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'use strict';
const common = require('../common');
const assert = require('assert');
const path = require('path');
const fs = require('fs');
const file = path.join(common.tmpDir, 'write.txt');
common.refreshTmpDir();
const stream = fs.WriteStream(file);
const _fs_close = fs.close;
const _fs_open = fs.open;
// change the fs.open with an identical function after the WriteStream
// has pushed it onto its internal action queue, but before it's
// returned. This simulates AOP-style extension of the fs lib.
fs.open = function() {
return _fs_open.apply(fs, arguments);
};
fs.close = function(fd) {
assert.ok(fd, 'fs.close must not be called with an undefined fd.');
fs.close = _fs_close;
fs.open = _fs_open;
};
stream.write('foo');
stream.end();
process.on('exit', function() {
assert.equal(fs.open, _fs_open);
});
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