test fix: proactively clear the running swaps map

theoretically we don't need to clear it on native targets since the executable will terminate even without clearing, but for wasm the story isn't exactly the same, i presume

mm2src/mm2_main/src/lp_native_dex.rs

@@ -52,7 +52,8 @@ use crate::lp_message_service::{init_message_service, InitMessageServiceError};
 use crate::lp_network::{lp_network_ports, p2p_event_process_loop, subscribe_to_topic, NetIdError};
 use crate::lp_ordermatch::{broadcast_maker_orders_keep_alive_loop, clean_memory_loop, init_ordermatch_context,
                            lp_ordermatch_loop, orders_kick_start, BalanceUpdateOrdermatchHandler, OrdermatchInitError};
-use crate::lp_swap::{running_swaps_num, swap_kick_starts};
+use crate::lp_swap;
+use crate::lp_swap::swap_kick_starts;
 use crate::lp_wallet::{initialize_wallet_passphrase, WalletInitError};
 use crate::rpc::spawn_rpc;
 
@@ -535,6 +536,7 @@ pub async fn lp_init(ctx: MmArc, version: String, datetime: String) -> MmInitRes
         };
         Timer::sleep(0.2).await
     }
+    lp_swap::clear_running_swaps(&ctx);
 
     Ok(())
 }

mm2src/mm2_main/src/lp_swap.rs

@@ -655,10 +655,9 @@ pub fn get_locked_amount(ctx: &MmArc, coin: &str) -> MmNumber {
 }
 
 /// Get number of currently running swaps
-pub fn running_swaps_num(ctx: &MmArc) -> u64 {
+pub fn clear_running_swaps(ctx: &MmArc) {
     let swap_ctx = SwapsContext::from_ctx(ctx).unwrap();
-    let count = swap_ctx.running_swaps.lock().unwrap().len();
-    count as u64
+    swap_ctx.running_swaps.lock().unwrap().clear();
 }
 
 /// Get total amount of selected coin locked by all currently ongoing swaps except the one with selected uuid