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node-red/test/nodes/core/storage/28-tail_spec.js
Nick O'Leary 15494dda84 Merge pull request #332 from zobalogh/tail-done-fix
Fixing test termination
2014-08-07 13:34:46 +01:00

104 lines
3.8 KiB
JavaScript

/**
* 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 mkdirp = require('mkdirp');
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");
// function which writes to the file creating all missing directories
function writeFile(path, contents) {
mkdirp(tempDir, function(err) {
if(err) {
return err;
}
try {
fs.writeFileSync(path, contents, 'utf8');
} catch (error) {
console.log("Unexpected error writing file: " +error.message);
return error;
}
});
}
beforeEach(function(done) {
writeFile(fileToTail, "Tail message line1\nTail message line2\n");
helper.startServer(done);
});
afterEach(function(done) {
helper.unload();
fs.remove(tempDir, function(err) {
if (err) {
console.log("error occurred removing " + tempDir + ": " +err);
return err;
}
fs.exists(tempDir, function(exists) {
exists.should.be.false;
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));
if(inputCounter === 2) {
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();
});
});
});
});