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Commit 2a50d6a1 authored by Zach Pomerantz's avatar Zach Pomerantz Committed by GitHub
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test(e2e): reset hardhat between tests (#6487)

parent c8a81491
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Showing with 85 additions and 86 deletions
cypress/e2e/swap.test.ts
View file @ 2a50d6a1
......@@ -84,10 +84,9 @@ describe('Swap', () => {
const DEADLINE_MINUTES = 1
const TEN_MINUTES_MS = 1000 * 60 * DEADLINE_MINUTES * 10
cy.visit('/swap', { ethereum: 'hardhat' })
.hardhat()
.hardhat({ automine: false })
.then((hardhat) => {
cy.then(() => hardhat.setAutomine(false))
.then(() => hardhat.getBalance(hardhat.wallet.address, USDC_MAINNET))
cy.then(() => hardhat.getBalance(hardhat.wallet.address, USDC_MAINNET))
.then((balance) => Number(balance.toFixed(1)))
.then((initialBalance) => {
// Input swap info.
......@@ -209,18 +208,16 @@ describe('Swap', () => {
cy.get('#confirm-swap-or-send').click()
cy.get(getTestSelector('dismiss-tx-confirmation')).click()
cy.then(() => hardhat.provider.send('hardhat_mine', ['0x1', '0xc'])).then(() => {
// ui check
cy.get('#swap-currency-output [data-testid="balance-text"]').should(
'have.text',
`Balance: ${initialBalance + BALANCE_INCREMENT}`
)
// chain state check
cy.then(() => hardhat.getBalance(hardhat.wallet.address, USDC_MAINNET))
.then((balance) => Number(balance.toFixed(1)))
.should('eq', initialBalance + BALANCE_INCREMENT)
})
// ui check
cy.get('#swap-currency-output [data-testid="balance-text"]').should(
'have.text',
`Balance: ${initialBalance + BALANCE_INCREMENT}`
)
// chain state check
cy.then(() => hardhat.getBalance(hardhat.wallet.address, USDC_MAINNET))
.then((balance) => Number(balance.toFixed(1)))
.should('eq', initialBalance + BALANCE_INCREMENT)
})
})
})
......@@ -417,68 +414,65 @@ describe('Swap', () => {
it('should render an error for slippage failure', () => {
cy.visit('/swap', { ethereum: 'hardhat' })
.hardhat()
.hardhat({ automine: false })
.then((hardhat) => {
cy.then(() => hardhat.setAutomine(false))
.then(() => hardhat.provider.getBalance(hardhat.wallet.address))
.then((initialBalance) => {
// Gas estimation fails for this transaction (that would normally fail), so we stub it.
const send = cy.stub(hardhat.provider, 'send')
send.withArgs('eth_estimateGas').resolves(BigNumber.from(2_000_000))
send.callThrough()
// Set slippage to a very low value.
cy.get(getTestSelector('open-settings-dialog-button')).click()
cy.get(getTestSelector('slippage-input')).clear().type('0.01')
cy.get('body').click('topRight')
cy.get(getTestSelector('slippage-input')).should('not.exist')
// Open the currency select modal.
cy.get('#swap-currency-output .open-currency-select-button').click()
// Wait for the currency list to load
cy.contains('1inch').should('exist')
// Select UNI as output token
cy.get(getTestSelector('token-search-input')).clear().type('Uniswap')
cy.get(getTestSelector('currency-list-wrapper'))
.contains(/^Uniswap$/)
.first()
.should('exist')
.click()
// Swap 2 times.
const AMOUNT_TO_SWAP = 400
const NUMBER_OF_SWAPS = 2
const INDIVIDUAL_SWAP_INPUT = AMOUNT_TO_SWAP / NUMBER_OF_SWAPS
cy.get('#swap-currency-input .token-amount-input').clear().type(INDIVIDUAL_SWAP_INPUT.toString())
cy.get('#swap-currency-output .token-amount-input').should('not.equal', '')
cy.get('#swap-button').click()
cy.get('#confirm-swap-or-send').click()
cy.get(getTestSelector('dismiss-tx-confirmation')).click()
cy.get('#swap-currency-input .token-amount-input').clear().type(INDIVIDUAL_SWAP_INPUT.toString())
cy.get('#swap-currency-output .token-amount-input').should('not.equal', '')
cy.get('#swap-button').click()
cy.get('#confirm-swap-or-send').click()
cy.get(getTestSelector('dismiss-tx-confirmation')).click()
// The pending transaction indicator should be visible.
cy.contains('Pending').should('exist')
cy.then(() => hardhat.mine()).then(() => {
// The pending transaction indicator should not be visible.
cy.contains('Pending').should('not.exist')
// Check for a failed transaction notification.
cy.contains('Swap failed').should('exist')
// Assert that at least one of the swaps failed due to slippage.
cy.then(() => hardhat.provider.getBalance(hardhat.wallet.address)).then((finalBalance) => {
expect(finalBalance.gt(initialBalance.sub(parseEther(AMOUNT_TO_SWAP.toString())))).to.be.true
})
cy.then(() => hardhat.provider.getBalance(hardhat.wallet.address)).then((initialBalance) => {
// Gas estimation fails for this transaction (that would normally fail), so we stub it.
const send = cy.stub(hardhat.provider, 'send')
send.withArgs('eth_estimateGas').resolves(BigNumber.from(2_000_000))
send.callThrough()
// Set slippage to a very low value.
cy.get(getTestSelector('open-settings-dialog-button')).click()
cy.get(getTestSelector('slippage-input')).clear().type('0.01')
cy.get('body').click('topRight')
cy.get(getTestSelector('slippage-input')).should('not.exist')
// Open the currency select modal.
cy.get('#swap-currency-output .open-currency-select-button').click()
// Wait for the currency list to load
cy.contains('1inch').should('exist')
// Select UNI as output token
cy.get(getTestSelector('token-search-input')).clear().type('Uniswap')
cy.get(getTestSelector('currency-list-wrapper'))
.contains(/^Uniswap$/)
.first()
.should('exist')
.click()
// Swap 2 times.
const AMOUNT_TO_SWAP = 400
const NUMBER_OF_SWAPS = 2
const INDIVIDUAL_SWAP_INPUT = AMOUNT_TO_SWAP / NUMBER_OF_SWAPS
cy.get('#swap-currency-input .token-amount-input').clear().type(INDIVIDUAL_SWAP_INPUT.toString())
cy.get('#swap-currency-output .token-amount-input').should('not.equal', '')
cy.get('#swap-button').click()
cy.get('#confirm-swap-or-send').click()
cy.get(getTestSelector('dismiss-tx-confirmation')).click()
cy.get('#swap-currency-input .token-amount-input').clear().type(INDIVIDUAL_SWAP_INPUT.toString())
cy.get('#swap-currency-output .token-amount-input').should('not.equal', '')
cy.get('#swap-button').click()
cy.get('#confirm-swap-or-send').click()
cy.get(getTestSelector('dismiss-tx-confirmation')).click()
// The pending transaction indicator should be visible.
cy.contains('Pending').should('exist')
cy.then(() => hardhat.mine()).then(() => {
// The pending transaction indicator should not be visible.
cy.contains('Pending').should('not.exist')
// Check for a failed transaction notification.
cy.contains('Swap failed').should('exist')
// Assert that at least one of the swaps failed due to slippage.
cy.then(() => hardhat.provider.getBalance(hardhat.wallet.address)).then((finalBalance) => {
expect(finalBalance.gt(initialBalance.sub(parseEther(AMOUNT_TO_SWAP.toString())))).to.be.true
})
})
.then(() => hardhat.setAutomine(true))
})
})
})
})
cypress/support/e2e.ts
View file @ 2a50d6a1
......@@ -89,11 +89,12 @@ Cypress.Commands.overwrite(
)
beforeEach(() => {
// Many API calls enforce that requests come from our app, so we must mock Origin and Referer.
cy.intercept('*', (req) => {
req.headers['referer'] = 'https://app.uniswap.org'
req.headers['origin'] = 'https://app.uniswap.org'
})
cy
// Many API calls enforce that requests come from our app, so we must mock Origin and Referer.
.intercept('*', (req) => {
req.headers['referer'] = 'https://app.uniswap.org'
req.headers['origin'] = 'https://app.uniswap.org'
})
// Infura uses a test endpoint, which allow-lists http://localhost:3000 instead.
.intercept(/infura.io/, (req) => {
req.headers['referer'] = 'http://localhost:3000'
......@@ -114,6 +115,10 @@ beforeEach(() => {
})
)
})
// Reset hardhat between tests to ensure isolation.
// This resets the fork, as well as options like automine.
.hardhat()
.then((hardhat) => hardhat.reset())
})
Cypress.on('uncaught:exception', () => {
......
hardhat.config.js
View file @ 2a50d6a1
......@@ -22,8 +22,8 @@ module.exports = {
count: 1,
},
mining: {
auto: true,
interval: 0,
auto: true, // automine to make tests easier to write.
interval: 0, // do not interval mine so that tests remain deterministic
},
},
},
......
yarn.lock
View file @ 2a50d6a1
......@@ -9046,10 +9046,10 @@ cyclist@^1.0.1:
resolved "https://registry.yarnpkg.com/cyclist/-/cyclist-1.0.1.tgz#596e9698fd0c80e12038c2b82d6eb1b35b6224d9"
integrity sha1-WW6WmP0MgOEgOMK4LW6xs1tiJNk=
cypress-hardhat@^2.2.0:
version "2.2.0"
resolved "https://registry.yarnpkg.com/cypress-hardhat/-/cypress-hardhat-2.2.0.tgz#4e1c0f16f0c915dda54ddeccbf5dea19f80eed2f"
integrity sha512-Jtzd49vvyWSshR43w18WJ4b/40EhSItTTl82QYBNqiSPPrC/yj0derJHZyqMqq2LZvrsfmiY92fIBDgvxUCxZQ==
cypress-hardhat@^2.3.0:
version "2.3.0"
resolved "https://registry.yarnpkg.com/cypress-hardhat/-/cypress-hardhat-2.3.0.tgz#646b35d57490d060e3fd4441e76e4d91b4ff4ec7"
integrity sha512-Sj437lFrUZ9UJGXS5a+DLQPBoyaWUxJafEiydNqKKpViKswBiylHD3ZJu2mrtQ/fhp7lgOPpMP72IQX4Ncwzdg==
dependencies:
"@uniswap/permit2-sdk" "^1.2.0"
"@uniswap/sdk-core" "^3.0.1"
......
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