diff --git a/integration-tests/contracts/ERC20.sol b/integration-tests/contracts/ERC20.sol
index f404b7eb63269..c67efd462b79a 100644
--- a/integration-tests/contracts/ERC20.sol
+++ b/integration-tests/contracts/ERC20.sol
@@ -42,7 +42,7 @@ contract ERC20 {
 
     function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
         uint256 allowance = allowed[_from][msg.sender];
-        require(balances[_from] >= _value && allowance >= _value);
+        require(balances[_from] >= _value && allowance >= _value, "bad allowance");
         balances[_to] += _value;
         balances[_from] -= _value;
         if (allowance < MAX_UINT256) {
@@ -65,4 +65,8 @@ contract ERC20 {
     function allowance(address _owner, address _spender) public view returns (uint256 remaining) {
         return allowed[_owner][_spender];
     }
+
+    function destroy() public {
+        selfdestruct(payable(msg.sender));
+    }
 }
diff --git a/integration-tests/hardhat.config.ts b/integration-tests/hardhat.config.ts
index b92f0a355769f..49445a44c0a0d 100644
--- a/integration-tests/hardhat.config.ts
+++ b/integration-tests/hardhat.config.ts
@@ -18,18 +18,26 @@ const config: HardhatUserConfig = {
     timeout: isLiveNetwork() ? 300_000 : 75_000,
   },
   solidity: {
-    version: '0.8.9',
-    settings: {
-      optimizer: { enabled: true, runs: 200 },
-      metadata: {
-        bytecodeHash: 'none',
+    compilers: [
+      {
+        version: '0.7.6',
+        settings: {},
       },
-      outputSelection: {
-        '*': {
-          '*': ['storageLayout'],
+      {
+        version: '0.8.9',
+        settings: {
+          optimizer: { enabled: true, runs: 200 },
+          metadata: {
+            bytecodeHash: 'none',
+          },
+          outputSelection: {
+            '*': {
+              '*': ['storageLayout'],
+            },
+          },
         },
       },
-    },
+    ],
   },
   gasReporter: {
     enabled: enableGasReport,
diff --git a/integration-tests/package.json b/integration-tests/package.json
index 789f982105bc9..ebe66be233ee3 100644
--- a/integration-tests/package.json
+++ b/integration-tests/package.json
@@ -31,6 +31,9 @@
     "@types/shelljs": "^0.8.8",
     "@typescript-eslint/eslint-plugin": "^4.26.0",
     "@typescript-eslint/parser": "^4.26.0",
+    "@uniswap/v3-core": "1.0.0",
+    "@uniswap/v3-periphery": "^1.0.1",
+    "@uniswap/v3-sdk": "^3.6.2",
     "babel-eslint": "^10.1.0",
     "chai": "^4.3.4",
     "chai-as-promised": "^7.1.1",
@@ -50,10 +53,11 @@
     "ethers": "^5.4.5",
     "hardhat": "^2.3.0",
     "hardhat-gas-reporter": "^1.0.4",
+    "lint-staged": "11.0.0",
     "mocha": "^8.4.0",
     "rimraf": "^3.0.2",
     "shelljs": "^0.8.4",
     "typescript": "^4.3.5",
-    "lint-staged": "11.0.0"
+    "uniswap-v3-deploy-plugin": "^0.1.0"
   }
 }
diff --git a/integration-tests/sync-tests/1-sync-verifier.spec.ts b/integration-tests/sync-tests/1-sync-verifier.spec.ts
index 0abe8d69f9c5d..4712132a23b77 100644
--- a/integration-tests/sync-tests/1-sync-verifier.spec.ts
+++ b/integration-tests/sync-tests/1-sync-verifier.spec.ts
@@ -1,4 +1,4 @@
-import chai, { expect } from 'chai'
+import { expect } from 'chai'
 import { Wallet, BigNumber, providers } from 'ethers'
 import { injectL2Context } from '@eth-optimism/core-utils'
 
diff --git a/integration-tests/sync-tests/2-sync-replica.spec.ts b/integration-tests/sync-tests/2-sync-replica.spec.ts
index ae8a108fbd03d..0658c150cc86d 100644
--- a/integration-tests/sync-tests/2-sync-replica.spec.ts
+++ b/integration-tests/sync-tests/2-sync-replica.spec.ts
@@ -1,4 +1,4 @@
-import chai, { expect } from 'chai'
+import { expect } from 'chai'
 import { Wallet, Contract, ContractFactory, providers } from 'ethers'
 import { ethers } from 'hardhat'
 import { injectL2Context } from '@eth-optimism/core-utils'
diff --git a/integration-tests/test/basic-l1-l2-communication.spec.ts b/integration-tests/test/basic-l1-l2-communication.spec.ts
index 2b62a9c9a727c..2f94ff62eb317 100644
--- a/integration-tests/test/basic-l1-l2-communication.spec.ts
+++ b/integration-tests/test/basic-l1-l2-communication.spec.ts
@@ -2,14 +2,13 @@ import { expect } from 'chai'
 
 /* Imports: External */
 import { Contract, ContractFactory } from 'ethers'
-import { applyL1ToL2Alias } from '@eth-optimism/core-utils'
+import { applyL1ToL2Alias, awaitCondition } from '@eth-optimism/core-utils'
 
 /* Imports: Internal */
 import simpleStorageJson from '../artifacts/contracts/SimpleStorage.sol/SimpleStorage.json'
 import l2ReverterJson from '../artifacts/contracts/Reverter.sol/Reverter.json'
 import { Direction } from './shared/watcher-utils'
 import { OptimismEnv } from './shared/env'
-import { awaitCondition } from '@eth-optimism/core-utils'
 
 describe('Basic L1<>L2 Communication', async () => {
   let Factory__L1SimpleStorage: ContractFactory
diff --git a/integration-tests/test/contracts.spec.ts b/integration-tests/test/contracts.spec.ts
new file mode 100644
index 0000000000000..f555be27a85bc
--- /dev/null
+++ b/integration-tests/test/contracts.spec.ts
@@ -0,0 +1,205 @@
+import { BigNumber, Contract, ContractFactory, utils, Wallet } from 'ethers'
+import { ethers } from 'hardhat'
+import { solidity } from 'ethereum-waffle'
+import chai, { expect } from 'chai'
+import { UniswapV3Deployer } from 'uniswap-v3-deploy-plugin/dist/deployer/UniswapV3Deployer'
+
+import { OptimismEnv } from './shared/env'
+import { FeeAmount, TICK_SPACINGS } from '@uniswap/v3-sdk'
+
+chai.use(solidity)
+
+// Below methods taken from the Uniswap test suite, see
+// https://github.com/Uniswap/v3-periphery/blob/main/test/shared/ticks.ts
+const getMinTick = (tickSpacing: number) =>
+  Math.ceil(-887272 / tickSpacing) * tickSpacing
+const getMaxTick = (tickSpacing: number) =>
+  Math.floor(887272 / tickSpacing) * tickSpacing
+
+describe('Contract interactions', () => {
+  let env: OptimismEnv
+
+  let Factory__ERC20: ContractFactory
+
+  let otherWallet: Wallet
+
+  before(async () => {
+    env = await OptimismEnv.new()
+
+    Factory__ERC20 = await ethers.getContractFactory('ERC20', env.l2Wallet)
+
+    otherWallet = Wallet.createRandom().connect(env.l2Wallet.provider)
+    await env.l2Wallet.sendTransaction({
+      to: otherWallet.address,
+      value: utils.parseEther('0.1'),
+    })
+  })
+
+  describe('ERC20s', () => {
+    let contract: Contract
+
+    before(async () => {
+      Factory__ERC20 = await ethers.getContractFactory('ERC20', env.l2Wallet)
+    })
+
+    it('should successfully deploy the contract', async () => {
+      contract = await Factory__ERC20.deploy(100000000, 'OVM Test', 8, 'OVM')
+      await contract.deployed()
+    })
+
+    it('should support approvals', async () => {
+      const spender = '0x' + '22'.repeat(20)
+      const tx = await contract.approve(spender, 1000)
+      await tx.wait()
+      let allowance = await contract.allowance(env.l2Wallet.address, spender)
+      expect(allowance).to.deep.equal(BigNumber.from(1000))
+      allowance = await contract.allowance(otherWallet.address, spender)
+      expect(allowance).to.deep.equal(BigNumber.from(0))
+
+      const logs = await contract.queryFilter(
+        contract.filters.Approval(env.l2Wallet.address),
+        1,
+        'latest'
+      )
+      expect(logs[0].args._owner).to.equal(env.l2Wallet.address)
+      expect(logs[0].args._spender).to.equal(spender)
+      expect(logs[0].args._value).to.deep.equal(BigNumber.from(1000))
+    })
+
+    it('should support transferring balances', async () => {
+      const tx = await contract.transfer(otherWallet.address, 1000)
+      await tx.wait()
+      const balFrom = await contract.balanceOf(env.l2Wallet.address)
+      const balTo = await contract.balanceOf(otherWallet.address)
+      expect(balFrom).to.deep.equal(BigNumber.from(100000000).sub(1000))
+      expect(balTo).to.deep.equal(BigNumber.from(1000))
+
+      const logs = await contract.queryFilter(
+        contract.filters.Transfer(env.l2Wallet.address),
+        1,
+        'latest'
+      )
+      expect(logs[0].args._from).to.equal(env.l2Wallet.address)
+      expect(logs[0].args._to).to.equal(otherWallet.address)
+      expect(logs[0].args._value).to.deep.equal(BigNumber.from(1000))
+    })
+
+    it('should support being self destructed', async () => {
+      const tx = await contract.destroy()
+      await tx.wait()
+      const code = await env.l2Wallet.provider.getCode(contract.address)
+      expect(code).to.equal('0x')
+    })
+  })
+
+  describe('uniswap', () => {
+    let contracts: { [name: string]: Contract }
+    let tokens: Contract[]
+
+    before(async () => {
+      const tokenA = await Factory__ERC20.deploy(100000000, 'OVM1', 8, 'OVM1')
+      await tokenA.deployed()
+      const tokenB = await Factory__ERC20.deploy(100000000, 'OVM2', 8, 'OVM2')
+      await tokenB.deployed()
+      tokens = [tokenA, tokenB]
+      tokens.sort((a, b) => {
+        if (a.address > b.address) {
+          return 1
+        }
+
+        if (a.address < b.address) {
+          return -1
+        }
+
+        return 0
+      })
+
+      const tx = await tokens[0].transfer(otherWallet.address, 100000)
+      await tx.wait()
+    })
+
+    it('should deploy the Uniswap ecosystem', async () => {
+      contracts = await UniswapV3Deployer.deploy(env.l2Wallet)
+    })
+
+    it('should deploy and initialize a liquidity pool', async () => {
+      const tx =
+        await contracts.positionManager.createAndInitializePoolIfNecessary(
+          tokens[0].address,
+          tokens[1].address,
+          FeeAmount.MEDIUM,
+          // initial ratio of 1/1
+          BigNumber.from('79228162514264337593543950336')
+        )
+      await tx.wait()
+    })
+
+    it('should approve the contracts', async () => {
+      for (const wallet of [env.l2Wallet, otherWallet]) {
+        for (const token of tokens) {
+          let tx = await token
+            .connect(wallet)
+            .approve(contracts.positionManager.address, 100000000)
+          await tx.wait()
+          tx = await token
+            .connect(wallet)
+            .approve(contracts.router.address, 100000000)
+          await tx.wait()
+        }
+      }
+    })
+
+    it('should mint new positions', async () => {
+      const tx = await contracts.positionManager.mint(
+        {
+          token0: tokens[0].address,
+          token1: tokens[1].address,
+          tickLower: getMinTick(TICK_SPACINGS[FeeAmount.MEDIUM]),
+          tickUpper: getMaxTick(TICK_SPACINGS[FeeAmount.MEDIUM]),
+          fee: FeeAmount.MEDIUM,
+          recipient: env.l2Wallet.address,
+          amount0Desired: 15,
+          amount1Desired: 15,
+          amount0Min: 0,
+          amount1Min: 0,
+          deadline: Date.now() * 2,
+        },
+        {
+          gasLimit: 10000000,
+        }
+      )
+      await tx.wait()
+      expect(
+        await contracts.positionManager.balanceOf(env.l2Wallet.address)
+      ).to.eq(1)
+      expect(
+        await contracts.positionManager.tokenOfOwnerByIndex(
+          env.l2Wallet.address,
+          0
+        )
+      ).to.eq(1)
+    })
+
+    it('should swap', async () => {
+      const tx = await contracts.router.connect(otherWallet).exactInputSingle(
+        {
+          tokenIn: tokens[0].address,
+          tokenOut: tokens[1].address,
+          fee: FeeAmount.MEDIUM,
+          recipient: otherWallet.address,
+          deadline: Date.now() * 2,
+          amountIn: 10,
+          amountOutMinimum: 0,
+          sqrtPriceLimitX96: 0,
+        },
+        {
+          gasLimit: 10000000,
+        }
+      )
+      await tx.wait()
+      expect(await tokens[1].balanceOf(otherWallet.address)).to.deep.equal(
+        BigNumber.from('5')
+      )
+    })
+  })
+})
diff --git a/integration-tests/test/shared/utils.ts b/integration-tests/test/shared/utils.ts
index a5cb247478f6b..a2af2af00728d 100644
--- a/integration-tests/test/shared/utils.ts
+++ b/integration-tests/test/shared/utils.ts
@@ -174,22 +174,6 @@ export const waitForL2Geth = async (
   return injectL2Context(provider)
 }
 
-export const awaitCondition = async (
-  cond: () => Promise<boolean>,
-  rate = 1000,
-  attempts = 10
-) => {
-  for (let i = 0; i < attempts; i++) {
-    const ok = await cond()
-    if (ok) {
-      return
-    }
-
-    await sleep(rate)
-  }
-  throw new Error('Timed out.')
-}
-
 export const gasPriceForL2 = async () => {
   if (isLiveNetwork()) {
     return Promise.resolve(BigNumber.from(10000))
diff --git a/yarn.lock b/yarn.lock
index dd01d794d5b0f..39af55bc4addc 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3192,6 +3192,19 @@
     tiny-invariant "^1.1.0"
     tiny-warning "^1.0.3"
 
+"@uniswap/v3-sdk@^3.6.2":
+  version "3.6.2"
+  resolved "https://registry.yarnpkg.com/@uniswap/v3-sdk/-/v3-sdk-3.6.2.tgz#45fa659f7642e8807cb36939e4426355c7a5943c"
+  integrity sha512-RHJaFfO6+ugI0+v0xhGXuVadmJ9bTbAz/RnuS/xRpXrRIsLNRVC42bYZ3Ci0JPWhkaNygCcc3LJ36Bs6GganSg==
+  dependencies:
+    "@ethersproject/abi" "^5.0.12"
+    "@ethersproject/solidity" "^5.0.9"
+    "@uniswap/sdk-core" "^3.0.1"
+    "@uniswap/v3-periphery" "^1.1.1"
+    "@uniswap/v3-staker" "1.0.0"
+    tiny-invariant "^1.1.0"
+    tiny-warning "^1.0.3"
+
 "@uniswap/v3-staker@1.0.0":
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/@uniswap/v3-staker/-/v3-staker-1.0.0.tgz#9a6915ec980852479dfc903f50baf822ff8fa66e"
@@ -5094,6 +5107,16 @@ cli-table3@^0.5.0:
   optionalDependencies:
     colors "^1.1.2"
 
+cli-table3@^0.6.0:
+  version "0.6.0"
+  resolved "https://registry.yarnpkg.com/cli-table3/-/cli-table3-0.6.0.tgz#b7b1bc65ca8e7b5cef9124e13dc2b21e2ce4faee"
+  integrity sha512-gnB85c3MGC7Nm9I/FkiasNBOKjOiO1RNuXXarQms37q4QMpWdlbBgD/VnOStA2faG1dpXMv31RFApjX1/QdgWQ==
+  dependencies:
+    object-assign "^4.1.0"
+    string-width "^4.2.0"
+  optionalDependencies:
+    colors "^1.1.2"
+
 cli-table@^0.3.1:
   version "0.3.6"
   resolved "https://registry.yarnpkg.com/cli-table/-/cli-table-0.3.6.tgz#e9d6aa859c7fe636981fd3787378c2a20bce92fc"
@@ -15258,6 +15281,15 @@ unique-slug@^2.0.0:
   dependencies:
     imurmurhash "^0.1.4"
 
+uniswap-v3-deploy-plugin@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/uniswap-v3-deploy-plugin/-/uniswap-v3-deploy-plugin-0.1.0.tgz#dd1798106373c16108aa2b5a0ec3b176c5c51d43"
+  integrity sha512-goowszquDWierss0oCB91MoQY2W1ue1fixA7XrxPQbVU0pt7ZGUv2KvxqYtcjpey9AcJrveGJoGYvpSLxmkzaw==
+  dependencies:
+    "@uniswap/v3-core" "1.0.0"
+    "@uniswap/v3-periphery" "^1.0.1"
+    cli-table3 "^0.6.0"
+
 universal-user-agent@^6.0.0:
   version "6.0.0"
   resolved "https://registry.yarnpkg.com/universal-user-agent/-/universal-user-agent-6.0.0.tgz#3381f8503b251c0d9cd21bc1de939ec9df5480ee"