test(e2e): reset hardhat between tests (#6487)
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Zach Pomerantz
GitHub
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c8a8149127
commit
2a50d6a17e
@ -84,10 +84,9 @@ describe('Swap', () => {
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const DEADLINE_MINUTES = 1
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const TEN_MINUTES_MS = 1000 * 60 * DEADLINE_MINUTES * 10
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cy.visit('/swap', { ethereum: 'hardhat' })
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.hardhat()
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.hardhat({ automine: false })
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.then((hardhat) => {
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cy.then(() => hardhat.setAutomine(false))
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.then(() => hardhat.getBalance(hardhat.wallet.address, USDC_MAINNET))
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cy.then(() => hardhat.getBalance(hardhat.wallet.address, USDC_MAINNET))
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.then((balance) => Number(balance.toFixed(1)))
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.then((initialBalance) => {
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// Input swap info.
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@ -209,18 +208,16 @@ describe('Swap', () => {
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cy.get('#confirm-swap-or-send').click()
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cy.get(getTestSelector('dismiss-tx-confirmation')).click()
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cy.then(() => hardhat.provider.send('hardhat_mine', ['0x1', '0xc'])).then(() => {
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// ui check
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cy.get('#swap-currency-output [data-testid="balance-text"]').should(
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'have.text',
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`Balance: ${initialBalance + BALANCE_INCREMENT}`
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)
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// ui check
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cy.get('#swap-currency-output [data-testid="balance-text"]').should(
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'have.text',
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`Balance: ${initialBalance + BALANCE_INCREMENT}`
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)
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// chain state check
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cy.then(() => hardhat.getBalance(hardhat.wallet.address, USDC_MAINNET))
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.then((balance) => Number(balance.toFixed(1)))
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.should('eq', initialBalance + BALANCE_INCREMENT)
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})
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// chain state check
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cy.then(() => hardhat.getBalance(hardhat.wallet.address, USDC_MAINNET))
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.then((balance) => Number(balance.toFixed(1)))
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.should('eq', initialBalance + BALANCE_INCREMENT)
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})
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})
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})
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@ -417,68 +414,65 @@ describe('Swap', () => {
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it('should render an error for slippage failure', () => {
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cy.visit('/swap', { ethereum: 'hardhat' })
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.hardhat()
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.hardhat({ automine: false })
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.then((hardhat) => {
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cy.then(() => hardhat.setAutomine(false))
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.then(() => hardhat.provider.getBalance(hardhat.wallet.address))
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.then((initialBalance) => {
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// Gas estimation fails for this transaction (that would normally fail), so we stub it.
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const send = cy.stub(hardhat.provider, 'send')
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send.withArgs('eth_estimateGas').resolves(BigNumber.from(2_000_000))
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send.callThrough()
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cy.then(() => hardhat.provider.getBalance(hardhat.wallet.address)).then((initialBalance) => {
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// Gas estimation fails for this transaction (that would normally fail), so we stub it.
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const send = cy.stub(hardhat.provider, 'send')
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send.withArgs('eth_estimateGas').resolves(BigNumber.from(2_000_000))
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send.callThrough()
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// Set slippage to a very low value.
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cy.get(getTestSelector('open-settings-dialog-button')).click()
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cy.get(getTestSelector('slippage-input')).clear().type('0.01')
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cy.get('body').click('topRight')
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cy.get(getTestSelector('slippage-input')).should('not.exist')
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// Set slippage to a very low value.
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cy.get(getTestSelector('open-settings-dialog-button')).click()
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cy.get(getTestSelector('slippage-input')).clear().type('0.01')
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cy.get('body').click('topRight')
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cy.get(getTestSelector('slippage-input')).should('not.exist')
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// Open the currency select modal.
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cy.get('#swap-currency-output .open-currency-select-button').click()
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// Open the currency select modal.
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cy.get('#swap-currency-output .open-currency-select-button').click()
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// Wait for the currency list to load
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cy.contains('1inch').should('exist')
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// Wait for the currency list to load
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cy.contains('1inch').should('exist')
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// Select UNI as output token
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cy.get(getTestSelector('token-search-input')).clear().type('Uniswap')
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cy.get(getTestSelector('currency-list-wrapper'))
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.contains(/^Uniswap$/)
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.first()
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.should('exist')
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.click()
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// Select UNI as output token
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cy.get(getTestSelector('token-search-input')).clear().type('Uniswap')
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cy.get(getTestSelector('currency-list-wrapper'))
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.contains(/^Uniswap$/)
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.first()
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.should('exist')
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.click()
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// Swap 2 times.
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const AMOUNT_TO_SWAP = 400
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const NUMBER_OF_SWAPS = 2
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const INDIVIDUAL_SWAP_INPUT = AMOUNT_TO_SWAP / NUMBER_OF_SWAPS
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cy.get('#swap-currency-input .token-amount-input').clear().type(INDIVIDUAL_SWAP_INPUT.toString())
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cy.get('#swap-currency-output .token-amount-input').should('not.equal', '')
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cy.get('#swap-button').click()
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cy.get('#confirm-swap-or-send').click()
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cy.get(getTestSelector('dismiss-tx-confirmation')).click()
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cy.get('#swap-currency-input .token-amount-input').clear().type(INDIVIDUAL_SWAP_INPUT.toString())
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cy.get('#swap-currency-output .token-amount-input').should('not.equal', '')
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cy.get('#swap-button').click()
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cy.get('#confirm-swap-or-send').click()
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cy.get(getTestSelector('dismiss-tx-confirmation')).click()
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// Swap 2 times.
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const AMOUNT_TO_SWAP = 400
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const NUMBER_OF_SWAPS = 2
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const INDIVIDUAL_SWAP_INPUT = AMOUNT_TO_SWAP / NUMBER_OF_SWAPS
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cy.get('#swap-currency-input .token-amount-input').clear().type(INDIVIDUAL_SWAP_INPUT.toString())
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cy.get('#swap-currency-output .token-amount-input').should('not.equal', '')
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cy.get('#swap-button').click()
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cy.get('#confirm-swap-or-send').click()
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cy.get(getTestSelector('dismiss-tx-confirmation')).click()
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cy.get('#swap-currency-input .token-amount-input').clear().type(INDIVIDUAL_SWAP_INPUT.toString())
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cy.get('#swap-currency-output .token-amount-input').should('not.equal', '')
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cy.get('#swap-button').click()
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cy.get('#confirm-swap-or-send').click()
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cy.get(getTestSelector('dismiss-tx-confirmation')).click()
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// The pending transaction indicator should be visible.
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cy.contains('Pending').should('exist')
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// The pending transaction indicator should be visible.
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cy.contains('Pending').should('exist')
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cy.then(() => hardhat.mine()).then(() => {
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// The pending transaction indicator should not be visible.
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cy.contains('Pending').should('not.exist')
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cy.then(() => hardhat.mine()).then(() => {
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// The pending transaction indicator should not be visible.
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cy.contains('Pending').should('not.exist')
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// Check for a failed transaction notification.
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cy.contains('Swap failed').should('exist')
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// Check for a failed transaction notification.
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cy.contains('Swap failed').should('exist')
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// Assert that at least one of the swaps failed due to slippage.
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cy.then(() => hardhat.provider.getBalance(hardhat.wallet.address)).then((finalBalance) => {
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expect(finalBalance.gt(initialBalance.sub(parseEther(AMOUNT_TO_SWAP.toString())))).to.be.true
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})
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// Assert that at least one of the swaps failed due to slippage.
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cy.then(() => hardhat.provider.getBalance(hardhat.wallet.address)).then((finalBalance) => {
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expect(finalBalance.gt(initialBalance.sub(parseEther(AMOUNT_TO_SWAP.toString())))).to.be.true
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})
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})
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.then(() => hardhat.setAutomine(true))
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})
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})
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})
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})
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@ -89,11 +89,12 @@ Cypress.Commands.overwrite(
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)
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beforeEach(() => {
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// Many API calls enforce that requests come from our app, so we must mock Origin and Referer.
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cy.intercept('*', (req) => {
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req.headers['referer'] = 'https://app.uniswap.org'
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req.headers['origin'] = 'https://app.uniswap.org'
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})
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cy
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// Many API calls enforce that requests come from our app, so we must mock Origin and Referer.
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.intercept('*', (req) => {
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req.headers['referer'] = 'https://app.uniswap.org'
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req.headers['origin'] = 'https://app.uniswap.org'
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})
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// Infura uses a test endpoint, which allow-lists http://localhost:3000 instead.
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.intercept(/infura.io/, (req) => {
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req.headers['referer'] = 'http://localhost:3000'
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@ -114,6 +115,10 @@ beforeEach(() => {
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})
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)
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})
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// Reset hardhat between tests to ensure isolation.
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// This resets the fork, as well as options like automine.
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.hardhat()
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.then((hardhat) => hardhat.reset())
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})
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Cypress.on('uncaught:exception', () => {
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@ -22,8 +22,8 @@ module.exports = {
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count: 1,
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},
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mining: {
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auto: true,
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interval: 0,
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auto: true, // automine to make tests easier to write.
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interval: 0, // do not interval mine so that tests remain deterministic
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},
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},
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},
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@ -102,7 +102,7 @@
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"@vanilla-extract/webpack-plugin": "^2.1.11",
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"babel-plugin-istanbul": "^6.1.1",
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"cypress": "10.3.1",
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"cypress-hardhat": "^2.2.0",
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"cypress-hardhat": "^2.3.0",
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"env-cmd": "^10.1.0",
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"eslint": "^7.11.0",
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"eslint-plugin-import": "^2.27",
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@ -9046,10 +9046,10 @@ cyclist@^1.0.1:
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resolved "https://registry.yarnpkg.com/cyclist/-/cyclist-1.0.1.tgz#596e9698fd0c80e12038c2b82d6eb1b35b6224d9"
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integrity sha1-WW6WmP0MgOEgOMK4LW6xs1tiJNk=
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cypress-hardhat@^2.2.0:
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version "2.2.0"
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resolved "https://registry.yarnpkg.com/cypress-hardhat/-/cypress-hardhat-2.2.0.tgz#4e1c0f16f0c915dda54ddeccbf5dea19f80eed2f"
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integrity sha512-Jtzd49vvyWSshR43w18WJ4b/40EhSItTTl82QYBNqiSPPrC/yj0derJHZyqMqq2LZvrsfmiY92fIBDgvxUCxZQ==
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cypress-hardhat@^2.3.0:
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version "2.3.0"
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resolved "https://registry.yarnpkg.com/cypress-hardhat/-/cypress-hardhat-2.3.0.tgz#646b35d57490d060e3fd4441e76e4d91b4ff4ec7"
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integrity sha512-Sj437lFrUZ9UJGXS5a+DLQPBoyaWUxJafEiydNqKKpViKswBiylHD3ZJu2mrtQ/fhp7lgOPpMP72IQX4Ncwzdg==
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dependencies:
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"@uniswap/permit2-sdk" "^1.2.0"
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"@uniswap/sdk-core" "^3.0.1"
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