mirror of
https://github.com/chartjs/Chart.js.git
synced 2024-10-06 12:19:08 +02:00
bb5f12ad2a
* Support object values for bar charts * Check if null or undefined * Refactor category scale code * Make isNullOrUndef global
547 lines
12 KiB
JavaScript
547 lines
12 KiB
JavaScript
// Test the category scale
|
|
|
|
describe('Category scale tests', function() {
|
|
it('Should register the constructor with the scale service', function() {
|
|
var Constructor = Chart.scaleService.getScaleConstructor('category');
|
|
expect(Constructor).not.toBe(undefined);
|
|
expect(typeof Constructor).toBe('function');
|
|
});
|
|
|
|
it('Should have the correct default config', function() {
|
|
var defaultConfig = Chart.scaleService.getScaleDefaults('category');
|
|
expect(defaultConfig).toEqual({
|
|
display: true,
|
|
|
|
gridLines: {
|
|
color: 'rgba(0, 0, 0, 0.1)',
|
|
drawBorder: true,
|
|
drawOnChartArea: true,
|
|
drawTicks: true, // draw ticks extending towards the label
|
|
tickMarkLength: 10,
|
|
lineWidth: 1,
|
|
offsetGridLines: false,
|
|
display: true,
|
|
zeroLineColor: 'rgba(0,0,0,0.25)',
|
|
zeroLineWidth: 1,
|
|
zeroLineBorderDash: [],
|
|
zeroLineBorderDashOffset: 0.0,
|
|
borderDash: [],
|
|
borderDashOffset: 0.0
|
|
},
|
|
position: 'bottom',
|
|
offset: false,
|
|
scaleLabel: Chart.defaults.scale.scaleLabel,
|
|
ticks: {
|
|
beginAtZero: false,
|
|
minRotation: 0,
|
|
maxRotation: 50,
|
|
mirror: false,
|
|
padding: 0,
|
|
reverse: false,
|
|
display: true,
|
|
callback: defaultConfig.ticks.callback, // make this nicer, then check explicitly below
|
|
autoSkip: true,
|
|
autoSkipPadding: 0,
|
|
labelOffset: 0,
|
|
minor: {},
|
|
major: {},
|
|
}
|
|
});
|
|
|
|
// Is this actually a function
|
|
expect(defaultConfig.ticks.callback).toEqual(jasmine.any(Function));
|
|
});
|
|
|
|
it('Should generate ticks from the data labels', function() {
|
|
var scaleID = 'myScale';
|
|
|
|
var mockData = {
|
|
datasets: [{
|
|
yAxisID: scaleID,
|
|
data: [10, 5, 0, 25, 78]
|
|
}],
|
|
labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick5']
|
|
};
|
|
|
|
var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('category'));
|
|
var Constructor = Chart.scaleService.getScaleConstructor('category');
|
|
var scale = new Constructor({
|
|
ctx: {},
|
|
options: config,
|
|
chart: {
|
|
data: mockData
|
|
},
|
|
id: scaleID
|
|
});
|
|
|
|
scale.determineDataLimits();
|
|
scale.buildTicks();
|
|
expect(scale.ticks).toEqual(mockData.labels);
|
|
});
|
|
|
|
it('Should generate ticks from the data xLabels', function() {
|
|
var scaleID = 'myScale';
|
|
|
|
var mockData = {
|
|
datasets: [{
|
|
yAxisID: scaleID,
|
|
data: [10, 5, 0, 25, 78]
|
|
}],
|
|
xLabels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick5']
|
|
};
|
|
|
|
var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('category'));
|
|
var Constructor = Chart.scaleService.getScaleConstructor('category');
|
|
var scale = new Constructor({
|
|
ctx: {},
|
|
options: config,
|
|
chart: {
|
|
data: mockData
|
|
},
|
|
id: scaleID
|
|
});
|
|
|
|
scale.determineDataLimits();
|
|
scale.buildTicks();
|
|
expect(scale.ticks).toEqual(mockData.xLabels);
|
|
});
|
|
|
|
it('Should generate ticks from the data yLabels', function() {
|
|
var scaleID = 'myScale';
|
|
|
|
var mockData = {
|
|
datasets: [{
|
|
yAxisID: scaleID,
|
|
data: [10, 5, 0, 25, 78]
|
|
}],
|
|
yLabels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick5']
|
|
};
|
|
|
|
var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('category'));
|
|
config.position = 'left'; // y axis
|
|
var Constructor = Chart.scaleService.getScaleConstructor('category');
|
|
var scale = new Constructor({
|
|
ctx: {},
|
|
options: config,
|
|
chart: {
|
|
data: mockData
|
|
},
|
|
id: scaleID
|
|
});
|
|
|
|
scale.determineDataLimits();
|
|
scale.buildTicks();
|
|
expect(scale.ticks).toEqual(mockData.yLabels);
|
|
});
|
|
|
|
it('Should generate ticks from the axis labels', function() {
|
|
var labels = ['tick1', 'tick2', 'tick3', 'tick4', 'tick5'];
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
data: [10, 5, 0, 25, 78]
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'x',
|
|
type: 'category',
|
|
labels: labels
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
|
|
var scale = chart.scales.x;
|
|
expect(scale.ticks).toEqual(labels);
|
|
});
|
|
|
|
it('should get the correct label for the index', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
datasets: [{
|
|
xAxisID: 'xScale0',
|
|
yAxisID: 'yScale0',
|
|
data: [10, 5, 0, 25, 78]
|
|
}],
|
|
labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick5']
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'xScale0',
|
|
type: 'category',
|
|
position: 'bottom'
|
|
}],
|
|
yAxes: [{
|
|
id: 'yScale0',
|
|
type: 'linear'
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
|
|
var scale = chart.scales.xScale0;
|
|
|
|
expect(scale.getLabelForIndex(1, 0)).toBe('tick2');
|
|
});
|
|
|
|
it('Should get the correct pixel for a value when horizontal', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
datasets: [{
|
|
xAxisID: 'xScale0',
|
|
yAxisID: 'yScale0',
|
|
data: [10, 5, 0, 25, 78]
|
|
}],
|
|
labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick_last']
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'xScale0',
|
|
type: 'category',
|
|
position: 'bottom'
|
|
}],
|
|
yAxes: [{
|
|
id: 'yScale0',
|
|
type: 'linear'
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
|
|
var xScale = chart.scales.xScale0;
|
|
expect(xScale.getPixelForValue(0, 0, 0)).toBeCloseToPixel(23 + 6); // plus lineHeight
|
|
expect(xScale.getValueForPixel(23)).toBe(0);
|
|
|
|
expect(xScale.getPixelForValue(0, 4, 0)).toBeCloseToPixel(487);
|
|
expect(xScale.getValueForPixel(487)).toBe(4);
|
|
|
|
xScale.options.offset = true;
|
|
chart.update();
|
|
|
|
expect(xScale.getPixelForValue(0, 0, 0)).toBeCloseToPixel(71 + 6); // plus lineHeight
|
|
expect(xScale.getValueForPixel(69)).toBe(0);
|
|
|
|
expect(xScale.getPixelForValue(0, 4, 0)).toBeCloseToPixel(461);
|
|
expect(xScale.getValueForPixel(417)).toBe(4);
|
|
});
|
|
|
|
it('Should get the correct pixel for a value when there are repeated labels', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
datasets: [{
|
|
xAxisID: 'xScale0',
|
|
yAxisID: 'yScale0',
|
|
data: [10, 5, 0, 25, 78]
|
|
}],
|
|
labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick_last']
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'xScale0',
|
|
type: 'category',
|
|
position: 'bottom'
|
|
}],
|
|
yAxes: [{
|
|
id: 'yScale0',
|
|
type: 'linear'
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
|
|
var xScale = chart.scales.xScale0;
|
|
expect(xScale.getPixelForValue('tick_1', 0, 0)).toBeCloseToPixel(23 + 6); // plus lineHeight
|
|
expect(xScale.getPixelForValue('tick_1', 1, 0)).toBeCloseToPixel(143);
|
|
});
|
|
|
|
it('Should get the correct pixel for a value when horizontal and zoomed', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
datasets: [{
|
|
xAxisID: 'xScale0',
|
|
yAxisID: 'yScale0',
|
|
data: [10, 5, 0, 25, 78]
|
|
}],
|
|
labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick_last']
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'xScale0',
|
|
type: 'category',
|
|
position: 'bottom',
|
|
ticks: {
|
|
min: 'tick2',
|
|
max: 'tick4'
|
|
}
|
|
}],
|
|
yAxes: [{
|
|
id: 'yScale0',
|
|
type: 'linear'
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
|
|
var xScale = chart.scales.xScale0;
|
|
expect(xScale.getPixelForValue(0, 1, 0)).toBeCloseToPixel(23 + 6); // plus lineHeight
|
|
expect(xScale.getPixelForValue(0, 3, 0)).toBeCloseToPixel(496);
|
|
|
|
xScale.options.offset = true;
|
|
chart.update();
|
|
|
|
expect(xScale.getPixelForValue(0, 1, 0)).toBeCloseToPixel(103 + 6); // plus lineHeight
|
|
expect(xScale.getPixelForValue(0, 3, 0)).toBeCloseToPixel(429);
|
|
});
|
|
|
|
it('should get the correct pixel for a value when vertical', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
datasets: [{
|
|
xAxisID: 'xScale0',
|
|
yAxisID: 'yScale0',
|
|
data: ['3', '5', '1', '4', '2']
|
|
}],
|
|
labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick5'],
|
|
yLabels: ['1', '2', '3', '4', '5']
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'xScale0',
|
|
type: 'category',
|
|
position: 'bottom',
|
|
}],
|
|
yAxes: [{
|
|
id: 'yScale0',
|
|
type: 'category',
|
|
position: 'left'
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
|
|
var yScale = chart.scales.yScale0;
|
|
expect(yScale.getPixelForValue(0, 0, 0)).toBeCloseToPixel(32);
|
|
expect(yScale.getValueForPixel(32)).toBe(0);
|
|
|
|
expect(yScale.getPixelForValue(0, 4, 0)).toBeCloseToPixel(484);
|
|
expect(yScale.getValueForPixel(484)).toBe(4);
|
|
|
|
yScale.options.offset = true;
|
|
chart.update();
|
|
|
|
expect(yScale.getPixelForValue(0, 0, 0)).toBeCloseToPixel(77);
|
|
expect(yScale.getValueForPixel(77)).toBe(0);
|
|
|
|
expect(yScale.getPixelForValue(0, 4, 0)).toBeCloseToPixel(437);
|
|
expect(yScale.getValueForPixel(437)).toBe(4);
|
|
});
|
|
|
|
it('should get the correct pixel for a value when vertical and zoomed', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
datasets: [{
|
|
xAxisID: 'xScale0',
|
|
yAxisID: 'yScale0',
|
|
data: ['3', '5', '1', '4', '2']
|
|
}],
|
|
labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick5'],
|
|
yLabels: ['1', '2', '3', '4', '5']
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'xScale0',
|
|
type: 'category',
|
|
position: 'bottom',
|
|
}],
|
|
yAxes: [{
|
|
id: 'yScale0',
|
|
type: 'category',
|
|
position: 'left',
|
|
ticks: {
|
|
min: '2',
|
|
max: '4'
|
|
}
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
|
|
var yScale = chart.scales.yScale0;
|
|
|
|
expect(yScale.getPixelForValue(0, 1, 0)).toBeCloseToPixel(32);
|
|
expect(yScale.getPixelForValue(0, 3, 0)).toBeCloseToPixel(484);
|
|
|
|
yScale.options.offset = true;
|
|
chart.update();
|
|
|
|
expect(yScale.getPixelForValue(0, 1, 0)).toBeCloseToPixel(107);
|
|
expect(yScale.getPixelForValue(0, 3, 0)).toBeCloseToPixel(407);
|
|
});
|
|
|
|
it('Should get the correct pixel for an object value when horizontal', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
datasets: [{
|
|
xAxisID: 'xScale0',
|
|
yAxisID: 'yScale0',
|
|
data: [
|
|
{x: 0, y: 10},
|
|
{x: 1, y: 5},
|
|
{x: 2, y: 0},
|
|
{x: 3, y: 25},
|
|
{x: 0, y: 78}
|
|
]
|
|
}],
|
|
labels: [0, 1, 2, 3]
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'xScale0',
|
|
type: 'category',
|
|
position: 'bottom'
|
|
}],
|
|
yAxes: [{
|
|
id: 'yScale0',
|
|
type: 'linear'
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
|
|
var xScale = chart.scales.xScale0;
|
|
expect(xScale.getPixelForValue({x: 0, y: 10}, 0, 0)).toBeCloseToPixel(29);
|
|
expect(xScale.getPixelForValue({x: 3, y: 25}, 3, 0)).toBeCloseToPixel(506);
|
|
expect(xScale.getPixelForValue({x: 0, y: 78}, 4, 0)).toBeCloseToPixel(29);
|
|
});
|
|
|
|
it('Should get the correct pixel for an object value when vertical', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
datasets: [{
|
|
xAxisID: 'xScale0',
|
|
yAxisID: 'yScale0',
|
|
data: [
|
|
{x: 0, y: 2},
|
|
{x: 1, y: 4},
|
|
{x: 2, y: 0},
|
|
{x: 3, y: 3},
|
|
{x: 0, y: 1}
|
|
]
|
|
}],
|
|
labels: [0, 1, 2, 3],
|
|
yLabels: [0, 1, 2, 3, 4]
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'xScale0',
|
|
type: 'category',
|
|
position: 'bottom'
|
|
}],
|
|
yAxes: [{
|
|
id: 'yScale0',
|
|
type: 'category',
|
|
position: 'left'
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
|
|
var yScale = chart.scales.yScale0;
|
|
expect(yScale.getPixelForValue({x: 0, y: 2}, 0, 0)).toBeCloseToPixel(257);
|
|
expect(yScale.getPixelForValue({x: 0, y: 1}, 4, 0)).toBeCloseToPixel(144);
|
|
});
|
|
|
|
it('Should get the correct pixel for an object value in a bar chart', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'bar',
|
|
data: {
|
|
datasets: [{
|
|
xAxisID: 'xScale0',
|
|
yAxisID: 'yScale0',
|
|
data: [
|
|
{x: 0, y: 10},
|
|
{x: 1, y: 5},
|
|
{x: 2, y: 0},
|
|
{x: 3, y: 25},
|
|
{x: 0, y: 78}
|
|
]
|
|
}],
|
|
labels: [0, 1, 2, 3]
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'xScale0',
|
|
type: 'category',
|
|
position: 'bottom'
|
|
}],
|
|
yAxes: [{
|
|
id: 'yScale0',
|
|
type: 'linear'
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
|
|
var xScale = chart.scales.xScale0;
|
|
expect(xScale.getPixelForValue(null, 0, 0)).toBeCloseToPixel(89);
|
|
expect(xScale.getPixelForValue(null, 3, 0)).toBeCloseToPixel(449);
|
|
expect(xScale.getPixelForValue(null, 4, 0)).toBeCloseToPixel(89);
|
|
});
|
|
|
|
it('Should get the correct pixel for an object value in a horizontal bar chart', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'horizontalBar',
|
|
data: {
|
|
datasets: [{
|
|
xAxisID: 'xScale0',
|
|
yAxisID: 'yScale0',
|
|
data: [
|
|
{x: 10, y: 0},
|
|
{x: 5, y: 1},
|
|
{x: 0, y: 2},
|
|
{x: 25, y: 3},
|
|
{x: 78, y: 0}
|
|
]
|
|
}],
|
|
labels: [0, 1, 2, 3]
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'xScale0',
|
|
type: 'linear',
|
|
position: 'bottom'
|
|
}],
|
|
yAxes: [{
|
|
id: 'yScale0',
|
|
type: 'category'
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
|
|
var yScale = chart.scales.yScale0;
|
|
expect(yScale.getPixelForValue(null, 0, 0)).toBeCloseToPixel(88);
|
|
expect(yScale.getPixelForValue(null, 3, 0)).toBeCloseToPixel(426);
|
|
expect(yScale.getPixelForValue(null, 4, 0)).toBeCloseToPixel(88);
|
|
});
|
|
});
|