/** * 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 should = require("should"); var csvNode = require("../../../../nodes/core/parsers/70-CSV.js"); var helper = require("../../helper.js"); describe('CSV node', function() { before(function(done) { helper.startServer(done); }); afterEach(function() { helper.unload(); }); it('should be loaded with defaults', function(done) { var flow = [{id:"csvNode1", type:"csv", name: "csvNode" }]; helper.load(csvNode, flow, function() { var n1 = helper.getNode("csvNode1"); n1.should.have.property('name', 'csvNode'); n1.should.have.property('template', [ '' ]); n1.should.have.property('sep', ','); n1.should.have.property('quo', '"'); n1.should.have.property('ret', '\n'); n1.should.have.property('winflag', false); n1.should.have.property('lineend', '\n'); n1.should.have.property('multi', 'one'); n1.should.have.property('hdrin', false); done(); }); }); describe('csv to json', function() { it('should convert a simple csv string to a javascript object', function(done) { var flow = [ { id:"n1", type:"csv", temp:"a,b,c,d", wires:[["n2"]] }, {id:"n2", type:"helper"} ]; helper.load(csvNode, flow, function() { var n1 = helper.getNode("n1"); var n2 = helper.getNode("n2"); n2.on("input", function(msg) { msg.should.have.property('payload', { a: 1, b: 2, c: 3, d: 4 }); done(); }); var testString = "1,2,3,4"+String.fromCharCode(10); n1.emit("input", {payload:testString}); }); }); it('should remove quotes and whitespace from template', function(done) { var flow = [ { id:"n1", type:"csv", temp:'"a", "b" , " c "," d " ', wires:[["n2"]] }, {id:"n2", type:"helper"} ]; helper.load(csvNode, flow, function() { var n1 = helper.getNode("n1"); var n2 = helper.getNode("n2"); n2.on("input", function(msg) { msg.should.have.property('payload', { a: 1, b: 2, c: 3, d: 4 }); done(); }); var testString = "1,2,3,4"+String.fromCharCode(10); n1.emit("input", {payload:testString}); }); }); it('should create column names if no template provided', function(done) { var flow = [ { id:"n1", type:"csv", temp:'', wires:[["n2"]] }, {id:"n2", type:"helper"} ]; helper.load(csvNode, flow, function() { var n1 = helper.getNode("n1"); var n2 = helper.getNode("n2"); n2.on("input", function(msg) { msg.should.have.property('payload', { col1: 1, col2: 2, col3: 3, col4: 4 }); done(); }); var testString = "1,2,3,4"+String.fromCharCode(10); n1.emit("input", {payload:testString}); }); }); it('should allow dropping of fields from the template', function(done) { var flow = [ { id:"n1", type:"csv", temp:"a,,,d", wires:[["n2"]] }, {id:"n2", type:"helper"} ]; helper.load(csvNode, flow, function() { var n1 = helper.getNode("n1"); var n2 = helper.getNode("n2"); n2.on("input", function(msg) { msg.should.have.property('payload', { a: 1, d: 4 }); done(); }); var testString = "1,2,3,4"+String.fromCharCode(10); n1.emit("input", {payload:testString}); }); }); it('should allow quotes in the input', function(done) { var flow = [ { id:"n1", type:"csv", temp:"a,b,c,d,e,f,g", wires:[["n2"]] }, {id:"n2", type:"helper"} ]; helper.load(csvNode, flow, function() { var n1 = helper.getNode("n1"); var n2 = helper.getNode("n2"); n2.on("input", function(msg) { //console.log(msg); msg.should.have.property('payload', { a: 1, b: -2, c: '+3', d: 4, e: -5, f: 'ab"cd', g: 'with,a,comma' }); done(); }); var testString = '"1","-2","+3","04","-05","ab""cd","with,a,comma"'+String.fromCharCode(10); n1.emit("input", {payload:testString}); }); }); it('should recover from an odd number of quotes in the input', function(done) { var flow = [ { id:"n1", type:"csv", temp:"a,b,c,d,e,f,g", wires:[["n2"]] }, {id:"n2", type:"helper"} ]; helper.load(csvNode, flow, function() { var n1 = helper.getNode("n1"); var n2 = helper.getNode("n2"); n2.on("input", function(msg) { //console.log(msg); msg.should.have.property('payload', { a: "with,an", b: "odd,number", c: "ofquotes" }); //msg.should.have.property('payload', { a: 1, b: -2, c: '+3', d: 4, e: -5, f: 'ab"cd', g: 'with,a,comma' }); done(); }); var testString = '"with,a"n,odd","num"ber","of"qu"ot"es"'+String.fromCharCode(10); n1.emit("input", {payload:testString}); }); }); it('should be able to use the first line as a template', function(done) { var flow = [ { id:"n1", type:"csv", temp:"a,b,c,d", hdrin:true, wires:[["n2"]] }, {id:"n2", type:"helper"} ]; helper.load(csvNode, flow, function() { var n1 = helper.getNode("n1"); var n2 = helper.getNode("n2"); var c = 0; n2.on("input", function(msg) { //console.log(msg); if (c === 0) { msg.should.have.property('payload', { w: 1, x: 2, y: 3, z: 4 }); c += 1; } else { msg.should.have.property('payload', { w: 5, x: 6, y: 7, z: 8 }); done(); } }); var testString = "w,x,y,z\n1,2,3,4\n\n5,6,7,8"; n1.emit("input", {payload:testString}); }); }); it('should be able to output multiple lines as one array', function(done) { var flow = [ { id:"n1", type:"csv", temp:"a,b,c,d", multi:"yes", wires:[["n2"]] }, {id:"n2", type:"helper"} ]; helper.load(csvNode, flow, function() { var n1 = helper.getNode("n1"); var n2 = helper.getNode("n2"); n2.on("input", function(msg) { msg.should.have.property('payload', [ { a: 1, b: 2, c: 3, d: 4 },{ a: 5, b: -6, c: 7, d: '+8' },{ a: 9, b: 0, c: 'a', d: 'b' },{ a: 'c', b: 'd', c: 'e', d: 'f' } ]); done(); }); var testString = "1,2,3,4\n5,-6,07,+8\n9,0,a,b\nc,d,e,f"; n1.emit("input", {payload:testString}); }); }); it('should handle numbers in strings but not IP addresses', function(done) { var flow = [ { id:"n1", type:"csv", temp:"a,b,c,d,e", wires:[["n2"]] }, {id:"n2", type:"helper"} ]; helper.load(csvNode, flow, function() { var n1 = helper.getNode("n1"); var n2 = helper.getNode("n2"); n2.on("input", function(msg) { msg.should.have.property('payload', { a: "a", b: "127.0.0.1", c: 56.7, d: -32.8, e: "+76.22C" }); done(); }); var testString = "a,127.0.0.1,56.7,-32.8,+76.22C"; n1.emit("input", {payload:testString}); }); }); }); describe('json object to csv', function() { it('should convert a simple object back to a csv', function(done) { var flow = [ { id:"n1", type:"csv", temp:"a,b,c,,e", wires:[["n2"]] }, {id:"n2", type:"helper"} ]; helper.load(csvNode, flow, function() { var n1 = helper.getNode("n1"); var n2 = helper.getNode("n2"); n2.on("input", function(msg) { try { msg.should.have.property('payload', '4,foo,true,,0\n'); done(); } catch(e) { done(e); } }); var testJson = { e:0, d:1, b:"foo", c:true, a:4 }; n1.emit("input", {payload:testJson}); }); }); it('should convert a simple object back to a csv with no template', function(done) { var flow = [ { id:"n1", type:"csv", temp:" ", wires:[["n2"]] }, {id:"n2", type:"helper"} ]; helper.load(csvNode, flow, function() { var n1 = helper.getNode("n1"); var n2 = helper.getNode("n2"); n2.on("input", function(msg) { try { msg.should.have.property('payload', '1,foo,"ba""r","di,ng"\n'); done(); } catch(e) { done(e); } }); var testJson = { d:1, b:"foo", c:"ba\"r", a:"di,ng" }; n1.emit("input", {payload:testJson}); }); }); it('should handle a template with spaces in the property names', function(done) { var flow = [ { id:"n1", type:"csv", temp:"a,b o,c p,,e", wires:[["n2"]] }, {id:"n2", type:"helper"} ]; helper.load(csvNode, flow, function() { var n1 = helper.getNode("n1"); var n2 = helper.getNode("n2"); n2.on("input", function(msg) { try { msg.should.have.property('payload', '4,foo,true,,0\n'); done(); } catch(e) { done(e); } }); var testJson = { e:0, d:1, "b o":"foo", "c p":true, a:4 }; n1.emit("input", {payload:testJson}); }); }); it('should convert an array of objects to a multi-line csv', function(done) { var flow = [ { id:"n1", type:"csv", temp:"a,b,c,d", wires:[["n2"]] }, {id:"n2", type:"helper"} ]; helper.load(csvNode, flow, function() { var n1 = helper.getNode("n1"); var n2 = helper.getNode("n2"); n2.on("input", function(msg) { try { msg.should.have.property('payload', '4,3,2,1\n1,2,3,4\n'); done(); } catch(e) { done(e); } }); var testJson = [{ d: 1, b: 3, c: 2, a: 4 },{d:4,a:1,c:3,b:2}]; n1.emit("input", {payload:testJson}); }); }); it('should convert a simple array back to a csv', function(done) { var flow = [ { id:"n1", type:"csv", temp:"a,b,c,d", wires:[["n2"]] }, {id:"n2", type:"helper"} ]; helper.load(csvNode, flow, function() { var n1 = helper.getNode("n1"); var n2 = helper.getNode("n2"); n2.on("input", function(msg) { try { msg.should.have.property('payload', ',0,1,foo,"ba""r","di,ng"\n'); done(); } catch(e) { done(e); } }); var testJson = ["",0,1,"foo",'ba"r','di,ng']; n1.emit("input", {payload:testJson}); }); }); it('should convert an array of arrays back to a multi-line csv', function(done) { var flow = [ { id:"n1", type:"csv", temp:"a,b,c,d", wires:[["n2"]] }, {id:"n2", type:"helper"} ]; helper.load(csvNode, flow, function() { var n1 = helper.getNode("n1"); var n2 = helper.getNode("n2"); n2.on("input", function(msg) { try { msg.should.have.property('payload', '0,1,2,3,4\n4,3,2,1,0\n'); done(); } catch(e) { done(e); } }); var testJson = [[0,1,2,3,4],[4,3,2,1,0]]; n1.emit("input", {payload:testJson}); }); }); it('should be able to include column names as first row', function(done) { var flow = [ { id:"n1", type:"csv", temp:"a,b,c,d", hdrout:true, ret:"\r\n", wires:[["n2"]] }, {id:"n2", type:"helper"} ]; helper.load(csvNode, flow, function() { var n1 = helper.getNode("n1"); var n2 = helper.getNode("n2"); n2.on("input", function(msg) { try { msg.should.have.property('payload', 'a,b,c,d\r\n4,3,2,1\r\n'); done(); } catch(e) { done(e); } }); var testJson = [{ d: 1, b: 3, c: 2, a: 4 }]; n1.emit("input", {payload:testJson}); }); }); it('should handle quotes and sub-properties', function(done) { var flow = [ { id:"n1", type:"csv", temp:"a,b,c,d", wires:[["n2"]] }, {id:"n2", type:"helper"} ]; helper.load(csvNode, flow, function() { var n1 = helper.getNode("n1"); var n2 = helper.getNode("n2"); n2.on("input", function(msg) { try { msg.should.have.property('payload', '{},"text,with,commas","This ""is"" a banana","{""sub"":""object""}"\n'); done(); } catch(e) { done(e); } }); var testJson = { d: {sub:"object"}, b: "text,with,commas", c: 'This "is" a banana', a: {sub2:undefined} }; n1.emit("input", {payload:testJson}); }); }); }); it('should just pass through if no payload provided', function(done) { var flow = [ { id:"n1", type:"csv", temp:"a,b,c,d", wires:[["n2"]] }, {id:"n2", type:"helper"} ]; helper.load(csvNode, flow, function() { var n1 = helper.getNode("n1"); var n2 = helper.getNode("n2"); n2.on("input", function(msg) { try { msg.should.have.property('topic', { a: 4, b: 3, c: 2, d: 1 }); msg.should.not.have.property('payload'); done(); } catch(e) { done(e); } }); var testJson = { d: 1, b: 3, c: 2, a: 4 }; n1.emit("input", {topic:testJson}); }); }); it('should warn if provided a number or boolean', function(done) { var flow = [ { id:"n1", type:"csv", temp:"a,b,c,d", wires:[["n2"]] }, {id:"n2", type:"helper"} ]; helper.load(csvNode, flow, function() { var n1 = helper.getNode("n1"); var n2 = helper.getNode("n2"); setTimeout(function() { try { var logEvents = helper.log().args.filter(function(evt) { return evt[0].type == "csv"; }); logEvents.should.have.length(2); logEvents[0][0].should.have.a.property('msg'); logEvents[0][0].msg.toString().should.startWith('csv.errors.csv_js'); logEvents[1][0].should.have.a.property('msg'); logEvents[1][0].msg.toString().should.startWith('csv.errors.csv_js'); done(); } catch(err) { done(err); } },150); n1.emit("input", {payload:1}); n1.emit("input", {payload:true}); }); }); });