[Backport release/v2.x] Bridge testnet

evm/contracts/bridge/BlobstreamO.sol

@@ -45,7 +45,6 @@ contract BlobstreamO is ECDSA {
     uint256 public validatorTimestamp; /// Timestamp of the block where validator set is updated.
     address public deployer; /// Address that deployed the contract.
     bool public initialized; /// True if the contract is initialized.
-    bool public isTestnet = true; /// True if the contract is on testnet.
 
     /*Events*/
     event ValidatorSetUpdated(uint256 _powerThreshold, uint256 _validatorTimestamp, bytes32 _validatorSetHash);
@@ -59,7 +58,6 @@ contract BlobstreamO is ECDSA {
     error NotConsensusValue();
     error NotDeployer();
     error NotGuardian();
-    error NotTestnet();
     error StaleValidatorSet();
     error SuppliedValidatorSetInvalid();
     error ValidatorSetNotStale();
@@ -120,34 +118,6 @@ contract BlobstreamO is ECDSA {
         lastValidatorSetCheckpoint = _validatorSetCheckpoint;
     }
 
-    /// @notice This function is called by the guardian to reset the validator set
-    /// on testnet. Not to be used on mainnet.
-    /// @param _powerThreshold Amount of voting power needed to approve operations.
-    /// @param _validatorTimestamp The timestamp of the block where validator set is updated.
-    /// @param _validatorSetCheckpoint The hash of the validator set.
-    function guardianResetValidatorSetTestnet(
-        uint256 _powerThreshold,
-        uint256 _validatorTimestamp,
-        bytes32 _validatorSetCheckpoint
-    ) external {
-        if (msg.sender != guardian) {
-            revert NotGuardian();
-        }
-        if (!isTestnet) {
-            revert NotTestnet();
-        }
-        powerThreshold = _powerThreshold;
-        validatorTimestamp = _validatorTimestamp;
-        lastValidatorSetCheckpoint = _validatorSetCheckpoint;
-    }
-
-    function guardianThrowAwayReset() external {
-        if (msg.sender != guardian) {
-            revert NotGuardian();
-        }
-        isTestnet = false;
-    }
-
     /// @notice This updates the validator set by checking that the validators
     /// in the current validator set have signed off on the new validator set.
     /// @param _newValidatorSetHash The hash of the new validator set.

evm/contracts/testing/BlobstreamOTestnet.sol

@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
+
+import "../bridge/BlobstreamO.sol";
+
+contract BlobstreamOTestnet is BlobstreamO {
+    constructor(address _guardian) BlobstreamO(_guardian) {}
+
+     /// @notice This function is called by the guardian to reset the validator set
+    /// on testnet. Not to be used on mainnet.
+    /// @param _powerThreshold Amount of voting power needed to approve operations.
+    /// @param _validatorTimestamp The timestamp of the block where validator set is updated.
+    /// @param _validatorSetCheckpoint The hash of the validator set.
+    function guardianResetValidatorSetTestnet(
+        uint256 _powerThreshold,
+        uint256 _validatorTimestamp,
+        bytes32 _validatorSetCheckpoint
+    ) external {
+        if (msg.sender != guardian) {
+            revert NotGuardian();
+        }
+        powerThreshold = _powerThreshold;
+        validatorTimestamp = _validatorTimestamp;
+        lastValidatorSetCheckpoint = _validatorSetCheckpoint;
+    }
+}

evm/contracts/testing/TellorPlayground.sol

@@ -183,6 +183,11 @@ contract TellorPlayground {
         oracleMintRecipient = _oracle;
     }
 
+    function resetTotalSupply(uint256 totalSupply_) external {
+        require(msg.sender == deployer, "only deployer can reset total supply");
+        _totalSupply = totalSupply_;
+    }
+
     /**
      * @dev A mock function to submit a value to be read without reporter staking needed
      * @param _queryId the ID to associate the value to