Add getter for gauge types in stakeless gauge checkpointer.

pkg/interfaces/CHANGELOG.md

@@ -20,7 +20,7 @@
 - Moved `GaugeType` from `IGaugeAdder` to `IL2GaugeCheckpointer`, and adjusted types to accept new networks.
 - Refactored `IL2GaugeCheckpointer` to `StakelessGaugeCheckpointer`.
   - Removed `isSupportedGaugeType` from interface.
-  - Added `getRoundedDownBlockTimestamp` to interface.
+  - Added `getRoundedDownBlockTimestamp` and `getGaugeTypes` to interface.
 - Bumped minimum compiler version from `0.7.0` to `0.7.1` in `BalancerErrors`.
 - `IVersion` moved from `pool-utils` to `solidity-utils`.
 

pkg/interfaces/contracts/liquidity-mining/IStakelessGaugeCheckpointer.sol

@@ -42,6 +42,11 @@ interface IStakelessGaugeCheckpointer {
      */
     function getGaugeAdder() external view returns (IGaugeAdder);
 
+    /**
+     * @notice Returns gauge types available in the checkpointer.
+     */
+    function getGaugeTypes() external view returns (string[] memory);
+
     /**
      * @notice Adds an array of gauges from the given type. This is a permissioned function.
      * @dev Gauges added will be considered when performing checkpoints.

pkg/liquidity-mining/contracts/gauges/StakelessGaugeCheckpointer.sol

@@ -60,6 +60,11 @@ contract StakelessGaugeCheckpointer is IStakelessGaugeCheckpointer, ReentrancyGu
         return _gaugeAdder;
     }
 
+    /// @inheritdoc IStakelessGaugeCheckpointer
+    function getGaugeTypes() external view override returns (string[] memory) {
+        return _gaugeAdder.getGaugeTypes();
+    }
+
     /// @inheritdoc IStakelessGaugeCheckpointer
     function addGaugesWithVerifiedType(string memory gaugeType, IStakelessGauge[] calldata gauges)
         external

pkg/liquidity-mining/test/StakelessGaugeCheckpointer.test.ts

@@ -112,6 +112,11 @@ describe('StakelessGaugeCheckpointer', () => {
         (await currentWeekTimestamp()).sub(WEEK)
       );
     });
+
+    it('returns gauge types', async () => {
+      const gaugeTypesInAdder = await gaugeAdder.getGaugeTypes();
+      expect(await stakelessGaugeCheckpointer.getGaugeTypes()).to.be.deep.eq(gaugeTypesInAdder);
+    });
   });
 
   GAUGE_TYPES.forEach((gaugeType) => {