// Test the bar controller
describe('Doughnut controller tests', function() {
beforeEach(function() {
window.addDefaultMatchers(jasmine);
});
afterEach(function() {
window.releaseAllCharts();
});
it('should be constructed', function() {
var chart = window.acquireChart({
type: 'doughnut',
data: {
datasets: [{
data: []
}],
labels: []
}
});
var meta = chart.getDatasetMeta(0);
expect(meta.type).toBe('doughnut');
expect(meta.controller).not.toBe(undefined);
expect(meta.controller.index).toBe(0);
expect(meta.data).toEqual([]);
meta.controller.updateIndex(1);
expect(meta.controller.index).toBe(1);
});
it('should create arc elements for each data item during initialization', function() {
var chart = window.acquireChart({
type: 'doughnut',
data: {
datasets: [{
data: [10, 15, 0, 4]
}],
labels: []
}
});
var meta = chart.getDatasetMeta(0);
expect(meta.data.length).toBe(4); // 4 rectangles created
expect(meta.data[0] instanceof Chart.elements.Arc).toBe(true);
expect(meta.data[1] instanceof Chart.elements.Arc).toBe(true);
expect(meta.data[2] instanceof Chart.elements.Arc).toBe(true);
expect(meta.data[3] instanceof Chart.elements.Arc).toBe(true);
});
it ('should reset and update elements', function() {
var chart = window.acquireChart({
type: 'doughnut',
data: {
datasets: [{
data: [1, 2, 3, 4],
hidden: true
}, {
data: [5, 6, 0, 7]
}, {
data: [8, 9, 10, 11]
}],
labels: ['label0', 'label1', 'label2', 'label3']
},
options: {
animation: {
animateRotate: true,
animateScale: false
},
cutoutPercentage: 50,
rotation: Math.PI * -0.5,
circumference: Math.PI * 2.0,
elements: {
arc: {
backgroundColor: 'rgb(255, 0, 0)',
borderColor: 'rgb(0, 0, 255)',
borderWidth: 2,
hoverBackgroundColor: 'rgb(255, 255, 255)'
}
}
}
});
var meta = chart.getDatasetMeta(1);
meta.controller.reset(); // reset first
expect(meta.data.length).toBe(4);
[ { c: 0 },
{ c: 0 },
{ c: 0, },
{ c: 0 }
].forEach(function(expected, i) {
expect(meta.data[i]._model.x).toBeCloseToPixel(256);
expect(meta.data[i]._model.y).toBeCloseToPixel(272);
expect(meta.data[i]._model.outerRadius).toBeCloseToPixel(239);
expect(meta.data[i]._model.innerRadius).toBeCloseToPixel(179);
expect(meta.data[i]._model.circumference).toBeCloseTo(expected.c, 8);
expect(meta.data[i]._model).toEqual(jasmine.objectContaining({
startAngle: Math.PI * -0.5,
endAngle: Math.PI * -0.5,
label: chart.data.labels[i],
hoverBackgroundColor: 'rgb(255, 255, 255)',
backgroundColor: 'rgb(255, 0, 0)',
borderColor: 'rgb(0, 0, 255)',
borderWidth: 2
}));
})
chart.update();
[ { c: 1.7453292519, s: -1.5707963267, e: 0.1745329251 },
{ c: 2.0943951023, s: 0.1745329251, e: 2.2689280275 },
{ c: 0, s: 2.2689280275, e: 2.2689280275 },
{ c: 2.4434609527, s: 2.2689280275, e: 4.7123889803 }
].forEach(function(expected, i) {
expect(meta.data[i]._model.x).toBeCloseToPixel(256);
expect(meta.data[i]._model.y).toBeCloseToPixel(272);
expect(meta.data[i]._model.outerRadius).toBeCloseToPixel(239);
expect(meta.data[i]._model.innerRadius).toBeCloseToPixel(179);
expect(meta.data[i]._model.circumference).toBeCloseTo(expected.c, 8);
expect(meta.data[i]._model.startAngle).toBeCloseTo(expected.s, 8);
expect(meta.data[i]._model.endAngle).toBeCloseTo(expected.e, 8);
expect(meta.data[i]._model).toEqual(jasmine.objectContaining({
label: chart.data.labels[i],
hoverBackgroundColor: 'rgb(255, 255, 255)',
backgroundColor: 'rgb(255, 0, 0)',
borderColor: 'rgb(0, 0, 255)',
borderWidth: 2
}));
})
// Change the amount of data and ensure that arcs are updated accordingly
chart.data.datasets[1].data = [1, 2]; // remove 2 elements from dataset 0
chart.update();
expect(meta.data.length).toBe(2);
expect(meta.data[0] instanceof Chart.elements.Arc).toBe(true);
expect(meta.data[1] instanceof Chart.elements.Arc).toBe(true);
// Add data
chart.data.datasets[1].data = [1, 2, 3, 4];
chart.update();
expect(meta.data.length).toBe(4);
expect(meta.data[0] instanceof Chart.elements.Arc).toBe(true);
expect(meta.data[1] instanceof Chart.elements.Arc).toBe(true);
expect(meta.data[2] instanceof Chart.elements.Arc).toBe(true);
expect(meta.data[3] instanceof Chart.elements.Arc).toBe(true);
});
it ('should rotate and limit circumference', function() {
var chart = window.acquireChart({
type: 'doughnut',
data: {
datasets: [{
data: [2, 4],
hidden: true
}, {
data: [1, 3]
}, {
data: [1, 0]
}],
labels: ['label0', 'label1']
},
options: {
cutoutPercentage: 50,
rotation: Math.PI,
circumference: Math.PI * 0.5,
elements: {
arc: {
backgroundColor: 'rgb(255, 0, 0)',
borderColor: 'rgb(0, 0, 255)',
borderWidth: 2,
hoverBackgroundColor: 'rgb(255, 255, 255)'
}
}
}
});
var meta = chart.getDatasetMeta(1);
expect(meta.data.length).toBe(2);
// Only startAngle, endAngle and circumference should be different.
[ { c: Math.PI / 8, s: Math.PI, e: Math.PI + Math.PI / 8 },
{ c: 3 * Math.PI / 8, s: Math.PI + Math.PI / 8, e: Math.PI + Math.PI / 2 }
].forEach(function(expected, i) {
expect(meta.data[i]._model.x).toBeCloseToPixel(495);
expect(meta.data[i]._model.y).toBeCloseToPixel(511);
expect(meta.data[i]._model.outerRadius).toBeCloseToPixel(478);
expect(meta.data[i]._model.innerRadius).toBeCloseToPixel(359);
expect(meta.data[i]._model.circumference).toBeCloseTo(expected.c,8);
expect(meta.data[i]._model.startAngle).toBeCloseTo(expected.s, 8);
expect(meta.data[i]._model.endAngle).toBeCloseTo(expected.e, 8);
})
});
it ('should draw all arcs', function() {
var chart = window.acquireChart({
type: 'doughnut',
data: {
datasets: [{
data: [10, 15, 0, 4]
}],
labels: ['label0', 'label1', 'label2', 'label3']
}
});
var meta = chart.getDatasetMeta(0);
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 the hover style of an arc', function() {
var chart = window.acquireChart({
type: 'doughnut',
data: {
datasets: [{
data: [10, 15, 0, 4]
}],
labels: ['label0', 'label1', 'label2', 'label3']
},
options: {
elements: {
arc: {
backgroundColor: 'rgb(255, 0, 0)',
borderColor: 'rgb(0, 0, 255)',
borderWidth: 2,
}
}
}
});
var meta = chart.getDatasetMeta(0);
var arc = meta.data[0];
meta.controller.setHoverStyle(arc);
expect(arc._model.backgroundColor).toBe('rgb(230, 0, 0)');
expect(arc._model.borderColor).toBe('rgb(0, 0, 230)');
expect(arc._model.borderWidth).toBe(2);
// Set a dataset style to take precedence
chart.data.datasets[0].hoverBackgroundColor = 'rgb(9, 9, 9)';
chart.data.datasets[0].hoverBorderColor = 'rgb(18, 18, 18)';
chart.data.datasets[0].hoverBorderWidth = 1.56;
meta.controller.setHoverStyle(arc);
expect(arc._model.backgroundColor).toBe('rgb(9, 9, 9)');
expect(arc._model.borderColor).toBe('rgb(18, 18, 18)');
expect(arc._model.borderWidth).toBe(1.56);
// Dataset styles can be an array
chart.data.datasets[0].hoverBackgroundColor = ['rgb(255, 255, 255)', 'rgb(9, 9, 9)'];
chart.data.datasets[0].hoverBorderColor = ['rgb(18, 18, 18)'];
chart.data.datasets[0].hoverBorderWidth = [0.1, 1.56];
meta.controller.setHoverStyle(arc);
expect(arc._model.backgroundColor).toBe('rgb(255, 255, 255)');
expect(arc._model.borderColor).toBe('rgb(18, 18, 18)');
expect(arc._model.borderWidth).toBe(0.1);
// Element custom styles also work
arc.custom = {
hoverBackgroundColor: 'rgb(7, 7, 7)',
hoverBorderColor: 'rgb(17, 17, 17)',
hoverBorderWidth: 3.14159,
};
meta.controller.setHoverStyle(arc);
expect(arc._model.backgroundColor).toBe('rgb(7, 7, 7)');
expect(arc._model.borderColor).toBe('rgb(17, 17, 17)');
expect(arc._model.borderWidth).toBe(3.14159);
});
it ('should unset the hover style of an arc', function() {
var chart = window.acquireChart({
type: 'doughnut',
data: {
datasets: [{
data: [10, 15, 0, 4]
}],
labels: ['label0', 'label1', 'label2', 'label3']
},
options: {
elements: {
arc: {
backgroundColor: 'rgb(255, 0, 0)',
borderColor: 'rgb(0, 0, 255)',
borderWidth: 2,
}
}
}
});
var meta = chart.getDatasetMeta(0);
var arc = meta.data[0];
meta.controller.removeHoverStyle(arc);
expect(arc._model.backgroundColor).toBe('rgb(255, 0, 0)');
expect(arc._model.borderColor).toBe('rgb(0, 0, 255)');
expect(arc._model.borderWidth).toBe(2);
// Set a dataset style to take precedence
chart.data.datasets[0].backgroundColor = 'rgb(9, 9, 9)';
chart.data.datasets[0].borderColor = 'rgb(18, 18, 18)';
chart.data.datasets[0].borderWidth = 1.56;
meta.controller.removeHoverStyle(arc);
expect(arc._model.backgroundColor).toBe('rgb(9, 9, 9)');
expect(arc._model.borderColor).toBe('rgb(18, 18, 18)');
expect(arc._model.borderWidth).toBe(1.56);
// Dataset styles can be an array
chart.data.datasets[0].backgroundColor = ['rgb(255, 255, 255)', 'rgb(9, 9, 9)'];
chart.data.datasets[0].borderColor = ['rgb(18, 18, 18)'];
chart.data.datasets[0].borderWidth = [0.1, 1.56];
meta.controller.removeHoverStyle(arc);
expect(arc._model.backgroundColor).toBe('rgb(255, 255, 255)');
expect(arc._model.borderColor).toBe('rgb(18, 18, 18)');
expect(arc._model.borderWidth).toBe(0.1);
// Element custom styles also work
arc.custom = {
backgroundColor: 'rgb(7, 7, 7)',
borderColor: 'rgb(17, 17, 17)',
borderWidth: 3.14159,
};
meta.controller.removeHoverStyle(arc);
expect(arc._model.backgroundColor).toBe('rgb(7, 7, 7)');
expect(arc._model.borderColor).toBe('rgb(17, 17, 17)');
expect(arc._model.borderWidth).toBe(3.14159);
});
});
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