Add two more unit tests for covering pair that are in a blacklist, and unknown pairs in the conf

freqtrade/tests/test_acl_pair.py

@@ -16,6 +16,9 @@ def whitelist_conf():
                 "BTC_SWT",
                 "BTC_BCC"
             ],
+            "pair_blacklist": [		
+                "BTC_BLK"
+	     ],
         },
     }
 
@@ -28,15 +31,27 @@ def get_health():
             {'Currency': 'TKN',
              'IsActive': True,
              'BaseVolume': 1664
-             }]
+             },
+            {'Currency': 'BLK',
+             'IsActive': True,
+             'BaseVolume': 4096
+             }
+]
 
 
 def get_health_empty():
     return []
 
-# below three test could be merged into a single
-# test that ran randomlly generated health lists
-
+def test_refresh_market_pair_not_in_whitelist(mocker):
+    conf = whitelist_conf()
+    mocker.patch.dict('freqtrade.main._CONF', conf)
+    mocker.patch.multiple('freqtrade.main.exchange',
+                          get_wallet_health=get_health)
+    refreshedwhitelist = refresh_whitelist(conf['exchange']['pair_whitelist']+ ['BTC_XXX'])
+    # List ordered by BaseVolume
+    whitelist = ['BTC_ETH', 'BTC_TKN']
+    # Ensure all except those in whitelist are removed
+    assert whitelist == refreshedwhitelist
 
 def test_refresh_whitelist(mocker):
     conf = whitelist_conf()
@@ -44,6 +59,7 @@ def test_refresh_whitelist(mocker):
     mocker.patch.multiple('freqtrade.main.exchange',
                           get_wallet_health=get_health)
     refreshedwhitelist = refresh_whitelist(conf['exchange']['pair_whitelist'])
+    # List ordered by BaseVolume
     whitelist = ['BTC_ETH', 'BTC_TKN']
     # Ensure all except those in whitelist are removed
     assert whitelist == refreshedwhitelist