mirror of
https://github.com/node-red/node-red.git
synced 2023-10-10 13:36:53 +02:00
202 lines
8.5 KiB
JavaScript
202 lines
8.5 KiB
JavaScript
/**
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* Copyright JS Foundation and other contributors, http://js.foundation
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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 os = require('os');
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var fs = require('fs-extra');
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var sinon = require('sinon');
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var tailNode = require("../../../../nodes/core/storage/28-tail.js");
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var helper = require("node-red-node-test-helper");
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describe('tail Node', function() {
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var wait = 150;
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var resourcesDir = path.join(__dirname,"..","..","..","resources");
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var fileToTail = path.join(resourcesDir,"28-tail-test-file.txt");
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beforeEach(function(done) {
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fs.writeFileSync(fileToTail, "Tail message line 1\nTail message line 2\n");
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helper.startServer(done);
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});
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afterEach(function(done) {
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helper.unload().then(function() {
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fs.unlinkSync(fileToTail);
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helper.stopServer(done);
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});
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});
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if (os.type() !== "Windows_NT") {
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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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//console.log(msg);
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msg.should.have.property('topic', fileToTail);
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msg.payload.should.equal("Tail message line " + (++inputCounter + 2));
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if (inputCounter === 2) {
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done();
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}
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});
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setTimeout( function() {
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fs.appendFileSync(fileToTail, "Tail message line 3\n");
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fs.appendFileSync(fileToTail, "Tail message line 4\n");
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},wait);
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});
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});
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it('should 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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//console.log(msg);
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msg.should.have.property('topic', fileToTail);
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msg.payload.should.equal("Tail message line 5\nTail message line 6\n");
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done();
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});
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setTimeout( function() {
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fs.appendFileSync(fileToTail, "Tail message line 5\nTail message line 6\n");
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},wait);
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});
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});
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it('should work in binary mode', function(done) {
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var flow = [{id:"tailNode1", type:"tail", name: "tailNode", "filetype":"binary", "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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//console.log(msg);
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msg.should.have.property('topic', fileToTail);
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msg.payload.toString().should.equal("Tail message line 7\nTail message line 8\n");
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done();
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});
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setTimeout( function() {
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fs.appendFileSync(fileToTail, "Tail message line 7\nTail message line 8\n");
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},wait);
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});
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});
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it('should handle a non-existent file', function(done) {
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fs.writeFileSync(fileToTail, "Tail message line.\n");
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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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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");
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done();
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});
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setTimeout(function() {
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fs.unlinkSync(fileToTail);
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},500);
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setTimeout( function() {
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fs.writeFile(fileToTail, "Tail message line\n");
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},1000);
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});
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});
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}
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it('should throw an error if run on Windows', function(done) {
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// Stub os platform so we can make it look like windows
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var os = require('os');
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var spy = sinon.stub(os, 'platform', function(arg) { return("windows"); });
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/*jshint immed: false */
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(function() { tailNode("1234"); }).should.throw();
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os.platform.restore();
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done();
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});
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/*
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it('tail should handle file truncation', 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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var warned = false;
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tailNode1.on("log", function(msg) {
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if (msg.level == "warn") { warned = true; }
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});
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helperNode1.on("input", function(msg) {
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console.log("inputCounter =",inputCounter);
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console.log(msg);
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msg.should.have.property('topic', fileToTail);
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inputCounter++;
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if (inputCounter === 1) {
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warned.should.be.false();
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msg.payload.should.equal("Tail message line append");
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} else if (inputCounter === 2) {
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msg.payload.should.equal("Tail message line truncate");
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} else {
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msg.payload.should.equal("Tail message line append "+inputCounter);
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}
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if (inputCounter === 5) {
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setTimeout(function() {
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warned.should.be.true();
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done();
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},100);
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}
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});
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var actions = [
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function() { fs.appendFileSync(fileToTail, "Tail message line append\n");},
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function() { fs.writeFileSync(fileToTail, "Tail message line truncate\n");},
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function() { fs.appendFileSync(fileToTail, "Tail message line append 3\n");},
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function() { fs.appendFileSync(fileToTail, "Tail message line append 4\n");},
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function() { fs.appendFileSync(fileToTail, "Tail message line append 5\n");}
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];
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function processAction() {
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var action = actions.shift();
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action();
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if (actions.length > 0) {
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setTimeout(function() {
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processAction();
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},250);
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}
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}
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setTimeout( function() {
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processAction();
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},wait);
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});
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});
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*/
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});
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