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Merge pull request #324 from zobalogh/tail-test

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Adding tail node tests
This commit is contained in:
Nick O'Leary 2014-08-01 16:30:04 +01:00
commit 6c464ed3a4
2 changed files with 102 additions and 1 deletions
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93
test/nodes/core/storage/28-tail_spec.js Normal file
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@ -0,0 +1,93 @@
/**
* Copyright 2014 IBM Corp.
*
* 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 should = require("should");
var path = require('path');
var fs = require('fs-extra');
var tailNode = require("../../../../nodes/core/storage/28-tail.js");
var helper = require("../../helper.js");
describe('TailNode', function() {
var tempDir = path.join(__dirname, ".tmp/");
var fileToTail = path.join(tempDir, "tailMe.txt");
beforeEach(function(done) {
fs.exists(fileToTail, function(exists) {
if(exists) {
fs.unlinkSync(fileToTail);
}
});
fs.exists(tempDir, function(exists) {
if(!exists) {
fs.mkdirSync(tempDir);
}
fs.writeFileSync(fileToTail, "Tail message line1\nTail message line2\n");
helper.startServer(done);
});
});
afterEach(function(done) {
fs.exists(fileToTail, function(exists) {
if(exists) {
fs.unlinkSync(fileToTail);
}
// have to call stop server otherwise tail node litters test output
// with warnings when tailed file gets deleted
fs.remove(tempDir, helper.stopServer(done));
});
});
it('should be loaded', function(done) {
var flow = [{id:"tailNode1", type:"tail", name: "tailNode", "split":true, "filename":fileToTail}];
helper.load(tailNode, flow, function() {
var tailNode1 = helper.getNode("tailNode1");
tailNode1.should.have.property('name', 'tailNode');
done();
});
});
it('should tail a file', function(done) {
var flow = [{id:"tailNode1", type:"tail", name: "tailNode", "split":true, "filename":fileToTail, "wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(tailNode, flow, function() {
var tailNode1 = helper.getNode("tailNode1");
var helperNode1 = helper.getNode("helperNode1");
var inputCounter = 0;
helperNode1.on("input", function(msg) {
msg.should.have.property('topic', fileToTail);
msg.payload.should.equal("Tail message line" + (++inputCounter));
});
done();
});
});
it('work in non-split mode', function(done) {
var flow = [{id:"tailNode1", type:"tail", name: "tailNode", "split":false, "filename":fileToTail, "wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(tailNode, flow, function() {
var tailNode1 = helper.getNode("tailNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
msg.should.have.property('topic', fileToTail);
msg.payload.should.equal("Tail message line1\nTail message line2\n");
});
done();
});
});
});

10
test/nodes/helper.js
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@ -31,6 +31,8 @@ var listenPort = 0; // use ephemeral port
var port;
var url;
var server;
function helperNode(n) {
RED.nodes.createNode(this, n);
}
@ -71,7 +73,7 @@ module.exports = {
},
startServer: function(done) {
var server = http.createServer(function(req,res){app(req,res);});
server = http.createServer(function(req,res){app(req,res);});
RED.init(server, {});
server.listen(listenPort, address);
server.on('listening', function() {
@ -81,6 +83,12 @@ module.exports = {
done();
});
},
//TODO consider saving TCP handshake/server reinit on start/stop/start sequences
stopServer : function(done) {
if(server) {
server.close(done);
}
},
url: function() { return url; },