test(token): add additional testcase(mint, burn, modify) (#1130)

* chore(token): add additional testcase(mint, burn, modify)

* chore: update CHANGELOG

* chore(token): remove unnecessary test suite

* chore(token): chore re-group imports

* chore(token): fix for conflict

* chore(token): reorder imports, remove unnecessary space

* chore(token): reorder imports

* chore(token): group positive and negative cases per tx

CHANGELOG.md

@@ -54,6 +54,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (refactor) [\#1114](https://github.com/Finschia/finschia-sdk/pull/1114) Check statistics and balance on x/collection mint and burn operations
 * (x/token) [\#1128](https://github.com/Finschia/finschia-sdk/pull/1128) add more unittest for MsgIssue of x/token
 * (x/token) [\#1129](https://github.com/Finschia/finschia-sdk/pull/1129) add more unittest for `MsgGrantPermission` and `MsgRevokePermission` of x/token
+* (x/token) [\#1130](https://github.com/Finschia/finschia-sdk/pull/1130) Add more unittest for MsgMint, MsgBurn, MsgOperatorBurn, MsgModify of x/token
 
 ### Bug Fixes
 * (ledger) [\#1040](https://github.com/Finschia/finschia-sdk/pull/1040) Fix a bug(unable to connect nano S plus ledger on ubuntu)

x/token/errors.go

@@ -8,25 +8,25 @@ const tokenCodespace = ModuleName
 
 var (
 	ErrTokenNotExist            = sdkerrors.Register(tokenCodespace, 2, "token does not exist")
-	ErrTokenNotMintable         = sdkerrors.Register(tokenCodespace, 3, "token is not mintable")
+	ErrTokenNotMintable         = sdkerrors.Register(tokenCodespace, 3, "token is not mintable") // Currently never used
 	ErrInvalidTokenName         = sdkerrors.Register(tokenCodespace, 4, "token name should not be empty")
 	ErrInvalidTokenDecimals     = sdkerrors.Register(tokenCodespace, 5, "token decimals should be within the range in 0 ~ 18")
 	ErrInvalidAmount            = sdkerrors.Register(tokenCodespace, 6, "invalid token amount")
 	ErrInvalidImageURILength    = sdkerrors.Register(tokenCodespace, 7, "invalid token uri length")
 	ErrInvalidNameLength        = sdkerrors.Register(tokenCodespace, 8, "invalid name length")
 	ErrInvalidTokenSymbol       = sdkerrors.Register(tokenCodespace, 9, "invalid token symbol")
 	ErrTokenNoPermission        = sdkerrors.Register(tokenCodespace, 10, "account does not have the permission")
-	ErrAccountExist             = sdkerrors.Register(tokenCodespace, 11, "account already exists")
-	ErrAccountNotExist          = sdkerrors.Register(tokenCodespace, 12, "account does not exists")
+	ErrAccountExist             = sdkerrors.Register(tokenCodespace, 11, "account already exists")  // Currently never used
+	ErrAccountNotExist          = sdkerrors.Register(tokenCodespace, 12, "account does not exists") // Currently never used
 	ErrInsufficientBalance      = sdkerrors.Register(tokenCodespace, 13, "insufficient balance")
-	ErrSupplyExist              = sdkerrors.Register(tokenCodespace, 14, "supply for token already exists")
-	ErrInsufficientSupply       = sdkerrors.Register(tokenCodespace, 15, "insufficient supply")
-	ErrInvalidChangesFieldCount = sdkerrors.Register(tokenCodespace, 16, "invalid count of field changes")
+	ErrSupplyExist              = sdkerrors.Register(tokenCodespace, 14, "supply for token already exists") // Currently never used
+	ErrInsufficientSupply       = sdkerrors.Register(tokenCodespace, 15, "insufficient supply")             // Currently never used
+	ErrInvalidChangesFieldCount = sdkerrors.Register(tokenCodespace, 16, "invalid count of field changes")  // Currently never used
 	ErrEmptyChanges             = sdkerrors.Register(tokenCodespace, 17, "changes is empty")
 	ErrInvalidChangesField      = sdkerrors.Register(tokenCodespace, 18, "invalid field of changes")
 	ErrDuplicateChangesField    = sdkerrors.Register(tokenCodespace, 19, "invalid field of changes")
 	ErrInvalidMetaLength        = sdkerrors.Register(tokenCodespace, 20, "invalid meta length")
-	ErrSupplyOverflow           = sdkerrors.Register(tokenCodespace, 21, "supply for token reached maximum")
+	ErrSupplyOverflow           = sdkerrors.Register(tokenCodespace, 21, "supply for token reached maximum") // Currently never used
 	ErrApproverProxySame        = sdkerrors.Register(tokenCodespace, 22, "approver is same with proxy")
 	ErrTokenNotApproved         = sdkerrors.Register(tokenCodespace, 23, "proxy is not approved on the token")
 	ErrTokenAlreadyApproved     = sdkerrors.Register(tokenCodespace, 24, "proxy is already approved on the token")