/
progress.ts
207 lines (150 loc) 路 4.76 KB
/
progress.ts
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import {promisify} from 'util';
import stream = require('stream');
import fs = require('fs');
import SlowStream = require('slow-stream');
import toReadableStream = require('to-readable-stream');
import getStream = require('get-stream');
import FormData = require('form-data');
import tempy = require('tempy');
import is from '@sindresorhus/is';
import test from 'ava';
import withServer from './helpers/with-server';
const checkEvents = (t, events, bodySize = undefined) => {
t.true(events.length >= 2);
const hasBodySize = is.number(bodySize);
let lastEvent = events.shift();
if (!hasBodySize) {
t.is(lastEvent.percent, 0);
}
for (const [index, event] of events.entries()) {
if (hasBodySize) {
t.is(event.percent, event.transferred / bodySize);
t.true(event.percent > lastEvent.percent);
} else {
const isLastEvent = index === events.length - 1;
t.is(event.percent, isLastEvent ? 1 : 0);
}
t.true(event.transferred >= lastEvent.transferred);
t.is(event.total, bodySize);
lastEvent = event;
}
};
const file = Buffer.alloc(1024 * 1024 * 2);
const downloadEndpoint = (_request, response) => {
response.setHeader('content-length', file.length);
stream.pipeline(
toReadableStream(file),
new SlowStream({maxWriteInterval: 50}),
response,
() => {
response.end();
}
);
};
const noTotalEndpoint = (_request, response) => {
response.write('hello');
response.end();
};
const uploadEndpoint = (request, response) => {
stream.pipeline(
request,
new SlowStream({maxWriteInterval: 100}),
() => {
response.end();
}
);
};
test('download progress', withServer, async (t, server, got) => {
server.get('/', downloadEndpoint);
const events = [];
const {body} = await got({responseType: 'buffer'})
.on('downloadProgress', event => events.push(event));
checkEvents(t, events, body.length);
});
test('download progress - missing total size', withServer, async (t, server, got) => {
server.get('/', noTotalEndpoint);
const events = [];
await got('').on('downloadProgress', event => events.push(event));
checkEvents(t, events);
});
test('download progress - stream', withServer, async (t, server, got) => {
server.get('/', downloadEndpoint);
const events = [];
const stream = got.stream({responseType: 'buffer'})
.on('downloadProgress', event => events.push(event));
await getStream(stream);
checkEvents(t, events, file.length);
});
test('upload progress - file', withServer, async (t, server, got) => {
server.post('/', uploadEndpoint);
const events = [];
await got.post({body: file}).on('uploadProgress', event => events.push(event));
checkEvents(t, events, file.length);
});
test('upload progress - file stream', withServer, async (t, server, got) => {
server.post('/', uploadEndpoint);
const path = tempy.file();
fs.writeFileSync(path, file);
const events = [];
await got.post({body: fs.createReadStream(path)})
.on('uploadProgress', event => events.push(event));
checkEvents(t, events, file.length);
});
test('upload progress - form data', withServer, async (t, server, got) => {
server.post('/', uploadEndpoint);
const events = [];
const body = new FormData();
body.append('key', 'value');
body.append('file', file);
const size = await promisify(body.getLength.bind(body))();
await got.post({body}).on('uploadProgress', event => events.push(event));
checkEvents(t, events, size);
});
test('upload progress - json', withServer, async (t, server, got) => {
server.post('/', uploadEndpoint);
const body = JSON.stringify({key: 'value'});
const size = Buffer.byteLength(body);
const events = [];
await got.post({body}).on('uploadProgress', event => events.push(event));
checkEvents(t, events, size);
});
test('upload progress - stream with known body size', withServer, async (t, server, got) => {
server.post('/', uploadEndpoint);
const events = [];
const options = {
headers: {'content-length': file.length}
};
const request = got.stream.post(options)
.on('uploadProgress', event => events.push(event));
await getStream(
stream.pipeline(toReadableStream(file), request, () => {})
);
checkEvents(t, events, file.length);
});
test('upload progress - stream with unknown body size', withServer, async (t, server, got) => {
server.post('/', uploadEndpoint);
const events = [];
const request = got.stream.post('')
.on('uploadProgress', event => events.push(event));
await getStream(
stream.pipeline(toReadableStream(file), request, () => {})
);
checkEvents(t, events);
});
test('upload progress - no body', withServer, async (t, server, got) => {
server.post('/', uploadEndpoint);
const events = [];
await got.post('').on('uploadProgress', event => events.push(event));
t.deepEqual(events, [
{
percent: 0,
transferred: 0,
total: 0
},
{
percent: 1,
transferred: 0,
total: 0
}
]);
});