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// Flags: --expose-internals
'use strict';
const common = require('../common');
const assert = require('assert');
const fs = require('fs');
const path = require('path');
const SyncWriteStream = require('internal/fs/sync_write_stream');
const tmpdir = require('../common/tmpdir');
tmpdir.refresh();
const filename = path.join(tmpdir.path, 'sync-write-stream.txt');
// Verify constructing the instance with default options.
{
const stream = new SyncWriteStream(1);
assert.strictEqual(stream.fd, 1);
assert.strictEqual(stream.readable, false);
assert.strictEqual(stream.autoClose, true);
}
// Verify constructing the instance with specified options.
{
const stream = new SyncWriteStream(1, { autoClose: false });
assert.strictEqual(stream.fd, 1);
assert.strictEqual(stream.readable, false);
assert.strictEqual(stream.autoClose, false);
}
// Verify that the file will be written synchronously.
{
const fd = fs.openSync(filename, 'w');
const stream = new SyncWriteStream(fd);
const chunk = Buffer.from('foo');
assert.strictEqual(stream._write(chunk, null, common.mustCall(1)), true);
assert.strictEqual(fs.readFileSync(filename).equals(chunk), true);
fs.closeSync(fd);
}
// Verify that the stream will unset the fd after destroy().
{
const fd = fs.openSync(filename, 'w');
const stream = new SyncWriteStream(fd);
stream.on('close', common.mustCall());
assert.strictEqual(stream.destroy(), stream);
assert.strictEqual(stream.fd, null);
}
// Verify that the stream will unset the fd after destroySoon().
{
const fd = fs.openSync(filename, 'w');
const stream = new SyncWriteStream(fd);
stream.on('close', common.mustCall());
assert.strictEqual(stream.destroySoon(), stream);
assert.strictEqual(stream.fd, null);
}
// Verify that calling end() will also destroy the stream.
{
const fd = fs.openSync(filename, 'w');
const stream = new SyncWriteStream(fd);
assert.strictEqual(stream.fd, fd);
stream.end();
assert.strictEqual(stream.fd, null);
}
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