Current File : //proc/self/root/usr/src/node-v0.10.4/test/simple/test-readline-interface.js
// Copyright Joyent, Inc. and other Node contributors.
//
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// 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.
var assert = require('assert');
var readline = require('readline');
var EventEmitter = require('events').EventEmitter;
var inherits = require('util').inherits;
function FakeInput() {
EventEmitter.call(this);
}
inherits(FakeInput, EventEmitter);
FakeInput.prototype.resume = function() {};
FakeInput.prototype.pause = function() {};
FakeInput.prototype.write = function() {};
FakeInput.prototype.end = function() {};
[ true, false ].forEach(function(terminal) {
var fi;
var rli;
var called;
// sending a full line
fi = new FakeInput();
rli = new readline.Interface({ input: fi, output: fi, terminal: terminal });
called = false;
rli.on('line', function(line) {
called = true;
assert.equal(line, 'asdf');
});
fi.emit('data', 'asdf\n');
assert.ok(called);
// sending a blank line
fi = new FakeInput();
rli = new readline.Interface({ input: fi, output: fi, terminal: terminal });
called = false;
rli.on('line', function(line) {
called = true;
assert.equal(line, '');
});
fi.emit('data', '\n');
assert.ok(called);
// sending a single character with no newline
fi = new FakeInput();
rli = new readline.Interface(fi, {});
called = false;
rli.on('line', function(line) {
called = true;
});
fi.emit('data', 'a');
assert.ok(!called);
rli.close();
// sending a single character with no newline and then a newline
fi = new FakeInput();
rli = new readline.Interface({ input: fi, output: fi, terminal: terminal });
called = false;
rli.on('line', function(line) {
called = true;
assert.equal(line, 'a');
});
fi.emit('data', 'a');
assert.ok(!called);
fi.emit('data', '\n');
assert.ok(called);
rli.close();
// sending multiple newlines at once
fi = new FakeInput();
rli = new readline.Interface({ input: fi, output: fi, terminal: terminal });
var expectedLines = ['foo', 'bar', 'baz'];
var callCount = 0;
rli.on('line', function(line) {
assert.equal(line, expectedLines[callCount]);
callCount++;
});
fi.emit('data', expectedLines.join('\n') + '\n');
assert.equal(callCount, expectedLines.length);
rli.close();
// sending multiple newlines at once that does not end with a new line
fi = new FakeInput();
rli = new readline.Interface({ input: fi, output: fi, terminal: terminal });
expectedLines = ['foo', 'bar', 'baz', 'bat'];
callCount = 0;
rli.on('line', function(line) {
assert.equal(line, expectedLines[callCount]);
callCount++;
});
fi.emit('data', expectedLines.join('\n'));
assert.equal(callCount, expectedLines.length - 1);
rli.close();
// \r\n should emit one line event, not two
fi = new FakeInput();
rli = new readline.Interface({ input: fi, output: fi, terminal: terminal });
expectedLines = ['foo', 'bar', 'baz', 'bat'];
callCount = 0;
rli.on('line', function(line) {
assert.equal(line, expectedLines[callCount]);
callCount++;
});
fi.emit('data', expectedLines.join('\r\n'));
assert.equal(callCount, expectedLines.length - 1);
rli.close();
// \r\n should emit one line event when split across multiple writes.
fi = new FakeInput();
rli = new readline.Interface({ input: fi, output: fi, terminal: terminal });
expectedLines = ['foo', 'bar', 'baz', 'bat'];
callCount = 0;
rli.on('line', function(line) {
assert.equal(line, expectedLines[callCount]);
callCount++;
});
expectedLines.forEach(function(line) {
fi.emit('data', line + '\r');
fi.emit('data', '\n');
});
assert.equal(callCount, expectedLines.length);
rli.close();
// \r should behave like \n when alone
fi = new FakeInput();
rli = new readline.Interface({ input: fi, output: fi, terminal: true });
expectedLines = ['foo', 'bar', 'baz', 'bat'];
callCount = 0;
rli.on('line', function(line) {
assert.equal(line, expectedLines[callCount]);
callCount++;
});
fi.emit('data', expectedLines.join('\r'));
assert.equal(callCount, expectedLines.length - 1);
rli.close();
// sending a multi-byte utf8 char over multiple writes
var buf = Buffer('☮', 'utf8');
fi = new FakeInput();
rli = new readline.Interface({ input: fi, output: fi, terminal: terminal });
callCount = 0;
rli.on('line', function(line) {
callCount++;
assert.equal(line, buf.toString('utf8'));
});
[].forEach.call(buf, function(i) {
fi.emit('data', Buffer([i]));
});
assert.equal(callCount, 0);
fi.emit('data', '\n');
assert.equal(callCount, 1);
rli.close();
assert.deepEqual(fi.listeners('end'), []);
assert.deepEqual(fi.listeners(terminal ? 'keypress' : 'data'), []);
});
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