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'use strict';
const common = require('../common');
const assert = require('assert');
const fs = require('fs');
const stream = fs.createReadStream(__filename, {
bufferSize: 64
});
const err = new Error('BAM');
stream.on('error', common.mustCall((err_) => {
process.nextTick(common.mustCall(() => {
assert.strictEqual(stream.fd, null);
assert.strictEqual(err_, err);
}));
}));
fs.close = common.mustCall((fd_, cb) => {
assert.strictEqual(fd_, stream.fd);
process.nextTick(cb);
});
const read = fs.read;
fs.read = function() {
// first time is ok.
read.apply(fs, arguments);
// then it breaks
fs.read = common.mustCall(function() {
const cb = arguments[arguments.length - 1];
process.nextTick(() => {
cb(err);
});
// and should not be called again!
fs.read = () => {
throw new Error('BOOM!');
};
});
};
stream.on('data', (buf) => {
stream.on('data', common.mustNotCall("no more 'data' events should follow"));
});