mirror of https://gitee.com/openkylin/nodejs.git
86 lines
2.1 KiB
JavaScript
86 lines
2.1 KiB
JavaScript
'use strict';
|
|
const common = require('../common');
|
|
const assert = require('assert');
|
|
const { Writable, Readable } = require('stream');
|
|
class NullWriteable extends Writable {
|
|
_write(chunk, encoding, callback) {
|
|
return callback();
|
|
}
|
|
}
|
|
class QuickEndReadable extends Readable {
|
|
_read() {
|
|
this.push(null);
|
|
}
|
|
}
|
|
class NeverEndReadable extends Readable {
|
|
_read() {}
|
|
}
|
|
|
|
{
|
|
const dest = new NullWriteable();
|
|
const src = new QuickEndReadable();
|
|
dest.on('pipe', common.mustCall());
|
|
dest.on('unpipe', common.mustCall());
|
|
src.pipe(dest);
|
|
setImmediate(() => {
|
|
assert.strictEqual(src._readableState.pipesCount, 0);
|
|
});
|
|
}
|
|
|
|
{
|
|
const dest = new NullWriteable();
|
|
const src = new NeverEndReadable();
|
|
dest.on('pipe', common.mustCall());
|
|
dest.on('unpipe', common.mustNotCall('unpipe should not have been emitted'));
|
|
src.pipe(dest);
|
|
setImmediate(() => {
|
|
assert.strictEqual(src._readableState.pipesCount, 1);
|
|
});
|
|
}
|
|
|
|
{
|
|
const dest = new NullWriteable();
|
|
const src = new NeverEndReadable();
|
|
dest.on('pipe', common.mustCall());
|
|
dest.on('unpipe', common.mustCall());
|
|
src.pipe(dest);
|
|
src.unpipe(dest);
|
|
setImmediate(() => {
|
|
assert.strictEqual(src._readableState.pipesCount, 0);
|
|
});
|
|
}
|
|
|
|
{
|
|
const dest = new NullWriteable();
|
|
const src = new QuickEndReadable();
|
|
dest.on('pipe', common.mustCall());
|
|
dest.on('unpipe', common.mustCall());
|
|
src.pipe(dest, { end: false });
|
|
setImmediate(() => {
|
|
assert.strictEqual(src._readableState.pipesCount, 0);
|
|
});
|
|
}
|
|
|
|
{
|
|
const dest = new NullWriteable();
|
|
const src = new NeverEndReadable();
|
|
dest.on('pipe', common.mustCall());
|
|
dest.on('unpipe', common.mustNotCall('unpipe should not have been emitted'));
|
|
src.pipe(dest, { end: false });
|
|
setImmediate(() => {
|
|
assert.strictEqual(src._readableState.pipesCount, 1);
|
|
});
|
|
}
|
|
|
|
{
|
|
const dest = new NullWriteable();
|
|
const src = new NeverEndReadable();
|
|
dest.on('pipe', common.mustCall());
|
|
dest.on('unpipe', common.mustCall());
|
|
src.pipe(dest, { end: false });
|
|
src.unpipe(dest);
|
|
setImmediate(() => {
|
|
assert.strictEqual(src._readableState.pipesCount, 0);
|
|
});
|
|
}
|