text: describe('c3 api data', function () {
      'use strict';
  
      var chart;
  
      var args = {
          data: {
              columns: [
                  ['data1', 30, 200, 100, 400, 150, 250],
                  ['data2', 5000, 2000, 1000, 4000, 1500, 2500]
              ],
              names: {
                  data1: 'Data Name 1',
                  data2: 'Data Name 2'
              },
              colors: {
                  data1: '#FF0000',
                  data2: '#00FF00'
              },
              axes: {
                  data1: 'y',
                  data2: 'y2'
              }
          },
          axis: {
              y2: {
                  show: true
              }
          }
      };
  
      beforeEach(function (done) {
          jasmine.addMatchers(customMatchers);
          chart = window.initChart(chart, args, done);
      });
  
      describe('data()', function () {
  
          it('should return all of data if no argument given', function () {
              var results = chart.data(),
                  expected = ['data1', 'data2'];
              results.forEach(function (result, i) {
                  expect(result.id).toBe(expected[i]);
              });
          });
  
          it('should return specified data if string argument given', function () {
              var results = chart.data('data1');
              expect(results.length).toBe(1);
              expect(results[0].id).toBe('data1');
          });
  
          it('should return specified data if array argument given', function () {
              var results = chart.data(['data1', 'data2']);
              expect(results.length).toBe(2);
              expect(results[0].id).toBe('data1');
              expect(results[1].id).toBe('data2');
          });
  
      });
  
      describe('data.shown()', function () {
  
          it('should return only shown targets', function () {
              var results;
              chart.hide('data1');
              results = chart.data.shown();
              expect(results.length).toBe(1);
              expect(results[0].id).toBe('data2');
          });
  
      });
  
      describe('data.values()', function () {
  
          it('should return values for specified target', function () {
              var values = chart.data.values('data1'),
                  expectedValues = [30, 200, 100, 400, 150, 250];
              expect(values.length).toBe(6);
              values.forEach(function (v, i) {
                  expect(v).toBe(expectedValues[i]);
              });
          });
  
          it('should return null when no args', function () {
              var values = chart.data.values();
              expect(values).toBeNull();
          });
  
      });
  
      describe('data.names()', function () {
  
          it('should return data.names specified as argument', function () {
              var results = chart.data.names();
              expect(results.data1).toBe('Data Name 1');
              expect(results.data2).toBe('Data Name 2');
          });
  
          it('should return data.names specified as api', function () {
              var results = chart.data.names({
                  data1: 'New Data Name 1',
                  data2: 'New Data Name 2'
              });
              expect(results.data1).toBe('New Data Name 1');
              expect(results.data2).toBe('New Data Name 2');
          });
  
          it('should set data.names specified as api', function () {
              expect(d3.select('.c3-legend-item-data1 text').text()).toBe("New Data Name 1");
              expect(d3.select('.c3-legend-item-data2 text').text()).toBe("New Data Name 2");
          });
  
      });
  
      describe('data.colors()', function () {
  
          it('should return data.colors specified as argument', function () {
              var results = chart.data.colors();
              expect(results.data1).toBeHexOrRGB('#FF0000');
              expect(results.data2).toBeHexOrRGB('#00FF00');
          });
  
          it('should return data.colors specified as api', function () {
              var results = chart.data.colors({
                  data1: '#00FF00',
                  data2: '#FF0000'
              });
              expect(results.data1).toBeHexOrRGB('#00FF00');
              expect(results.data2).toBeHexOrRGB('#FF0000');
          });
  
          it('should set data.colors specified as api', function () {
              expect(d3.select('.c3-line-data1').style('stroke')).toBeHexOrRGB("#00ff00");
              expect(d3.select('.c3-line-data2').style('stroke')).toBeHexOrRGB("#ff0000");
              expect(d3.select('.c3-legend-item-data1 .c3-legend-item-tile').style('stroke')).toBeHexOrRGB("#00ff00");
              expect(d3.select('.c3-legend-item-data2 .c3-legend-item-tile').style('stroke')).toBeHexOrRGB("#ff0000");
          });
  
      });
  
      describe('data.axes()', function () {
  
          it('should return data.axes specified as argument', function () {
              var results = chart.data.axes();
              expect(results.data1).toBe('y');
              expect(results.data2).toBe('y2');
              expect(d3.select('.c3-axis-y g.tick text').text()).toBe('0');
              expect(d3.select('.c3-axis-y2 g.tick text').text()).toBe('1000');
          });
  
          it('should return data.axes specified as api', function () {
              var results = chart.data.axes({
                  data1: 'y2',
                  data2: 'y'
              });
              expect(results.data1).toBe('y2');
              expect(results.data2).toBe('y');
              expect(d3.select('.c3-axis-y g.tick text').text()).toBe('1000');
              expect(d3.select('.c3-axis-y2 g.tick text').text()).toBe('0');
          });
  
      });
  
  });
  
  describe('c3 api data.x', function () {
      'use strict';
  
      var chart;
  
      var args = {
          data: {
              x: 'x',
              columns: [
                  ['x', 10, 30, 45, 50, 70, 100],
                  ['data1', 30, 200, 100, 400, 150, 250],
                  ['data2', 20, 180, 240, 100, 190]
              ]
          }
      };
  
      beforeEach(function (done) {
          chart = window.initChart(chart, args, done);
      });
  
      it('should return values for target data1', function () {
          var values = chart.data.values('data1'),
              expectedValues =   [30, 200, 100, 400, 150, 250];
          expect(values.length).toBe(6);
          values.forEach(function (v, i) {
              expect(v).toBe(expectedValues[i]);
          });
      });
  
      it('should return null when no args', function () {
          var values = chart.data.values();
          expect(values).toBeNull();
      });
  
      it('should return data values for  data if string argument given', function () {
          var results = chart.data('data1');
          expect(results.length).toBe(1);
          expect(results[0].id).toBe('data1');
      });
  
      it('should return specified data if array argument given', function () {
          var results = chart.data(['data1', 'data2']);
          expect(results.length).toBe(2);
          expect(results[0].id).toBe('data1');
          expect(results[1].id).toBe('data2');
      });
  
  });
  
  describe('c3 api data.xs', function () {
      'use strict';
  
      var chart;
  
      var args = {
          data: {
              xs: {
                  'data1': 'x1',
                  'data2': 'x2',
              },
              columns: [
                  ['x1', 10, 30, 45, 50, 70, 100],
                  ['x2', 30, 50, 75, 100, 120],
                  ['data1', 30, 200, 100, 400, 150, 250],
                  ['data2', 20, 180, 240, 100, 190]
              ]
          }
      };
  
      beforeEach(function (done) {
          chart = window.initChart(chart, args, done);
      });
  
      it('should return values for target data1', function () {
          var values = chart.data.values('data1'),
              expectedValues =   [30, 200, 100, 400, 150, 250];
          expect(values.length).toBe(6);
          values.forEach(function (v, i) {
              expect(v).toBe(expectedValues[i]);
          });
      });
  
      it('should return null when no args', function () {
          var values = chart.data.values();
          expect(values).toBeNull();
      });
  
      it('should return data values for  data if string argument given', function () {
          var results = chart.data('data1');
          expect(results.length).toBe(1);
          expect(results[0].id).toBe('data1');
      });
  
      it('should return specified data if array argument given', function () {
          var results = chart.data(['data1', 'data2']);
          expect(results.length).toBe(2);
          expect(results[0].id).toBe('data1');
          expect(results[1].id).toBe('data2');
      });
  
  });
  
  var customMatchers = {
      toBeHexOrRGB: function (util, customEqualityTesters) {
          'use strict';
  
          function rgb2hex(rgb) {
              rgb = rgb.match(/^rgba?[\s+]?\([\s+]?(\d+)[\s+]?,[\s+]?(\d+)[\s+]?,[\s+]?(\d+)[\s+]?/i);
              return (rgb && rgb.length === 4) ? "#" +
                  ("0" + parseInt(rgb[1], 10).toString(16)).slice(-2) +
                  ("0" + parseInt(rgb[2], 10).toString(16)).slice(-2) +
                  ("0" + parseInt(rgb[3], 10).toString(16)).slice(-2) : '';
          }
  
          return {
              compare: function (actual, expected) {
                  if (expected === undefined) {
                      expected = '';
                  }
  
                  var result = {};
                  actual = actual.match('rgb') ? rgb2hex(actual) : actual;
                  expected = expected.match('rgb') ? rgb2hex(expected) : expected;
  
                  result.pass = util.equals(actual, expected, customEqualityTesters);
                  if (result.pass) {
                      result.message = "Expected " + actual + " not to be quite so goofy";
                  } else {
                      result.message = "Expected " + actual + " to be goofy, but it was not very goofy";
  
                  }
  
                  return result;
              }
          };
      }
  };
  