exchanges: improves GetDefaultConfig method (#1245)

* exchanges: Add function to get standard config

* exchanges: add tests (cherry-pick here and above)

* after pick stuff

* cleanup

---------

Co-authored-by: Ryan O'Hara-Reid <ryan.oharareid@thrasher.io>

engine/engine_test.go

@@ -380,12 +380,38 @@ func TestGetDefaultConfigurations(t *testing.T) {
 
 			defaultCfg, err := exch.GetDefaultConfig(context.Background())
 			if err != nil {
-				// Use Error instead of fatal to allow all issues to arise
-				t.Error(err)
+				t.Fatal(err)
 			}
 
 			if defaultCfg == nil {
-				t.Error("expected config")
+				t.Fatal("expected config")
+			}
+
+			if defaultCfg.Name == "" {
+				t.Error("name unset SetDefaults() not called")
+			}
+
+			if !defaultCfg.Enabled {
+				t.Error("expected enabled", defaultCfg.Name)
+			}
+
+			if exch.SupportsWebsocket() {
+				if defaultCfg.WebsocketResponseCheckTimeout <= 0 {
+					t.Error("expected websocketResponseCheckTimeout to be greater than 0", defaultCfg.Name)
+				}
+
+				if defaultCfg.WebsocketResponseMaxLimit <= 0 {
+					t.Error("expected WebsocketResponseMaxLimit to be greater than 0", defaultCfg.Name)
+				}
+
+				if defaultCfg.WebsocketTrafficTimeout <= 0 {
+					t.Error("expected WebsocketTrafficTimeout to be greater than 0", defaultCfg.Name)
+				}
+			}
+
+			// Makes sure the config is valid and can be used to setup the exchange
+			if err := exch.Setup(defaultCfg); err != nil {
+				t.Fatal(err)
 			}
 		})
 	}