diff --git a/packages/hardhat-core/test/internal/hardhat-network/abi/ERC20/ERC20.json b/packages/hardhat-core/test/internal/hardhat-network/abi/ERC20/ERC20.json
deleted file mode 100644
index 369b77adb5..0000000000
--- a/packages/hardhat-core/test/internal/hardhat-network/abi/ERC20/ERC20.json
+++ /dev/null
@@ -1,563 +0,0 @@
-[
-  {
-    "inputs": [
-      {
-        "internalType": "uint256",
-        "name": "chainId_",
-        "type": "uint256"
-      }
-    ],
-    "payable": false,
-    "stateMutability": "nonpayable",
-    "type": "constructor"
-  },
-  {
-    "anonymous": false,
-    "inputs": [
-      {
-        "indexed": true,
-        "internalType": "address",
-        "name": "src",
-        "type": "address"
-      },
-      {
-        "indexed": true,
-        "internalType": "address",
-        "name": "guy",
-        "type": "address"
-      },
-      {
-        "indexed": false,
-        "internalType": "uint256",
-        "name": "wad",
-        "type": "uint256"
-      }
-    ],
-    "name": "Approval",
-    "type": "event"
-  },
-  {
-    "anonymous": true,
-    "inputs": [
-      {
-        "indexed": true,
-        "internalType": "bytes4",
-        "name": "sig",
-        "type": "bytes4"
-      },
-      {
-        "indexed": true,
-        "internalType": "address",
-        "name": "usr",
-        "type": "address"
-      },
-      {
-        "indexed": true,
-        "internalType": "bytes32",
-        "name": "arg1",
-        "type": "bytes32"
-      },
-      {
-        "indexed": true,
-        "internalType": "bytes32",
-        "name": "arg2",
-        "type": "bytes32"
-      },
-      {
-        "indexed": false,
-        "internalType": "bytes",
-        "name": "data",
-        "type": "bytes"
-      }
-    ],
-    "name": "LogNote",
-    "type": "event"
-  },
-  {
-    "anonymous": false,
-    "inputs": [
-      {
-        "indexed": true,
-        "internalType": "address",
-        "name": "src",
-        "type": "address"
-      },
-      {
-        "indexed": true,
-        "internalType": "address",
-        "name": "dst",
-        "type": "address"
-      },
-      {
-        "indexed": false,
-        "internalType": "uint256",
-        "name": "wad",
-        "type": "uint256"
-      }
-    ],
-    "name": "Transfer",
-    "type": "event"
-  },
-  {
-    "constant": true,
-    "inputs": [],
-    "name": "DOMAIN_SEPARATOR",
-    "outputs": [
-      {
-        "internalType": "bytes32",
-        "name": "",
-        "type": "bytes32"
-      }
-    ],
-    "payable": false,
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "constant": true,
-    "inputs": [],
-    "name": "PERMIT_TYPEHASH",
-    "outputs": [
-      {
-        "internalType": "bytes32",
-        "name": "",
-        "type": "bytes32"
-      }
-    ],
-    "payable": false,
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "constant": true,
-    "inputs": [
-      {
-        "internalType": "address",
-        "name": "",
-        "type": "address"
-      },
-      {
-        "internalType": "address",
-        "name": "",
-        "type": "address"
-      }
-    ],
-    "name": "allowance",
-    "outputs": [
-      {
-        "internalType": "uint256",
-        "name": "",
-        "type": "uint256"
-      }
-    ],
-    "payable": false,
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "constant": false,
-    "inputs": [
-      {
-        "internalType": "address",
-        "name": "usr",
-        "type": "address"
-      },
-      {
-        "internalType": "uint256",
-        "name": "wad",
-        "type": "uint256"
-      }
-    ],
-    "name": "approve",
-    "outputs": [
-      {
-        "internalType": "bool",
-        "name": "",
-        "type": "bool"
-      }
-    ],
-    "payable": false,
-    "stateMutability": "nonpayable",
-    "type": "function"
-  },
-  {
-    "constant": true,
-    "inputs": [
-      {
-        "internalType": "address",
-        "name": "",
-        "type": "address"
-      }
-    ],
-    "name": "balanceOf",
-    "outputs": [
-      {
-        "internalType": "uint256",
-        "name": "",
-        "type": "uint256"
-      }
-    ],
-    "payable": false,
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "constant": false,
-    "inputs": [
-      {
-        "internalType": "address",
-        "name": "usr",
-        "type": "address"
-      },
-      {
-        "internalType": "uint256",
-        "name": "wad",
-        "type": "uint256"
-      }
-    ],
-    "name": "burn",
-    "outputs": [],
-    "payable": false,
-    "stateMutability": "nonpayable",
-    "type": "function"
-  },
-  {
-    "constant": true,
-    "inputs": [],
-    "name": "decimals",
-    "outputs": [
-      {
-        "internalType": "uint8",
-        "name": "",
-        "type": "uint8"
-      }
-    ],
-    "payable": false,
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "constant": false,
-    "inputs": [
-      {
-        "internalType": "address",
-        "name": "guy",
-        "type": "address"
-      }
-    ],
-    "name": "deny",
-    "outputs": [],
-    "payable": false,
-    "stateMutability": "nonpayable",
-    "type": "function"
-  },
-  {
-    "constant": false,
-    "inputs": [
-      {
-        "internalType": "address",
-        "name": "usr",
-        "type": "address"
-      },
-      {
-        "internalType": "uint256",
-        "name": "wad",
-        "type": "uint256"
-      }
-    ],
-    "name": "mint",
-    "outputs": [],
-    "payable": false,
-    "stateMutability": "nonpayable",
-    "type": "function"
-  },
-  {
-    "constant": false,
-    "inputs": [
-      {
-        "internalType": "address",
-        "name": "src",
-        "type": "address"
-      },
-      {
-        "internalType": "address",
-        "name": "dst",
-        "type": "address"
-      },
-      {
-        "internalType": "uint256",
-        "name": "wad",
-        "type": "uint256"
-      }
-    ],
-    "name": "move",
-    "outputs": [],
-    "payable": false,
-    "stateMutability": "nonpayable",
-    "type": "function"
-  },
-  {
-    "constant": true,
-    "inputs": [],
-    "name": "name",
-    "outputs": [
-      {
-        "internalType": "string",
-        "name": "",
-        "type": "string"
-      }
-    ],
-    "payable": false,
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "constant": true,
-    "inputs": [
-      {
-        "internalType": "address",
-        "name": "",
-        "type": "address"
-      }
-    ],
-    "name": "nonces",
-    "outputs": [
-      {
-        "internalType": "uint256",
-        "name": "",
-        "type": "uint256"
-      }
-    ],
-    "payable": false,
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "constant": false,
-    "inputs": [
-      {
-        "internalType": "address",
-        "name": "holder",
-        "type": "address"
-      },
-      {
-        "internalType": "address",
-        "name": "spender",
-        "type": "address"
-      },
-      {
-        "internalType": "uint256",
-        "name": "nonce",
-        "type": "uint256"
-      },
-      {
-        "internalType": "uint256",
-        "name": "expiry",
-        "type": "uint256"
-      },
-      {
-        "internalType": "bool",
-        "name": "allowed",
-        "type": "bool"
-      },
-      {
-        "internalType": "uint8",
-        "name": "v",
-        "type": "uint8"
-      },
-      {
-        "internalType": "bytes32",
-        "name": "r",
-        "type": "bytes32"
-      },
-      {
-        "internalType": "bytes32",
-        "name": "s",
-        "type": "bytes32"
-      }
-    ],
-    "name": "permit",
-    "outputs": [],
-    "payable": false,
-    "stateMutability": "nonpayable",
-    "type": "function"
-  },
-  {
-    "constant": false,
-    "inputs": [
-      {
-        "internalType": "address",
-        "name": "usr",
-        "type": "address"
-      },
-      {
-        "internalType": "uint256",
-        "name": "wad",
-        "type": "uint256"
-      }
-    ],
-    "name": "pull",
-    "outputs": [],
-    "payable": false,
-    "stateMutability": "nonpayable",
-    "type": "function"
-  },
-  {
-    "constant": false,
-    "inputs": [
-      {
-        "internalType": "address",
-        "name": "usr",
-        "type": "address"
-      },
-      {
-        "internalType": "uint256",
-        "name": "wad",
-        "type": "uint256"
-      }
-    ],
-    "name": "push",
-    "outputs": [],
-    "payable": false,
-    "stateMutability": "nonpayable",
-    "type": "function"
-  },
-  {
-    "constant": false,
-    "inputs": [
-      {
-        "internalType": "address",
-        "name": "guy",
-        "type": "address"
-      }
-    ],
-    "name": "rely",
-    "outputs": [],
-    "payable": false,
-    "stateMutability": "nonpayable",
-    "type": "function"
-  },
-  {
-    "constant": true,
-    "inputs": [],
-    "name": "symbol",
-    "outputs": [
-      {
-        "internalType": "string",
-        "name": "",
-        "type": "string"
-      }
-    ],
-    "payable": false,
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "constant": true,
-    "inputs": [],
-    "name": "totalSupply",
-    "outputs": [
-      {
-        "internalType": "uint256",
-        "name": "",
-        "type": "uint256"
-      }
-    ],
-    "payable": false,
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "constant": false,
-    "inputs": [
-      {
-        "internalType": "address",
-        "name": "dst",
-        "type": "address"
-      },
-      {
-        "internalType": "uint256",
-        "name": "wad",
-        "type": "uint256"
-      }
-    ],
-    "name": "transfer",
-    "outputs": [
-      {
-        "internalType": "bool",
-        "name": "",
-        "type": "bool"
-      }
-    ],
-    "payable": false,
-    "stateMutability": "nonpayable",
-    "type": "function"
-  },
-  {
-    "constant": false,
-    "inputs": [
-      {
-        "internalType": "address",
-        "name": "src",
-        "type": "address"
-      },
-      {
-        "internalType": "address",
-        "name": "dst",
-        "type": "address"
-      },
-      {
-        "internalType": "uint256",
-        "name": "wad",
-        "type": "uint256"
-      }
-    ],
-    "name": "transferFrom",
-    "outputs": [
-      {
-        "internalType": "bool",
-        "name": "",
-        "type": "bool"
-      }
-    ],
-    "payable": false,
-    "stateMutability": "nonpayable",
-    "type": "function"
-  },
-  {
-    "constant": true,
-    "inputs": [],
-    "name": "version",
-    "outputs": [
-      {
-        "internalType": "string",
-        "name": "",
-        "type": "string"
-      }
-    ],
-    "payable": false,
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "constant": true,
-    "inputs": [
-      {
-        "internalType": "address",
-        "name": "",
-        "type": "address"
-      }
-    ],
-    "name": "wards",
-    "outputs": [
-      {
-        "internalType": "uint256",
-        "name": "",
-        "type": "uint256"
-      }
-    ],
-    "payable": false,
-    "stateMutability": "view",
-    "type": "function"
-  }
-]
diff --git a/packages/hardhat-core/test/internal/hardhat-network/abi/Uniswap/Exchange.json b/packages/hardhat-core/test/internal/hardhat-network/abi/Uniswap/Exchange.json
deleted file mode 100644
index a256e5fef0..0000000000
--- a/packages/hardhat-core/test/internal/hardhat-network/abi/Uniswap/Exchange.json
+++ /dev/null
@@ -1,971 +0,0 @@
-[
-  {
-    "name": "TokenPurchase",
-    "inputs": [
-      {
-        "type": "address",
-        "name": "buyer",
-        "indexed": true
-      },
-      {
-        "type": "uint256",
-        "name": "eth_sold",
-        "indexed": true
-      },
-      {
-        "type": "uint256",
-        "name": "tokens_bought",
-        "indexed": true
-      }
-    ],
-    "anonymous": false,
-    "type": "event"
-  },
-  {
-    "name": "EthPurchase",
-    "inputs": [
-      {
-        "type": "address",
-        "name": "buyer",
-        "indexed": true
-      },
-      {
-        "type": "uint256",
-        "name": "tokens_sold",
-        "indexed": true
-      },
-      {
-        "type": "uint256",
-        "name": "eth_bought",
-        "indexed": true
-      }
-    ],
-    "anonymous": false,
-    "type": "event"
-  },
-  {
-    "name": "AddLiquidity",
-    "inputs": [
-      {
-        "type": "address",
-        "name": "provider",
-        "indexed": true
-      },
-      {
-        "type": "uint256",
-        "name": "eth_amount",
-        "indexed": true
-      },
-      {
-        "type": "uint256",
-        "name": "token_amount",
-        "indexed": true
-      }
-    ],
-    "anonymous": false,
-    "type": "event"
-  },
-  {
-    "name": "RemoveLiquidity",
-    "inputs": [
-      {
-        "type": "address",
-        "name": "provider",
-        "indexed": true
-      },
-      {
-        "type": "uint256",
-        "name": "eth_amount",
-        "indexed": true
-      },
-      {
-        "type": "uint256",
-        "name": "token_amount",
-        "indexed": true
-      }
-    ],
-    "anonymous": false,
-    "type": "event"
-  },
-  {
-    "name": "Transfer",
-    "inputs": [
-      {
-        "type": "address",
-        "name": "_from",
-        "indexed": true
-      },
-      {
-        "type": "address",
-        "name": "_to",
-        "indexed": true
-      },
-      {
-        "type": "uint256",
-        "name": "_value",
-        "indexed": false
-      }
-    ],
-    "anonymous": false,
-    "type": "event"
-  },
-  {
-    "name": "Approval",
-    "inputs": [
-      {
-        "type": "address",
-        "name": "_owner",
-        "indexed": true
-      },
-      {
-        "type": "address",
-        "name": "_spender",
-        "indexed": true
-      },
-      {
-        "type": "uint256",
-        "name": "_value",
-        "indexed": false
-      }
-    ],
-    "anonymous": false,
-    "type": "event"
-  },
-  {
-    "name": "setup",
-    "outputs": [],
-    "inputs": [
-      {
-        "type": "address",
-        "name": "token_addr"
-      }
-    ],
-    "constant": false,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "addLiquidity",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "uint256",
-        "name": "min_liquidity"
-      },
-      {
-        "type": "uint256",
-        "name": "max_tokens"
-      },
-      {
-        "type": "uint256",
-        "name": "deadline"
-      }
-    ],
-    "constant": false,
-    "payable": true,
-    "type": "function"
-  },
-  {
-    "name": "removeLiquidity",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      },
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "uint256",
-        "name": "amount"
-      },
-      {
-        "type": "uint256",
-        "name": "min_eth"
-      },
-      {
-        "type": "uint256",
-        "name": "min_tokens"
-      },
-      {
-        "type": "uint256",
-        "name": "deadline"
-      }
-    ],
-    "constant": false,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "__default__",
-    "outputs": [],
-    "inputs": [],
-    "constant": false,
-    "payable": true,
-    "type": "function"
-  },
-  {
-    "name": "ethToTokenSwapInput",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "uint256",
-        "name": "min_tokens"
-      },
-      {
-        "type": "uint256",
-        "name": "deadline"
-      }
-    ],
-    "constant": false,
-    "payable": true,
-    "type": "function"
-  },
-  {
-    "name": "ethToTokenTransferInput",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "uint256",
-        "name": "min_tokens"
-      },
-      {
-        "type": "uint256",
-        "name": "deadline"
-      },
-      {
-        "type": "address",
-        "name": "recipient"
-      }
-    ],
-    "constant": false,
-    "payable": true,
-    "type": "function"
-  },
-  {
-    "name": "ethToTokenSwapOutput",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "uint256",
-        "name": "tokens_bought"
-      },
-      {
-        "type": "uint256",
-        "name": "deadline"
-      }
-    ],
-    "constant": false,
-    "payable": true,
-    "type": "function"
-  },
-  {
-    "name": "ethToTokenTransferOutput",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "uint256",
-        "name": "tokens_bought"
-      },
-      {
-        "type": "uint256",
-        "name": "deadline"
-      },
-      {
-        "type": "address",
-        "name": "recipient"
-      }
-    ],
-    "constant": false,
-    "payable": true,
-    "type": "function"
-  },
-  {
-    "name": "tokenToEthSwapInput",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "uint256",
-        "name": "tokens_sold"
-      },
-      {
-        "type": "uint256",
-        "name": "min_eth"
-      },
-      {
-        "type": "uint256",
-        "name": "deadline"
-      }
-    ],
-    "constant": false,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "tokenToEthTransferInput",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "uint256",
-        "name": "tokens_sold"
-      },
-      {
-        "type": "uint256",
-        "name": "min_eth"
-      },
-      {
-        "type": "uint256",
-        "name": "deadline"
-      },
-      {
-        "type": "address",
-        "name": "recipient"
-      }
-    ],
-    "constant": false,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "tokenToEthSwapOutput",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "uint256",
-        "name": "eth_bought"
-      },
-      {
-        "type": "uint256",
-        "name": "max_tokens"
-      },
-      {
-        "type": "uint256",
-        "name": "deadline"
-      }
-    ],
-    "constant": false,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "tokenToEthTransferOutput",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "uint256",
-        "name": "eth_bought"
-      },
-      {
-        "type": "uint256",
-        "name": "max_tokens"
-      },
-      {
-        "type": "uint256",
-        "name": "deadline"
-      },
-      {
-        "type": "address",
-        "name": "recipient"
-      }
-    ],
-    "constant": false,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "tokenToTokenSwapInput",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "uint256",
-        "name": "tokens_sold"
-      },
-      {
-        "type": "uint256",
-        "name": "min_tokens_bought"
-      },
-      {
-        "type": "uint256",
-        "name": "min_eth_bought"
-      },
-      {
-        "type": "uint256",
-        "name": "deadline"
-      },
-      {
-        "type": "address",
-        "name": "token_addr"
-      }
-    ],
-    "constant": false,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "tokenToTokenTransferInput",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "uint256",
-        "name": "tokens_sold"
-      },
-      {
-        "type": "uint256",
-        "name": "min_tokens_bought"
-      },
-      {
-        "type": "uint256",
-        "name": "min_eth_bought"
-      },
-      {
-        "type": "uint256",
-        "name": "deadline"
-      },
-      {
-        "type": "address",
-        "name": "recipient"
-      },
-      {
-        "type": "address",
-        "name": "token_addr"
-      }
-    ],
-    "constant": false,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "tokenToTokenSwapOutput",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "uint256",
-        "name": "tokens_bought"
-      },
-      {
-        "type": "uint256",
-        "name": "max_tokens_sold"
-      },
-      {
-        "type": "uint256",
-        "name": "max_eth_sold"
-      },
-      {
-        "type": "uint256",
-        "name": "deadline"
-      },
-      {
-        "type": "address",
-        "name": "token_addr"
-      }
-    ],
-    "constant": false,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "tokenToTokenTransferOutput",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "uint256",
-        "name": "tokens_bought"
-      },
-      {
-        "type": "uint256",
-        "name": "max_tokens_sold"
-      },
-      {
-        "type": "uint256",
-        "name": "max_eth_sold"
-      },
-      {
-        "type": "uint256",
-        "name": "deadline"
-      },
-      {
-        "type": "address",
-        "name": "recipient"
-      },
-      {
-        "type": "address",
-        "name": "token_addr"
-      }
-    ],
-    "constant": false,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "tokenToExchangeSwapInput",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "uint256",
-        "name": "tokens_sold"
-      },
-      {
-        "type": "uint256",
-        "name": "min_tokens_bought"
-      },
-      {
-        "type": "uint256",
-        "name": "min_eth_bought"
-      },
-      {
-        "type": "uint256",
-        "name": "deadline"
-      },
-      {
-        "type": "address",
-        "name": "exchange_addr"
-      }
-    ],
-    "constant": false,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "tokenToExchangeTransferInput",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "uint256",
-        "name": "tokens_sold"
-      },
-      {
-        "type": "uint256",
-        "name": "min_tokens_bought"
-      },
-      {
-        "type": "uint256",
-        "name": "min_eth_bought"
-      },
-      {
-        "type": "uint256",
-        "name": "deadline"
-      },
-      {
-        "type": "address",
-        "name": "recipient"
-      },
-      {
-        "type": "address",
-        "name": "exchange_addr"
-      }
-    ],
-    "constant": false,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "tokenToExchangeSwapOutput",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "uint256",
-        "name": "tokens_bought"
-      },
-      {
-        "type": "uint256",
-        "name": "max_tokens_sold"
-      },
-      {
-        "type": "uint256",
-        "name": "max_eth_sold"
-      },
-      {
-        "type": "uint256",
-        "name": "deadline"
-      },
-      {
-        "type": "address",
-        "name": "exchange_addr"
-      }
-    ],
-    "constant": false,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "tokenToExchangeTransferOutput",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "uint256",
-        "name": "tokens_bought"
-      },
-      {
-        "type": "uint256",
-        "name": "max_tokens_sold"
-      },
-      {
-        "type": "uint256",
-        "name": "max_eth_sold"
-      },
-      {
-        "type": "uint256",
-        "name": "deadline"
-      },
-      {
-        "type": "address",
-        "name": "recipient"
-      },
-      {
-        "type": "address",
-        "name": "exchange_addr"
-      }
-    ],
-    "constant": false,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "getEthToTokenInputPrice",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "uint256",
-        "name": "eth_sold"
-      }
-    ],
-    "constant": true,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "getEthToTokenOutputPrice",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "uint256",
-        "name": "tokens_bought"
-      }
-    ],
-    "constant": true,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "getTokenToEthInputPrice",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "uint256",
-        "name": "tokens_sold"
-      }
-    ],
-    "constant": true,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "getTokenToEthOutputPrice",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "uint256",
-        "name": "eth_bought"
-      }
-    ],
-    "constant": true,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "tokenAddress",
-    "outputs": [
-      {
-        "type": "address",
-        "name": "out"
-      }
-    ],
-    "inputs": [],
-    "constant": true,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "factoryAddress",
-    "outputs": [
-      {
-        "type": "address",
-        "name": "out"
-      }
-    ],
-    "inputs": [],
-    "constant": true,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "balanceOf",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "address",
-        "name": "_owner"
-      }
-    ],
-    "constant": true,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "transfer",
-    "outputs": [
-      {
-        "type": "bool",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "address",
-        "name": "_to"
-      },
-      {
-        "type": "uint256",
-        "name": "_value"
-      }
-    ],
-    "constant": false,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "transferFrom",
-    "outputs": [
-      {
-        "type": "bool",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "address",
-        "name": "_from"
-      },
-      {
-        "type": "address",
-        "name": "_to"
-      },
-      {
-        "type": "uint256",
-        "name": "_value"
-      }
-    ],
-    "constant": false,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "approve",
-    "outputs": [
-      {
-        "type": "bool",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "address",
-        "name": "_spender"
-      },
-      {
-        "type": "uint256",
-        "name": "_value"
-      }
-    ],
-    "constant": false,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "allowance",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "address",
-        "name": "_owner"
-      },
-      {
-        "type": "address",
-        "name": "_spender"
-      }
-    ],
-    "constant": true,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "name",
-    "outputs": [
-      {
-        "type": "bytes32",
-        "name": "out"
-      }
-    ],
-    "inputs": [],
-    "constant": true,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "symbol",
-    "outputs": [
-      {
-        "type": "bytes32",
-        "name": "out"
-      }
-    ],
-    "inputs": [],
-    "constant": true,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "decimals",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [],
-    "constant": true,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "totalSupply",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [],
-    "constant": true,
-    "payable": false,
-    "type": "function"
-  }
-]
diff --git a/packages/hardhat-core/test/internal/hardhat-network/abi/Uniswap/Factory.json b/packages/hardhat-core/test/internal/hardhat-network/abi/Uniswap/Factory.json
deleted file mode 100644
index 3056fcc4fc..0000000000
--- a/packages/hardhat-core/test/internal/hardhat-network/abi/Uniswap/Factory.json
+++ /dev/null
@@ -1,130 +0,0 @@
-[
-  {
-    "name": "NewExchange",
-    "inputs": [
-      {
-        "type": "address",
-        "name": "token",
-        "indexed": true
-      },
-      {
-        "type": "address",
-        "name": "exchange",
-        "indexed": true
-      }
-    ],
-    "anonymous": false,
-    "type": "event"
-  },
-  {
-    "name": "initializeFactory",
-    "outputs": [],
-    "inputs": [
-      {
-        "type": "address",
-        "name": "template"
-      }
-    ],
-    "constant": false,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "createExchange",
-    "outputs": [
-      {
-        "type": "address",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "address",
-        "name": "token"
-      }
-    ],
-    "constant": false,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "getExchange",
-    "outputs": [
-      {
-        "type": "address",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "address",
-        "name": "token"
-      }
-    ],
-    "constant": true,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "getToken",
-    "outputs": [
-      {
-        "type": "address",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "address",
-        "name": "exchange"
-      }
-    ],
-    "constant": true,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "getTokenWithId",
-    "outputs": [
-      {
-        "type": "address",
-        "name": "out"
-      }
-    ],
-    "inputs": [
-      {
-        "type": "uint256",
-        "name": "token_id"
-      }
-    ],
-    "constant": true,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "exchangeTemplate",
-    "outputs": [
-      {
-        "type": "address",
-        "name": "out"
-      }
-    ],
-    "inputs": [],
-    "constant": true,
-    "payable": false,
-    "type": "function"
-  },
-  {
-    "name": "tokenCount",
-    "outputs": [
-      {
-        "type": "uint256",
-        "name": "out"
-      }
-    ],
-    "inputs": [],
-    "constant": true,
-    "payable": false,
-    "type": "function"
-  }
-]
diff --git a/packages/hardhat-core/test/internal/hardhat-network/provider/forked-provider.ts b/packages/hardhat-core/test/internal/hardhat-network/provider/forked-provider.ts
index b3d71931a6..d2378764c8 100644
--- a/packages/hardhat-core/test/internal/hardhat-network/provider/forked-provider.ts
+++ b/packages/hardhat-core/test/internal/hardhat-network/provider/forked-provider.ts
@@ -1,8 +1,5 @@
 import { assert } from "chai";
 import { BN, bufferToHex, toBuffer } from "ethereumjs-util";
-// eslint-disable-next-line import/no-extraneous-dependencies
-import { Contract, utils, Wallet } from "ethers";
-import fsExtra from "fs-extra";
 
 import {
   numberToRpcQuantity,
@@ -29,25 +26,15 @@ import {
 } from "../helpers/constants";
 import { EXAMPLE_CONTRACT } from "../helpers/contracts";
 import { setCWD } from "../helpers/cwd";
-import { EthersProviderWrapper } from "../helpers/ethers-provider-wrapper";
 import { hexStripZeros } from "../helpers/hexStripZeros";
 import { leftPad32 } from "../helpers/leftPad32";
 import {
-  DEFAULT_ACCOUNTS,
   DEFAULT_ACCOUNTS_ADDRESSES,
   FORKED_PROVIDERS,
 } from "../helpers/providers";
 import { retrieveForkBlockNumber } from "../helpers/retrieveForkBlockNumber";
 import { deployContract } from "../helpers/transactions";
 
-const ERC20Abi = fsExtra.readJsonSync(`${__dirname}/../abi/ERC20/ERC20.json`);
-const UniswapExchangeAbi = fsExtra.readJsonSync(
-  `${__dirname}/../abi/Uniswap/Exchange.json`
-);
-const UniswapFactoryAbi = fsExtra.readJsonSync(
-  `${__dirname}/../abi/Uniswap/Factory.json`
-);
-
 const WETH_DEPOSIT_SELECTOR = "0xd0e30db0";
 
 describe("Forked provider", function () {
@@ -501,72 +488,6 @@ describe("Forked provider", function () {
         });
       });
 
-      describe("Tests on remote contracts", () => {
-        describe("Uniswap", () => {
-          let wallet: Wallet;
-          let factory: Contract;
-          let daiExchange: Contract;
-          let dai: Contract;
-
-          beforeEach(async function () {
-            const ethersProvider = new EthersProviderWrapper(this.provider);
-            wallet = new Wallet(DEFAULT_ACCOUNTS[0].privateKey, ethersProvider);
-
-            factory = new Contract(
-              UNISWAP_FACTORY_ADDRESS.toString(),
-              UniswapFactoryAbi,
-              ethersProvider
-            );
-
-            const daiExchangeAddress = await factory.getExchange(
-              DAI_ADDRESS.toString()
-            );
-
-            daiExchange = new Contract(
-              daiExchangeAddress,
-              UniswapExchangeAbi,
-              wallet
-            );
-
-            dai = new Contract(
-              DAI_ADDRESS.toString(),
-              ERC20Abi,
-              ethersProvider
-            );
-          });
-
-          it("can buy DAI for Ether", async function () {
-            const ethBefore = await wallet.getBalance();
-            const daiBefore = await dai.balanceOf(wallet.address);
-            assert.equal(daiBefore.toNumber(), 0);
-
-            const expectedDai = await daiExchange.getEthToTokenInputPrice(
-              utils.parseEther("0.5")
-            );
-            assert.isTrue(expectedDai.gt(0));
-
-            await daiExchange.ethToTokenSwapInput(
-              1, // min amount of token retrieved
-              2525644800, // random timestamp in the future (year 2050)
-              {
-                gasLimit: 4000000,
-                value: utils.parseEther("0.5"),
-              }
-            );
-
-            const ethAfter = await wallet.getBalance();
-            const daiAfter = await dai.balanceOf(wallet.address);
-
-            const ethLost = parseFloat(
-              utils.formatUnits(ethBefore.sub(ethAfter), "ether")
-            );
-
-            assert.equal(daiAfter.toString(), expectedDai.toString());
-            assert.closeTo(ethLost, 0.5, 0.01);
-          });
-        });
-      });
-
       describe("blocks timestamps", () => {
         it("should use a timestamp relative to the forked block timestamp", async function () {
           if (ALCHEMY_URL === undefined) {