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// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
// Flags: --expose_internals
'use strict';
const common = require('../common');
// These test cases are in `sequential` rather than the analogous test file in
// `parallel` because they become unrelaible under load. The unreliability under
// load was determined empirically when the test cases were in `parallel` by
// running:
// tools/test.py -j 96 --repeat 192 test/parallel/test-readline-interface.js
const assert = require('assert');
const readline = require('readline');
const EventEmitter = require('events').EventEmitter;
const inherits = require('util').inherits;
function FakeInput() {
EventEmitter.call(this);
}
inherits(FakeInput, EventEmitter);
FakeInput.prototype.resume = () => {};
FakeInput.prototype.pause = () => {};
FakeInput.prototype.write = () => {};
FakeInput.prototype.end = () => {};
[ true, false ].forEach(function(terminal) {
// sending multiple newlines at once that does not end with a new line
// and a `end` event(last line is)
// \r\n should emit one line event, not two
{
const fi = new FakeInput();
const rli = new readline.Interface(
{ input: fi, output: fi, terminal: terminal }
);
const expectedLines = ['foo', 'bar', 'baz', 'bat'];
let callCount = 0;
rli.on('line', function(line) {
assert.strictEqual(line, expectedLines[callCount]);
callCount++;
});
fi.emit('data', expectedLines.join('\r\n'));
assert.strictEqual(callCount, expectedLines.length - 1);
rli.close();
}
// \r\n should emit one line event when split across multiple writes.
{
const fi = new FakeInput();
const rli = new readline.Interface(
{ input: fi, output: fi, terminal: terminal }
);
const expectedLines = ['foo', 'bar', 'baz', 'bat'];
let callCount = 0;
rli.on('line', function(line) {
assert.strictEqual(line, expectedLines[callCount]);
callCount++;
});
expectedLines.forEach(function(line) {
fi.emit('data', `${line}\r`);
fi.emit('data', '\n');
});
assert.strictEqual(callCount, expectedLines.length);
rli.close();
}
// Emit one line event when the delay between \r and \n is
// over the default crlfDelay but within the setting value.
{
const fi = new FakeInput();
const delay = 125;
const crlfDelay = common.platformTimeout(1000);
const rli = new readline.Interface({
input: fi,
output: fi,
terminal: terminal,
crlfDelay
});
let callCount = 0;
rli.on('line', () => callCount++);
fi.emit('data', '\r');
setTimeout(common.mustCall(() => {
fi.emit('data', '\n');
assert.strictEqual(callCount, 1);
rli.close();
}), delay);
}
});
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