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Code Issues Releases Wiki Activity
fix-csv-commas-in-headers
node-red/test/nodes/core/parsers/70-CSV_spec.js
Dave Conway-Jones 302c5cfe09
CSV node - handle commas in msg.columns if quoted. 
and add more tests
To close #2860
2021-02-12 16:55:41 +00:00

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/* eslint-disable no-undef */
/**
* 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("nr-test-utils").require("@node-red/nodes/core/parsers/70-CSV.js");
var helper = require("node-red-node-test-helper");
const { c } = require("tar");
describe('CSV node', function() {
before(function(done) {
helper.startServer(done);
});
after(function(done) {
helper.stopServer(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() {
var parts_id = undefined;
afterEach(function() {
parts_id = undefined;
});
function check_parts(msg, index, count) {
msg.should.have.property('parts');
if(parts_id === undefined) {
parts_id = msg.parts.id;
}
else {
msg.parts.should.have.property('id', parts_id);
}
msg.parts.should.have.property('index', index);
msg.parts.should.have.property('count', count);
}
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 });
msg.should.have.property('columns', "a,b,c,d");
check_parts(msg, 0, 1);
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 });
check_parts(msg, 0, 1);
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 });
msg.should.have.property('columns', "col1,col2,col3,col4");
check_parts(msg, 0, 1);
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 });
msg.should.have.property('columns', 'a,d');
check_parts(msg, 0, 1);
done();
});
var testString = "1,2,3,4"+String.fromCharCode(10);
n1.emit("input", {payload:testString});
});
});
it('should allow commas and spaces in the template', function(done) {
var flow = [ { id:"n1", type:"csv", temp:"a,b b,\"c,c\",\" d, 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 b":2, "c,c":3, "d, d": 4 });
msg.should.have.property('columns', 'a,b b,"c,c","d, d"');
check_parts(msg, 0, 1);
done();
});
var testString = "1,2,3,4"+String.fromCharCode(10);
n1.emit("input", {payload:testString});
});
});
it('should allow passing in a tempalte as first line of CSV', function(done) {
var flow = [ { id:"n1", type:"csv", temp:"", hdrin:true, 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 b":2, "c,c":3, "d, d": 4 });
msg.should.have.property('columns', 'a,b b,"c,c","d, d"');
check_parts(msg, 0, 1);
done();
});
var testString = 'a,b b,"c,c"," d, d "'+"\n"+"1,2,3,4"+String.fromCharCode(10);
n1.emit("input", {payload:testString});
});
});
it('should leave numbers starting with 0, e and + as strings (except 0.)', 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) {
msg.should.have.property('payload', { a: 123, b: "0123", c: '+123', d: 'e123', e: 'E123', f: -123 });
check_parts(msg, 0, 1);
done();
});
var testString = '123,0123,+123,e123,E123,-123'+String.fromCharCode(10);
n1.emit("input", {payload:testString});
});
});
it('should not parse numbers when told not to do so', function(done) {
var flow = [ { id:"n1", type:"csv", temp:"a,b,c,d,e,f,g", strings:false, 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: "1.23", b: "0123", c: "+123", d: "e123", e: "0", f: "-123", g: "1e3" });
check_parts(msg, 0, 1);
done();
});
var testString = '1.23,0123,+123,e123,0,-123,1e3'+String.fromCharCode(10);
n1.emit("input", {payload:testString});
});
});
it('should leave handle strings with scientific notation as numbers', 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) {
msg.should.have.property('payload', { a: 12000, b: 0.012, c: -12000, d: -0.012 });
check_parts(msg, 0, 1);
done();
});
var testString = '12E3,12e-3,-12e3,-12E-3'+String.fromCharCode(10);
n1.emit("input", {payload:testString});
});
});
it('should allow quotes in the input (but drop blank strings)', function(done) {
var flow = [ { id:"n1", type:"csv", temp:"a,b,c,d,e,f,g,h", 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:'04', f:'-05', g:'ab"cd', h:'with,a,comma' });
check_parts(msg, 0, 1);
done();
});
var testString = '"1","-2","+3","04","","-05","ab""cd","with,a,comma"'+String.fromCharCode(10);
n1.emit("input", {payload:testString});
});
});
it('should allow blank strings in the input if selected', function(done) {
var flow = [ { id:"n1", type:"csv", temp:"a,b,c,d,e,f,g", include_empty_strings:true, 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: '', c: '', d: '', e: '-05', f: 'ab"cd', g: 'with,a,comma' });
//check_parts(msg, 0, 1);
done();
});
var testString = '"1","","","","-05","ab""cd","with,a,comma"'+String.fromCharCode(10);
n1.emit("input", {payload:testString});
});
});
it('should allow missing columns (nulls) in the input if selected', function(done) {
var flow = [ { id:"n1", type:"csv", temp:"a,b,c,d,e,f,g", include_null_values:true, 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: null, c: '+3', d: null, e: '-05', f: 'ab"cd', g: 'with,a,comma' });
//check_parts(msg, 0, 1);
done();
});
var testString = '"1",,"+3",,"-05","ab""cd","with,a,comma"'+String.fromCharCode(10);
n1.emit("input", {payload:testString});
});
});
it('should handle cr and lf 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 a\nnew line", b: "and a\rcarriage return", c: "and why\r\nnot both"});
check_parts(msg, 0, 1);
done();
});
var testString = '"with a'+String.fromCharCode(10)+'new line","and a'+String.fromCharCode(13)+'carriage return","and why\r\nnot both"'+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");
var c = 0;
n2.on("input", function(msg) {
if (c == 0) {
c = 1;
msg.should.have.property('payload', { a: "with,an", b: "odd,number", c: "ofquotes\n" });
check_parts(msg, 0, 1);
}
else {
msg.should.have.property('payload', { a: "this is", b: "a normal", c: "line" });
check_parts(msg, 0, 1);
done();
}
});
var testString = '"with,a"n,odd","num"ber","of"qu"ot"es"'+String.fromCharCode(10);
n1.emit("input", {payload:testString});
n1.emit("input", {payload:'"this is","a normal","line"'});
});
});
it('should recover from an odd number of quotes in the input (2)', 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");
var c = 0;
n2.on("input", function(msg) {
//console.log(msg)
if (c == 0) {
c = 1;
msg.should.have.property('payload', { a: "with,an", b: "odd,number", c: "ofquotes\nthis is,a normal,line" });
check_parts(msg, 0, 1);
}
else {
msg.should.have.property('payload', { a: "this is", b: "another", c: "line" });
check_parts(msg, 0, 1);
done();
}
});
var testString = '"with,a"n,odd","num"ber","of"qu"ot"es"'+String.fromCharCode(10)+'"this is","a normal","line"'+String.fromCharCode(10);
n1.emit("input", {payload:testString});
n1.emit("input", {payload:'"this is","another","line"'});
});
});
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 });
check_parts(msg, 0, 2);
c += 1;
}
else {
msg.should.have.property('payload', { w: 5, x: 6, y: 7, z: 8 });
check_parts(msg, 1, 2);
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: '07', d: '+8' },{ a: 9, b: 0, c: 'a', d: 'b' },{ a: 'c', b: 'd', c: 'e', d: 'f' } ]);
msg.should.have.property('columns','a,b,c,d');
msg.should.not.have.property('parts');
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" });
check_parts(msg, 0, 1);
done();
});
var testString = "a,127.0.0.1,56.7,-32.8,+76.22C";
n1.emit("input", {payload:testString});
});
});
it('should preserve parts property', 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 });
check_parts(msg, 3, 4);
done();
});
var testString = "1,2,3,4"+String.fromCharCode(10);
n1.emit("input", {payload:testString, parts: {id:"X", index:3, count:4} });
});
});
it('should be able to use the first of multiple parts as a template if parts are present', function(done) {
var flow = [ { id:"n1", type:"csv", temp:"", 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) {
if (c === 0) {
msg.should.have.property('payload', { w: 1, x: 2, y: 3, z: 4 });
check_parts(msg, 0, 2);
c += 1;
}
else {
msg.should.have.property('payload', { w: 5, x: 6, y: 7, z: 8 });
check_parts(msg, 1, 2);
done();
}
});
var testString1 = "w,x,y,z\n";
var testString2 = "1,2,3,4\n";
var testString3 = "5,6,7,8\n";
n1.emit("input", {payload:testString1, parts:{id:"X", index:0, count:3}});
n1.emit("input", {payload:testString2, parts:{id:"X", index:1, count:3}});
n1.emit("input", {payload:testString3, parts:{id:"X", index:2, count:3}});
});
});
it('should skip several lines from start if requested', function(done) {
var flow = [ { id:"n1", type:"csv", temp:"a,b,c,d", skip: 2, 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: 9, b: 0, c: "A", d: "B" });
check_parts(msg, 0, 1);
done();
});
var testString = "1,2,3,4"+String.fromCharCode(10)+"5,6,7,8"+String.fromCharCode(10)+"9,0,A,B"+String.fromCharCode(10);
n1.emit("input", {payload:testString});
});
});
it('should skip several lines from start then use next line as a template', function(done) {
var flow = [ { id:"n1", type:"csv", temp:"a,b,c,d", hdrin:true, skip: 2, 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', { "9": "C", "0": "D", "A": "E", "B": "F" });
check_parts(msg, 0, 1);
done();
});
var testString = "1,2,3,4"+String.fromCharCode(10)+"5,6,7,8"+String.fromCharCode(10)+"9,0,A,B"+String.fromCharCode(10)+"C,D,E,F"+String.fromCharCode(10);
n1.emit("input", {payload:testString});
});
});
it('should skip several lines from start and correct parts', function(done) {
var flow = [ { id:"n1", type:"csv", temp:"a,b,c,d", skip: 2, 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) {
if (c===0) {
msg.should.have.property('payload', { a: 9, b: 0, c: "A", d: "B" });
check_parts(msg, 0, 2);
c = c+1;
}
else {
msg.should.have.property('payload', { a: "C", b: "D", c: "E", d: "F" });
check_parts(msg, 1, 2);
done();
}
});
var testString = "1,2,3,4"+String.fromCharCode(10)+"5,6,7,8"+String.fromCharCode(10)+"9,0,A,B"+String.fromCharCode(10)+"C,D,E,F"+String.fromCharCode(10);
n1.emit("input", {payload:testString});
});
});
it('should be able to skip and then use the first of multiple parts as a template if parts are present', function(done) {
var flow = [ { id:"n1", type:"csv", temp:"", hdrin:true, skip:2, 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) {
if (c === 0) {
msg.should.have.property('payload', { w: 1, x: 2, y: 3, z: 4 });
msg.should.have.property('columns', 'w,x,y,z');
check_parts(msg, 0, 2);
c += 1;
}
else {
msg.should.have.property('payload', { w: 5, x: 6, y: 7, z: 8 });
msg.should.have.property('columns', 'w,x,y,z');
check_parts(msg, 1, 2);
done();
}
});
var testStringA = "foo\n";
var testStringB = "bar\n";
var testString1 = "w,x,y,z\n";
var testString2 = "1,2,3,4\n";
var testString3 = "5,6,7,8\n";
n1.emit("input", {payload:testStringA, parts:{id:"X", index:0, count:5}});
n1.emit("input", {payload:testStringB, parts:{id:"X", index:1, count:5}});
n1.emit("input", {payload:testString1, parts:{id:"X", index:2, count:5}});
n1.emit("input", {payload:testString2, parts:{id:"X", index:3, count:5}});
n1.emit("input", {payload:testString3, parts:{id:"X", index:4, count:5}});
});
});
});
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,d,c,b", 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', '4,1,2,3\n1,4,3,2\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 an array of objects to a multi-line csv and add a header', function(done) {
var flow = [ { id:"n1", type:"csv", temp:"a,b,c,d", hdrout:"all", 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\n4,3,2,1\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 an array of objects to a multi-line csv without a 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', '1,3,2,4\n4,2,3,1\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 an array of objects to a multi-line csv without a template and with a header', function(done) {
var flow = [ { id:"n1", type:"csv", temp:"", hdrout:"all", 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', 'd,b,c,a\n1,3,2,4\n4,2,3,1\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 be able to pass in column names', function(done) {
var flow = [ { id:"n1", type:"csv", temp:"", hdrout:"once", ret:"\r\n", wires:[["n2"]] },
{id:"n2", type:"helper"} ];
helper.load(csvNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
var count = 0;
n2.on("input", function(msg) {
count += 1;
try {
if (count === 1) {
msg.should.have.property('payload', 'a,,b,a\r\n4,,3,4\r\n');
}
if (count === 3) {
msg.should.have.property('payload', '4,,3,4\r\n');
done()
}
}
catch(e) { done(e); }
});
var testJson = [{ d: 1, b: 3, c: 2, a: 4 }];
n1.emit("input", {payload:testJson, columns:"a,,b,a"});
n1.emit("input", {payload:testJson});
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});
});
});
it('should call done when message processing is completed', function(done) {
const completeNode = require("nr-test-utils").require("@node-red/nodes/core/common/24-complete.js");
const flow = [ { id:"n1", type:"csv", temp:"a,b,c,d", wires:[[]]},
{ id:"c1", type:"complete", scope: ["n1"], uncaught:false, wires:[["h1"]]},
{ id:"h1", type:"helper", wires:[[]]} ];
helper.load([csvNode,completeNode], flow, function() {
const n1 = helper.getNode("n1");
const h1 = helper.getNode("h1");
h1.on("input", function(msg) {
try {
msg.should.have.a.property('payload', "1,2,3,4");
done();
} catch (e) {
done(e);
}
});
n1.receive({payload:"1,2,3,4"});
});
});
it('should call done when input causes an error', function(done) {
const completeNode = require("nr-test-utils").require("@node-red/nodes/core/common/24-complete.js");
const flow = [ { id:"n1", type:"csv", temp:"a,b,c,d", wires:[[]]},
{ id:"c1", type:"complete", scope: ["n1"], uncaught:false, wires:[["h1"]]},
{ id:"h1", type:"helper", wires:[[]]} ];
helper.load([csvNode,completeNode], flow, function() {
const n1 = helper.getNode("n1");
const h1 = helper.getNode("h1");
h1.on("input", function(msg) {
try {
msg.should.have.a.property('payload', 1);
done();
} catch (e) {
done(e);
}
});
n1.receive({payload:1}); // neither object nor string
});
});
});
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