closes #227

contracts/Swaplace.sol

@@ -50,8 +50,11 @@ contract Swaplace is SwapFactory, ISwaplace, IERC165 {
       swap.config
     );
 
-    if (value > 0 && recipient == 0) {
-      if (value * 1e12 != msg.value) revert InvalidValue();
+    if (msg.value > 0) {
+      if (recipient == 0) {
+        if (value * 1e12 != msg.value) revert InvalidValue();
+      }
+      else revert InvalidSender();
     }
 
     emit SwapCreated(swapId, msg.sender, allowed);

contracts/interfaces/IErrors.sol

@@ -24,4 +24,9 @@ interface IErrors {
    * @dev Displayed when a low level call failed to execute.
    */
   error InvalidCall();
+
+  /**
+   * @dev Displayed when the wrong caller sends ethers. 
+   */
+  error InvalidSender();
 }

test/TestSwaplace.test.ts

@@ -590,6 +590,40 @@ describe("Swaplace", async function () {
           Swaplace.connect(owner).createSwap(swap, { value: 69 }),
         ).to.be.revertedWithCustomError(Swaplace, `InvalidValue`);
       });
+
+      it("Should revert when the {owner} sends ethers while not being set as the {recipient}", async function () {
+        const bidingAddr = [MockERC20.address];
+        const bidingAmountOrId = [50];
+
+        const askingAddr = [
+          MockERC20.address,
+          MockERC20.address,
+          MockERC20.address,
+        ];
+        const askingAmountOrId = [50, 100, 150];
+
+        const valueToSend: BigNumber = ethers.utils.parseEther("0.5");
+
+        const currentTimestamp = (await blocktimestamp()) + 1000000;
+        const config = await Swaplace.encodeConfig(
+          zeroAddress,
+          currentTimestamp,
+          1,
+          valueToSend.div(1e12),
+        );
+
+        const swap: Swap = await composeSwap(
+          owner.address,
+          config,
+          bidingAddr,
+          bidingAmountOrId,
+          askingAddr,
+          askingAmountOrId,
+        );
+        await expect(
+          Swaplace.connect(owner).createSwap(swap, { value: valueToSend }),
+        ).to.be.revertedWithCustomError(Swaplace, `InvalidSender`);
+      });
     });
   });