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Merge pull request #1427 from etimberg/feature/unit-test

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Adds unit tests for the doughnut & line controllers + line controller updates
This commit is contained in:
Evert Timberg
2015-08-30 17:54:12 -04:00
parent 8f97939f25 ce623075e3
commit c4da135fe0
4 changed files with 1280 additions and 16 deletions
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28
src/controllers/controller.doughnut.js
View File

@@ -49,10 +49,6 @@
return this.chart.data.datasets[this.index];
},
getScaleForId: function(scaleID) {
return this.chart.scales[scaleID];
},
addElements: function() {
this.getDataset().metaData = this.getDataset().metaData || [];
helpers.each(this.getDataset().data, function(value, index) {
@@ -71,7 +67,9 @@
_index: index,
});
this.getDataset().backgroundColor.splice(index, 0, colorForNewElement);
if (colorForNewElement && helpers.isArray(this.getDataset().backgroundColor)) {
this.getDataset().backgroundColor.splice(index, 0, colorForNewElement);
}
// Reset the point
this.updateElement(arc, index, true);
@@ -92,7 +90,6 @@
this.chart.innerRadius = this.chart.options.cutoutPercentage ? (this.chart.outerRadius / 100) * (this.chart.options.cutoutPercentage) : 1;
this.chart.radiusLength = (this.chart.outerRadius - this.chart.innerRadius) / this.chart.data.datasets.length;
this.getDataset().total = 0;
helpers.each(this.getDataset().data, function(value) {
this.getDataset().total += Math.abs(value);
@@ -101,6 +98,21 @@
this.outerRadius = this.chart.outerRadius - (this.chart.radiusLength * this.index);
this.innerRadius = this.outerRadius - this.chart.radiusLength;
// Make sure we have metaData for each data point
var numData = this.getDataset().data.length;
var numArcs = this.getDataset().metaData.length;
// Make sure that we handle number of datapoints changing
if (numData < numArcs) {
// Remove excess bars for data points that have been removed
this.getDataset().metaData.splice(numData, numArcs - numData)
} else if (numData > numArcs) {
// Add new elements
for (var index = numArcs; index < numData; ++index) {
this.addElementAndReset(index);
}
}
helpers.each(this.getDataset().metaData, function(arc, index) {
this.updateElement(arc, index, reset);
}, this);
@@ -165,15 +177,13 @@
}, this);
},
setHoverStyle: function(arc) {
var dataset = this.chart.data.datasets[arc._datasetIndex];
var index = arc._index;
arc._model.backgroundColor = arc.custom && arc.custom.hoverBackgroundColor ? arc.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.hoverBackgroundColor, index, helpers.color(arc._model.backgroundColor).saturate(0.5).darken(0.1).rgbString());
arc._model.borderColor = arc.custom && arc.custom.hoverBorderColor ? arc.custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.hoverBorderColor, index, helpers.color(arc._model.borderColor).saturate(0.5).darken(0.1).rgbString());
arc._model.borderWidth = arc.custom && arc.custom.hoverBorderWidth ? arc.custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.borderWidth, index, arc._model.borderWidth);
arc._model.borderWidth = arc.custom && arc.custom.hoverBorderWidth ? arc.custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.hoverBorderWidth, index, arc._model.borderWidth);
},
removeHoverStyle: function(arc) {

25
src/controllers/controller.line.js
View File

@@ -109,6 +109,21 @@
var xScale = this.getScaleForId(this.getDataset().xAxisID);
var scaleBase;
// Handle the number of data points changing
var numData = this.getDataset().data.length;
var numPoints = this.getDataset().metaData.length;
// Make sure that we handle number of datapoints changing
if (numData < numPoints) {
// Remove excess bars for data points that have been removed
this.getDataset().metaData.splice(numData, numPoints - numData)
} else if (numData > numPoints) {
// Add new elements
for (var index = numPoints; index < numData; ++index) {
this.addElementAndReset(index);
}
}
if (yScale.min < 0 && yScale.max < 0) {
scaleBase = yScale.getPixelForValue(yScale.max);
} else if (yScale.min > 0 && yScale.max > 0) {
@@ -180,7 +195,7 @@
x: xScale.getPointPixelForValue(this.getDataset().data[index], index, this.index),
y: reset ? scaleBase : yScale.getPointPixelForValue(this.getDataset().data[index], index, this.index),
// Appearance
tension: point.custom && point.custom.tension ? point.custom.tension : this.chart.options.elements.line.tension,
tension: point.custom && point.custom.tension ? point.custom.tension : (this.getDataset().tension || this.chart.options.elements.line.tension),
radius: point.custom && point.custom.radius ? point.custom.radius : helpers.getValueAtIndexOrDefault(this.getDataset().radius, index, this.chart.options.elements.point.radius),
backgroundColor: point.custom && point.custom.backgroundColor ? point.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().pointBackgroundColor, index, this.chart.options.elements.point.backgroundColor),
borderColor: point.custom && point.custom.borderColor ? point.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().pointBorderColor, index, this.chart.options.elements.point.borderColor),
@@ -253,10 +268,10 @@
var dataset = this.chart.data.datasets[point._datasetIndex];
var index = point._index;
point._model.radius = point.custom && point.custom.radius ? point.custom.radius : helpers.getValueAtIndexOrDefault(dataset.pointHoverRadius, index, this.chart.options.elements.point.hoverRadius);
point._model.radius = point.custom && point.custom.hoverRadius ? point.custom.hoverRadius : helpers.getValueAtIndexOrDefault(dataset.pointHoverRadius, index, this.chart.options.elements.point.hoverRadius);
point._model.backgroundColor = point.custom && point.custom.hoverBackgroundColor ? point.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.color(point._model.backgroundColor).saturate(0.5).darken(0.1).rgbString());
point._model.borderColor = point.custom && point.custom.hoverBorderColor ? point.custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.color(point._model.borderColor).saturate(0.5).darken(0.1).rgbString());
point._model.borderWidth = point.custom && point.custom.hoverBorderWidth ? point.custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.pointBorderWidth, index, point._model.borderWidth);
point._model.borderWidth = point.custom && point.custom.hoverBorderWidth ? point.custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.pointHoverBorderWidth, index, point._model.borderWidth);
},
removeHoverStyle: function(point) {
@@ -268,9 +283,5 @@
point._model.borderColor = point.custom && point.custom.borderColor ? point.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().pointBorderColor, index, this.chart.options.elements.point.borderColor);
point._model.borderWidth = point.custom && point.custom.borderWidth ? point.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().pointBorderWidth, index, this.chart.options.elements.point.borderWidth);
}
});
}).call(this);

429
test/controller.doughnut.tests.js Normal file
View File

@@ -0,0 +1,429 @@
// Test the bar controller
describe('Doughnut controller tests', function() {
it('Should be constructed', function() {
var chart = {
data: {
datasets: [{
data: []
}]
}
};
var controller = new Chart.controllers.doughnut(chart, 0);
expect(controller).not.toBe(undefined);
expect(controller.index).toBe(0);
expect(chart.data.datasets[0].metaData).toEqual([]);
controller.updateIndex(1);
expect(controller.index).toBe(1);
});
it('Should create arc elements for each data item during initialization', function() {
var chart = {
data: {
datasets: [{
data: [10, 15, 0, 4]
}]
},
config: {
type: 'doughnut'
},
options: {
}
};
var controller = new Chart.controllers.doughnut(chart, 0);
expect(chart.data.datasets[0].metaData.length).toBe(4); // 4 rectangles created
expect(chart.data.datasets[0].metaData[0] instanceof Chart.elements.Arc).toBe(true);
expect(chart.data.datasets[0].metaData[1] instanceof Chart.elements.Arc).toBe(true);
expect(chart.data.datasets[0].metaData[2] instanceof Chart.elements.Arc).toBe(true);
expect(chart.data.datasets[0].metaData[3] instanceof Chart.elements.Arc).toBe(true);
});
it ('Should remove elements', function() {
var chart = {
data: {
datasets: [{
data: [10, 15, 0, 4]
}]
},
config: {
type: 'doughnut'
},
options: {
}
};
var controller = new Chart.controllers.doughnut(chart, 0);
controller.removeElement(1);
expect(chart.data.datasets[0].metaData.length).toBe(3);
});
it ('Should reset and update elements', function() {
var chart = {
chart: {
width: 100,
height: 200,
},
data: {
datasets: [{
data: [10, 15, 0, 4]
}, {
data: [1]
}],
labels: ['label0', 'label1', 'label2', 'label3']
},
config: {
type: 'doughnut'
},
options: {
animation: {
animateRotate: false,
animateScale: false
},
cutoutPercentage: 50,
elements: {
arc: {
backgroundColor: 'rgb(255, 0, 0)',
borderColor: 'rgb(0, 0, 255)',
borderWidth: 2,
hoverBackgroundColor: 'rgb(255, 255, 255)'
}
}
}
};
var controller = new Chart.controllers.doughnut(chart, 0);
controller.reset(); // reset first
expect(chart.data.datasets[0].metaData[0]._model).toEqual({
x: 50,
y: 100,
startAngle: Math.PI * -0.5,
circumference: 2.166614539857563,
outerRadius: 49,
innerRadius: 36.75,
});
expect(chart.data.datasets[0].metaData[1]._model).toEqual({
x: 50,
y: 100,
startAngle: Math.PI * -0.5,
circumference: 3.2499218097863447,
outerRadius: 49,
innerRadius: 36.75,
});
expect(chart.data.datasets[0].metaData[2]._model).toEqual({
x: 50,
y: 100,
startAngle: Math.PI * -0.5,
circumference: 0,
outerRadius: 49,
innerRadius: 36.75,
});
expect(chart.data.datasets[0].metaData[3]._model).toEqual({
x: 50,
y: 100,
startAngle: Math.PI * -0.5,
circumference: 0.8666458159430251,
outerRadius: 49,
innerRadius: 36.75,
});
controller.update();
expect(chart.data.datasets[0].metaData[0]._model).toEqual({
x: 50,
y: 100,
startAngle: Math.PI * -0.5,
endAngle: 0.5958182130626666,
circumference: 2.166614539857563,
outerRadius: 49,
innerRadius: 36.75,
backgroundColor: 'rgb(255, 0, 0)',
borderColor: 'rgb(0, 0, 255)',
borderWidth: 2,
hoverBackgroundColor: 'rgb(255, 255, 255)',
label: 'label0',
});
expect(chart.data.datasets[0].metaData[1]._model).toEqual({
x: 50,
y: 100,
startAngle: 0.5958182130626666,
endAngle: 3.8457400228490113,
circumference: 3.2499218097863447,
outerRadius: 49,
innerRadius: 36.75,
backgroundColor: 'rgb(255, 0, 0)',
borderColor: 'rgb(0, 0, 255)',
borderWidth: 2,
hoverBackgroundColor: 'rgb(255, 255, 255)',
label: 'label1'
});
expect(chart.data.datasets[0].metaData[2]._model).toEqual({
x: 50,
y: 100,
startAngle: 3.8457400228490113,
endAngle: 3.8457400228490113,
circumference: 0,
outerRadius: 49,
innerRadius: 36.75,
backgroundColor: 'rgb(255, 0, 0)',
borderColor: 'rgb(0, 0, 255)',
borderWidth: 2,
hoverBackgroundColor: 'rgb(255, 255, 255)',
label: 'label2'
});
expect(chart.data.datasets[0].metaData[3]._model).toEqual({
x: 50,
y: 100,
startAngle: 3.8457400228490113,
endAngle: 4.712385838792036,
circumference: 0.8666458159430251,
outerRadius: 49,
innerRadius: 36.75,
backgroundColor: 'rgb(255, 0, 0)',
borderColor: 'rgb(0, 0, 255)',
borderWidth: 2,
hoverBackgroundColor: 'rgb(255, 255, 255)',
label: 'label3'
});
// Change the amount of data and ensure that arcs are updated accordingly
chart.data.datasets[0].data = [1, 2]; // remove 2 elements from dataset 0
controller.update();
expect(chart.data.datasets[0].metaData.length).toBe(2);
expect(chart.data.datasets[0].metaData[0] instanceof Chart.elements.Arc).toBe(true);
expect(chart.data.datasets[0].metaData[1] instanceof Chart.elements.Arc).toBe(true);
// Add data
chart.data.datasets[0].data = [1, 2, 3, 4];
controller.update();
expect(chart.data.datasets[0].metaData.length).toBe(4);
expect(chart.data.datasets[0].metaData[0] instanceof Chart.elements.Arc).toBe(true);
expect(chart.data.datasets[0].metaData[1] instanceof Chart.elements.Arc).toBe(true);
expect(chart.data.datasets[0].metaData[2] instanceof Chart.elements.Arc).toBe(true);
expect(chart.data.datasets[0].metaData[3] instanceof Chart.elements.Arc).toBe(true);
});
it ('should draw all arcs', function() {
var chart = {
chart: {
width: 100,
height: 200,
},
data: {
datasets: [{
data: [10, 15, 0, 4]
}],
labels: ['label0', 'label1', 'label2', 'label3']
},
config: {
type: 'doughnut'
},
options: {
animation: {
animateRotate: false,
animateScale: false
},
cutoutPercentage: 50,
elements: {
arc: {
backgroundColor: 'rgb(255, 0, 0)',
borderColor: 'rgb(0, 0, 255)',
borderWidth: 2,
hoverBackgroundColor: 'rgb(255, 255, 255)'
}
}
}
};
var controller = new Chart.controllers.doughnut(chart, 0);
spyOn(chart.data.datasets[0].metaData[0], 'draw');
spyOn(chart.data.datasets[0].metaData[1], 'draw');
spyOn(chart.data.datasets[0].metaData[2], 'draw');
spyOn(chart.data.datasets[0].metaData[3], 'draw');
controller.draw();
expect(chart.data.datasets[0].metaData[0].draw.calls.count()).toBe(1);
expect(chart.data.datasets[0].metaData[1].draw.calls.count()).toBe(1);
expect(chart.data.datasets[0].metaData[2].draw.calls.count()).toBe(1);
expect(chart.data.datasets[0].metaData[3].draw.calls.count()).toBe(1);
});
it ('should set the hover style of an arc', function() {
var chart = {
chart: {
width: 100,
height: 200,
},
data: {
datasets: [{
data: [10, 15, 0, 4]
}],
labels: ['label0', 'label1', 'label2', 'label3']
},
config: {
type: 'doughnut'
},
options: {
animation: {
animateRotate: false,
animateScale: false
},
cutoutPercentage: 50,
elements: {
arc: {
backgroundColor: 'rgb(255, 0, 0)',
borderColor: 'rgb(0, 0, 255)',
borderWidth: 2,
}
}
}
};
var controller = new Chart.controllers.doughnut(chart, 0);
controller.reset(); // reset first
controller.update();
var arc = chart.data.datasets[0].metaData[0];
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;
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];
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,
};
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 = {
chart: {
width: 100,
height: 200,
},
data: {
datasets: [{
data: [10, 15, 0, 4]
}],
labels: ['label0', 'label1', 'label2', 'label3']
},
config: {
type: 'doughnut'
},
options: {
animation: {
animateRotate: false,
animateScale: false
},
cutoutPercentage: 50,
elements: {
arc: {
backgroundColor: 'rgb(255, 0, 0)',
borderColor: 'rgb(0, 0, 255)',
borderWidth: 2,
}
}
}
};
var controller = new Chart.controllers.doughnut(chart, 0);
controller.reset(); // reset first
controller.update();
var arc = chart.data.datasets[0].metaData[0];
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;
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];
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,
};
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);
});
});

814
test/controller.line.tests.js Normal file
View File

@@ -0,0 +1,814 @@
// Test the bar controller
describe('Line controller tests', function() {
it('Should be constructed', function() {
var chart = {
data: {
datasets: [{
xAxisID: 'myXAxis',
yAxisID: 'myYAxis',
data: []
}]
}
};
var controller = new Chart.controllers.line(chart, 0);
expect(controller).not.toBe(undefined);
expect(controller.index).toBe(0);
expect(chart.data.datasets[0].metaData).toEqual([]);
controller.updateIndex(1);
expect(controller.index).toBe(1);
});
it('Should use the first scale IDs if the dataset does not specify them', function() {
var chart = {
data: {
datasets: [{
data: []
}]
},
options: {
scales: {
xAxes: [{
id: 'firstXScaleID'
}],
yAxes: [{
id: 'firstYScaleID'
}]
}
}
};
var controller = new Chart.controllers.line(chart, 0);
expect(chart.data.datasets[0].xAxisID).toBe('firstXScaleID');
expect(chart.data.datasets[0].yAxisID).toBe('firstYScaleID');
});
it('Should create line elements and point elements for each data item during initialization', function() {
var chart = {
data: {
datasets: [{
data: [10, 15, 0, -4]
}]
},
config: {
type: 'line'
},
options: {
scales: {
xAxes: [{
id: 'firstXScaleID'
}],
yAxes: [{
id: 'firstYScaleID'
}]
}
}
};
var controller = new Chart.controllers.line(chart, 0);
expect(chart.data.datasets[0].metaData.length).toBe(4); // 4 points created
expect(chart.data.datasets[0].metaData[0] instanceof Chart.elements.Point).toBe(true);
expect(chart.data.datasets[0].metaData[1] instanceof Chart.elements.Point).toBe(true);
expect(chart.data.datasets[0].metaData[2] instanceof Chart.elements.Point).toBe(true);
expect(chart.data.datasets[0].metaData[3] instanceof Chart.elements.Point).toBe(true);
expect(chart.data.datasets[0].metaDataset instanceof Chart.elements.Line).toBe(true); // 1 line element
});
it('should remove elements', function() {
var chart = {
data: {
datasets: [{
data: [10, 15, 0, -4]
}]
},
config: {
type: 'line'
},
options: {
scales: {
xAxes: [{
id: 'firstXScaleID'
}],
yAxes: [{
id: 'firstYScaleID'
}]
}
}
};
var controller = new Chart.controllers.line(chart, 0);
controller.removeElement(0);
expect(chart.data.datasets[0].metaData.length).toBe(3);
});
it ('should draw all elements', function() {
var chart = {
data: {
datasets: [{
data: [10, 15, 0, -4]
}]
},
config: {
type: 'line'
},
options: {
scales: {
xAxes: [{
id: 'firstXScaleID'
}],
yAxes: [{
id: 'firstYScaleID'
}]
}
}
};
var controller = new Chart.controllers.line(chart, 0);
spyOn(chart.data.datasets[0].metaDataset, 'draw');
spyOn(chart.data.datasets[0].metaData[0], 'draw');
spyOn(chart.data.datasets[0].metaData[1], 'draw');
spyOn(chart.data.datasets[0].metaData[2], 'draw');
spyOn(chart.data.datasets[0].metaData[3], 'draw');
controller.draw();
expect(chart.data.datasets[0].metaDataset.draw.calls.count()).toBe(1);
expect(chart.data.datasets[0].metaData[0].draw.calls.count()).toBe(1);
expect(chart.data.datasets[0].metaData[2].draw.calls.count()).toBe(1);
expect(chart.data.datasets[0].metaData[3].draw.calls.count()).toBe(1);
});
it ('should update elements', function() {
var chart = {
chartArea: {
bottom: 100,
left: 0,
right: 200,
top: 0
},
data: {
datasets: [{
data: [10, 15, 0, -4]
}]
},
config: {
type: 'line'
},
options: {
elements: {
line: {
backgroundColor: 'rgb(255, 0, 0)',
borderCapStyle: 'round',
borderColor: 'rgb(0, 255, 0)',
borderDash: [],
borderDashOffset: 0.1,
borderJoinStyle: 'bevel',
borderWidth: 1.2,
fill: true,
skipNull: true,
tension: 0.1,
},
point: {
backgroundColor: Chart.defaults.global.defaultColor,
borderWidth: 1,
borderColor: Chart.defaults.global.defaultColor,
hitRadius: 1,
hoverRadius: 4,
hoverBorderWidth: 1,
radius: 3,
}
},
scales: {
xAxes: [{
id: 'firstXScaleID'
}],
yAxes: [{
id: 'firstYScaleID'
}]
}
},
scales: {
firstXScaleID: {
getPointPixelForValue: function(value, index) {
return index * 3;
}
},
firstYScaleID: {
calculateBarBase: function(datasetIndex, index) {
return this.getPixelForValue(0);
},
getPointPixelForValue: function(value, datasetIndex, index) {
return this.getPixelForValue(value);
},
getPixelForValue: function(value) {
return value * 2;
},
max: 10,
min: -10,
}
}
};
var controller = new Chart.controllers.line(chart, 0);
controller.update();
// Line element
expect(chart.data.datasets[0].metaDataset._model).toEqual({
backgroundColor: 'rgb(255, 0, 0)',
borderCapStyle: 'round',
borderColor: 'rgb(0, 255, 0)',
borderDash: [],
borderDashOffset: 0.1,
borderJoinStyle: 'bevel',
borderWidth: 1.2,
fill: true,
drawNull: undefined,
skipNull: true,
tension: 0.1,
scaleTop: undefined,
scaleBottom: undefined,
scaleZero: 0,
});
expect(chart.data.datasets[0].metaData[0]._model).toEqual({
backgroundColor: Chart.defaults.global.defaultColor,
borderWidth: 1,
borderColor: Chart.defaults.global.defaultColor,
hitRadius: 1,
radius: 3,
skip: false,
tension: 0.1,
// Point
x: 0,
y: 20,
// Control points
controlPointPreviousX: 0,
controlPointPreviousY: 20,
controlPointNextX: 0.30000000000000004,
controlPointNextY: 21,
});
expect(chart.data.datasets[0].metaData[1]._model).toEqual({
backgroundColor: Chart.defaults.global.defaultColor,
borderWidth: 1,
borderColor: Chart.defaults.global.defaultColor,
hitRadius: 1,
radius: 3,
skip: false,
tension: 0.1,
// Point
x: 3,
y: 30,
// Control points
controlPointPreviousX: 2.845671490812908,
controlPointPreviousY: 30.514428363956974,
controlPointNextX: 3.4456714908129076,
controlPointNextY: 28.514428363956974,
});
expect(chart.data.datasets[0].metaData[2]._model).toEqual({
backgroundColor: Chart.defaults.global.defaultColor,
borderWidth: 1,
borderColor: Chart.defaults.global.defaultColor,
hitRadius: 1,
radius: 3,
skip: false,
tension: 0.1,
// Point
x: 6,
y: 0,
// Control points
controlPointPreviousX: 5.532486979550596,
controlPointPreviousY: 2.9609157961795605,
controlPointNextX: 6.132486979550595,
controlPointNextY: 0,
});
expect(chart.data.datasets[0].metaData[3]._model).toEqual({
backgroundColor: Chart.defaults.global.defaultColor,
borderWidth: 1,
borderColor: Chart.defaults.global.defaultColor,
hitRadius: 1,
radius: 3,
skip: false,
tension: 0.1,
// Point
x: 9,
y: -8,
// Control points
controlPointPreviousX: 8.7,
controlPointPreviousY: 0,
controlPointNextX: 9,
controlPointNextY: 0,
});
// Use dataset level styles for lines & points
chart.data.datasets[0].tension = 0.2;
chart.data.datasets[0].backgroundColor = 'rgb(98, 98, 98)';
chart.data.datasets[0].borderColor = 'rgb(8, 8, 8)';
chart.data.datasets[0].borderWidth = 0.55;
chart.data.datasets[0].borderCapStyle = 'butt';
chart.data.datasets[0].borderDash = [2, 3];
chart.data.datasets[0].borderDashOffset = 7;
chart.data.datasets[0].borderJoinStyle = 'miter';
chart.data.datasets[0].fill = false;
chart.data.datasets[0].skipNull = false;
chart.data.datasets[0].drawNull = true;
// point styles
chart.data.datasets[0].radius = 22;
chart.data.datasets[0].hitRadius = 3.3;
chart.data.datasets[0].pointBackgroundColor = 'rgb(128, 129, 130)';
chart.data.datasets[0].pointBorderColor = 'rgb(56, 57, 58)';
chart.data.datasets[0].pointBorderWidth = 1.123;
controller.update();
expect(chart.data.datasets[0].metaDataset._model).toEqual({
backgroundColor: 'rgb(98, 98, 98)',
borderCapStyle: 'butt',
borderColor: 'rgb(8, 8, 8)',
borderDash: [2, 3],
borderDashOffset: 7,
borderJoinStyle: 'miter',
borderWidth: 0.55,
fill: false,
drawNull: true,
skipNull: false,
tension: 0.2,
scaleTop: undefined,
scaleBottom: undefined,
scaleZero: 0,
});
expect(chart.data.datasets[0].metaData[0]._model).toEqual({
backgroundColor: 'rgb(128, 129, 130)',
borderWidth: 1.123,
borderColor: 'rgb(56, 57, 58)',
hitRadius: 3.3,
radius: 22,
skip: false,
tension: 0.2,
// Point
x: 0,
y: 20,
// Control points
controlPointPreviousX: 0,
controlPointPreviousY: 20,
controlPointNextX: 0.6000000000000001,
controlPointNextY: 22,
});
expect(chart.data.datasets[0].metaData[1]._model).toEqual({
backgroundColor: 'rgb(128, 129, 130)',
borderWidth: 1.123,
borderColor: 'rgb(56, 57, 58)',
hitRadius: 3.3,
radius: 22,
skip: false,
tension: 0.2,
// Point
x: 3,
y: 30,
// Control points
controlPointPreviousX: 2.6913429816258154,
controlPointPreviousY: 31.028856727913947,
controlPointNextX: 3.891342981625815,
controlPointNextY: 27.028856727913947,
});
expect(chart.data.datasets[0].metaData[2]._model).toEqual({
backgroundColor: 'rgb(128, 129, 130)',
borderWidth: 1.123,
borderColor: 'rgb(56, 57, 58)',
hitRadius: 3.3,
radius: 22,
skip: false,
tension: 0.2,
// Point
x: 6,
y: 0,
// Control points
controlPointPreviousX: 5.0649739591011915,
controlPointPreviousY: 5.921831592359121,
controlPointNextX: 6.264973959101192,
controlPointNextY: 0,
});
expect(chart.data.datasets[0].metaData[3]._model).toEqual({
backgroundColor: 'rgb(128, 129, 130)',
borderWidth: 1.123,
borderColor: 'rgb(56, 57, 58)',
hitRadius: 3.3,
radius: 22,
skip: false,
tension: 0.2,
// Point
x: 9,
y: -8,
// Control points
controlPointPreviousX: 8.4,
controlPointPreviousY: 0,
controlPointNextX: 9,
controlPointNextY: 0,
});
// Use custom styles for lines & first point
chart.data.datasets[0].metaDataset.custom = {
tension: 0.25,
backgroundColor: 'rgb(55, 55, 54)',
borderColor: 'rgb(8, 7, 6)',
borderWidth: 0.3,
borderCapStyle: 'square',
borderDash: [4, 3],
borderDashOffset: 4.4,
borderJoinStyle: 'round',
fill: true,
skipNull: true,
drawNull: false,
};
// point styles
chart.data.datasets[0].metaData[0].custom = {
radius: 2.2,
backgroundColor: 'rgb(0, 1, 3)',
borderColor: 'rgb(4, 6, 8)',
borderWidth: 0.787,
tension: 0.15,
skip: true,
hitRadius: 5,
};
controller.update();
expect(chart.data.datasets[0].metaDataset._model).toEqual({
backgroundColor: 'rgb(55, 55, 54)',
borderCapStyle: 'square',
borderColor: 'rgb(8, 7, 6)',
borderDash: [4, 3],
borderDashOffset: 4.4,
borderJoinStyle: 'round',
borderWidth: 0.3,
fill: true,
drawNull: true,
skipNull: false,
tension: 0.25,
scaleTop: undefined,
scaleBottom: undefined,
scaleZero: 0,
});
expect(chart.data.datasets[0].metaData[0]._model).toEqual({
backgroundColor: 'rgb(0, 1, 3)',
borderWidth: 0.787,
borderColor: 'rgb(4, 6, 8)',
hitRadius: 5,
radius: 2.2,
skip: true,
tension: 0.15,
// Point
x: 0,
y: 20,
// Control points
controlPointPreviousX: 0,
controlPointPreviousY: 20,
controlPointNextX: 0.44999999999999996,
controlPointNextY: 21.5,
});
});
it ('should handle number of data point changes in update', function() {
var chart = {
chartArea: {
bottom: 100,
left: 0,
right: 200,
top: 0
},
data: {
datasets: [{
data: [10, 15, 0, -4]
}]
},
config: {
type: 'line'
},
options: {
elements: {
line: {
backgroundColor: 'rgb(255, 0, 0)',
borderCapStyle: 'round',
borderColor: 'rgb(0, 255, 0)',
borderDash: [],
borderDashOffset: 0.1,
borderJoinStyle: 'bevel',
borderWidth: 1.2,
fill: true,
skipNull: true,
tension: 0.1,
},
point: {
backgroundColor: Chart.defaults.global.defaultColor,
borderWidth: 1,
borderColor: Chart.defaults.global.defaultColor,
hitRadius: 1,
hoverRadius: 4,
hoverBorderWidth: 1,
radius: 3,
}
},
scales: {
xAxes: [{
id: 'firstXScaleID'
}],
yAxes: [{
id: 'firstYScaleID'
}]
}
},
scales: {
firstXScaleID: {
getPointPixelForValue: function(value, index) {
return index * 3;
}
},
firstYScaleID: {
calculateBarBase: function(datasetIndex, index) {
return this.getPixelForValue(0);
},
getPointPixelForValue: function(value, datasetIndex, index) {
return this.getPixelForValue(value);
},
getPixelForValue: function(value) {
return value * 2;
},
max: 10,
min: -10,
}
}
};
var controller = new Chart.controllers.line(chart, 0);
chart.data.datasets[0].data = [1, 2]; // remove 2 items
controller.update();
expect(chart.data.datasets[0].metaData.length).toBe(2);
expect(chart.data.datasets[0].metaData[0] instanceof Chart.elements.Point).toBe(true);
expect(chart.data.datasets[0].metaData[1] instanceof Chart.elements.Point).toBe(true);
chart.data.datasets[0].data = [1, 2, 3, 4, 5]; // add 3 items
controller.update();
expect(chart.data.datasets[0].metaData.length).toBe(5);
expect(chart.data.datasets[0].metaData[0] instanceof Chart.elements.Point).toBe(true);
expect(chart.data.datasets[0].metaData[1] instanceof Chart.elements.Point).toBe(true);
expect(chart.data.datasets[0].metaData[2] instanceof Chart.elements.Point).toBe(true);
expect(chart.data.datasets[0].metaData[3] instanceof Chart.elements.Point).toBe(true);
expect(chart.data.datasets[0].metaData[4] instanceof Chart.elements.Point).toBe(true);
});
it ('should set point hover styles', function() {
var chart = {
chartArea: {
bottom: 100,
left: 0,
right: 200,
top: 0
},
data: {
datasets: [{
data: [10, 15, 0, -4]
}]
},
config: {
type: 'line'
},
options: {
elements: {
line: {
backgroundColor: 'rgb(255, 0, 0)',
borderCapStyle: 'round',
borderColor: 'rgb(0, 255, 0)',
borderDash: [],
borderDashOffset: 0.1,
borderJoinStyle: 'bevel',
borderWidth: 1.2,
fill: true,
skipNull: true,
tension: 0.1,
},
point: {
backgroundColor: 'rgb(255, 255, 0)',
borderWidth: 1,
borderColor: 'rgb(255, 255, 255)',
hitRadius: 1,
hoverRadius: 4,
hoverBorderWidth: 1,
radius: 3,
}
},
scales: {
xAxes: [{
id: 'firstXScaleID'
}],
yAxes: [{
id: 'firstYScaleID'
}]
}
},
scales: {
firstXScaleID: {
getPointPixelForValue: function(value, index) {
return index * 3;
}
},
firstYScaleID: {
calculateBarBase: function(datasetIndex, index) {
return this.getPixelForValue(0);
},
getPointPixelForValue: function(value, datasetIndex, index) {
return this.getPixelForValue(value);
},
getPixelForValue: function(value) {
return value * 2;
},
max: 10,
min: -10,
}
}
};
var controller = new Chart.controllers.line(chart, 0);
controller.update();
var point = chart.data.datasets[0].metaData[0];
controller.setHoverStyle(point);
expect(point._model.backgroundColor).toBe('rgb(229, 230, 0)');
expect(point._model.borderColor).toBe('rgb(230, 230, 230)');
expect(point._model.borderWidth).toBe(1);
expect(point._model.radius).toBe(4);
// Can set hover style per dataset
chart.data.datasets[0].pointHoverRadius = 3.3;
chart.data.datasets[0].pointHoverBackgroundColor = 'rgb(77, 79, 81)';
chart.data.datasets[0].pointHoverBorderColor = 'rgb(123, 125, 127)';
chart.data.datasets[0].pointHoverBorderWidth = 2.1;
controller.setHoverStyle(point);
expect(point._model.backgroundColor).toBe('rgb(77, 79, 81)');
expect(point._model.borderColor).toBe('rgb(123, 125, 127)');
expect(point._model.borderWidth).toBe(2.1);
expect(point._model.radius).toBe(3.3);
// Custom style
point.custom = {
hoverRadius: 4.4,
hoverBorderWidth: 5.5,
hoverBackgroundColor: 'rgb(0, 0, 0)',
hoverBorderColor: 'rgb(10, 10, 10)'
};
controller.setHoverStyle(point);
expect(point._model.backgroundColor).toBe('rgb(0, 0, 0)');
expect(point._model.borderColor).toBe('rgb(10, 10, 10)');
expect(point._model.borderWidth).toBe(5.5);
expect(point._model.radius).toBe(4.4);
});
it ('should remove hover styles', function() {
var chart = {
chartArea: {
bottom: 100,
left: 0,
right: 200,
top: 0
},
data: {
datasets: [{
data: [10, 15, 0, -4]
}]
},
config: {
type: 'line'
},
options: {
elements: {
line: {
backgroundColor: 'rgb(255, 0, 0)',
borderCapStyle: 'round',
borderColor: 'rgb(0, 255, 0)',
borderDash: [],
borderDashOffset: 0.1,
borderJoinStyle: 'bevel',
borderWidth: 1.2,
fill: true,
skipNull: true,
tension: 0.1,
},
point: {
backgroundColor: 'rgb(255, 255, 0)',
borderWidth: 1,
borderColor: 'rgb(255, 255, 255)',
hitRadius: 1,
hoverRadius: 4,
hoverBorderWidth: 1,
radius: 3,
}
},
scales: {
xAxes: [{
id: 'firstXScaleID'
}],
yAxes: [{
id: 'firstYScaleID'
}]
}
},
scales: {
firstXScaleID: {
getPointPixelForValue: function(value, index) {
return index * 3;
}
},
firstYScaleID: {
calculateBarBase: function(datasetIndex, index) {
return this.getPixelForValue(0);
},
getPointPixelForValue: function(value, datasetIndex, index) {
return this.getPixelForValue(value);
},
getPixelForValue: function(value) {
return value * 2;
},
max: 10,
min: -10,
}
}
};
var controller = new Chart.controllers.line(chart, 0);
controller.update();
var point = chart.data.datasets[0].metaData[0];
chart.options.elements.point.backgroundColor = 'rgb(45, 46, 47)';
chart.options.elements.point.borderColor = 'rgb(50, 51, 52)';
chart.options.elements.point.borderWidth = 10.1;
chart.options.elements.point.radius = 1.01;
controller.removeHoverStyle(point);
expect(point._model.backgroundColor).toBe('rgb(45, 46, 47)');
expect(point._model.borderColor).toBe('rgb(50, 51, 52)');
expect(point._model.borderWidth).toBe(10.1);
expect(point._model.radius).toBe(1.01);
// Can set hover style per dataset
chart.data.datasets[0].radius = 3.3;
chart.data.datasets[0].pointBackgroundColor = 'rgb(77, 79, 81)';
chart.data.datasets[0].pointBorderColor = 'rgb(123, 125, 127)';
chart.data.datasets[0].pointBorderWidth = 2.1;
controller.removeHoverStyle(point);
expect(point._model.backgroundColor).toBe('rgb(77, 79, 81)');
expect(point._model.borderColor).toBe('rgb(123, 125, 127)');
expect(point._model.borderWidth).toBe(2.1);
expect(point._model.radius).toBe(3.3);
// Custom style
point.custom = {
radius: 4.4,
borderWidth: 5.5,
backgroundColor: 'rgb(0, 0, 0)',
borderColor: 'rgb(10, 10, 10)'
};
controller.removeHoverStyle(point);
expect(point._model.backgroundColor).toBe('rgb(0, 0, 0)');
expect(point._model.borderColor).toBe('rgb(10, 10, 10)');
expect(point._model.borderWidth).toBe(5.5);
expect(point._model.radius).toBe(4.4);
});
});