only allow certain denoms for auctions

config.yml

@@ -28,9 +28,9 @@ genesis:
 
 accounts:
   - name: alice
-    coins: ["20000usdc", "200000000000uclr"]
+    coins: ["20000000000uusdc", "200000000000uclr"]
   - name: bob
-    coins: ["10000usdc", "100000000000uclr"]
+    coins: ["10000000000uusdc", "100000000000uclr"]
 validator:
   name: alice
   staked: "100000000uclr"
@@ -41,4 +41,4 @@ client:
   #   path: "vue/src/store"
 faucet:
   name: bob
-  coins: ["500usdc", "100000000uclr"]
+  coins: ["500uusdc", "100000000uclr"]

x/colinearcore/auctionconfig/config.go

@@ -1,5 +1,9 @@
 package auctionconfig
 
+// Allowed Denoms
+// note: as a slice, values can't be immutable, but length can be
+var AllowedAuctionDenoms = [...]string{"uusdc", "uclr"}
+
 const (
 	// Times
 	AuctionTime = 10 // 10 blocks = ~10-30 seconds

x/colinearcore/keeper/msg_server_new_auction.go

@@ -24,6 +24,15 @@ func (k msgServer) NewAuction(goCtx context.Context, msg *types.MsgNewAuction) (
 
 	auctionLen := msg.LeaseEnd - uint64(ctx.BlockTime().Unix())
 
+	// check that submitted denom is allowed
+	for _, denom := range auctionconfig.AllowedAuctionDenoms {
+		if msg.Denom == denom {
+			goto found
+		}
+	}
+	return nil, fmt.Errorf("denom %s is not allowed; must be in %v", msg.Denom, auctionconfig.AllowedAuctionDenoms)
+found:
+
 	if auctionLen < auctionconfig.MinLeasePeriod {
 		return nil, fmt.Errorf(
 			"Auction length %d is below min lease period of %d",