Integration tests for etf/ta (#4450)

* some adjustments and added int tests for etf/ta

* ruff

openbb_terminal/etf/etf_controller.py

@@ -259,7 +259,6 @@ class ETFController(BaseController):
 
             console.print(
                 f"Loading Daily data for {self.etf_name} with starting period {ns_parser.start.strftime('%Y-%m-%d')}.",
-                "\n",
             )
 
     @log_start_end(log=logger)

openbb_terminal/etf/technical_analysis/ta_controller.py

@@ -29,6 +29,7 @@ from openbb_terminal.helper_funcs import (
     EXPORT_ONLY_FIGURES_ALLOWED,
     check_non_negative,
     check_positive,
+    check_positive_float,
     check_positive_list,
     valid_date,
 )
@@ -980,7 +981,7 @@ class TechnicalAnalysisController(BaseController):
             "--std",
             action="store",
             dest="n_std",
-            type=check_positive,
+            type=check_positive_float,
             default=2,
             help="std",
             choices=np.arange(0.0, 10, 0.25).tolist(),

openbb_terminal/miscellaneous/integration_tests_scripts/etf/test_etf_ta.openbb

@@ -2,4 +2,51 @@ etf
 load spy
 ta
 ema
+ema --length 10 --offset 3
+sma
+sma --length 2 --offset 1
+wma
+wma --length 99 --offset 4
+hma
+hma --length 1 --offset 95
+zlma
+zlma --length 1 --offset 1
+vwap
+# vwap --offset 2 --start 2022-01-01 --end 2023-01-01
+cci
+cci --length 2 --scalar 10
+macd
+macd --fast 13 --slow 99 --signal 15
+rsi
+rsi --length 2 --scalar 10 --drift 7
+stoch
+stoch --fastkperiod 2 --slowdperiod 1
+fisher
+fisher --length 2
+cg
+cg --length 95
+clenow
+clenow --period 120
+demark
+demark --min 5
+adx
+adx --length 4 --scalar 10 --drift 2
+aroon
+aroon --length 2 --scalar 11
+bbands
+bbands --length 2 --std 0.25 --mamode zlma
+donchian
+donchian
+donchian --length_upper 2 --length_lower 1
+kc
+kc --length 2 --scalar 1 --mamode ema --offset 4
+atr
+atr --length 10 --mamode sma --offset 33
+ad
+ad --open
+adosc
+adosc --open --fast 2 --slow 1
+obv
+fib
+fib --period 30 --start 2021-01-01 --end 2023-01-01
 exit