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Part of #322 Loads node.html files before node.js files Adds helper.unload which must be called by node tests to clear the registery of nodes
94 lines
3.5 KiB
JavaScript
94 lines
3.5 KiB
JavaScript
/**
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* Copyright 2014 IBM Corp.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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**/
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var should = require("should");
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var path = require('path');
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var fs = require('fs-extra');
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var tailNode = require("../../../../nodes/core/storage/28-tail.js");
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var helper = require("../../helper.js");
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describe('TailNode', function() {
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var tempDir = path.join(__dirname, ".tmp/");
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var fileToTail = path.join(tempDir, "tailMe.txt");
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beforeEach(function(done) {
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fs.exists(fileToTail, function(exists) {
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if(exists) {
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fs.unlinkSync(fileToTail);
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}
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});
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fs.exists(tempDir, function(exists) {
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if(!exists) {
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fs.mkdirSync(tempDir);
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}
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fs.writeFileSync(fileToTail, "Tail message line1\nTail message line2\n");
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helper.startServer(done);
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});
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});
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afterEach(function(done) {
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helper.unload();
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fs.exists(fileToTail, function(exists) {
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if(exists) {
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fs.unlinkSync(fileToTail);
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}
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// have to call stop server otherwise tail node litters test output
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// with warnings when tailed file gets deleted
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fs.remove(tempDir, helper.stopServer(done));
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});
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});
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it('should be loaded', function(done) {
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var flow = [{id:"tailNode1", type:"tail", name: "tailNode", "split":true, "filename":fileToTail}];
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helper.load(tailNode, flow, function() {
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var tailNode1 = helper.getNode("tailNode1");
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tailNode1.should.have.property('name', 'tailNode');
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done();
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});
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});
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it('should tail a file', function(done) {
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var flow = [{id:"tailNode1", type:"tail", name: "tailNode", "split":true, "filename":fileToTail, "wires":[["helperNode1"]]},
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{id:"helperNode1", type:"helper", wires:[]}];
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helper.load(tailNode, flow, function() {
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var tailNode1 = helper.getNode("tailNode1");
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var helperNode1 = helper.getNode("helperNode1");
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var inputCounter = 0;
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helperNode1.on("input", function(msg) {
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msg.should.have.property('topic', fileToTail);
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msg.payload.should.equal("Tail message line" + (++inputCounter));
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});
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done();
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});
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});
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it('work in non-split mode', function(done) {
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var flow = [{id:"tailNode1", type:"tail", name: "tailNode", "split":false, "filename":fileToTail, "wires":[["helperNode1"]]},
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{id:"helperNode1", type:"helper", wires:[]}];
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helper.load(tailNode, flow, function() {
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var tailNode1 = helper.getNode("tailNode1");
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var helperNode1 = helper.getNode("helperNode1");
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helperNode1.on("input", function(msg) {
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msg.should.have.property('topic', fileToTail);
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msg.payload.should.equal("Tail message line1\nTail message line2\n");
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});
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done();
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});
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});
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});
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