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'use strict'
const { promisify } = require('util')
const Pool = require('../pool')
const { buildMockDispatch } = require('./mock-utils')
const {
kDispatches,
kMockAgent,
kClose,
kOriginalClose,
kOrigin,
kOriginalDispatch,
kConnected
} = require('./mock-symbols')
const { MockInterceptor } = require('./mock-interceptor')
const Symbols = require('../core/symbols')
const { InvalidArgumentError } = require('../core/errors')
/**
* MockPool provides an API that extends the Pool to influence the mockDispatches.
*/
class MockPool extends Pool {
constructor (origin, opts) {
super(origin, opts)
if (!opts || !opts.agent || typeof opts.agent.dispatch !== 'function') {
throw new InvalidArgumentError('Argument opts.agent must implement Agent')
}
this[kMockAgent] = opts.agent
this[kOrigin] = origin
this[kDispatches] = []
this[kConnected] = 1
this[kOriginalDispatch] = this.dispatch
this[kOriginalClose] = this.close.bind(this)
this.dispatch = buildMockDispatch.call(this)
this.close = this[kClose]
}
get [Symbols.kConnected] () {
return this[kConnected]
}
/**
* Sets up the base interceptor for mocking replies from undici.
*/
intercept (opts) {
return new MockInterceptor(opts, this[kDispatches])
}
async [kClose] () {
await promisify(this[kOriginalClose])()
this[kConnected] = 0
this[kMockAgent][Symbols.kClients].delete(this[kOrigin])
}
}
module.exports = MockPool
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