added files

test/util.csv.js

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+'use strict';
+
+var _ = require('lodash');
+var chai = chai || require('chai');
+var sinon = sinon || require('sinon');
+var should = chai.should();
+
+var csv = require('../js/util/csv')
+var moment = require('../lib/moment/moment');
+
+describe('csv utils', function() {
+  it('should convert simple json', function(done) {
+    var data = [
+      { name: 'Lennon John', age: 40, lastLogin: moment(1417608870000), },
+      { name: 'Cobain, Kurt', age: 27, lastLogin: moment('2014-11-01'), },
+    ];
+
+    var descriptor = {
+      columns: [
+        { label: 'Name', property: 'name', type: 'string' },
+        { label: 'Age', property: 'age', type: 'number' },
+        { property: 'lastLogin', type: 'date' },
+      ],
+    };
+
+    csv.toCsv(data, descriptor, function (err, res) {
+      res.should.equal('Name,Age,lastLogin\r\nLennon John,40,2014-12-03T09:14:30-03:00\r\n"Cobain, Kurt",27,2014-11-01T00:00:00-03:00\r\n');
+      done();
+    });
+  });
+  it('should handle empty data', function(done) {
+    var data = [];
+
+    var descriptor = {
+      columns: [
+        { label: 'Name', property: 'name', type: 'string' },
+        { label: 'Age', property: 'age', type: 'number' },
+        { property: 'lastLogin', type: 'date' },
+      ],
+    };
+
+    csv.toCsv(data, descriptor, function (err, res) {
+      res.should.equal('Name,Age,lastLogin\r\n');
+      done();
+    });
+  });
+  it('should handle null row in data', function(done) {
+    var data = [
+      { name: 'John', age: 40 },
+      null,
+      { name: 'Kurt', age: 27 },
+    ];
+
+    var descriptor = {
+      columns: [
+        { label: 'Name', property: 'name', type: 'string' },
+        { label: 'Age', property: 'age', type: 'number' },
+      ],
+    };
+
+    csv.toCsv(data, descriptor, function (err, res) {
+      res.should.equal('Name,Age\r\nJohn,40\r\n,\r\nKurt,27\r\n');
+      done();
+    });
+  });
+  it('should format dates', function(done) {
+    var data = [
+      { name: 'John', age: 40, lastLogin: moment(1417608870000), },
+      { name: 'Kurt', age: 27, lastLogin: moment('2014-11-01'), },
+    ];
+
+    var descriptor = {
+      columns: [
+        { property: 'name', type: 'string' },
+        { property: 'age', type: 'number' },
+        { property: 'lastLogin', type: 'date', format: 'YYYY MM DD' },
+      ],
+    };
+
+    csv.toCsv(data, descriptor, function (err, res) {
+      res.should.equal('name,age,lastLogin\r\nJohn,40,2014 12 03\r\nKurt,27,2014 11 01\r\n');
+      done();
+    });
+  });
+  it('should compute values from function properties', function(done) {
+    var data = [
+      { name: 'John', payments: 400, withdrawals: 300, },
+      { name: 'Kurt', payments: 270.5, withdrawals: 200, },
+    ];
+
+    var descriptor = {
+      columns: [
+        { property: 'name', type: 'string' },
+        { label: 'Balance', property: function (obj) { return obj.payments - obj.withdrawals; }, type: 'number' },
+      ],
+    };
+
+    csv.toCsv(data, descriptor, function (err, res) {
+      res.should.equal('name,Balance\r\nJohn,100\r\nKurt,70.5\r\n');
+      done();
+    });
+  });  
+  it('should not fail on error from calculated values', function(done) {
+    var data = [
+      { name: 'John', error: 0 },
+      { name: 'Kurt', error: 1 },
+    ];
+
+    var descriptor = {
+      columns: [{
+        property: 'name',
+        type: 'string'
+      }, {
+        label: 'Error',
+        property: function(obj) {
+          if (obj.error) {
+            throw 'dummy error';
+          } else {
+            return 'ok';
+          }
+        }
+      }, ],
+    };
+    csv.toCsv(data, descriptor, function (err, res) {
+      res.should.equal('name,Error\r\nJohn,ok\r\nKurt,dummy error\r\n');
+      done();
+    });
+  });  
+  it('should use blank label if label not specified for computed property', function(done) {
+    var data = [
+      { name: 'John', payments: 400, withdrawals: 300, },
+      { name: 'Kurt', payments: 270.5, withdrawals: 200, },
+    ];
+
+    var descriptor = {
+      columns: [
+        { property: 'name', type: 'string' },
+        { property: function (obj) { return obj.payments - obj.withdrawals; }, type: 'number' },
+      ],
+    };
+
+    csv.toCsv(data, descriptor, function (err, res) {
+      res.should.equal('name,\r\nJohn,100\r\nKurt,70.5\r\n');
+      done();
+    });
+  });  
+  it('should handle non existent properties', function(done) {
+    var data = [
+      { name: 'John', age: 40 },
+      { name: 'Kurt', age: 27 },
+    ];
+
+    var descriptor = {
+      columns: [
+        { property: 'name', type: 'string' },
+        { property: 'age', type: 'number' },
+        { property: 'lastLogin', type: 'date', format: 'YYYY MM DD' },
+      ],
+    };
+
+    csv.toCsv(data, descriptor, function (err, res) {
+      res.should.equal('name,age,lastLogin\r\nJohn,40,\r\nKurt,27,\r\n');
+      done();
+    });
+  });  
+});