
-            constants.CF: await get_cash_flow_statement(ticker_symbols[0], quarterly=quarterly, session=session)
-        }
-    return {
-        sym: {
-            constants.BS: await get_balance_sheet(sym, quarterly=quarterly, session=session),
-            constants.IS: await get_income_statement(sym, quarterly=quarterly, session=session),
-            constants.CF: await get_cash_flow_statement(sym, quarterly=quarterly, session=session)
-        } for sym in ticker_symbols
-    }
+        return await _get_single_company_financials(ticker_symbols[0], quarterly, session)
+    return {symbol: await _get_single_company_financials(symbol, quarterly, session) for symbol in ticker_symbols}

tests/test_functions.py

@@ -159,45 +159,36 @@ class FunctionsTestCase(IsolatedAsyncioTestCase):
     async def test_get_cash_flow_statement(self, mock__get_financial_statement):
         await self._helper_test_get_any_statement(CF, mock__get_financial_statement)
 
-    @patch.object(functions, 'get_cash_flow_statement')
-    @patch.object(functions, 'get_income_statement')
-    @patch.object(functions, 'get_balance_sheet')
-    async def test_get_company_financials(self, mock_get_bs, mock_get_is, mock_get_cf):
-        mock_end_dates = ('bar', 'baz')
-        mock_get_bs.return_value = {END_DATE: mock_end_dates, 'a': (1, 2)}
-        mock_get_is.return_value = {END_DATE: mock_end_dates, 'b': (2, 3)}
-        mock_get_cf.return_value = {END_DATE: mock_end_dates, 'c': (3, 4)}
-        expected_output = {
-            BS: {END_DATE: mock_end_dates, 'a': (1, 2)},
-            IS: {END_DATE: mock_end_dates, 'b': (2, 3)},
-            CF: {END_DATE: mock_end_dates, 'c': (3, 4)}
-        }
+    @patch.object(functions, '_get_financial_statement')
+    async def test__get_single_company_financials(self, mock__get_financial_statement):
+        symbol, quarterly, mock_session = 'foo', False, MagicMock()
+        mock__get_financial_statement.return_value = bar = 'bar'
+        expected_output = {BS: bar, IS: bar, CF: bar}
+        output = await functions._get_single_company_financials(symbol, quarterly, mock_session)
+        self.assertDictEqual(expected_output, output)
+        mock__get_financial_statement.assert_has_calls([
+            call(BS, symbol, quarterly, mock_session),
+            call(IS, symbol, quarterly, mock_session),
+            call(CF, symbol, quarterly, mock_session)
+        ])
+
+    @patch.object(functions, '_get_single_company_financials')
+    async def test_get_company_financials(self, mock__get_single_company_financials):
+        mock__get_single_company_financials.return_value = expected_output = 'baz'
         symbol, quarterly, mock_session = 'foo', False, MagicMock()
         output = await functions.get_company_financials(symbol, quarterly=quarterly, session=mock_session)
-        self.assertDictEqual(expected_output, output)
-        mock_get_bs.assert_called_once_with(symbol, quarterly=quarterly, session=mock_session)
-        mock_get_is.assert_called_once_with(symbol, quarterly=quarterly, session=mock_session)
-        mock_get_cf.assert_called_once_with(symbol, quarterly=quarterly, session=mock_session)
-        mock_get_bs.reset_mock()
-        mock_get_is.reset_mock()
-        mock_get_cf.reset_mock()
+        self.assertEqual(expected_output, output)
+        mock__get_single_company_financials.assert_called_once_with(symbol, quarterly, mock_session)
+        mock__get_single_company_financials.reset_mock()
 
         test_symbol1, test_symbol2 = 'x', 'y'
         expected_output = {test_symbol1: expected_output, test_symbol2: expected_output}
         output = await functions.get_company_financials(test_symbol1, test_symbol2,
                                                         quarterly=quarterly, session=mock_session)
         self.assertDictEqual(expected_output, output)
-        mock_get_bs.assert_has_calls([
-            call(test_symbol1, quarterly=quarterly, session=mock_session),
-            call(test_symbol2, quarterly=quarterly, session=mock_session)
-        ])
-        mock_get_is.assert_has_calls([
-            call(test_symbol1, quarterly=quarterly, session=mock_session),
-            call(test_symbol2, quarterly=quarterly, session=mock_session)
-        ])
-        mock_get_cf.assert_has_calls([
-            call(test_symbol1, quarterly=quarterly, session=mock_session),
-            call(test_symbol2, quarterly=quarterly, session=mock_session)
+        mock__get_single_company_financials.assert_has_calls([
+            call(test_symbol1, quarterly, mock_session),
+            call(test_symbol2, quarterly, mock_session)
         ])
 
     @patch.object(functions, 'ClientSession')