exists Alias function added + tests

dm3-org · Jan 10, 2024 · ace7ab0 · ace7ab0
1 parent ed3e01b
commit ace7ab0
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diff --git a/packages/toplevel-alias/contracts/TopLevelAliasRegistry.sol b/packages/toplevel-alias/contracts/TopLevelAliasRegistry.sol
@@ -43,6 +43,15 @@ contract TopLevelAliasRegistry is Ownable {
         aliases[_name] = _alias;
         emit AliasSet(_name, _alias);
     }
+
+     /**
+     * @dev Checks if an alias exists for the given name.
+     * @param _name The name to check for an alias.
+     * @return bool True if an alias exists for the name, false otherwise.
+     */
+    function existsAlias(string memory _name) public view returns (bool) {
+        return bytes(aliases[_name]).length > 0;
+    }
 }
 
 
diff --git a/packages/toplevel-alias/test/TopLevelAliasRegistry.test.ts b/packages/toplevel-alias/test/TopLevelAliasRegistry.test.ts
@@ -104,6 +104,21 @@ describe('TopLevelAliasRegistry', function () {
         });
     });
 
+    describe('existsAlias Function', function () {
+        it('Should return true for an existing alias', async function () {
+            const name = '.alice';
+            const alias = '.alice.eth';
+            await topLevelAliasRegistry.connect(owner).setAlias(name, alias);
+            expect(await topLevelAliasRegistry.existsAlias(name)).to.be.true;
+        });
+
+        it('Should return false for a non-existing alias', async function () {
+            const nonExistentName = '.bob';
+            expect(await topLevelAliasRegistry.existsAlias(nonExistentName)).to
+                .be.false;
+        });
+    });
+
     describe('TopLevelAliasRegistry Gas Usage', function () {
         it('should measure gas used by setAlias function', async function () {
             const tx = await topLevelAliasRegistry