mirror of https://github.com/lukechilds/node.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
71 lines
1.9 KiB
71 lines
1.9 KiB
8 years ago
|
'use strict';
|
||
|
|
const common = require('../common');
|
||
|
|
const assert = require('assert');
|
||
|
|
const Readable = require('stream').Readable;
|
||
|
|
|
||
|
|
const readable = new Readable({
|
||
|
|
read: () => {}
|
||
|
|
});
|
||
|
|
|
||
|
|
// Initialized to false.
|
||
|
|
assert.strictEqual(readable._readableState.emittedReadable, false);
|
||
|
|
|
||
|
|
readable.on('readable', common.mustCall(() => {
|
||
|
|
// emittedReadable should be true when the readable event is emitted
|
||
|
|
assert.strictEqual(readable._readableState.emittedReadable, true);
|
||
|
|
readable.read();
|
||
|
|
// emittedReadable is reset to false during read()
|
||
|
|
assert.strictEqual(readable._readableState.emittedReadable, false);
|
||
|
|
}, 4));
|
||
|
|
|
||
|
|
// When the first readable listener is just attached,
|
||
|
|
// emittedReadable should be false
|
||
|
|
assert.strictEqual(readable._readableState.emittedReadable, false);
|
||
|
|
|
||
|
|
// Each one of these should trigger a readable event.
|
||
|
|
process.nextTick(common.mustCall(() => {
|
||
|
|
readable.push('foo');
|
||
|
|
}));
|
||
|
|
process.nextTick(common.mustCall(() => {
|
||
|
|
readable.push('bar');
|
||
|
|
}));
|
||
|
|
process.nextTick(common.mustCall(() => {
|
||
|
|
readable.push('quo');
|
||
|
|
}));
|
||
|
|
process.nextTick(common.mustCall(() => {
|
||
|
|
readable.push(null);
|
||
|
|
}));
|
||
|
|
|
||
|
|
const noRead = new Readable({
|
||
|
|
read: () => {}
|
||
|
|
});
|
||
|
|
|
||
|
|
noRead.on('readable', common.mustCall(() => {
|
||
|
|
// emittedReadable should be true when the readable event is emitted
|
||
|
|
assert.strictEqual(noRead._readableState.emittedReadable, true);
|
||
|
|
noRead.read(0);
|
||
|
|
// emittedReadable is not reset during read(0)
|
||
|
|
assert.strictEqual(noRead._readableState.emittedReadable, true);
|
||
|
|
}));
|
||
|
|
|
||
|
|
noRead.push('foo');
|
||
|
|
noRead.push(null);
|
||
|
|
|
||
|
|
const flowing = new Readable({
|
||
|
|
read: () => {}
|
||
|
|
});
|
||
|
|
|
||
|
|
flowing.on('data', common.mustCall(() => {
|
||
|
|
// When in flowing mode, emittedReadable is always false.
|
||
|
|
assert.strictEqual(flowing._readableState.emittedReadable, false);
|
||
|
|
flowing.read();
|
||
|
|
assert.strictEqual(flowing._readableState.emittedReadable, false);
|
||
|
|
}, 3));
|
||
|
|
|
||
|
|
flowing.push('foooo');
|
||
|
|
flowing.push('bar');
|
||
|
|
flowing.push('quo');
|
||
|
|
process.nextTick(common.mustCall(() => {
|
||
|
|
flowing.push(null);
|
||
|
|
}));
|