add gas reporting

contracts/AccountLocks.sol

@@ -10,7 +10,7 @@ pragma solidity ^0.8.8;
 contract AccountLocks {
   type LockId is bytes32;
 
-  uint256 public constant MAX_LOCKS_PER_ACCOUNT = 128;
+  uint256 public constant MAX_LOCKS_PER_ACCOUNT = 256;
 
   mapping(LockId => Lock) private locks;
   mapping(address => Account) private accounts;

hardhat.config.js

@@ -1,6 +1,7 @@
 require("@nomiclabs/hardhat-waffle")
 require("hardhat-deploy")
 require("hardhat-deploy-ethers")
+require("hardhat-gas-reporter")
 
 module.exports = {
   solidity: {
@@ -20,4 +21,8 @@ module.exports = {
       tags: ["local"],
     },
   },
+  gasReporter: {
+    enabled: process.env.REPORT_GAS ? true : false,
+    showTimeSpent: true,
+  },
 }

package.json

@@ -17,6 +17,7 @@
     "hardhat": "^2.9.1",
     "hardhat-deploy": "^0.9.29",
     "hardhat-deploy-ethers": "^0.3.0-beta.13",
+    "hardhat-gas-reporter": "^1.0.9",
     "prettier": "^2.5.1",
     "prettier-plugin-solidity": "^1.0.0-beta.19",
     "solhint": "^3.3.7"

test/Marketplace.test.js

@@ -107,6 +107,22 @@ describe("Marketplace", function () {
         "request already exists"
       )
     })
+
+    it("rejects request with more than 256 slots", async function () {
+      await token.approve(marketplace.address, price(request) * 2)
+      request.ask.slots = 257
+      await expect(marketplace.requestStorage(request)).to.be.revertedWith(
+        "Max slots exceeded"
+      )
+    })
+
+    it("rejects request with more than 256 max slot loss", async function () {
+      await token.approve(marketplace.address, price(request) * 2)
+      request.ask.maxSlotLoss = 257
+      await expect(marketplace.requestStorage(request)).to.be.revertedWith(
+        "Max slot loss exceeded"
+      )
+    })
   })
 
   describe("filling a slot", function () {
@@ -817,4 +833,30 @@ describe("Marketplace", function () {
       expect(await marketplace.mySlots()).to.not.contain(slotId(slot))
     })
   })
+
+  describe.only("gas reporting limits", function () {
+    before(function () {
+      if (!process.env.REPORT_GAS) {
+        this.skip()
+      }
+    })
+    beforeEach(async function () {
+      switchAccount(host)
+      await token.approve(marketplace.address, collateral)
+      await marketplace.deposit(collateral)
+    })
+    it("tests maximum slots with a minimum slot loss", async function () {
+      this.timeout(100000)
+
+      switchAccount(client)
+      request.ask.slots = 256
+      request.ask.maxSlotLoss = 1
+      slot.request = requestId(request)
+      await token.approve(marketplace.address, price(request))
+      await marketplace.requestStorage(request)
+      switchAccount(host)
+      await waitUntilStarted(marketplace, request, proof)
+      await waitUntilFailed(marketplace, request, slot)
+    })
+  })
 })