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'use strict';
const common = require('../common');
// Testing Readable Stream resumeScheduled state
const assert = require('assert');
const { Readable, Writable } = require('stream');
{
// pipe() test case
const r = new Readable({ read() {} });
const w = new Writable();
// resumeScheduled should start = `false`.
assert.strictEqual(r._readableState.resumeScheduled, false);
// Calling pipe() should change the state value = true.
r.pipe(w);
assert.strictEqual(r._readableState.resumeScheduled, true);
process.nextTick(common.mustCall(() => {
assert.strictEqual(r._readableState.resumeScheduled, false);
}));
}
{
// 'data' listener test case
const r = new Readable({ read() {} });
// resumeScheduled should start = `false`.
assert.strictEqual(r._readableState.resumeScheduled, false);
r.push(Buffer.from([1, 2, 3]));
// Adding 'data' listener should change the state value
r.on('data', common.mustCall(() => {
assert.strictEqual(r._readableState.resumeScheduled, false);
}));
assert.strictEqual(r._readableState.resumeScheduled, true);
process.nextTick(common.mustCall(() => {
assert.strictEqual(r._readableState.resumeScheduled, false);
}));
}
{
// resume() test case
const r = new Readable({ read() {} });
// resumeScheduled should start = `false`.
assert.strictEqual(r._readableState.resumeScheduled, false);
// Calling resume() should change the state value.
r.resume();
assert.strictEqual(r._readableState.resumeScheduled, true);
r.on('resume', common.mustCall(() => {
// The state value should be `false` again
assert.strictEqual(r._readableState.resumeScheduled, false);
}));
process.nextTick(common.mustCall(() => {
assert.strictEqual(r._readableState.resumeScheduled, false);
}));
}