英文:
Creating a file of Certain size in Cypress
问题
我想在 Cypress 测试中创建一个特定大小（26MB）的文件。
我不想在 fixtures 中包含一个真实的文件，因为这会使我的存储库杂乱不堪。
我不能使用环境文件，因为这将在本地和 CI 上运行。它需要是平台无关的。
有没有办法在测试中做到这一点，而不使用系统脚本？
我们能否使用 cy.task 方法做些什么？
英文:
I want to create a file of certain size (26MB) in the cypress test.
I don't want to include a real file in the fixtures as it would clutter my repository.
I can't use an environment file as this would be run locally and on CI. It needs to be platform independent.
Is there a way I can do this in the test without the usage of system scripts?
Is there anything we can do with cy.task method?
答案1
得分: 2
没有永久文件的很好理由。
但是你可以在 before() 钩子中写入文件。
before(() => {
cy.writeFile('cypress/downloads/file26mb.dat', Buffer.alloc(26*1024*1024, '0'))
})
你可以在 after() 钩子中通过任务删除它。
const { defineConfig } = require('cypress')
const fs = require('fs')
module.exports = defineConfig({
e2e: {
setupNodeEvents(on, config) {
on('task', {
deleteFile(path) {
fs.unlinkSync(path)
return null
},
})
},
},
})
after(() => {
cy.task('deleteFile', 'cypress/downloads/file26mb.dat')
})
使用下载文件夹意味着如果由于某种原因（崩溃）文件没有清理，Cypress 会自动清理。
英文:
There's not a great argument for not having a permanent file.
But you can write the file in a before() hook.
before(() => {
cy.writeFile('cypress/downloads/file26mb.dat', Buffer.alloc(26*1024*1024, '0'))
})
You can delete it in an after() hook via a task
const { defineConfig } = require('cypress')
const fs = require('fs')
module.exports = defineConfig({
e2e: {
setupNodeEvents(on, config) {
on('task', {
deleteFile(path) {
fs.unlinkSync(path)
return null
},
})
},
},
})
after(() => {
cy.task('deleteFile, 'cypress/downloads/file26mb.dat')
})
Using the downloads folder means if the file is not cleaned up for some reason (a crash), Cypress cleans it up anyway.
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