test: added Deposit unit tests

contracts/Reputation.sol

@@ -11,6 +11,7 @@ contract Reputation is IReputation, Owned(msg.sender) {
     uint256 public constant magicValue = 2.5e11;
 
     // prettier-ignore
+    // solhint-disable no-inline-assembly
     // solhint-disable-next-line no-empty-blocks
     constructor(/*  */) {/*  */}
 

contracts/lib/mock/mockToken.sol

@@ -7,4 +7,16 @@ contract MockToken is ERC20 {
     constructor(uint256 supply) ERC20("MockBRL", "MBRL", 18) {
         _mint(msg.sender, supply);
     }
+
+    function mint(
+        address[] memory to,
+        uint256 value
+    ) public virtual {
+        uint256 len = to.length;
+        uint256 j;
+        while (j < len) {
+            _mint(to[j], value);
+            ++j;
+        }
+    }
 }

contracts/p2pix.sol

@@ -213,7 +213,7 @@ contract P2PIX is
             uint256 spendLimit;
             (spendLimit) = _limiter(userCredit);
 
-            if (l.amount > spendLimit)
+            if (l.amount > spendLimit || l.amount > 1e6)
                 revert AmountNotAllowed();
 
             mapLocks[lockID] = l;
@@ -473,10 +473,12 @@ contract P2PIX is
         assembly {
             // first 32 bytes eq to array's length
             let tLen := mload(_tokens)
+            // NoTokens()
             if iszero(tLen) {
                 mstore(0x00, 0xdf957883)
                 revert(0x1c, 0x04)
             }
+            // LengthMismatch()
             if iszero(eq(tLen, mload(_states))) {
                 mstore(0x00, 0xff633a38)
                 revert(0x1c, 0x04)
@@ -489,6 +491,7 @@ contract P2PIX is
                 tLoc := add(tLoc, 0x20)
                 sLoc := add(sLoc, 0x20)
             } {
+                // cache hashmap entry in scratch space
                 mstore(0x00, mload(tLoc))
                 mstore(0x20, allowedERC20s.slot)
                 let mapSlot := keccak256(0x00, 0x40)