Add test showing broken inheritance hyperopt

tests/optimize/test_hyperopt.py

@@ -855,7 +855,7 @@ def test_in_strategy_auto_hyperopt(mocker, hyperopt_conf, tmpdir, fee) -> None:
         'strategy': 'HyperoptableStrategy',
         'user_data_dir': Path(tmpdir),
         'hyperopt_random_state': 42,
-        'spaces': ['all']
+        'spaces': ['all'],
     })
     hyperopt = Hyperopt(hyperopt_conf)
     hyperopt.backtesting.exchange.get_max_leverage = MagicMock(return_value=1.0)
@@ -883,6 +883,40 @@ def test_in_strategy_auto_hyperopt(mocker, hyperopt_conf, tmpdir, fee) -> None:
         hyperopt.get_optimizer([], 2)
 
 
+def test_in_strategy_auto_hyperopt_with_parallel(mocker, hyperopt_conf, tmpdir, fee) -> None:
+    # patch_exchange(mocker)
+    # TODO: This reaches out to the exchange!
+    mocker.patch('freqtrade.exchange.Exchange.get_fee', fee)
+    (Path(tmpdir) / 'hyperopt_results').mkdir(parents=True)
+    # No hyperopt needed
+    hyperopt_conf.update({
+        'strategy': 'HyperoptableStrategy',
+        'user_data_dir': Path(tmpdir),
+        'hyperopt_random_state': 42,
+        'spaces': ['all'],
+        # Enforce parallelity
+        'epochs': 2,
+        'hyperopt_jobs': 2,
+        'fee': fee.return_value,
+    })
+    hyperopt = Hyperopt(hyperopt_conf)
+    hyperopt.backtesting.exchange.get_max_leverage = lambda *x, **xx: 1.0
+    assert isinstance(hyperopt.custom_hyperopt, HyperOptAuto)
+    assert isinstance(hyperopt.backtesting.strategy.buy_rsi, IntParameter)
+    assert hyperopt.backtesting.strategy.bot_loop_started is True
+
+    assert hyperopt.backtesting.strategy.buy_rsi.in_space is True
+    assert hyperopt.backtesting.strategy.buy_rsi.value == 35
+    assert hyperopt.backtesting.strategy.sell_rsi.value == 74
+    assert hyperopt.backtesting.strategy.protection_cooldown_lookback.value == 30
+    buy_rsi_range = hyperopt.backtesting.strategy.buy_rsi.range
+    assert isinstance(buy_rsi_range, range)
+    # Range from 0 - 50 (inclusive)
+    assert len(list(buy_rsi_range)) == 51
+
+    hyperopt.start()
+
+
 def test_SKDecimal():
     space = SKDecimal(1, 2, decimals=2)
     assert 1.5 in space