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node-red/test/nodes/core/io/31-tcpin_spec.js

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/**
* Copyright JS Foundation and other contributors, http://js.foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
var net = require("net");
var should = require("should");
var stoppable = require('stoppable');
var helper = require("node-red-node-test-helper");
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var tcpinNode = require("../../../../nodes/core/io/31-tcpin.js");
describe('TCP in Node', function() {
var port = 9200;
var server = undefined;
var server_port = 9300;
var reply_data = undefined;
beforeEach(function(done) {
startServer(done);
});
afterEach(function(done) {
helper.unload();
stopServer(done);
});
function sendArray(sock, array) {
if(array.length > 0) {
sock.write(array[0], function() {
sendArray(sock, array.slice(1));
});
}
else {
sock.end();
}
}
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function startServer(done) {
server_port += 1;
server = stoppable(net.createServer(function(c) {
sendArray(c, reply_data);
})).listen(server_port, "localhost", function(err) {
done(err);
});
}
function stopServer(done) {
server.stop(done);
}
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function send(wdata) {
var opt = {port:port, host:"localhost"};
var client = net.createConnection(opt, function() {
client.write(wdata[0], function() {
client.end();
if(wdata.length > 1) {
send(wdata.slice(1));
}
});
});
}
function eql(v0, v1) {
return((v0 === v1) || ((typeof v0) === 'object' && v0.equals(v1)));
}
function testTCP(flow, wdata, rdata, is_server, done) {
if(is_server) {
reply_data = wdata;
}
helper.load(tcpinNode, flow, function() {
var n2 = helper.getNode("n2");
var rcount = 0;
n2.on("input", function(msg) {
if(eql(msg.payload, rdata[rcount])) {
rcount++;
}
else {
should.fail();
}
if(rcount === rdata.length) {
done();
}
});
if(!is_server) {
send(wdata);
}
});
}
function testTCP0(flow, wdata, rdata, done) {
testTCP(flow, wdata, rdata, false, done);
}
function testTCP1(flow, wdata, rdata, done) {
testTCP(flow, wdata, rdata, true, done);
}
it('should recv data (Stream/Buffer)', function(done) {
var flow = [{id:"n1", type:"tcp in", server:"server", host:"localhost", port:port, datamode:"stream", datatype:"buffer", newline:"", topic:"", base64:false, wires:[["n2"]] },
{id:"n2", type:"helper"}];
testTCP0(flow, ["foo"], [Buffer("foo")], done);
});
it('should recv data (Stream/String/Delimiter:\\n)', function(done) {
var flow = [{id:"n1", type:"tcp in", server:"server", host:"localhost", port:port, datamode:"stream", datatype:"utf8", newline:"\n", topic:"", base64:false, wires:[["n2"]] },
{id:"n2", type:"helper"}];
testTCP0(flow, ["foo\nbar"], ["foo", "bar"], done);
});
it('should recv data (Stream/String/No delimiter)', function(done) {
var flow = [{id:"n1", type:"tcp in", server:"server", host:"localhost", port:port, datamode:"stream", datatype:"utf8", newline:"", topic:"", base64:false, wires:[["n2"]] },
{id:"n2", type:"helper"}];
testTCP0(flow, ["foo\nbar"], ["foo\nbar"], done);
});
it('should recv data (Stream/Base64)', function(done) {
var flow = [{id:"n1", type:"tcp in", server:"server", host:"localhost", port:port, datamode:"stream", datatype:"base64", newline:"", topic:"", base64:false, wires:[["n2"]] },
{id:"n2", type:"helper"}];
testTCP0(flow, ["foo"], [Buffer("foo").toString('base64')], done);
});
it('should recv data (Single/Buffer)', function(done) {
var flow = [{id:"n1", type:"tcp in", server:"server", host:"localhost", port:port, datamode:"single", datatype:"buffer", newline:"", topic:"", base64:false, wires:[["n2"]] },
{id:"n2", type:"helper"}];
testTCP0(flow, ["foo"], [Buffer("foo")], done);
});
it('should recv data (Single/String)', function(done) {
var flow = [{id:"n1", type:"tcp in", server:"server", host:"localhost", port:port, datamode:"single", datatype:"utf8", newline:"\n", topic:"", base64:false, wires:[["n2"]] },
{id:"n2", type:"helper"}];
testTCP0(flow, ["foo\nbar\nbaz"], ["foo\nbar\nbaz"], done);
});
it('should recv data (Stream/Base64)', function(done) {
var flow = [{id:"n1", type:"tcp in", server:"server", host:"localhost", port:port, datamode:"single", datatype:"base64", newline:"", topic:"", base64:false, wires:[["n2"]] },
{id:"n2", type:"helper"}];
testTCP0(flow, ["foo"], [Buffer("foo").toString('base64')], done);
});
it('should recv multiple data (Stream/Buffer)', function(done) {
var flow = [{id:"n1", type:"tcp in", server:"server", host:"localhost", port:port, datamode:"stream", datatype:"buffer", newline:"", topic:"", base64:false, wires:[["n2"]] },
{id:"n2", type:"helper"}];
testTCP0(flow, ["foo", "bar"], [Buffer("foo"), Buffer("bar")], done);
});
it('should recv multiple data (Stream/String/Delimiter:\\n)', function(done) {
var flow = [{id:"n1", type:"tcp in", server:"server", host:"localhost", port:port, datamode:"stream", datatype:"utf8", newline:"\n", topic:"", base64:false, wires:[["n2"]] },
{id:"n2", type:"helper"}];
testTCP0(flow, ["foo", "bar\nbaz"], ["foo", "bar", "baz"], done);
});
it('should recv multiple data (Stream/String/No delimiter)', function(done) {
var flow = [{id:"n1", type:"tcp in", server:"server", host:"localhost", port:port, datamode:"stream", datatype:"utf8", newline:"", topic:"", base64:false, wires:[["n2"]] },
{id:"n2", type:"helper"}];
testTCP0(flow, ["foo", "bar\nbaz"], ["foo", "bar\nbaz"], done);
});
it('should recv multiple data (Stream/Base64)', function(done) {
var flow = [{id:"n1", type:"tcp in", server:"server", host:"localhost", port:port, datamode:"stream", datatype:"base64", newline:"", topic:"", base64:false, wires:[["n2"]] },
{id:"n2", type:"helper"}];
var wdata = ["foo", "bar"];
var rdata = wdata.map(function(x) {
return Buffer(x).toString('base64');
});
testTCP0(flow, wdata, rdata, done);
});
it('should connect & recv data (Stream/Buffer)', function(done) {
var flow = [{id:"n1", type:"tcp in", server:"client", host:"localhost", port:server_port, datamode:"stream", datatype:"buffer", newline:"", topic:"", base64:false, wires:[["n2"]] },
{id:"n2", type:"helper"}];
testTCP1(flow, ["foo"], [Buffer("foo")], done);
});
it('should connect & recv data (Stream/String/Delimiter:\\n)', function(done) {
var flow = [{id:"n1", type:"tcp in", server:"client", host:"localhost", port:server_port, datamode:"stream", datatype:"utf8", newline:"\n", topic:"", base64:false, wires:[["n2"]] },
{id:"n2", type:"helper"}];
testTCP1(flow, ["foo\nbar"], ["foo", "bar"], done);
});
it('should connect & recv data (Stream/String/No delimiter)', function(done) {
var flow = [{id:"n1", type:"tcp in", server:"client", host:"localhost", port:server_port, datamode:"stream", datatype:"utf8", newline:"", topic:"", base64:false, wires:[["n2"]] },
{id:"n2", type:"helper"}];
testTCP1(flow, ["foo\nbar"], ["foo\nbar"], done);
});
it('should connect & recv data (Stream/Base64)', function(done) {
var flow = [{id:"n1", type:"tcp in", server:"client", host:"localhost", port:server_port, datamode:"stream", datatype:"base64", newline:"", topic:"", base64:false, wires:[["n2"]] },
{id:"n2", type:"helper"}];
testTCP1(flow, ["foo"], [Buffer("foo").toString('base64')], done);
});
it('should connect & recv data (Single/Buffer)', function(done) {
var flow = [{id:"n1", type:"tcp in", server:"client", host:"localhost", port:server_port, datamode:"single", datatype:"buffer", newline:"", topic:"", base64:false, wires:[["n2"]] },
{id:"n2", type:"helper"}];
testTCP1(flow, ["foo"], [Buffer("foo")], done);
});
it('should connect & recv data (Single/String)', function(done) {
var flow = [{id:"n1", type:"tcp in", server:"client", host:"localhost", port:server_port, datamode:"single", datatype:"utf8", newline:"\n", topic:"", base64:false, wires:[["n2"]] },
{id:"n2", type:"helper"}];
testTCP1(flow, ["foo\nbar\nbaz"], ["foo\nbar\nbaz"], done);
});
it('should connect & recv data (Stream/Base64)', function(done) {
var flow = [{id:"n1", type:"tcp in", server:"client", host:"localhost", port:server_port, datamode:"single", datatype:"base64", newline:"", topic:"", base64:false, wires:[["n2"]] },
{id:"n2", type:"helper"}];
testTCP1(flow, ["foo"], [Buffer("foo").toString('base64')], done);
});
});