chore: e2e insufficient liquidity test (#7075)

* chore: e2e insufficient liquidity test

* Update cypress/e2e/swap/errors.test.ts
Co-authored-by: Zach Pomerantz <zzmp@uniswap.org>

* fixing lint

* waiting for quote

* stubbing insufficient liquidity response

* req reply

* trying full url

* maybe cors

* moving before visit

* adding back timeout

* Revert "adding back timeout"

This reverts commit 89cff3afb815f5e5db005347f20812b83e047057.

* in describe block

* moving to new file

* moving to errors test file

* moving comment

* removing extra describe

---------
Co-authored-by: Zach Pomerantz <zzmp@uniswap.org>

cypress/e2e/swap/errors.test.ts

@@ -116,4 +116,17 @@ describe('Swap errors', () => {
       getBalance(DAI).should('be.closeTo', initialBalance + 200, 1)
     })
   })
+
+  it('no liquidity', () => {
+    // The API response is too variable so stubbing a 404.
+    cy.intercept('POST', 'https://api.uniswap.org/v2/quote', {
+      statusCode: 404,
+      fixture: 'insufficientLiquidity.json',
+    })
+
+    cy.visit(`/swap?inputCurrency=${USDC_MAINNET.address}&outputCurrency=${DAI.address}`)
+    cy.get('#swap-currency-output .token-amount-input').type('100000000000000').should('have.value', '100000000000000') // 100 trillion
+    cy.contains('Insufficient liquidity for this trade.')
+    cy.get('#swap-button').should('not.exist')
+  })
 })

cypress/fixtures/insufficientLiquidity.json

+{
+  "errorCode": "QUOTE_ERROR",
+  "detail": "No quotes available",
+  "id": "63363cc1-d474-4584-b386-7c356814b79f"
+}
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