text: describe('Chart.controllers.bar', function() {
    describe('auto', jasmine.fixture.specs('controller.bar'));
  
    it('should be registered as dataset controller', function() {
      expect(typeof Chart.controllers.bar).toBe('function');
    });
  
    it('should be constructed', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [
            {data: []},
            {data: []}
          ],
          labels: []
        }
      });
  
      var meta = chart.getDatasetMeta(1);
      expect(meta.type).toEqual('bar');
      expect(meta.data).toEqual([]);
      expect(meta.hidden).toBe(null);
      expect(meta.controller).not.toBe(undefined);
      expect(meta.controller.index).toBe(1);
      expect(meta.xAxisID).not.toBe(null);
      expect(meta.yAxisID).not.toBe(null);
  
      meta.controller.updateIndex(0);
      expect(meta.controller.index).toBe(0);
    });
  
    it('should set null bars to the reset state', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [{
            data: [10, null, 0, -4],
            label: 'dataset1',
          }],
          labels: ['label1', 'label2', 'label3', 'label4']
        }
      });
  
      var meta = chart.getDatasetMeta(0);
      var bar = meta.data[1];
      var {x, y, base} = bar.getProps(['x', 'y', 'base'], true);
      expect(isNaN(x)).toBe(false);
      expect(isNaN(y)).toBe(false);
      expect(isNaN(base)).toBe(false);
    });
  
    it('should use the first scale IDs if the dataset does not specify them', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [
            {data: []},
            {data: []}
          ],
          labels: []
        },
      });
  
      var meta = chart.getDatasetMeta(1);
      expect(meta.xAxisID).toBe('x');
      expect(meta.yAxisID).toBe('y');
    });
  
    it('should correctly count the number of stacks ignoring datasets of other types and hidden datasets', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [
            {data: [], type: 'line'},
            {data: [], hidden: true},
            {data: []},
            {data: []}
          ],
          labels: []
        }
      });
  
      var meta = chart.getDatasetMeta(1);
      expect(meta.controller._getStackCount()).toBe(2);
    });
  
    it('should correctly count the number of stacks when a group is not specified', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [
            {data: []},
            {data: []},
            {data: []},
            {data: []}
          ],
          labels: []
        }
      });
  
      var meta = chart.getDatasetMeta(1);
      expect(meta.controller._getStackCount()).toBe(4);
    });
  
    it('should correctly count the number of stacks when a group is not specified and the scale is stacked', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [
            {data: []},
            {data: []},
            {data: []},
            {data: []}
          ],
          labels: []
        },
        options: {
          scales: {
            x: {
              stacked: true
            },
            y: {
              stacked: true
            }
          }
        }
      });
  
      var meta = chart.getDatasetMeta(1);
      expect(meta.controller._getStackCount()).toBe(1);
    });
  
    it('should correctly count the number of stacks when a group is not specified and the scale is not stacked', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [
            {data: []},
            {data: []},
            {data: []},
            {data: []}
          ],
          labels: []
        },
        options: {
          scales: {
            x: {
              stacked: false
            },
            y: {
              stacked: false
            }
          }
        }
      });
  
      var meta = chart.getDatasetMeta(1);
      expect(meta.controller._getStackCount()).toBe(4);
    });
  
    it('should correctly count the number of stacks when a group is specified for some', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [
            {data: [], stack: 'stack1'},
            {data: [], stack: 'stack1'},
            {data: []},
            {data: []}
          ],
          labels: []
        }
      });
  
      var meta = chart.getDatasetMeta(3);
      expect(meta.controller._getStackCount()).toBe(3);
    });
  
    it('should correctly count the number of stacks when a group is specified for some and the scale is stacked', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [
            {data: [], stack: 'stack1'},
            {data: [], stack: 'stack1'},
            {data: []},
            {data: []}
          ],
          labels: []
        },
        options: {
          scales: {
            x: {
              stacked: true
            },
            y: {
              stacked: true
            }
          }
        }
      });
  
      var meta = chart.getDatasetMeta(3);
      expect(meta.controller._getStackCount()).toBe(2);
    });
  
    it('should correctly count the number of stacks when a group is specified for some and the scale is not stacked', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [
            {data: [], stack: 'stack1'},
            {data: [], stack: 'stack1'},
            {data: []},
            {data: []}
          ],
          labels: []
        },
        options: {
          scales: {
            x: {
              stacked: false
            },
            y: {
              stacked: false
            }
          }
        }
      });
  
      var meta = chart.getDatasetMeta(3);
      expect(meta.controller._getStackCount()).toBe(4);
    });
  
    it('should correctly count the number of stacks when a group is specified for all', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [
            {data: [], stack: 'stack1'},
            {data: [], stack: 'stack1'},
            {data: [], stack: 'stack2'},
            {data: [], stack: 'stack2'}
          ],
          labels: []
        }
      });
  
      var meta = chart.getDatasetMeta(3);
      expect(meta.controller._getStackCount()).toBe(2);
    });
  
    it('should correctly count the number of stacks when a group is specified for all and the scale is stacked', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [
            {data: [], stack: 'stack1'},
            {data: [], stack: 'stack1'},
            {data: [], stack: 'stack2'},
            {data: [], stack: 'stack2'}
          ],
          labels: []
        },
        options: {
          scales: {
            x: {
              stacked: true
            },
            y: {
              stacked: true
            }
          }
        }
      });
  
      var meta = chart.getDatasetMeta(3);
      expect(meta.controller._getStackCount()).toBe(2);
    });
  
    it('should correctly count the number of stacks when a group is specified for all and the scale is not stacked', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [
            {data: [], stack: 'stack1'},
            {data: [], stack: 'stack1'},
            {data: [], stack: 'stack2'},
            {data: [], stack: 'stack2'}
          ],
          labels: []
        },
        options: {
          scales: {
            x: {
              stacked: false
            },
            y: {
              stacked: false
            }
          }
        }
      });
  
      var meta = chart.getDatasetMeta(3);
      expect(meta.controller._getStackCount()).toBe(4);
    });
  
    it('should correctly get the stack index accounting for datasets of other types and hidden datasets', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [
            {data: []},
            {data: [], hidden: true},
            {data: [], type: 'line'},
            {data: []}
          ],
          labels: []
        }
      });
  
      var meta = chart.getDatasetMeta(1);
      expect(meta.controller._getStackIndex(0)).toBe(0);
      expect(meta.controller._getStackIndex(3)).toBe(1);
    });
  
    it('should correctly get the stack index when a group is not specified', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [
            {data: []},
            {data: []},
            {data: []},
            {data: []}
          ],
          labels: []
        }
      });
  
      var meta = chart.getDatasetMeta(1);
      expect(meta.controller._getStackIndex(0)).toBe(0);
      expect(meta.controller._getStackIndex(1)).toBe(1);
      expect(meta.controller._getStackIndex(2)).toBe(2);
      expect(meta.controller._getStackIndex(3)).toBe(3);
    });
  
    it('should correctly get the stack index when a group is not specified and the scale is stacked', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [
            {data: []},
            {data: []},
            {data: []},
            {data: []}
          ],
          labels: []
        },
        options: {
          scales: {
            x: {
              stacked: true
            },
            y: {
              stacked: true
            }
          }
        }
      });
  
      var meta = chart.getDatasetMeta(1);
      expect(meta.controller._getStackIndex(0)).toBe(0);
      expect(meta.controller._getStackIndex(1)).toBe(0);
      expect(meta.controller._getStackIndex(2)).toBe(0);
      expect(meta.controller._getStackIndex(3)).toBe(0);
    });
  
    it('should correctly get the stack index when a group is not specified and the scale is not stacked', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [
            {data: []},
            {data: []},
            {data: []},
            {data: []}
          ],
          labels: []
        },
        options: {
          scales: {
            x: {
              stacked: false
            },
            y: {
              stacked: false
            }
          }
        }
      });
  
      var meta = chart.getDatasetMeta(1);
      expect(meta.controller._getStackIndex(0)).toBe(0);
      expect(meta.controller._getStackIndex(1)).toBe(1);
      expect(meta.controller._getStackIndex(2)).toBe(2);
      expect(meta.controller._getStackIndex(3)).toBe(3);
    });
  
    it('should correctly get the stack index when a group is specified for some', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [
            {data: [], stack: 'stack1'},
            {data: [], stack: 'stack1'},
            {data: []},
            {data: []}
          ],
          labels: []
        }
      });
  
      var meta = chart.getDatasetMeta(1);
      expect(meta.controller._getStackIndex(0)).toBe(0);
      expect(meta.controller._getStackIndex(1)).toBe(0);
      expect(meta.controller._getStackIndex(2)).toBe(1);
      expect(meta.controller._getStackIndex(3)).toBe(2);
    });
  
    it('should correctly get the stack index when a group is specified for some and the scale is stacked', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [
            {data: [], stack: 'stack1'},
            {data: [], stack: 'stack1'},
            {data: []},
            {data: []}
          ],
          labels: []
        },
        options: {
          scales: {
            x: {
              stacked: true
            },
            y: {
              stacked: true
            }
          }
        }
      });
  
      var meta = chart.getDatasetMeta(1);
      expect(meta.controller._getStackIndex(0)).toBe(0);
      expect(meta.controller._getStackIndex(1)).toBe(0);
      expect(meta.controller._getStackIndex(2)).toBe(1);
      expect(meta.controller._getStackIndex(3)).toBe(1);
    });
  
    it('should correctly get the stack index when a group is specified for some and the scale is not stacked', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [
            {data: [], stack: 'stack1'},
            {data: [], stack: 'stack1'},
            {data: []},
            {data: []}
          ],
          labels: []
        },
        options: {
          scales: {
            x: {
              stacked: false
            },
            y: {
              stacked: false
            }
          }
        }
      });
  
      var meta = chart.getDatasetMeta(1);
      expect(meta.controller._getStackIndex(0)).toBe(0);
      expect(meta.controller._getStackIndex(1)).toBe(1);
      expect(meta.controller._getStackIndex(2)).toBe(2);
      expect(meta.controller._getStackIndex(3)).toBe(3);
    });
  
    it('should correctly get the stack index when a group is specified for all', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [
            {data: [], stack: 'stack1'},
            {data: [], stack: 'stack1'},
            {data: [], stack: 'stack2'},
            {data: [], stack: 'stack2'}
          ],
          labels: []
        }
      });
  
      var meta = chart.getDatasetMeta(1);
      expect(meta.controller._getStackIndex(0)).toBe(0);
      expect(meta.controller._getStackIndex(1)).toBe(0);
      expect(meta.controller._getStackIndex(2)).toBe(1);
      expect(meta.controller._getStackIndex(3)).toBe(1);
    });
  
    it('should correctly get the stack index when a group is specified for all and the scale is stacked', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [
            {data: [], stack: 'stack1'},
            {data: [], stack: 'stack1'},
            {data: [], stack: 'stack2'},
            {data: [], stack: 'stack2'}
          ],
          labels: []
        },
        options: {
          scales: {
            x: {
              stacked: true
            },
            y: {
              stacked: true
            }
          }
        }
      });
  
      var meta = chart.getDatasetMeta(1);
      expect(meta.controller._getStackIndex(0)).toBe(0);
      expect(meta.controller._getStackIndex(1)).toBe(0);
      expect(meta.controller._getStackIndex(2)).toBe(1);
      expect(meta.controller._getStackIndex(3)).toBe(1);
    });
  
    it('should correctly get the stack index when a group is specified for all and the scale is not stacked', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [
            {data: [], stack: 'stack1'},
            {data: [], stack: 'stack1'},
            {data: [], stack: 'stack2'},
            {data: [], stack: 'stack2'}
          ],
          labels: []
        },
        options: {
          scales: {
            x: {
              stacked: false
            },
            y: {
              stacked: false
            }
          }
        }
      });
  
      var meta = chart.getDatasetMeta(1);
      expect(meta.controller._getStackIndex(0)).toBe(0);
      expect(meta.controller._getStackIndex(1)).toBe(1);
      expect(meta.controller._getStackIndex(2)).toBe(2);
      expect(meta.controller._getStackIndex(3)).toBe(3);
    });
  
    it('should create bar elements for each data item during initialization', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [
            {data: []},
            {data: [10, 15, 0, -4]}
          ],
          labels: []
        }
      });
  
      var meta = chart.getDatasetMeta(1);
      expect(meta.data.length).toBe(4); // 4 bars created
      expect(meta.data[0] instanceof Chart.elements.BarElement).toBe(true);
      expect(meta.data[1] instanceof Chart.elements.BarElement).toBe(true);
      expect(meta.data[2] instanceof Chart.elements.BarElement).toBe(true);
      expect(meta.data[3] instanceof Chart.elements.BarElement).toBe(true);
    });
  
    it('should update elements when modifying data', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [{
            data: [1, 2],
            label: 'dataset1'
          }, {
            data: [10, 15, 0, -4],
            label: 'dataset2',
            borderColor: 'blue'
          }],
          labels: ['label1', 'label2', 'label3', 'label4']
        },
        options: {
          plugins: {
            legend: false,
            title: false
          },
          elements: {
            bar: {
              backgroundColor: 'red',
              borderSkipped: 'top',
              borderColor: 'green',
              borderWidth: 2,
            }
          },
          scales: {
            x: {
              type: 'category',
              display: false
            },
            y: {
              type: 'linear',
              display: false,
              beginAtZero: false
            }
          }
        }
      });
  
      var meta = chart.getDatasetMeta(1);
      expect(meta.data.length).toBe(4);
  
      chart.data.datasets[1].data = [1, 2]; // remove 2 items
      chart.data.datasets[1].borderWidth = 1;
      chart.update();
  
      expect(meta.data.length).toBe(2);
      expect(meta._parsed.length).toBe(2);
  
      [
        {x: 89, y: 512},
        {x: 217, y: 0}
      ].forEach(function(expected, i) {
        expect(meta.data[i].x).toBeCloseToPixel(expected.x);
        expect(meta.data[i].y).toBeCloseToPixel(expected.y);
        expect(meta.data[i].base).toBeCloseToPixel(1024);
        expect(meta.data[i].width).toBeCloseToPixel(46);
        expect(meta.data[i].options).toEqual(jasmine.objectContaining({
          backgroundColor: 'red',
          borderSkipped: 'top',
          borderColor: 'blue',
          borderWidth: 1
        }));
      });
  
      chart.data.datasets[1].data = [1, 2, 3]; // add 1 items
      chart.update();
  
      expect(meta.data.length).toBe(3); // should add a new meta data item
    });
  
    it('should get the correct bar points when datasets of different types exist', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [{
            data: [1, 2],
            label: 'dataset1'
          }, {
            type: 'line',
            data: [4, 6],
            label: 'dataset2'
          }, {
            data: [8, 10],
            label: 'dataset3'
          }],
          labels: ['label1', 'label2']
        },
        options: {
          plugins: {
            legend: false,
            title: false
          },
          scales: {
            x: {
              type: 'category',
              display: false
            },
            y: {
              type: 'linear',
              display: false,
              beginAtZero: false
            }
          }
        }
      });
  
      var meta = chart.getDatasetMeta(2);
      expect(meta.data.length).toBe(2);
  
      var bar1 = meta.data[0];
      var bar2 = meta.data[1];
  
      expect(bar1.x).toBeCloseToPixel(179);
      expect(bar1.y).toBeCloseToPixel(117);
      expect(bar2.x).toBeCloseToPixel(431);
      expect(bar2.y).toBeCloseToPixel(4);
    });
  
    it('should get the bar points for hidden dataset', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [{
            data: [1, 2],
            label: 'dataset1',
            hidden: true
          }],
          labels: ['label1', 'label2']
        },
        options: {
          plugins: {
            legend: false,
            title: false
          },
          scales: {
            x: {
              type: 'category',
              display: false
            },
            y: {
              type: 'linear',
              min: 0,
              max: 2,
              display: false
            }
          }
        }
      });
  
      var meta = chart.getDatasetMeta(0);
      expect(meta.data.length).toBe(2);
  
      var bar1 = meta.data[0];
      var bar2 = meta.data[1];
  
      expect(bar1.x).toBeCloseToPixel(128);
      expect(bar1.y).toBeCloseToPixel(256);
      expect(bar2.x).toBeCloseToPixel(384);
      expect(bar2.y).toBeCloseToPixel(0);
    });
  
  
    it('should update elements when the scales are stacked', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [{
            data: [10, -10, 10, -10],
            label: 'dataset1'
          }, {
            data: [10, 15, 0, -4],
            label: 'dataset2'
          }],
          labels: ['label1', 'label2', 'label3', 'label4']
        },
        options: {
          plugins: {
            legend: false,
            title: false
          },
          scales: {
            x: {
              type: 'category',
              display: false
            },
            y: {
              type: 'linear',
              display: false,
              stacked: true
            }
          }
        }
      });
  
      var meta0 = chart.getDatasetMeta(0);
  
      [
        {b: 293, w: 92 / 2, x: 38, y: 146},
        {b: 293, w: 92 / 2, x: 166, y: 439},
        {b: 293, w: 92 / 2, x: 295, y: 146},
        {b: 293, w: 92 / 2, x: 422, y: 439}
      ].forEach(function(values, i) {
        expect(meta0.data[i].base).toBeCloseToPixel(values.b);
        expect(meta0.data[i].width).toBeCloseToPixel(values.w);
        expect(meta0.data[i].x).toBeCloseToPixel(values.x);
        expect(meta0.data[i].y).toBeCloseToPixel(values.y);
      });
  
      var meta1 = chart.getDatasetMeta(1);
  
      [
        {b: 146, w: 92 / 2, x: 89, y: 0},
        {b: 293, w: 92 / 2, x: 217, y: 73},
        {b: 146, w: 92 / 2, x: 345, y: 146},
        {b: 439, w: 92 / 2, x: 473, y: 497}
      ].forEach(function(values, i) {
        expect(meta1.data[i].base).toBeCloseToPixel(values.b);
        expect(meta1.data[i].width).toBeCloseToPixel(values.w);
        expect(meta1.data[i].x).toBeCloseToPixel(values.x);
        expect(meta1.data[i].y).toBeCloseToPixel(values.y);
      });
    });
  
    it('should update elements when the scales are stacked and the y axis has a user defined minimum', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [{
            data: [50, 20, 10, 100],
            label: 'dataset1'
          }, {
            data: [50, 80, 90, 0],
            label: 'dataset2'
          }],
          labels: ['label1', 'label2', 'label3', 'label4']
        },
        options: {
          plugins: {
            legend: false,
            title: false
          },
          scales: {
            x: {
              type: 'category',
              display: false
            },
            y: {
              type: 'linear',
              display: false,
              stacked: true,
              min: 50,
              max: 100
            }
          }
        }
      });
  
      var meta0 = chart.getDatasetMeta(0);
  
      [
        {b: 1024, w: 92 / 2, x: 38, y: 512},
        {b: 1024, w: 92 / 2, x: 166, y: 819},
        {b: 1024, w: 92 / 2, x: 294, y: 922},
        {b: 1024, w: 92 / 2, x: 422.5, y: 0}
      ].forEach(function(values, i) {
        expect(meta0.data[i].base).toBeCloseToPixel(values.b);
        expect(meta0.data[i].width).toBeCloseToPixel(values.w);
        expect(meta0.data[i].x).toBeCloseToPixel(values.x);
        expect(meta0.data[i].y).toBeCloseToPixel(values.y);
      });
  
      var meta1 = chart.getDatasetMeta(1);
  
      [
        {b: 512, w: 92 / 2, x: 89, y: 0},
        {b: 819.2, w: 92 / 2, x: 217, y: 0},
        {b: 921.6, w: 92 / 2, x: 345, y: 0},
        {b: 0, w: 92 / 2, x: 473.5, y: 0}
      ].forEach(function(values, i) {
        expect(meta1.data[i].base).toBeCloseToPixel(values.b);
        expect(meta1.data[i].width).toBeCloseToPixel(values.w);
        expect(meta1.data[i].x).toBeCloseToPixel(values.x);
        expect(meta1.data[i].y).toBeCloseToPixel(values.y);
      });
    });
  
    it('should update elements when only the category scale is stacked', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [{
            data: [20, -10, 10, -10],
            label: 'dataset1'
          }, {
            data: [10, 15, 0, -14],
            label: 'dataset2'
          }],
          labels: ['label1', 'label2', 'label3', 'label4']
        },
        options: {
          plugins: {
            legend: false,
            title: false
          },
          scales: {
            x: {
              type: 'category',
              display: false,
              stacked: true
            },
            y: {
              type: 'linear',
              display: false
            }
          }
        }
      });
  
      var meta0 = chart.getDatasetMeta(0);
  
      [
        {b: 293, w: 92, x: 64, y: 0},
        {b: 293, w: 92, x: 192, y: 439},
        {b: 293, w: 92, x: 320, y: 146},
        {b: 293, w: 92, x: 448, y: 439}
      ].forEach(function(values, i) {
        expect(meta0.data[i].base).toBeCloseToPixel(values.b);
        expect(meta0.data[i].width).toBeCloseToPixel(values.w);
        expect(meta0.data[i].x).toBeCloseToPixel(values.x);
        expect(meta0.data[i].y).toBeCloseToPixel(values.y);
      });
  
      var meta1 = chart.getDatasetMeta(1);
  
      [
        {b: 293, w: 92, x: 64, y: 146},
        {b: 293, w: 92, x: 192, y: 73},
        {b: 293, w: 92, x: 320, y: 293},
        {b: 293, w: 92, x: 448, y: 497}
      ].forEach(function(values, i) {
        expect(meta1.data[i].base).toBeCloseToPixel(values.b);
        expect(meta1.data[i].width).toBeCloseToPixel(values.w);
        expect(meta1.data[i].x).toBeCloseToPixel(values.x);
        expect(meta1.data[i].y).toBeCloseToPixel(values.y);
      });
    });
  
    it('should update elements when the scales are stacked and data is strings', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [{
            data: ['10', '-10', '10', '-10'],
            label: 'dataset1'
          }, {
            data: ['10', '15', '0', '-4'],
            label: 'dataset2'
          }],
          labels: ['label1', 'label2', 'label3', 'label4']
        },
        options: {
          plugins: {
            legend: false,
            title: false
          },
          scales: {
            x: {
              type: 'category',
              display: false
            },
            y: {
              type: 'linear',
              display: false,
              stacked: true
            }
          }
        }
      });
  
      var meta0 = chart.getDatasetMeta(0);
  
      [
        {b: 293, w: 92 / 2, x: 38, y: 146},
        {b: 293, w: 92 / 2, x: 166, y: 439},
        {b: 293, w: 92 / 2, x: 295, y: 146},
        {b: 293, w: 92 / 2, x: 422, y: 439}
      ].forEach(function(values, i) {
        expect(meta0.data[i].base).toBeCloseToPixel(values.b);
        expect(meta0.data[i].width).toBeCloseToPixel(values.w);
        expect(meta0.data[i].x).toBeCloseToPixel(values.x);
        expect(meta0.data[i].y).toBeCloseToPixel(values.y);
      });
  
      var meta1 = chart.getDatasetMeta(1);
  
      [
        {b: 146, w: 92 / 2, x: 89, y: 0},
        {b: 293, w: 92 / 2, x: 217, y: 73},
        {b: 146, w: 92 / 2, x: 345, y: 146},
        {b: 439, w: 92 / 2, x: 473, y: 497}
      ].forEach(function(values, i) {
        expect(meta1.data[i].base).toBeCloseToPixel(values.b);
        expect(meta1.data[i].width).toBeCloseToPixel(values.w);
        expect(meta1.data[i].x).toBeCloseToPixel(values.x);
        expect(meta1.data[i].y).toBeCloseToPixel(values.y);
      });
    });
  
    it('should get the correct bar points for grouped stacked chart if the group name is same', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [{
            data: [10, -10, 10, -10],
            label: 'dataset1',
            stack: 'stack1'
          }, {
            data: [10, 15, 0, -4],
            label: 'dataset2',
            stack: 'stack1'
          }],
          labels: ['label1', 'label2', 'label3', 'label4']
        },
        options: {
          plugins: {
            legend: false,
            title: false
          },
          scales: {
            x: {
              type: 'category',
              display: false
            },
            y: {
              type: 'linear',
              display: false,
              stacked: true
            }
          }
        }
      });
  
      var meta0 = chart.getDatasetMeta(0);
  
      [
        {b: 293, w: 92, x: 64, y: 146},
        {b: 293, w: 92, x: 192, y: 439},
        {b: 293, w: 92, x: 320, y: 146},
        {b: 293, w: 92, x: 448, y: 439}
      ].forEach(function(values, i) {
        expect(meta0.data[i].base).toBeCloseToPixel(values.b);
        expect(meta0.data[i].width).toBeCloseToPixel(values.w);
        expect(meta0.data[i].x).toBeCloseToPixel(values.x);
        expect(meta0.data[i].y).toBeCloseToPixel(values.y);
      });
  
      var meta = chart.getDatasetMeta(1);
  
      [
        {b: 146, w: 92, x: 64, y: 0},
        {b: 293, w: 92, x: 192, y: 73},
        {b: 146, w: 92, x: 320, y: 146},
        {b: 439, w: 92, x: 448, y: 497}
      ].forEach(function(values, i) {
        expect(meta.data[i].base).toBeCloseToPixel(values.b);
        expect(meta.data[i].width).toBeCloseToPixel(values.w);
        expect(meta.data[i].x).toBeCloseToPixel(values.x);
        expect(meta.data[i].y).toBeCloseToPixel(values.y);
      });
    });
  
    it('should get the correct bar points for grouped stacked chart if the group name is different', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [{
            data: [1, 2],
            stack: 'stack1'
          }, {
            data: [1, 2],
            stack: 'stack2'
          }],
          labels: ['label1', 'label2', 'label3', 'label4']
        },
        options: {
          plugins: {
            legend: false,
            title: false
          },
          scales: {
            x: {
              type: 'category',
              display: false
            },
            y: {
              type: 'linear',
              display: false,
              stacked: true,
            }
          }
        }
      });
  
      var meta = chart.getDatasetMeta(1);
  
      [
        {x: 89, y: 256},
        {x: 217, y: 0}
      ].forEach(function(values, i) {
        expect(meta.data[i].base).toBeCloseToPixel(512);
        expect(meta.data[i].width).toBeCloseToPixel(46);
        expect(meta.data[i].x).toBeCloseToPixel(values.x);
        expect(meta.data[i].y).toBeCloseToPixel(values.y);
      });
    });
  
    it('should get the correct bar points for grouped stacked chart', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [{
            data: [1, 2],
            stack: 'stack1'
          }, {
            data: [0.5, 1],
            stack: 'stack2'
          }, {
            data: [0.5, 1],
            stack: 'stack2'
          }],
          labels: ['label1', 'label2', 'label3', 'label4']
        },
        options: {
          plugins: {
            legend: false,
            title: false
          },
          scales: {
            x: {
              type: 'category',
              display: false
            },
            y: {
              type: 'linear',
              display: false,
              stacked: true
            }
          }
        }
      });
  
      var meta = chart.getDatasetMeta(2);
  
      [
        {b: 384, x: 89, y: 256},
        {b: 256, x: 217, y: 0}
      ].forEach(function(values, i) {
        expect(meta.data[i].base).toBeCloseToPixel(values.b);
        expect(meta.data[i].width).toBeCloseToPixel(46);
        expect(meta.data[i].x).toBeCloseToPixel(values.x);
        expect(meta.data[i].y).toBeCloseToPixel(values.y);
      });
    });
  
    it('should draw all bars', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [{
            data: [],
          }, {
            data: [10, 15, 0, -4],
            label: 'dataset2'
          }],
          labels: ['label1', 'label2', 'label3', 'label4']
        }
      });
  
      var meta = chart.getDatasetMeta(1);
  
      spyOn(meta.data[0], 'draw');
      spyOn(meta.data[1], 'draw');
      spyOn(meta.data[2], 'draw');
      spyOn(meta.data[3], 'draw');
  
      chart.update();
  
      expect(meta.data[0].draw.calls.count()).toBe(1);
      expect(meta.data[1].draw.calls.count()).toBe(1);
      expect(meta.data[2].draw.calls.count()).toBe(1);
      expect(meta.data[3].draw.calls.count()).toBe(1);
    });
  
    it('should set hover styles on bars', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [{
            data: [],
          }, {
            data: [10, 15, 0, -4],
            label: 'dataset2'
          }],
          labels: ['label1', 'label2', 'label3', 'label4']
        },
        options: {
          elements: {
            bar: {
              backgroundColor: 'rgb(255, 0, 0)',
              borderColor: 'rgb(0, 0, 255)',
              borderWidth: 2,
            }
          }
        }
      });
  
      var meta = chart.getDatasetMeta(1);
      var bar = meta.data[0];
  
      meta.controller.setHoverStyle(bar, 1, 0);
      expect(bar.options.backgroundColor).toBe('#E60000');
      expect(bar.options.borderColor).toBe('#0000E6');
      expect(bar.options.borderWidth).toBe(2);
  
      // Set a dataset style
      chart.data.datasets[1].hoverBackgroundColor = 'rgb(128, 128, 128)';
      chart.data.datasets[1].hoverBorderColor = 'rgb(0, 0, 0)';
      chart.data.datasets[1].hoverBorderWidth = 5;
      chart.update();
  
      meta.controller.setHoverStyle(bar, 1, 0);
      expect(bar.options.backgroundColor).toBe('rgb(128, 128, 128)');
      expect(bar.options.borderColor).toBe('rgb(0, 0, 0)');
      expect(bar.options.borderWidth).toBe(5);
  
      // Should work with array styles so that we can set per bar
      chart.data.datasets[1].hoverBackgroundColor = ['rgb(255, 255, 255)', 'rgb(128, 128, 128)'];
      chart.data.datasets[1].hoverBorderColor = ['rgb(9, 9, 9)', 'rgb(0, 0, 0)'];
      chart.data.datasets[1].hoverBorderWidth = [2.5, 5];
      chart.update();
  
      meta.controller.setHoverStyle(bar, 1, 0);
      expect(bar.options.backgroundColor).toBe('rgb(255, 255, 255)');
      expect(bar.options.borderColor).toBe('rgb(9, 9, 9)');
      expect(bar.options.borderWidth).toBe(2.5);
    });
  
    it('should remove a hover style from a bar', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [{
            data: [],
          }, {
            data: [10, 15, 0, -4],
            label: 'dataset2'
          }],
          labels: ['label1', 'label2', 'label3', 'label4']
        },
        options: {
          elements: {
            bar: {
              backgroundColor: 'rgb(255, 0, 0)',
              borderColor: 'rgb(0, 0, 255)',
              borderWidth: 2,
            }
          }
        }
      });
  
      var meta = chart.getDatasetMeta(1);
      var bar = meta.data[0];
      var helpers = window.Chart.helpers;
  
      // Change default
      chart.options.elements.bar.backgroundColor = 'rgb(128, 128, 128)';
      chart.options.elements.bar.borderColor = 'rgb(15, 15, 15)';
      chart.options.elements.bar.borderWidth = 3.14;
  
      chart.update();
      expect(bar.options.backgroundColor).toBe('rgb(128, 128, 128)');
      expect(bar.options.borderColor).toBe('rgb(15, 15, 15)');
      expect(bar.options.borderWidth).toBe(3.14);
      meta.controller.setHoverStyle(bar, 1, 0);
      expect(bar.options.backgroundColor).toBe(helpers.getHoverColor('rgb(128, 128, 128)'));
      expect(bar.options.borderColor).toBe(helpers.getHoverColor('rgb(15, 15, 15)'));
      expect(bar.options.borderWidth).toBe(3.14);
      meta.controller.removeHoverStyle(bar);
      expect(bar.options.backgroundColor).toBe('rgb(128, 128, 128)');
      expect(bar.options.borderColor).toBe('rgb(15, 15, 15)');
      expect(bar.options.borderWidth).toBe(3.14);
  
      // Should work with array styles so that we can set per bar
      chart.data.datasets[1].backgroundColor = ['rgb(255, 255, 255)', 'rgb(128, 128, 128)'];
      chart.data.datasets[1].borderColor = ['rgb(9, 9, 9)', 'rgb(0, 0, 0)'];
      chart.data.datasets[1].borderWidth = [2.5, 5];
  
      chart.update();
      expect(bar.options.backgroundColor).toBe('rgb(255, 255, 255)');
      expect(bar.options.borderColor).toBe('rgb(9, 9, 9)');
      expect(bar.options.borderWidth).toBe(2.5);
      meta.controller.setHoverStyle(bar, 1, 0);
      expect(bar.options.backgroundColor).toBe(helpers.getHoverColor('rgb(255, 255, 255)'));
      expect(bar.options.borderColor).toBe(helpers.getHoverColor('rgb(9, 9, 9)'));
      expect(bar.options.borderWidth).toBe(2.5);
      meta.controller.removeHoverStyle(bar);
      expect(bar.options.backgroundColor).toBe('rgb(255, 255, 255)');
      expect(bar.options.borderColor).toBe('rgb(9, 9, 9)');
      expect(bar.options.borderWidth).toBe(2.5);
    });
  
    describe('Bar width', function() {
      beforeEach(function() {
        // 2 datasets
        this.data = {
          labels: ['January', 'February', 'March', 'April', 'May', 'June', 'July'],
          datasets: [{
            data: [10, 20, 30, 40, 50, 60, 70],
          }, {
            data: [10, 20, 30, 40, 50, 60, 70],
          }]
        };
      });
  
      afterEach(function() {
        var chart = window.acquireChart(this.config);
        var meta = chart.getDatasetMeta(0);
        var xScale = chart.scales[meta.xAxisID];
        var options = Chart.defaults.datasets.bar;
  
        var categoryPercentage = options.categoryPercentage;
        var barPercentage = options.barPercentage;
        var stacked = xScale.options.stacked;
  
        var totalBarWidth = 0;
        for (var i = 0; i < chart.data.datasets.length; i++) {
          var bars = chart.getDatasetMeta(i).data;
          for (var j = xScale.min; j <= xScale.max; j++) {
            totalBarWidth += bars[j].width;
          }
          if (stacked) {
            break;
          }
        }
  
        var actualValue = totalBarWidth;
        var expectedValue = xScale.width * categoryPercentage * barPercentage;
        expect(actualValue).toBeCloseToPixel(expectedValue);
  
      });
  
      it('should correctly set bar width when min and max option is set.', function() {
        this.config = {
          type: 'bar',
          data: this.data,
          options: {
            scales: {
              x: {
                min: 'March',
                max: 'May',
              }
            }
          }
        };
      });
  
      it('should correctly set bar width when scale are stacked with min and max options.', function() {
        this.config = {
          type: 'bar',
          data: this.data,
          options: {
            scales: {
              x: {
                min: 'March',
                max: 'May',
              },
              y: {
                stacked: true
              }
            }
          }
        };
      });
    });
  
    describe('Bar height (horizontal type)', function() {
      beforeEach(function() {
        // 2 datasets
        this.data = {
          labels: ['January', 'February', 'March', 'April', 'May', 'June', 'July'],
          datasets: [{
            data: [10, 20, 30, 40, 50, 60, 70],
          }, {
            data: [10, 20, 30, 40, 50, 60, 70],
          }]
        };
      });
  
      afterEach(function() {
        var chart = window.acquireChart(this.config);
        var meta = chart.getDatasetMeta(0);
        var yScale = chart.scales[meta.yAxisID];
  
        var config = meta.controller.options;
        var categoryPercentage = config.categoryPercentage;
        var barPercentage = config.barPercentage;
        var stacked = yScale.options.stacked;
  
        var totalBarHeight = 0;
        for (var i = 0; i < chart.data.datasets.length; i++) {
          var bars = chart.getDatasetMeta(i).data;
          for (var j = yScale.min; j <= yScale.max; j++) {
            totalBarHeight += bars[j].height;
          }
          if (stacked) {
            break;
          }
        }
  
        var actualValue = totalBarHeight;
        var expectedValue = yScale.height * categoryPercentage * barPercentage;
        expect(actualValue).toBeCloseToPixel(expectedValue);
  
      });
  
      it('should correctly set bar height when min and max option is set.', function() {
        this.config = {
          type: 'bar',
          data: this.data,
          options: {
            indexAxis: 'y',
            scales: {
              y: {
                min: 'March',
                max: 'May',
              }
            }
          }
        };
      });
  
      it('should correctly set bar height when scale are stacked with min and max options.', function() {
        this.config = {
          type: 'bar',
          data: this.data,
          options: {
            indexAxis: 'y',
            scales: {
              x: {
                stacked: true
              },
              y: {
                min: 'March',
                max: 'May',
              }
            }
          }
        };
      });
    });
  
    describe('Bar thickness with a category scale', function() {
      [undefined, 20].forEach(function(barThickness) {
        describe('When barThickness is ' + barThickness, function() {
          beforeEach(function() {
            this.chart = window.acquireChart({
              type: 'bar',
              data: {
                datasets: [{
                  data: [1, 2]
                }, {
                  data: [1, 2]
                }],
                labels: ['label1', 'label2', 'label3']
              },
              options: {
                legend: false,
                title: false,
                datasets: {
                  bar: {
                    barThickness: barThickness
                  }
                },
                scales: {
                  x: {
                    id: 'x',
                    type: 'category',
                  },
                  y: {
                    type: 'linear',
                  }
                }
              }
            });
          });
  
          it('should correctly set bar width', function() {
            var chart = this.chart;
            var expected, i, ilen, meta;
  
            if (barThickness) {
              expected = barThickness;
            } else {
              var scale = chart.scales.x;
              var options = Chart.defaults.datasets.bar;
              var categoryPercentage = options.categoryPercentage;
              var barPercentage = options.barPercentage;
              var tickInterval = scale.getPixelForTick(1) - scale.getPixelForTick(0);
  
              expected = tickInterval * categoryPercentage / 2 * barPercentage;
            }
  
            for (i = 0, ilen = chart.data.datasets.length; i < ilen; ++i) {
              meta = chart.getDatasetMeta(i);
              expect(meta.data[0].width).toBeCloseToPixel(expected);
              expect(meta.data[1].width).toBeCloseToPixel(expected);
            }
          });
  
          it('should correctly set bar width if maxBarThickness is specified', function() {
            var chart = this.chart;
            var i, ilen, meta;
  
            chart.data.datasets[0].maxBarThickness = 10;
            chart.data.datasets[1].maxBarThickness = 10;
            chart.update();
  
            for (i = 0, ilen = chart.data.datasets.length; i < ilen; ++i) {
              meta = chart.getDatasetMeta(i);
              expect(meta.data[0].width).toBeCloseToPixel(10);
              expect(meta.data[1].width).toBeCloseToPixel(10);
            }
          });
        });
      });
    });
  
    it('minBarLength settings should be used on Y axis on bar chart', function() {
      var minBarLength = 4;
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [{
            minBarLength: minBarLength,
            data: [0.05, -0.05, 10, 15, 20, 25, 30, 35]
          }]
        }
      });
  
      var data = chart.getDatasetMeta(0).data;
      var halfBaseLine = chart.scales.y.getLineWidthForValue(0) / 2;
  
      expect(data[0].base - minBarLength + halfBaseLine).toEqual(data[0].y);
      expect(data[1].base + minBarLength - halfBaseLine).toEqual(data[1].y);
    });
  
    it('minBarLength settings should be used on X axis on horizontal bar chart', function() {
      var minBarLength = 4;
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [{
            indexAxis: 'y',
            minBarLength: minBarLength,
            data: [0.05, -0.05, 10, 15, 20, 25, 30, 35]
          }]
        }
      });
  
      var data = chart.getDatasetMeta(0).data;
      var halfBaseLine = chart.scales.x.getLineWidthForValue(0) / 2;
  
      expect(data[0].base + minBarLength - halfBaseLine).toEqual(data[0].x);
      expect(data[1].base - minBarLength + halfBaseLine).toEqual(data[1].x);
    });
  
    it('should respect the data visibility settings', function() {
      var chart = window.acquireChart({
        type: 'bar',
        data: {
          datasets: [{
            data: [1, 2, 3, 4]
          }],
          labels: ['A', 'B', 'C', 'D']
        },
        options: {
          plugins: {
            legend: false,
            title: false
          },
          scales: {
            x: {
              type: 'category',
              display: false
            },
            y: {
              type: 'linear',
              display: false,
            }
          }
        }
      });
  
      var data = chart.getDatasetMeta(0).data;
      expect(data[0].base).toBeCloseToPixel(512);
      expect(data[0].y).toBeCloseToPixel(384);
  
      chart.toggleDataVisibility(0);
      chart.update();
  
      data = chart.getDatasetMeta(0).data;
      expect(data[0].base).toBeCloseToPixel(512);
      expect(data[0].y).toBeCloseToPixel(512);
    });
  
    describe('Float bar', function() {
      it('Should return correct values from getMinMax', function() {
        var chart = window.acquireChart({
          type: 'bar',
          data: {
            labels: ['a'],
            datasets: [{
              data: [[10, -10]]
            }]
          }
        });
  
        expect(chart.scales.y.getMinMax()).toEqual({min: -10, max: 10});
      });
    });
  
    describe('clip', function() {
      it('Should not use ctx.clip when clip=false', function() {
        var ctx = window.createMockContext();
        ctx.resetTransform = function() {};
  
        var chart = window.acquireChart({
          type: 'bar',
          data: {
            labels: ['a', 'b', 'c'],
            datasets: [{
              data: [1, 2, 3],
              clip: false
            }]
          }
        });
        var orig = chart.ctx;
  
        // Draw on mock context
        chart.ctx = ctx;
        chart.draw();
  
        chart.ctx = orig;
  
        expect(ctx.getCalls().filter(x => x.name === 'clip').length).toEqual(0);
      });
    });
  });
  